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Publication numberUS3165154 A
Publication typeGrant
Publication dateJan 12, 1965
Filing dateMar 23, 1962
Priority dateMar 23, 1962
Publication numberUS 3165154 A, US 3165154A, US-A-3165154, US3165154 A, US3165154A
InventorsMelcon Santourian
Original AssigneePhillips Petroleum Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Oil recovery by in situ combustion
US 3165154 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Jam 12, 1965 M. sANToURlAN 3,165,154

OIL RECOVERY BY IN SITU COMBUSTION Filed March 23. 1962 INVENTOR. M ELCON SANTOURI A N B77 QW 3,165,154 OIL RECVERY BY EN STFU QMEUSTIN Melcon Santourian, Bartlesville, Ghia., assigner to Phillips Petroleum Company, a corporation of Delaware Fiied Mar. 23, 1962, Ser. No. 182,'1i3

, iii Claims. (Ci. 16d-11) This invention relates to a process for recovering oil Yby in situ combustion from a permeable stratum containing hydrocarbons.

The recovery of oil by in situ combustion involves establishing a combustion zone within a carbonaceous stratum around an ignition well and moving the combustion zone thru the stratum to one or more offset wells either by direct injection of combustion-supporting gas, such as air, thru the ingnition well or thru the offset Well (or wells) so as to move the combustion zone inversely to the flow of said gas. The former technique is considered a direct drive process while the latter is usually designated an inverse drive process. It is, of course, desirable to ignite the stratum. throughout its entire thickness around the ignition well in order to produce as much stratum as possible on a given burnthru. However, it is difficult to ignite an oil-bearing stratum over the entire -to provide an improved process or technique for producing thick oil-bearing strata. Another object is to com- .bine a vertical drive inLsitu combustion process with a Yhorizontal drive processso as toproduce the entirethickness of the stratum being produced. A further object is -to provide an improved technique for igniting a permeable carbonaceous stratum around an ignition well thru- `out the thickness of the stratum. Other objectsoflhe invention Willbecorne Aapparent to one skilled in the art uplon consideration of the. accompanying disclosure. Y

A broad aspect of the invention comprises establishing ari-annular combustion zone around an ignition Well withi United StatesY Patent() v--ing' at higher and lower levels therein.

liild yPatented Jan. 12, 1955 ice panded by inverse drive with production thru the annulus of the well.

After combustion has been established in an annulus around the ignition well in the aforesaid manner, air is injected into the combustion Zone or thru the ignition well so as to advance the combustion zone toward the offset well or wells by direct' drive, or air is injected thru the offset well or wells so as to advance the annular combustion zone toward the injection Well or wells by inverse drive.

A more complete understanding of the invention may be had by reference to the accompanying drawing in which FlGURE l is an elevation in partial section thru an ignition'well and an offset well in a carbonaceous stratum illustrating one embodiment of the invention and FIG- URE 2 is a fragmentary elevation in partial section of another arrangement of apparatus in an ignition Well for effecting the invention.l

Referring to FIGURE 1, a carbonaceous stratum or oil sand it) is penetrated by an yignition well l2 and an offset well M. Well l2 is provided with casing 16 and tubing 1S extending from a lower level of the stratum thru the well head. A packer 20 is set ony tubing 18 at an intermediate level in stratum iii.

Well. 14 is provided with a casing 22 and a tubing Vat a lower level therein. In this arrangement there is an upper sectionfi) of stratum above packer 26 exposed' to the well and a lower section 32 Vbelowpacker k28 exposed to the well.

y It is Valso feasible to entend casirigs 16 and 22`rtliru stratum it?, providing perforations` are made in-the cas- However, due to the probabllrty of overheating and fusing yof the casing,

Ait is .preferred toA terminate thecasingtadjacent lthe top in an oil-hearing stratum which vextends from the top lto the-bottom of the stratum, by igniting the stratum adja- Vcent one end section ofthe annular zone and passing corn-l bustion-supporting gas vertically therethru so as to eX- .pand the combustion zone to the opposite end section of the anulus and, thereafter, passing combustion-supporting gas radially into the annular combution zone so as to -advance the same radially outwardly toward one or more Y offset wells in the Stratum. The anular combustion zone around the ignition well may be established by either Vdirect or inverse drive by inserting tubing inthe Well, po-

sitioning one or more packers on the tubing within the stratum, and feeding air or other combustion-supporting gas either thru the annulus and producing thru the tubing, v -or vice versa. The ignition may be leffected either inan ,upper section of the stratum above thepacker or packers or in a section of the stratumbelow the packer `or '..pacl-:ers. By igniting an upper section of the stratum and feeding air thru the well anulus, the Acombustion zone is Vexpanded by direct drive to the lower section of the stratum. .By igniting the upper section of the stratum I and injecting thru the tubing, the combustion Zone is ex- Y of the formation.

