Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS2484063 A
Publication typeGrant
Publication dateOct 11, 1949
Filing dateAug 19, 1944
Priority dateAug 19, 1944
Publication numberUS 2484063 A, US 2484063A, US-A-2484063, US2484063 A, US2484063A
InventorsAckley Charles S
Original AssigneeThermactor Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electric heater for subsurface materials
US 2484063 A
Images(2)
Previous page
Next page
Description  (OCR text may contain errors)

Oct, l, 1949. c. s. ACKLEY ELECTRIC HEATER FOR SUBSURFACE MATERIALS 2 sheets-snaai 1 Filed Aug. 19, 1944 2 all.

.Nullllilalllalllla .fil l w L #Y TK E ma @QN nh V. KQ m5 .O a 5 EM l C 0 A f .f H2 fo 1 EVENTOR.

2 Sheets-Sheet 2 YM n @Y Kwfc M Am 5g S E n@ AH H CV. B

C. S. ACKLEY ELECTRIC HEATER FOR SUBSURFACE MATERIALS nrw!! llJlillllllwwlll 1,

oct. 11, 1949.

Filed Aug. 19, 1944 Patented Oct. 11, 1949 ELECTRIC HEATER FOR SUBSURFACE.

' MATERIALS Charles S. icldey, New York, N. Y., assignor to Thermactor Corporation, New York, N. Y., a corporation of Delaware l Application August 19, 1944, Serial No. 550,210

2 Claims. 1 The invention relates to heat treatingrof subsurface materials.

Pursuant to the invention, sub-surface materials are raised in temperatures in elevation of that of the earth by the employment of` ref" motely controlled electrical heating means. In general, the improved sub-surface electricalheating means comprises outer tubular means, inner tubular means of high thermal conductivity, elecfor the purposes of initiating tapping of deposits of crude oil, gas formations, and the like.

The invention is applicable :in connection or in association with inventions set forth and claimed in my U. S. Patents No. 2,232,898, dated February 25, 1941, entitled Method of solidifying porous earth materials, and No. 2,235,695, dated March 18, 194,1, entitled Method of rendering earth materials solid, pursuant to which sulphur or other trical heating. means insulatingly surrounding l0 suitable material is supplied to any desired subsuch second-named, i. e., innertubular means, surface zone of the earth to form with the submeans mechanically' spacially interconnecting surface materials a solidied composite. The such outer and inner tubular means to thereby procedure of the stated patents involves usually enclose such electrical heating means within the the preliminary removal of water or moisture as annular space between the outer and inner tubuy:l5 well as the raising of the temperature of such lar means and providing a discharge opening for sub-surface materials. Such preliminary rethe inner tubular means, and means for intromoval of water or moisture may be accomplished ducing air, water or other suitable material withby my present invention by the employment of in the inner tubular means whereby such mateair or like m-edium preheated by my electrical rial is heated and renderedfluid for heat-treat- 20 heating means. ing the sub-surface material. The present invention is also applicable for ele- Such mechanical interconnecting means prefvating the temperature of sub-surface materials erably includes a foot member serving to sealby thermal radiation and/or by thermal conducingly connect, as by screw threading, the inner tion directly with the sub-surface materials, and outer tubular means, and providing a disand/or additionally by the flowof air or other charge opening for the inner tubular means. y suitable uid supplied under pressure through the Such sub-surface heating means is suitably arinterior of such inner tubular means, whereby ranged for insertion Within a suitable opening such heated fluid is delivered through the disinto the earth extending tothe Zone of the sub# charge opening of the inner tubular means. surface material to be treated, and preferably 30 Pursuant to my inventionset forth in my stated includes provision for forcibly driving the same U. S. Patent No. 2,232,898, sub-surfacewater or into the earth. Suitablel provision is made for moisture may be removed by suction through well sealing the electrical leads of such electrical heatf points disposed within and/or about the zone of ing means for connection With a suitable source the treated loose or other suitably sub-surface of electrical energy disposed at or adjacent the 35 material and sulfur in molten condition introearths surface, and arrangedfor affording produced within such zone for solidifying such untection of the electrical parts during the stage of stable sub-surface material. The invention of insertion ofthe sub-surface heating meansinto the stated patent includes Ialso the step of inthe earth. troducing steam, hot water or other heating mef My invention is applicable gen-erally for heat dium for effecting pre-heating of the unstable treating sub-surface materials by conveyance of sub-surface materials. heat energy through the instrumentality of the Pursuant t0 my Stated U. S Patent NO- 2,235,- air, water or other suitable material heated and 695, stabilization of loose sub-surface material rendered iiuid by the electricalrr heating means, K i is attained by the emDlOyment 0f Th1mt" OI pressure being applied to Such mai-,Grim whereby 45 other electrically detonatable composition .for the sub-surface material is dually heat'treated heating the Zone 0f sltlch Sub-surface material, and subjected to pressure conveyed through the concomitantly convertme Water or other moisheated pressure applied rrlai-,eri v r ture within such zone into steam, and withdraw- The invention is applicable for freeing oil wells y ing such generated Steam by 'suction through which are clogged by solidified paraffin 0r other "50 suitably located well points, and introducing molsolidified constituents of crude oil, clogged gas Wells, and the like, Applications of the invention reside also in the fields of heat treatment of subsurface materials Whereit is advantageous to introduce material into the geological structure ten sulfur into such zone, whereby to solidify the treated sub-surface material. My present invention is applicable in connection with Thermit by the employment of air or other suitable medium supplied under pressure through the inner tubu- 3 lar means and preheated by my electrical heating means for removing water or moisture and preheating the sub-surface material preliminarily to igniting the Thermit charge.

Further features and lobjects of the invention will be more fully understood from the following detailed description and the accompanying drawings, in which- Fig. l is a diagrammatic view partly in central vertical section and partly in vertical elevation of a preferred embodiment of the invention;

Fig. 2 is an enlarged central vertical sectional view of Fig. l;

Fig. 3 is a bottom end view of Fig. 2;

Fig. 4 is a detailed sectional view on line 4-4 of Fig. 2;

Fig. 5 is a diagrammatic elevational view of another embodiment of the invention; and

Fig. 6 is an enlarged central sectional elevation of the lower part of the embodiment shown in Fig. 5.

Referringr to the embodiment shown in Figs. 1 through 4, the heating means comprises an outer tubular means I shown formed of a series of seriatim connected individual tubes II suitably interconnected, as by sleeves I2 having screw threading, preferably of right-left opposing relation, mating with threading at the juxtaposed end portions of the tubes. Inner tubular means I3 is shown formed likewise of individual tubes I4 and similarly connected in seriatim by sleeves I5.