In operating with the arrangement illustrated in FIG- -URIE 1,.tl1`e.section of stratum 14E-.above packer Zi'is yignited lby means of a'charcoal pack l'which is ignitedby `dropping arailroad fusee` or other ignition' deviceon the charcoal and either Vpassing Vair or vother combustionlsupporting gas thruk tubi'ngjllS to establish an inverse ver'tical drive of the combustion 'zone yalongthe well. wall or thru line 19 and the -well an'nulus so as to drive the corn- 4.bustionzone by directy drive to, the lower section of the .stratum below packer 20. When Vair is injected thruthe annulus, Aproduced gasesare vented. thru tubing 18 and passed to separation and recovery apparatus (not shown). i .When air-'isinjected thru the tubing 18produced gases are passed thru line 19 to'recovery means..-

It `is alsojfeasib'le Vto place a charcoalor othersolid fuel. packin the bottom of well 12 Vbeforeyplacker 29 is positioned andhen-ignitinfg -the bottom of the fuel pack by dropping a fus'ee or other ignitordown the tubing string and either injecting vair thru the tubing string or thru' `line` 19 soy as to bur-n the fuel pack, ignite the adjacent stratum below. paclrerii, and drive the resulting combustion zone, around pacl erV29y into the upper section of the stratum.

A preferred arrangement of packers is illustrated in FIGURE 2. By igniting the stratum either above packer 26 or below packer 28 in the manner described above, and passing air either thru the annulus or thru ,the tubing, the ignited area is expanded from section 3G to section 32 or vice versa, depending upon where the ignition is initiated. This arrangement is more effective in extending the combustion zone in the stratum from the uppermost to the lowerrnost area thereof around well 12. The arrangement of FIGURE 2 is preferred when producing thick strata.

After establishing an annular combustion zone around well 12 extending substantially the thickness of the stratum, it is desirable to remove packer 2d or packers 26 and 2S, in case the arrangement of FIGURE 2 is utilized. Thereafter, in the event inverse drive of the combustion zone is to be practiced, air is injected thru well 14 so that it passes thru stratum lil into the combustion zone around well 12, thereby causing the combustion zone to advance toward well i4. Of course, the annular cornbustion zone around well 12 is preferably advanced radially outwardly into the stratum in all directions by injecting air thru` a ring of surrounding wells. In the event direct drive of the annular combustion zone is to be utilized, air is injected thru well 12 and the combustion front is driven toward the surrounding wells 1d with production being recovered thru tubing 24. or the annulus and line 25.

In thick strata containing highly viscous oil, it is impossible to utilize direct drive either vertically along the ignition well or horizontally toward the offset wells. With such strata, direct drive of the combustion zone causes plugging of the stratum due to the driving of hot liquid oil Iinto the cool stratum outside the combustion zone where the oil congeals and prevents flow of gases thru the stratum, thereby preventing arrival of air in the cornbustionv zone and causing the lire to die out. Hence, in most strata it is preferred and necessary to utilize inverse drive of the combustion fronts or zones.

It is impossible to advance a combustion front by inverse drive using inverse air injection thru the offset t Wells in strata'containing substantially no gaseous hydrocarbon.r In operating in such strata it is necessary to .incorporate in the injected air or other combustion-supporting gas from 1 to 3 or 4 volume percent of fuel gas, such as the Vlight normally gaseous hydrocarbons or L.P.G. The arrival of the fuel in the combustion front in admix- Vture with excess oxygen causes the combustion of the fuel gas which maintains a suiliciently high ltemperature Vin the combustion front to burn some of the inpiace khydrocarbons and produce oil from the stratum.