These inner and outer tubular means are associated substantially coaxially in annular relationship by the `provision of a foot member I5, suitably connecting the lower ends of the stated tubular means, as by screw-threaded connections indicated respectively at I1 and I8. The foot member I6 is provided with a through opening, indicated at I3a, t0 provide for the discharge of suitable fluid from the inner tubular means i3, for purposes set forth more fully hereinafter.

T0 afford the discharge of the heated fluid delivered through the inner tubular means, the threading thereof indicated at l'l of the foot member I6, is disposed at the wall of its through opening. To afford threaded connection as at I8, with the outer tubular means, the foot member I6 may be configurated of general frustoconical formation, and as shown, the threaded connection of the foot member I effected extericrly of the outer tubular means I9. Obvicusly the invention is not limited to the use of thread connections for making a substantially fluid-tight seal between the foot member I5 and the tubular members, as other known or convenient sealing means may be employed.

The electrical heating means, per se, is `desirably of a helically wound wire I9 of suitable electrical heating characteristics, and preferably self-insulated. Separate leads 2G and 2| are connected to the opposite ends of the helically wound wire I9 of the heating unit and lead to a suitable source of electricity. In this connection it is pointed out that good practice today requires that the tubes employed in oil wells shall not be used as electrical conductors because of the great danger of flash ignition of the oil or gas. As indicated in the drawings, the leads 29, 2l, of the electrical heating wiring passes through suitable openings 22, 23, of a suitable top closure member 24, serving to sealingly close the annular space between the upper ends of the outer tubular means Il] .and the inner tubular means I3. Desirably such top closure member 24 is formed of metal, and the leads 20, 2|, accordingly, may be provided with additional insulation, such as the indicated series of beads of vitreous material strung on the wiring. It will be observed that 5 the electrical heating means comprises a closed heating circuit independent of the tubular members I and I3.

Also, desirably, the outer wall of the inner tubular means may be provided with a helically arranged half-round molding 25, welded to such wall, serving as a guide for installing the electrical wiring helically about the outer wall oi the inner tubular means, and functioning also to support the electrical wiring and maintain the desired heating distribution.

It is advantageous to provide a nut-like member 26A for clamping the top closure member 24, which may be secured, as indicated, by threading mating with the threading 21 of the inlet pipingr 28.

The level of the earth is indicated in Fig'. l at 29. Any suitable source of electrical energy, not shown, may be employed for the supply of the electrical current to the electrical heating wiring I9, to attain the desired maximum temperature, and suitable control devices employed for regulating the temperature of the distributed heat energy.

The opening in the ground is indicated at 30. Preferably, such ground opening 39 is formed preliminary to inserting the sub-surface heating means therein.

Any suitable source (not shown) of compressed air or other pressure. fluid, may be employed. Economically and efficiently, air serves as ahighly satisfactory fluid, which is supplied under pressure through theinlet piping 2,8, the direction of ow therethrough` being indicated by the arrows 3l, whereby upon passage of such pressure supplied air through the interior of the inner tubular means I2, heatedl by the electrical wiring I9, the resulting heated air currents discharged through the opening 18a of the foot member I6, indicated 45 by. the arrows 32, now distributiveiy through me interstices of the sub-surface materials.

Accordingly, when it is desired to pre-heat any particular zone of sub-surface materials, heating is afforded ,by control from the earths surface 50 with respect to the range of elevation of temperature and selectively either by thermal radiation accompanied by thermal conduction directly within the zone of. sub-surface materials, and/ or additionally by the supply of heated air, which latter distributes through the interstices of the sub-surface material.

As indicatedfinfFig. 2,l the insulated conductors 20, 2I may be sealed against passage of air, water 50 or moisture or the like, within their respective openings` 22, 23, by suitablesealing material indicatedat 2 Ia and22a.

The embodiment shown inFigs. 5 and 6 follows generally that illustrated inV Figs. l through 4. 65 The embodiment of Figs. 5 and 6 isespecially applicable forV insertion Within a casing previously positioned in an opening in the earth. Pursuant to the preferred embodiment vshown in Figs. 5 and 6, .the housing 38 is dimensioned inlength of but 70 a minor fraction of the depth of the casing 35, to thereby localize theheat distributed within the zone 31, such as. the desired zone of the treated subfsurface material. Such housing may be secured tothe lower end of the iiuid supply piping 75 39; inwhich instancethecable dcontaining the leads of the electrical Wiring may extend within the casing 35, i. e., exteriorly of the supply pipin 39.

. ls shown in Fig. 6, the electrical wiring 4l may be wound helically about the exterior of the inner tubular meansv 42, connected to and communicating with the supply piping 39, as by a screw threaded connection indicated at 43 with vthe head part 44 of the housing 38. It is again noted that the connections which seal the housing 38 to rthev associated tube are not necessarily threaded connections. Other well known types of sealing .connection obviously maybe employed. The head part 44 is shown provided Vwith an opening 45 vthrough `which extends the electric cable 40, which opening may be sealingly closed by means of a plug 46.

The discharge end of the inner tubular means 42 is shown connected within the bottom opening 41 of the housing 38, the housing 38, in this instance performing the function of the outer tubular means Ill of the embodiment shown in Figs. 1 through 4. To facilitate installation of the component parts within the housing 38, it is advantageous to design the housing of two parts, as by arranging its head part 44 separable at the sealing joint 54a, as indicated in Fig. 6, tightened by the set-screws 5|.

Suitable means are provided for selectively locating the electrical heating means within the casing 36, as by means of a bail or yoke 48, having an eye 49, for suspending connection with a hook 50, of a suitable block and tackle, or equivalent.

The mode of operation of my improved heating means will be largely understood from the foregoing in connection with the teachings of said granted Letters Patent.

As one manner of operation of the instant invention coupled with the teachings of my said U. S. Patent No. 2,235,695, sub-surfaoe material may be preheated in advance of the introduction of molten sulfur or equivalent fluid by energizing the electrical resistance from a suitable source of electrical energy, under suitable control of current, accompanied as and when desired by the introduction through the inner hollow tube or equivalent member of air or the like, whereby water and other moisture present in the treated zone of sub-surface material is heated and dissipated and the temperature of the sub-surface material itself elevated, to thereby condition the same for treatment with the molten sulfur or equivalent, which is later applied through the inner hollow member.

It will thus be observed that my heating means serves not only to preheat the sub-surface materials within the zone desired to be treated but also maintains the desired fluidity of the sulfur or equivalent to the location of discharge of the treating material from the lower end opening of the inner hollow member. Control of the temperature of the treating material to render and maintain the same at optimum stage of fluidity is particularly advantageous with sulfur which possesses the peculiar property of being rendered iluid between limiting ranges of temperature.

It will be further observed that the suspension of my heating means by means of a block and tackle, or equivalent, enables my heating means to be positioned within the hole in the earth or within a casing in such hole to control the heating of the sub-surface material at the various stages Iof treatment, including the stages of preheating with or without association of heated air or like fluid and the stagewof fapplicationf of 'sul-L fur or equivalent stabilizing material.

Thermoplastics other than sulfur, suchy as furnace tars, low grade tars, etc., usually of low cost, may be employed as the stabilizing treating material. In the Vuse of such treating material of low oxidizing or combustion characteristics, heated air or the like may be discharged through my heating means succeeding the stage of introduction of such stabilizing treating material and/or intermediate stages of introduction of such stabilizing treating material, to thereby effect substantially uniform distribution of the stabilizing treating material and further dissipation of steam engendered during the stage or stages of the introduction of the heated stabilizing treat-A ing material.

My present invention is also applicable for the treatment of oil wells, gas wells and the like. A particular eld of application resides in that of freeing oil wells which are clogged by solidied constituents of crude oil, mostly paran compounds; in such application the selected fluid supplied under pressure through the inner tubular means is heated by my electrical heating means to appropriate temperature to render such clogging materials iluid, and also disperse the thus fluid rendered constituents through the surrounding zones of the treated sub-surface material. Such pressure supplied fluid may be steam, in which instance my heating means maintains the preferred temperature of such treating steam or may superheat such steam and thereby minimize the quantity of any condensed water and moisture.

Whereas the invention has been described by reference to specific forms thereof, it will be understood that many changes and modifications may be made provided they do not depart from the scope of the claims.

I claim:

1. Means for treating sub-surface materials comprising, in combination as a closed unit, an outer imperforate tubular member; an inner imperforate tubular member disposed substantially coaxialiy within said outer tubular member; electrical heating means disposed between said outer and inner members and insulated lead Wires extending to and separately connected to the opposite ends of said heating means, a unitary frustro-conical foot member having a through opening receiving the lower ends of said tubes, said inner member at its lower end having a threaded connection with the lower end of the foot member, and said outer tube having on its outer side and at its lower end a threaded connection with the large upper end of the foot member to substantially seal the space between the outer and inner tubes against fluid entry and afford communication between said inner tubular member and the through opening of said foot member.

2. Means for treating sub-surface materials, comprising, in combination as a closed unit, an outer imperforate tubular member; an inner imperforate tubular member disposed substantially coaxially within said outer tubular member; electrical heating means disposed between said outer and inner member and comprising electrical wiring supported in a helically arranged spacing groove formed on the outer surface of the inner tubular member and insulated lead wires extending to and separately connected to the opposite ends of said heating means, a unitary frustro-conical foot member having a through opening receiving the lower ends of said tubes, said inner member at its lower end having a threaded connection with the lower end oi the foot member, and said outer tube having on its outer side and at its lower end a threaded connection with the inner surface of the large upper end of the foot member to substantially seal the space between the outer and inner tubes against fluid entry and afford communication between said inner tubular member and the through opening of said foot member.

CHARLES S. ACKLEY.

REFERENCES CITED The following references are of record in the file of this patent:

Number Garrison May 6, 1941

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US972308 *Oct 26, 1908Oct 11, 1910James E WilliamsonElectric heater for oil-wells.
US1095365 *Oct 11, 1913May 5, 1914James E WilliamsonOil-well heater.
US1169262 *May 27, 1915Jan 25, 1916William Daniel HuffElectric heater.
US1232736 *Oct 5, 1916Jul 10, 1917Nat Oil Well Electric Cleaning CoOil-well heater.
US1235770 *Jul 3, 1917Aug 7, 1917George W DeatsApparatus for cleaning deep wells.
US1291302 *Mar 18, 1918Jan 14, 1919Oil Well Heating CompanyProcess and apparatus for stimulating the production of oil.
US1354757 *Feb 3, 1917Oct 5, 1920Frank C ReedApparatus for treating oil-wells
US1761227 *Jan 2, 1929Jun 3, 1930Pasley Woodson COil-well heater
US1763219 *Sep 11, 1926Jun 10, 1930Christians George WMethod and apparatus for sealing crevices in rock formations or the like
US1973541 *Feb 12, 1932Sep 11, 1934Proctor Olin SouthardDeep oil well pump
US2134610 *Apr 26, 1937Oct 25, 1938Hogg Coy COil-bearing sand heater
US2235695 *Apr 22, 1937Mar 18, 1941Ackley Charles SMethod of rendering earth materials solid
US2241253 *Jun 10, 1938May 6, 1941Texas CoMethod of treating oil wells
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2512226 *Jun 1, 1948Jun 20, 1950Alton Edwards JohnElectrical heating of oil wells
US2632836 *Nov 8, 1949Mar 24, 1953Thermactor CompanyOil well heater
US2722278 *May 11, 1954Nov 1, 1955Sinclair Oil & Gas CoApparatus
US2732195 *Jun 24, 1947Jan 24, 1956 Ljungstrom
US2757739 *Jan 7, 1952Aug 7, 1956Parelex CorpHeating apparatus
US2794504 *May 10, 1954Jun 4, 1957Union Oil CoWell heater
US4886118 *Feb 17, 1988Dec 12, 1989Shell Oil CompanyPyrolysis; enhanced oil recovery
US5120935 *Oct 1, 1990Jun 9, 1992Nenniger John EMethod and apparatus for oil well stimulation utilizing electrically heated solvents
US5247994 *Nov 6, 1992Sep 28, 1993Nenniger John EHeating to remove solid wax deposits
US5255742 *Jun 12, 1992Oct 26, 1993Shell Oil CompanyHeat injection process
US5297626 *Jun 12, 1992Mar 29, 1994Shell Oil CompanyOil recovery process
US5400430 *Jan 21, 1994Mar 21, 1995Nenniger; John E.Method for injection well stimulation
US6135359 *Dec 22, 1999Oct 24, 2000Wcm Industries, Inc.Heated yard hydrant
US6581684Apr 24, 2001Jun 24, 2003Shell Oil CompanyIn Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids
US6588504Apr 24, 2001Jul 8, 2003Shell Oil CompanyConversion of hydrocarbons to produce hydrocarbons, hydrogen, and/or novel product streams from underground coal formations; pyrolysis
US6591906Apr 24, 2001Jul 15, 2003Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected oxygen content
US6591907Apr 24, 2001Jul 15, 2003Shell Oil CompanyPyrolysis
US6607033Apr 24, 2001Aug 19, 2003Shell Oil CompanyIn Situ thermal processing of a coal formation to produce a condensate
US6609570Apr 24, 2001Aug 26, 2003Shell Oil CompanyIn situ thermal processing of a coal formation and ammonia production
US6688387Apr 24, 2001Feb 10, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate
US6698515Apr 24, 2001Mar 2, 2004Shell Oil CompanyIn situ thermal processing of a coal formation using a relatively slow heating rate
US6702016Apr 24, 2001Mar 9, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer
US6708758Apr 24, 2001Mar 23, 2004Shell Oil CompanyIn situ thermal processing of a coal formation leaving one or more selected unprocessed areas
US6712135Apr 24, 2001Mar 30, 2004Shell Oil CompanyIn situ thermal processing of a coal formation in reducing environment
US6712136Apr 24, 2001Mar 30, 2004Shell Oil CompanyProviding heat to the formation; controlling the heat from the heat source such that an average temperature within at least a majority of the selected section of the formation is less than about 375 degrees c.
US6712137Apr 24, 2001Mar 30, 2004Shell Oil CompanyHeat exchanging to superimpose heat
US6715546Apr 24, 2001Apr 6, 2004Shell Oil CompanyChemical and/or physical properties of hydrocarbon material within a subterranean formation may need to be changed to allow hydrocarbon material to be more easily removed
US6715547Apr 24, 2001Apr 6, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation
US6715548Apr 24, 2001Apr 6, 2004Shell Oil CompanyElectrical heaters may be used to heat the subterranean formation by radiation and/or conduction
US6715549Apr 24, 2001Apr 6, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio
US6719047Apr 24, 2001Apr 13, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment
US6722429Apr 24, 2001Apr 20, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas
US6722430Apr 24, 2001Apr 20, 2004Shell Oil CompanyIn situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio
US6722431Apr 24, 2001Apr 20, 2004Shell Oil CompanyIn situ thermal processing of hydrocarbons within a relatively permeable formation
US6725920Apr 24, 2001Apr 27, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products
US6725921Apr 24, 2001Apr 27, 2004Shell Oil CompanyIn situ thermal processing of a coal formation by controlling a pressure of the formation
US6725928Apr 24, 2001Apr 27, 2004Shell Oil CompanyIn situ thermal processing of a coal formation using a distributed combustor
US6729395Apr 24, 2001May 4, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells
US6729396Apr 24, 2001May 4, 2004Shell Oil CompanyIn situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range
US6729397Apr 24, 2001May 4, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance
US6729401Apr 24, 2001May 4, 2004Shell Oil CompanySynthesis gas may be produced from the formation. synthesis gas may be used as a feed stream in an ammonia synthesis process. ammonia may be used as a feed stream in a urea synthesis process.
US6732794Apr 24, 2001May 11, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
US6732795Apr 24, 2001May 11, 2004Shell Oil CompanyProviding heat from one or more heat sources to at least one portion of formation; allowing heat to transfer from the one or more heat sources to a selected section of the formation; controlling the heat; producing a mixture from the formation
US6732796Apr 24, 2001May 11, 2004Shell Oil CompanyHeating section of formation with heat sources to temperature allowing generation of synthesis gas, providing synthesis gas generating fluid to section, removing synthesis gas generated, repeating for second section, blending for desired ratio
US6736215Apr 24, 2001May 18, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration
US6739393Apr 24, 2001May 25, 2004Shell Oil CompanyIn situ thermal processing of a coal formation and tuning production
US6739394Apr 24, 2001May 25, 2004Shell Oil CompanyProviding heat and a synthesis gas generating fluid to the section to generate synthesis gas
US6742587Apr 24, 2001Jun 1, 2004Shell Oil CompanyIn situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation
US6742588Apr 24, 2001Jun 1, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content
US6742589Apr 24, 2001Jun 1, 2004Shell Oil CompanyIn situ thermal processing of a coal formation using repeating triangular patterns of heat sources
US6742593Apr 24, 2001Jun 1, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation
US6745831Apr 24, 2001Jun 8, 2004Shell Oil CompanyMixture of hydrocarbons, h2, and/or other formation fluids may be produced from the formation. heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature.
US6745832Apr 24, 2001Jun 8, 2004Shell Oil CompanySitu thermal processing of a hydrocarbon containing formation to control product composition
US6745837Apr 24, 2001Jun 8, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using a controlled heating rate
US6749021Apr 24, 2001Jun 15, 2004Shell Oil CompanyPyrolysis
US6752210Apr 24, 2001Jun 22, 2004Shell Oil CompanyIn situ thermal processing of a coal formation using heat sources positioned within open wellbores
US6758268Apr 24, 2001Jul 6, 2004Shell Oil CompanyHeat exchanging, pyrolysis; monitoring temperature
US6761216Apr 24, 2001Jul 13, 2004Shell Oil CompanyPyrolysis temperature
US6763886Apr 24, 2001Jul 20, 2004Shell Oil CompanyIn situ thermal processing of a coal formation with carbon dioxide sequestration
US6769483Apr 24, 2001Aug 3, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources
US6769485Apr 24, 2001Aug 3, 2004Shell Oil CompanyIn situ production of synthesis gas from a coal formation through a heat source wellbore
US6789625Apr 24, 2001Sep 14, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources
US6805195Apr 24, 2001Oct 19, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas
US6820688Apr 24, 2001Nov 23, 2004Shell Oil CompanyHeat exchanging after pyrolyzation to support synthesis gas generation
US6866097Apr 24, 2001Mar 15, 2005Shell Oil CompanySuperpositioning of heaters for pyrolysis to form mixture of hydrocarbons and hydrogen; controlling pressure; heat exchanging
US6871707Apr 24, 2001Mar 29, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with carbon dioxide sequestration
US6877554Apr 24, 2001Apr 12, 2005Shell Oil CompanyPyrolysis
US6877555Apr 24, 2002Apr 12, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation while inhibiting coking
US6880633Apr 24, 2002Apr 19, 2005Shell Oil CompanyIncludes shutting-in an in situ treatment process in an oil shale formation may include terminating heating from heat sources providing heat to a portion of the formation; hydrocarbon vapor may be produced
US6880635Apr 24, 2001Apr 19, 2005Shell Oil CompanyMethods and systems for production of hydrocarbons, hydrogen, and/or other products from underground coal formations
US6889769Apr 24, 2001May 10, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected moisture content
US6896053Apr 24, 2001May 24, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources
US6902003Apr 24, 2001Jun 7, 2005Shell Oil CompanyAllowing heat to transfer from heaters to a formation selected for heating using a total organic matter weight percentage of > 5% and recirculating hydrogen
US6902004Apr 24, 2001Jun 7, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using a movable heating element
US6910536Apr 24, 2001Jun 28, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US6913078Apr 24, 2001Jul 5, 2005Shell Oil CompanyIn Situ thermal processing of hydrocarbons within a relatively impermeable formation
US6915850Apr 24, 2002Jul 12, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation having permeable and impermeable sections
US6918442Apr 24, 2002Jul 19, 2005Shell Oil CompanyIn situ conversion of hydrocarbons to produce hydrocarbons, hydrogen, and/or novel product streams from underground oil shale formations
US6918443Apr 24, 2002Jul 19, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range
US6923257Apr 24, 2002Aug 2, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation to produce a condensate
US6923258Jun 12, 2003Aug 2, 2005Shell Oil CompanyIn situ thermal processsing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
US6929067Apr 24, 2002Aug 16, 2005Shell Oil CompanyHeat sources with conductive material for in situ thermal processing of an oil shale formation
US6932155Oct 24, 2002Aug 23, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
US6948562Apr 24, 2002Sep 27, 2005Shell Oil CompanyProduction of a blending agent using an in situ thermal process in a relatively permeable formation
US6948563Apr 24, 2001Sep 27, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content
US6951247Apr 24, 2002Oct 4, 2005Shell Oil CompanyControl the heat exchanging, pyrolyzing hydrocarbons, enhancing oil recovery
US6953087Apr 24, 2001Oct 11, 2005Shell Oil CompanyThermal processing of a hydrocarbon containing formation to increase a permeability of the formation
US6959761Apr 24, 2001Nov 1, 2005Shell Oil CompanyIn situ thermal processing of a coal formation with a selected ratio of heat sources to production wells
US6964300Apr 24, 2002Nov 15, 2005Shell Oil CompanyIn situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US6966372Apr 24, 2001Nov 22, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids
US6966374Apr 24, 2002Nov 22, 2005Shell Oil CompanyIn situ thermal recovery from a relatively permeable formation using gas to increase mobility
US6969123Oct 24, 2002Nov 29, 2005Shell Oil CompanyUpgrading and mining of coal
US6973967Apr 24, 2001Dec 13, 2005Shell Oil Companyhydrocarbons within a coal formation are converted in situ within the formation to yield a mixture of relatively high quality hydrocarbon products, hydrogen, and other products; the coal is heated to to temperatures that allow pyrolysis
US6981548Apr 24, 2002Jan 3, 2006Shell Oil Companyheating and pyrolysis of heavy hydrocarbon sections in subterranean wells to produce light hydrocarbons; reduced viscosity improves movement; fluid removal in liquid and/or vapor phase
US6991031Apr 24, 2001Jan 31, 2006Shell Oil CompanyIn situ thermal processing of a coal formation to convert a selected total organic carbon content into hydrocarbon products
US6991032Apr 24, 2002Jan 31, 2006Shell Oil CompanyHeat sources positioned within the formation in a selected pattern raise a temperature of a portion of the formation to a pyrolysis temperature.
US6991033Apr 24, 2002Jan 31, 2006Shell Oil CompanyIn situ thermal processing while controlling pressure in an oil shale formation
US6991036Apr 24, 2002Jan 31, 2006Shell Oil CompanyThermal processing of a relatively permeable formation
US6991045Oct 24, 2002Jan 31, 2006Shell Oil CompanyForming openings in a hydrocarbon containing formation using magnetic tracking
US6994160Apr 24, 2001Feb 7, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range
US6994161Apr 24, 2001Feb 7, 2006Kevin Albert MaherIn situ thermal processing of a coal formation with a selected moisture content