Itiris'within the scope of the invention to ignite the stratumA by any suitablemeans, although ignition with a,

Vcharcoal pack burned in contact with the stratum by passing air thereto (which may contain a small concentration of fuel gas) is preferred. The essence of the invenftion is the establishment of an annular combustion zone Well and atleast one oifsetwell which comprises providing said ignition well with a tubing string extending to a lower level Vof said stratum; positioning a packer around vsaid tubing at an intermediate level of said stratum dividing same 4into an upper level and a lower level; while maintaining said at least one offset well closed in, conducting a first combustion `phase by igniting said lstratum at Aa selected one'of rsaid upper and'said lower level; passing t d combustion-supporting gas directly into the resulting cornbustion zone at the selected level from one of the tubing and the annulus of said ignition well so as to expand said zone thru an annular section of stratum to the other of said levels by direct drive; thereafter conducting a second combustion phase by passing said gas to the resulting annular combustion zone from one of said ignition well and said offset well so as to move said combustion zone toward said offset well; and recovering hydrocarbons produced by the second phase combustion from one of said wells.

2. The process of claim l wherein said stratum is ignited at said upper level; said combustion-supporting gas is injected thru the ignition well annulus so as to move said combustion zone by direct drive to said lower level; and gases produced by said first combustion phase are produced thru said tubing string.

3. The process of claim l wherein said combustionsupporting gas for said second combustion phase is injected thru said at least one offset well so as to move said zone by inverse drive toward said offset well; and gases produced by said second combustion phase are recovered from said ignition well.

4. The process of claim l wherein said combustion-supporting gas for said second combustion phase is injected thru said ignition well so as to move said combustion zone by direct drive toward said at least one offset well; and gases produced during said second combustion phase are recovered from said at least one offset well.

5. A process for producing hydrocarbons from a permeable carbonaceous stratum penetrated by an ignition well and at least one offset well which comprises providing said ignition Well with a tubing string extending to a lower level of said stratum; positioning upper and lower packers on said tubing string at upper and lower levels of said stratum so as to leave an upper section of said stratum above said upper packer directly accessible thru the well annulus and a lower section of said stratum below said lower packer directly accessible thru said tubing; conducting a first combustion phase around said ignition well, while maintaining said at least one offset well closed in, by igniting one of said upper and lower sections; passing combustion-supporting gas directly into the resulting combustion zone from one of the tubing and annulus of said ignition well so as to expand said zone by direct drive thru an annular section of said stratum surrounding said ignition well and including said upper and lower sections; thereafter removing said packers and conducting a second combustion phase by passing combustion-supporting gas thru one of said ignition well and said otfset well to the annular combustion zone so as to advance said zone thru said stratum toward said offset well; and recovering produced gases from said second combustion phase from one of said ignition well and said offset well.

6. The process of claim 5 wherein said upper section is ignited, said combustion-supporting gas is passed to the combustion zone thru said annulus, and gases produced by said first combustion phase are recovered thru the tubing.

7. The process of claim 5 wherein said lower section is ignited, said combustion supporting gas is passed to the combustion zone thru the tubing, and gases produced during said first combustion phase are recovered thru said annulus.

8. The process of claim 5 wherein said combustionsupporting gas for said second combustion phase is injected thru said at least one offset well so as to advance said combustion zone inversely to the iiow of said gas, and produced gases from said second combustion phase are recovered thru said ignition well.

9. The process of claim 5 wherein said combustion-supporting gas for said second combustion phase is injected thrujsaid ignition well so as to advance said combustion zone by direct drive, and produced gases from said second 5 combustion phase are recovered from said at least one olset Well.

10. A process for producing hydrocarbons from a permeable carbonaceous stratum penetrated by an ignition Well and at least one offset well which comprises establishing an annular combustion zone around said ignition well extending substantially from the top to the bottom of said stratum by igniting said stratum adjacent one end section of said annulus and passing combustion-supporting gas directly into the ignited section of said annulus so as to expand the resulting combustion zone to the opposite end section of said annulus; thereafter passing combustionsupporting gas thru said at least one olfset well and thru said `stratum to said annular combustion zone so as toV References Cited in the le of this patent UNITED n STATES PATENTS Sirnm Mar. 27, 1962 Dixon July 17, 1962

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3026937 *May 17, 1957Mar 27, 1962California Research CorpMethod of controlling an underground combustion zone
US3044546 *May 25, 1959Jul 17, 1962Phillips Petroleum CoProduction of unconsolidated sands by in situ combustion
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US8857506May 24, 2013Oct 14, 2014Shell Oil CompanyAlternate energy source usage methods for in situ heat treatment processes
US8881806Oct 9, 2009Nov 11, 2014Shell Oil CompanySystems and methods for treating a subsurface formation with electrical conductors
US9016370Apr 6, 2012Apr 28, 2015Shell Oil CompanyPartial solution mining of hydrocarbon containing layers prior to in situ heat treatment
US9022109Jan 21, 2014May 5, 2015Shell Oil CompanyLeak detection in circulated fluid systems for heating subsurface formations
US9022118Oct 9, 2009May 5, 2015Shell Oil CompanyDouble insulated heaters for treating subsurface formations
US9033042Apr 8, 2011May 19, 2015Shell Oil CompanyForming bitumen barriers in subsurface hydrocarbon formations
US9051829Oct 9, 2009Jun 9, 2015Shell Oil CompanyPerforated electrical conductors for treating subsurface formations
US9127523Apr 8, 2011Sep 8, 2015Shell Oil CompanyBarrier methods for use in subsurface hydrocarbon formations
US9127538Apr 8, 2011Sep 8, 2015Shell Oil CompanyMethodologies for treatment of hydrocarbon formations using staged pyrolyzation
US9129728Oct 9, 2009Sep 8, 2015Shell Oil CompanySystems and methods of forming subsurface wellbores
US9181780Apr 18, 2008Nov 10, 2015Shell Oil CompanyControlling and assessing pressure conditions during treatment of tar sands formations
US9309755Oct 4, 2012Apr 12, 2016Shell Oil CompanyThermal expansion accommodation for circulated fluid systems used to heat subsurface formations
US9399905May 4, 2015Jul 26, 2016Shell Oil CompanyLeak detection in circulated fluid systems for heating subsurface formations
US20020027001 *Apr 24, 2001Mar 7, 2002Wellington Scott L.In situ thermal processing of a coal formation to produce a selected gas mixture
US20020029881 *Apr 24, 2001Mar 14, 2002De Rouffignac Eric PierreIn situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources
US20020029882 *Apr 24, 2001Mar 14, 2002Rouffignac Eric Pierre DeIn situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas
US20020029884 *Apr 24, 2001Mar 14, 2002De Rouffignac Eric PierreIn situ thermal processing of a coal formation leaving one or more selected unprocessed areas
US20020029885 *Apr 24, 2001Mar 14, 2002De Rouffignac Eric PierreIn situ thermal processing of a coal formation using a movable heating element
US20020033255 *Apr 24, 2001Mar 21, 2002Fowler Thomas DavidIn situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment
US20020033256 *Apr 24, 2001Mar 21, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio
US20020033257 *Apr 24, 2001Mar 21, 2002Shahin Gordon ThomasIn situ thermal processing of hydrocarbons within a relatively impermeable formation
US20020034380 *Apr 24, 2001Mar 21, 2002Maher Kevin AlbertIn situ thermal processing of a coal formation with a selected moisture content
US20020035307 *Apr 24, 2001Mar 21, 2002Vinegar Harold J.In situ thermal processing of a coal formation, in situ production of synthesis gas, and carbon dioxide sequestration
US20020036083 *Apr 24, 2001Mar 28, 2002De Rouffignac Eric PierreIn situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer
US20020036084 *Apr 24, 2001Mar 28, 2002Vinegar Harold J.In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation
US20020036103 *Apr 24, 2001Mar 28, 2002Rouffignac Eric Pierre DeIn situ thermal processing of a coal formation by controlling a pressure of the formation
US20020038069 *Apr 24, 2001Mar 28, 2002Wellington Scott LeeIn situ thermal processing of a coal formation to produce a mixture of olefins, oxygenated hydrocarbons, and aromatic hydrocarbons
US20020038705 *Apr 24, 2001Apr 4, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
US20020038709 *Apr 24, 2001Apr 4, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US20020038710 *Apr 24, 2001Apr 4, 2002Maher Kevin AlbertIn situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content
US20020038711 *Apr 24, 2001Apr 4, 2002Rouffignac Eric Pierre DeIn situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores
US20020038712 *Apr 24, 2001Apr 4, 2002Vinegar Harold J.In situ production of synthesis gas from a coal formation through a heat source wellbore
US20020039486 *Apr 24, 2001Apr 4, 2002Rouffignac Eric Pierre DeIn situ thermal processing of a coal formation using heat sources positioned within open wellbores