US6994168Apr 24, 2001Feb 7, 2006Scott Lee WellingtonIn situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio
US6997255Apr 24, 2001Feb 14, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation in a reducing environment
US6997518Apr 24, 2002Feb 14, 2006Shell Oil CompanyIn situ thermal processing and solution mining of an oil shale formation
US7004247Apr 24, 2002Feb 28, 2006Shell Oil CompanyConductor-in-conduit heat sources for in situ thermal processing of an oil shale formation
US7004251Apr 24, 2002Feb 28, 2006Shell Oil CompanyIn situ thermal processing and remediation of an oil shale formation
US7011154Oct 24, 2002Mar 14, 2006Shell Oil CompanyIn situ recovery from a kerogen and liquid hydrocarbon containing formation
US7013972Apr 24, 2002Mar 21, 2006Shell Oil CompanyIn situ thermal processing of an oil shale formation using a natural distributed combustor
US7017661Apr 24, 2001Mar 28, 2006Shell Oil CompanyProduction of synthesis gas from a coal formation
US7032660Apr 24, 2002Apr 25, 2006Shell Oil CompanyIn situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US7036583Sep 24, 2001May 2, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation
US7040397Apr 24, 2002May 9, 2006Shell Oil CompanyThermal processing of an oil shale formation to increase permeability of the formation
US7040398Apr 24, 2002May 9, 2006Shell Oil CompanyIn situ thermal processing of a relatively permeable formation in a reducing environment
US7040399Apr 24, 2002May 9, 2006Shell Oil CompanyIn situ thermal processing of an oil shale formation using a controlled heating rate
US7040400Apr 24, 2002May 9, 2006Shell Oil CompanyIn situ thermal processing of a relatively impermeable formation using an open wellbore
US7051807Apr 24, 2002May 30, 2006Shell Oil CompanyIn situ thermal recovery from a relatively permeable formation with quality control
US7051808Oct 24, 2002May 30, 2006Shell Oil CompanySeismic monitoring of in situ conversion in a hydrocarbon containing formation
US7051811Apr 24, 2002May 30, 2006Shell Oil CompanyIn situ thermal processing through an open wellbore in an oil shale formation
US7055600Apr 24, 2002Jun 6, 2006Shell Oil CompanyIn situ thermal recovery from a relatively permeable formation with controlled production rate
US7063145Oct 24, 2002Jun 20, 2006Shell Oil CompanyMethods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations
US7066254Oct 24, 2002Jun 27, 2006Shell Oil CompanyIn situ thermal processing of a tar sands formation
US7066257Oct 24, 2002Jun 27, 2006Shell Oil CompanyIn situ recovery from lean and rich zones in a hydrocarbon containing formation
US7073578Oct 24, 2003Jul 11, 2006Shell Oil CompanyStaged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation
US7077198 *Oct 24, 2002Jul 18, 2006Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation using barriers
US7077199Oct 24, 2002Jul 18, 2006Shell Oil CompanyIn situ thermal processing of an oil reservoir formation
US7086465Oct 24, 2002Aug 8, 2006Shell Oil CompanyIn situ production of a blending agent from a hydrocarbon containing formation
US7086468Apr 24, 2001Aug 8, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores
US7090013Oct 24, 2002Aug 15, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US7096941Apr 24, 2001Aug 29, 2006Shell Oil CompanyIn situ thermal processing of a coal formation with heat sources located at an edge of a coal layer
US7096942Apr 24, 2002Aug 29, 2006Shell Oil CompanyIn situ thermal processing of a relatively permeable formation while controlling pressure
US7096953Apr 24, 2001Aug 29, 2006Shell Oil CompanyIn situ thermal processing of a coal formation using a movable heating element
US7100994Oct 24, 2002Sep 5, 2006Shell Oil Companyinjecting a heated fluid into the well bore, producing a second fluid from the formation, conducting an in situ conversion process in the selected section.
US7104319Oct 24, 2002Sep 12, 2006Shell Oil CompanyIn situ thermal processing of a heavy oil diatomite formation
US7114566Oct 24, 2002Oct 3, 2006Shell Oil CompanyHeat treatment using natural distributed combustor; oxidation of hydrocarbons to generate heat; pyrolysis
US7121341Oct 24, 2003Oct 17, 2006Shell Oil CompanyConductor-in-conduit temperature limited heaters
US7121342Apr 23, 2004Oct 17, 2006Shell Oil CompanyThermal processes for subsurface formations
US7128153Oct 24, 2002Oct 31, 2006Shell Oil CompanyTreatment of a hydrocarbon containing formation after heating
US7156176Oct 24, 2002Jan 2, 2007Shell Oil CompanyInstallation and use of removable heaters in a hydrocarbon containing formation
US7165615Oct 24, 2002Jan 23, 2007Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US7219734Oct 24, 2003May 22, 2007Shell Oil CompanyInhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation
US7225866Jan 31, 2006Jun 5, 2007Shell Oil CompanyIn situ thermal processing of an oil shale formation using a pattern of heat sources
US7300228 *Nov 15, 2004Nov 27, 2007Robert ColbertMethod and apparatus for preventing dock or structure piling uplift
US7320364Apr 22, 2005Jan 22, 2008Shell Oil CompanyInhibiting reflux in a heated well of an in situ conversion system
US7353872Apr 22, 2005Apr 8, 2008Shell Oil CompanyStart-up of temperature limited heaters using direct current (DC)
US7357180Apr 22, 2005Apr 15, 2008Shell Oil CompanyInhibiting effects of sloughing in wellbores
US7360588Oct 17, 2006Apr 22, 2008Shell Oil CompanyThermal processes for subsurface formations
US7370704Apr 22, 2005May 13, 2008Shell Oil CompanyTriaxial temperature limited heater
US7383877Apr 22, 2005Jun 10, 2008Shell Oil CompanyTemperature limited heaters with thermally conductive fluid used to heat subsurface formations
US7424915Apr 22, 2005Sep 16, 2008Shell Oil CompanyVacuum pumping of conductor-in-conduit heaters
US7431076Apr 22, 2005Oct 7, 2008Shell Oil CompanyTemperature limited heaters using modulated DC power
US7435037Apr 21, 2006Oct 14, 2008Shell Oil CompanyLow temperature barriers with heat interceptor wells for in situ processes
US7461691Jan 23, 2007Dec 9, 2008Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US7481274Apr 22, 2005Jan 27, 2009Shell Oil CompanyTemperature limited heaters with relatively constant current
US7490665Apr 22, 2005Feb 17, 2009Shell Oil CompanyVariable frequency temperature limited heaters
US7500528Apr 21, 2006Mar 10, 2009Shell Oil CompanyLow temperature barrier wellbores formed using water flushing
US7510000Apr 22, 2005Mar 31, 2009Shell Oil CompanyReducing viscosity of oil for production from a hydrocarbon containing formation
US7527094Apr 21, 2006May 5, 2009Shell Oil CompanyDouble barrier system for an in situ conversion process
US7533719Apr 20, 2007May 19, 2009Shell Oil CompanyWellhead with non-ferromagnetic materials
US7540324Oct 19, 2007Jun 2, 2009Shell Oil CompanyHeating hydrocarbon containing formations in a checkerboard pattern staged process
US7546873Apr 21, 2006Jun 16, 2009Shell Oil CompanyLow temperature barriers for use with in situ processes
US7549470Oct 20, 2006Jun 23, 2009Shell Oil CompanySolution mining and heating by oxidation for treating hydrocarbon containing formations
US7556095Oct 20, 2006Jul 7, 2009Shell Oil CompanySolution mining dawsonite from hydrocarbon containing formations with a chelating agent
US7556096Oct 20, 2006Jul 7, 2009Shell Oil CompanyVarying heating in dawsonite zones in hydrocarbon containing formations
US7559367Oct 20, 2006Jul 14, 2009Shell Oil CompanyTemperature limited heater with a conduit substantially electrically isolated from the formation
US7559368Oct 20, 2006Jul 14, 2009Shell Oil CompanySolution mining systems and methods for treating hydrocarbon containing formations
US7562706Oct 20, 2006Jul 21, 2009Shell Oil CompanySystems and methods for producing hydrocarbons from tar sands formations
US7562707Oct 19, 2007Jul 21, 2009Shell Oil CompanyHeating hydrocarbon containing formations in a line drive staged process
US7575052Apr 21, 2006Aug 18, 2009Shell Oil CompanyIn situ conversion process utilizing a closed loop heating system
US7575053Apr 21, 2006Aug 18, 2009Shell Oil CompanyLow temperature monitoring system for subsurface barriers
US7581589Oct 20, 2006Sep 1, 2009Shell Oil CompanyMethods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US7584789Oct 20, 2006Sep 8, 2009Shell Oil CompanyMethods of cracking a crude product to produce additional crude products
US7591310Oct 20, 2006Sep 22, 2009Shell Oil CompanyMethods of hydrotreating a liquid stream to remove clogging compounds
US7597147Apr 20, 2007Oct 6, 2009Shell Oil CompanyTemperature limited heaters using phase transformation of ferromagnetic material
US7604052Apr 20, 2007Oct 20, 2009Shell Oil CompanyCompositions produced using an in situ heat treatment process
US7610962Apr 20, 2007Nov 3, 2009Shell Oil CompanyProviding acidic gas to a subterrean formation, such as oil shale, by heating from an electrical heater and injecting through an oil wellbore; one of the acidic acids includes hydrogen sulfide and is introduced at a pressure below the lithostatic pressure of the formation to produce fluids; efficiency
US7631689Apr 20, 2007Dec 15, 2009Shell Oil CompanySulfur barrier for use with in situ processes for treating formations
US7631690Oct 19, 2007Dec 15, 2009Shell Oil CompanyHeating hydrocarbon containing formations in a spiral startup staged sequence
US7635023Apr 20, 2007Dec 22, 2009Shell Oil CompanyTime sequenced heating of multiple layers in a hydrocarbon containing formation
US7635024Oct 19, 2007Dec 22, 2009Shell Oil CompanyHeating tar sands formations to visbreaking temperatures
US7635025Oct 20, 2006Dec 22, 2009Shell Oil CompanyCogeneration systems and processes for treating hydrocarbon containing formations
US7635238 *May 10, 2004Dec 22, 2009Piling Anti-Lift SystemsDevice for preventing dock piling or structure piling uplift
US7640980Apr 7, 2008Jan 5, 2010Shell Oil CompanyThermal processes for subsurface formations
US7644765Oct 19, 2007Jan 12, 2010Shell Oil CompanyHeating tar sands formations while controlling pressure
US7673681Oct 19, 2007Mar 9, 2010Shell Oil CompanyTreating tar sands formations with karsted zones
US7673786Apr 20, 2007Mar 9, 2010Shell Oil CompanyWelding shield for coupling heaters
US7677310Oct 19, 2007Mar 16, 2010Shell Oil CompanyCreating and maintaining a gas cap in tar sands formations
US7677314Oct 19, 2007Mar 16, 2010Shell Oil CompanyMethod of condensing vaporized water in situ to treat tar sands formations
US7681647Oct 19, 2007Mar 23, 2010Shell Oil CompanyMethod of producing drive fluid in situ in tar sands formations
US7683296Apr 20, 2007Mar 23, 2010Shell Oil CompanyAdjusting alloy compositions for selected properties in temperature limited heaters
US7703513Oct 19, 2007Apr 27, 2010Shell Oil CompanyWax barrier for use with in situ processes for treating formations
US7717171Oct 19, 2007May 18, 2010Shell Oil CompanyMoving hydrocarbons through portions of tar sands formations with a fluid
US7730901Aug 9, 2007Jun 8, 2010Wcm Industries, Inc.Hydrant roof mount
US7730945Oct 19, 2007Jun 8, 2010Shell Oil CompanyUsing geothermal energy to heat a portion of a formation for an in situ heat treatment process
US7730946Oct 19, 2007Jun 8, 2010Shell Oil CompanyTreating tar sands formations with dolomite
US7730947Oct 19, 2007Jun 8, 2010Shell Oil CompanyCreating fluid injectivity in tar sands formations
US7735935Jun 1, 2007Jun 15, 2010Shell Oil CompanyIn situ thermal processing of an oil shale formation containing carbonate minerals
US7785427Apr 20, 2007Aug 31, 2010Shell Oil CompanyChromium, nickel, copper; niobium, iron manganese, nitrogen; nanonitrides; system for heating a subterranean formation;
US7793722Apr 20, 2007Sep 14, 2010Shell Oil CompanyNon-ferromagnetic overburden casing
US7798220Apr 18, 2008Sep 21, 2010Shell Oil CompanyIn situ heat treatment of a tar sands formation after drive process treatment
US7798221May 31, 2007Sep 21, 2010Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US7831133Apr 21, 2006Nov 9, 2010Shell Oil CompanyInsulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration
US7831134Apr 21, 2006Nov 9, 2010Shell Oil CompanyGrouped exposed metal heaters
US7832484Apr 18, 2008Nov 16, 2010Shell Oil CompanyMolten salt as a heat transfer fluid for heating a subsurface formation
US7841401Oct 19, 2007Nov 30, 2010Shell Oil CompanyGas injection to inhibit migration during an in situ heat treatment process
US7841408Apr 18, 2008Nov 30, 2010Shell Oil CompanyIn situ heat treatment from multiple layers of a tar sands formation
US7841425Apr 18, 2008Nov 30, 2010Shell Oil CompanyDrilling subsurface wellbores with cutting structures
US7845411Oct 19, 2007Dec 7, 2010Shell Oil CompanyIn situ heat treatment process utilizing a closed loop heating system
US7849922Apr 18, 2008Dec 14, 2010Shell Oil CompanyIn situ recovery from residually heated sections in a hydrocarbon containing formation
US7860377Apr 21, 2006Dec 28, 2010Shell Oil CompanySubsurface connection methods for subsurface heaters
US7866385Apr 20, 2007Jan 11, 2011Shell Oil CompanyPower systems utilizing the heat of produced formation fluid
US7866386Oct 13, 2008Jan 11, 2011Shell Oil Companyproduction of hydrocarbons, hydrogen, and/or other products from various subsurface formations such as hydrocarbon containing formations through use of oxidizing fluids and heat
US7866388Oct 13, 2008Jan 11, 2011Shell Oil CompanyHigh temperature methods for forming oxidizer fuel
US7912358Apr 20, 2007Mar 22, 2011Shell Oil CompanyAlternate energy source usage for in situ heat treatment processes
US7931086Apr 18, 2008Apr 26, 2011Shell Oil CompanyHeating systems for heating subsurface formations
US7942197Apr 21, 2006May 17, 2011Shell Oil CompanyMethods and systems for producing fluid from an in situ conversion process
US7942203Jan 4, 2010May 17, 2011Shell Oil CompanyThermal processes for subsurface formations
US7950453Apr 18, 2008May 31, 2011Shell Oil CompanyDownhole burner systems and methods for heating subsurface formations
US7986869Apr 21, 2006Jul 26, 2011Shell Oil CompanyVarying properties along lengths of temperature limited heaters
US8011451Oct 13, 2008Sep 6, 2011Shell Oil CompanyRanging methods for developing wellbores in subsurface formations
US8027571Apr 21, 2006Sep 27, 2011Shell Oil CompanyIn situ conversion process systems utilizing wellbores in at least two regions of a formation
US8042610Apr 18, 2008Oct 25, 2011Shell Oil CompanyParallel heater system for subsurface formations
US8070840Apr 21, 2006Dec 6, 2011Shell Oil CompanyTreatment of gas from an in situ conversion process
US8083813Apr 20, 2007Dec 27, 2011Shell Oil CompanyMethods of producing transportation fuel
US8113272Oct 13, 2008Feb 14, 2012Shell Oil CompanyThree-phase heaters with common overburden sections for heating subsurface formations
US8122951 *Feb 3, 2006Feb 28, 2012Schlumberger Technology CorporationSystems and methods of downhole thermal property measurement
US8146661Oct 13, 2008Apr 3, 2012Shell Oil CompanyCryogenic treatment of gas
US8146669Oct 13, 2008Apr 3, 2012Shell Oil CompanyMulti-step heater deployment in a subsurface formation
US8151880Dec 9, 2010Apr 10, 2012Shell Oil CompanyMethods of making transportation fuel
US8151907Apr 10, 2009Apr 10, 2012Shell Oil CompanyDual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US8162059Oct 13, 2008Apr 24, 2012Shell Oil CompanyInduction heaters used to heat subsurface formations
US8162405Apr 10, 2009Apr 24, 2012Shell Oil CompanyUsing tunnels for treating subsurface hydrocarbon containing formations
US8172335Apr 10, 2009May 8, 2012Shell Oil CompanyElectrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations
US8177305Apr 10, 2009May 15, 2012Shell Oil CompanyHeater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8191630Apr 28, 2010Jun 5, 2012Shell Oil CompanyCreating fluid injectivity in tar sands formations
US8192682Apr 26, 2010Jun 5, 2012Shell Oil CompanyHigh strength alloys
US8196658Oct 13, 2008Jun 12, 2012Shell Oil CompanyIrregular spacing of heat sources for treating hydrocarbon containing formations
US8220539Oct 9, 2009Jul 17, 2012Shell Oil CompanyControlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation
US8224163Oct 24, 2003Jul 17, 2012Shell Oil CompanyVariable frequency temperature limited heaters
US8224164Oct 24, 2003Jul 17, 2012Shell Oil CompanyInsulated conductor temperature limited heaters
US8224165Apr 21, 2006Jul 17, 2012Shell Oil CompanyTemperature limited heater utilizing non-ferromagnetic conductor
US8225866Jul 21, 2010Jul 24, 2012Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US8230927May 16, 2011Jul 31, 2012Shell Oil CompanyMethods and systems for producing fluid from an in situ conversion process
US8233782Sep 29, 2010Jul 31, 2012Shell Oil CompanyGrouped exposed metal heaters
US8238730Oct 24, 2003Aug 7, 2012Shell Oil CompanyHigh voltage temperature limited heaters
US8240774Oct 13, 2008Aug 14, 2012Shell Oil CompanySolution mining and in situ treatment of nahcolite beds
US8256512Oct 9, 2009Sep 4, 2012Shell Oil CompanyMovable heaters for treating subsurface hydrocarbon containing formations
US8261832Oct 9, 2009Sep 11, 2012Shell Oil CompanyHeating subsurface formations with fluids
US8267170Oct 9, 2009Sep 18, 2012Shell Oil CompanyOffset barrier wells in subsurface formations
US8267185Oct 9, 2009Sep 18, 2012Shell Oil CompanyCirculated heated transfer fluid systems used to treat a subsurface formation
US8272455Oct 13, 2008Sep 25, 2012Shell Oil CompanyMethods for forming wellbores in heated formations
US8276661Oct 13, 2008Oct 2, 2012Shell Oil CompanyHeating subsurface formations by oxidizing fuel on a fuel carrier
US8281861Oct 9, 2009Oct 9, 2012Shell Oil CompanyCirculated heated transfer fluid heating of subsurface hydrocarbon formations
US8327681Apr 18, 2008Dec 11, 2012Shell Oil CompanyWellbore manufacturing processes for in situ heat treatment processes
US8327932Apr 9, 2010Dec 11, 2012Shell Oil CompanyRecovering energy from a subsurface formation
US8353347Oct 9, 2009Jan 15, 2013Shell Oil CompanyDeployment of insulated conductors for treating subsurface formations
US8355623Apr 22, 2005Jan 15, 2013Shell Oil CompanyTemperature limited heaters with high power factors
US8381815Apr 18, 2008Feb 26, 2013Shell Oil CompanyProduction from multiple zones of a tar sands formation
US8434555Apr 9, 2010May 7, 2013Shell Oil CompanyIrregular pattern treatment of a subsurface formation
US8448707Apr 9, 2010May 28, 2013Shell Oil CompanyNon-conducting heater casings
US8459359Apr 18, 2008Jun 11, 2013Shell Oil CompanyTreating nahcolite containing formations and saline zones
US8474476Mar 15, 2011Jul 2, 2013Wcm Industries, Inc.Sanitary hydrant
US8485252Jul 11, 2012Jul 16, 2013Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US8536497Oct 13, 2008Sep 17, 2013Shell Oil CompanyMethods for forming long subsurface heaters
US8555971May 31, 2012Oct 15, 2013Shell Oil CompanyTreating tar sands formations with dolomite
US8562078Nov 25, 2009Oct 22, 2013Shell Oil CompanyHydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US8579031May 17, 2011Nov 12, 2013Shell Oil CompanyThermal processes for subsurface formations
US8606091Oct 20, 2006Dec 10, 2013Shell Oil CompanySubsurface heaters with low sulfidation rates
US8627887Dec 8, 2008Jan 14, 2014Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US8631866Apr 8, 2011Jan 21, 2014Shell Oil CompanyLeak detection in circulated fluid systems for heating subsurface formations
US8636323Nov 25, 2009Jan 28, 2014Shell Oil CompanyMines and tunnels for use in treating subsurface hydrocarbon containing formations
US8662175Apr 18, 2008Mar 4, 2014Shell Oil CompanyVarying properties of in situ heat treatment of a tar sands formation based on assessed viscosities
US8701768Apr 8, 2011Apr 22, 2014Shell Oil CompanyMethods for treating hydrocarbon formations
US8701769Apr 8, 2011Apr 22, 2014Shell Oil CompanyMethods for treating hydrocarbon formations based on geology
US8739874Apr 8, 2011Jun 3, 2014Shell Oil CompanyMethods for heating with slots in hydrocarbon formations
US8752904Apr 10, 2009Jun 17, 2014Shell Oil CompanyHeated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations
US20100258291 *Apr 9, 2010Oct 14, 2010Everett De St Remey EdwardHeated liners for treating subsurface hydrocarbon containing formations
USRE35696 *Sep 28, 1995Dec 23, 1997Shell Oil CompanyHeat injection process
WO2005111320A2 *May 5, 2005Nov 24, 2005Robert ColbertMethod and structure for preventing piling uplift
Classifications
U.S. Classification392/304, 166/60, 392/480, 392/305
International ClassificationE21B36/04, E21B36/00
Cooperative ClassificationE21B36/04
European ClassificationE21B36/04