US20020040177 *Apr 24, 2001Apr 4, 2002Maher Kevin AlbertIn situ thermal processing of a hydrocarbon containig formation, in situ production of synthesis gas, and carbon dioxide sequestration
US20020040778 *Apr 24, 2001Apr 11, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content
US20020040779 *Apr 24, 2001Apr 11, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce a mixture containing olefins, oxygenated hydrocarbons, and/or aromatic hydrocarbons
US20020040780 *Apr 24, 2001Apr 11, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce a selected mixture
US20020043365 *Apr 24, 2001Apr 18, 2002Berchenko Ilya EmilIn situ thermal processing of a coal formation with a selected ratio of heat sources to production wells
US20020043366 *Apr 24, 2001Apr 18, 2002Wellington Scott LeeIn situ thermal processing of a coal formation and ammonia production
US20020043367 *Apr 24, 2001Apr 18, 2002Rouffignac Eric Pierre DeIn situ thermal processing of a hydrocarbon containing formation to increase a permeability of the formation
US20020045553 *Apr 24, 2001Apr 18, 2002Vinegar Harold J.In situ thermal processing of a hycrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation
US20020046832 *Apr 24, 2001Apr 25, 2002Etuan ZhangIn situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products
US20020046838 *Apr 24, 2001Apr 25, 2002Karanikas John MichaelIn situ thermal processing of a hydrocarbon containing formation with carbon dioxide sequestration
US20020049360 *Apr 24, 2001Apr 25, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce a mixture including ammonia
US20020050352 *Apr 24, 2001May 2, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to control product composition
US20020050356 *Apr 24, 2001May 2, 2002Vinegar Harold J.In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio
US20020050357 *Apr 24, 2001May 2, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content
US20020052297 *Apr 24, 2001May 2, 2002Rouffignac Eric Pierre DeIn situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation
US20020053429 *Apr 24, 2001May 9, 2002Stegemeier George LeoIn situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control
US20020053432 *Apr 24, 2001May 9, 2002Berchenko Ilya EmilIn situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources
US20020053435 *Apr 24, 2001May 9, 2002Vinegar Harold J.In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate
US20020056551 *Apr 24, 2001May 16, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation in a reducing environment
US20020057905 *Apr 24, 2001May 16, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids
US20020062051 *Apr 24, 2001May 23, 2002Wellington Scott L.In situ thermal processing of a hydrocarbon containing formation with a selected moisture content
US20020062959 *Apr 24, 2001May 30, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio
US20020062961 *Apr 24, 2001May 30, 2002Vinegar Harold J.In situ thermal processing of a hydrocarbon containing formation and ammonia production
US20020066565 *Apr 24, 2001Jun 6, 2002Rouffignac Eric Pierre DeIn situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources
US20020074117 *Apr 24, 2001Jun 20, 2002Shahin Gordon ThomasIn situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells
US20020076212 *Apr 24, 2001Jun 20, 2002Etuan ZhangIn situ thermal processing of a hydrocarbon containing formation producing a mixture with oxygenated hydrocarbons
US20020077515 *Apr 24, 2001Jun 20, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range
US20020084074 *Sep 24, 2001Jul 4, 2002De Rouffignac Eric PierreIn situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation
US20020096320 *Apr 24, 2001Jul 25, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation using a controlled heating rate
US20020104654 *Apr 24, 2001Aug 8, 2002Shell Oil CompanyIn situ thermal processing of a coal formation to convert a selected total organic carbon content into hydrocarbon products
US20020108753 *Apr 24, 2001Aug 15, 2002Vinegar Harold J.In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation
US20020117303 *Apr 24, 2001Aug 29, 2002Vinegar Harold J.Production of synthesis gas from a hydrocarbon containing formation
US20020132862 *Apr 24, 2001Sep 19, 2002Vinegar Harold J.Production of synthesis gas from a coal formation
US20020170708 *Apr 24, 2001Nov 21, 2002Shell Oil CompanyIn situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio
US20020191968 *Apr 24, 2001Dec 19, 2002Vinegar Harold J.In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas
US20020191969 *Apr 24, 2001Dec 19, 2002Wellington Scott LeeIn situ thermal processing of a coal formation in reducing environment
US20030006039 *Apr 24, 2001Jan 9, 2003Etuan ZhangIn situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance
US20030019626 *Apr 24, 2001Jan 30, 2003Vinegar Harold J.In situ thermal processing of a coal formation with a selected hydrogen content and/or selected H/C ratio
US20030024699 *Apr 24, 2001Feb 6, 2003Vinegar Harold J.In situ production of synthesis gas from a coal formation, the synthesis gas having a selected H2 to CO ratio
US20030051872 *Apr 24, 2001Mar 20, 2003De Rouffignac Eric PierreIn situ thermal processing of a coal formation with heat sources located at an edge of a coal layer
US20030062154 *Apr 24, 2001Apr 3, 2003Vinegar Harold J.In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore
US20030062164 *Apr 24, 2001Apr 3, 2003Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids
US20030066642 *Apr 24, 2001Apr 10, 2003Wellington Scott LeeIn situ thermal processing of a coal formation producing a mixture with oxygenated hydrocarbons
US20030066644 *Apr 24, 2001Apr 10, 2003Karanikas John MichaelIn situ thermal processing of a coal formation using a relatively slow heating rate
US20030085034 *Apr 24, 2001May 8, 2003Wellington Scott LeeIn situ thermal processing of a coal formation to produce pyrolsis products
US20030100451 *Apr 24, 2002May 29, 2003Messier Margaret AnnIn situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US20030130136 *Apr 24, 2002Jul 10, 2003Rouffignac Eric Pierre DeIn situ thermal processing of a relatively impermeable formation using an open wellbore
US20030131995 *Apr 24, 2002Jul 17, 2003De Rouffignac Eric PierreIn situ thermal processing of a relatively impermeable formation to increase permeability of the formation
US20030137181 *Apr 24, 2002Jul 24, 2003Wellington Scott LeeIn situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range
US20030141065 *Apr 24, 2001Jul 31, 2003Karanikas John MichaelIn situ thermal processing of hydrocarbons within a relatively permeable formation
US20030164234 *Apr 24, 2001Sep 4, 2003De Rouffignac Eric PierreIn situ thermal processing of a hydrocarbon containing formation using a movable heating element
US20030164238 *Apr 24, 2001Sep 4, 2003Vinegar Harold J.In situ thermal processing of a coal formation using a controlled heating rate
US20030173072 *Oct 24, 2002Sep 18, 2003Vinegar Harold J.Forming openings in a hydrocarbon containing formation using magnetic tracking
US20030173082 *Oct 24, 2002Sep 18, 2003Vinegar Harold J.In situ thermal processing of a heavy oil diatomite formation
US20030178191 *Oct 24, 2002Sep 25, 2003Maher Kevin AlbertIn situ recovery from a kerogen and liquid hydrocarbon containing formation
US20030183390 *Oct 24, 2002Oct 2, 2003Peter VeenstraMethods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations
US20030192691 *Oct 24, 2002Oct 16, 2003Vinegar Harold J.In situ recovery from a hydrocarbon containing formation using barriers
US20030192693 *Oct 24, 2002Oct 16, 2003Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US20030196788 *Oct 24, 2002Oct 23, 2003Vinegar Harold J.Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation
US20030196789 *Oct 24, 2002Oct 23, 2003Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation and upgrading of produced fluids prior to further treatment
US20030213594 *Jun 12, 2003Nov 20, 2003Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
US20040015023 *Apr 24, 2001Jan 22, 2004Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate
US20040108111 *Apr 24, 2001Jun 10, 2004Vinegar Harold J.In situ thermal processing of a coal formation to increase a permeability/porosity of the formation
US20040140095 *Oct 24, 2003Jul 22, 2004Vinegar Harold J.Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation
US20040144540 *Oct 24, 2003Jul 29, 2004Sandberg Chester LedlieHigh voltage temperature limited heaters
US20040146288 *Oct 24, 2003Jul 29, 2004Vinegar Harold J.Temperature limited heaters for heating subsurface formations or wellbores
US20040193082 *Mar 28, 2003Sep 30, 2004Cofre Ruth P.Dynamic position adjustment device for portions of the human body
US20040211569 *Oct 24, 2002Oct 28, 2004Vinegar Harold J.Installation and use of removable heaters in a hydrocarbon containing formation
US20050006097 *Oct 24, 2003Jan 13, 2005Sandberg Chester LedlieVariable frequency temperature limited heaters
US20060213657 *Jan 31, 2006Sep 28, 2006Shell Oil CompanyIn situ thermal processing of an oil shale formation using a pattern of heat sources
US20070095537 *Oct 20, 2006May 3, 2007Vinegar Harold JSolution mining dawsonite from hydrocarbon containing formations with a chelating agent
US20070284108 *Apr 20, 2007Dec 13, 2007Roes Augustinus W MCompositions produced using an in situ heat treatment process
US20070289733 *Apr 20, 2007Dec 20, 2007Hinson Richard AWellhead with non-ferromagnetic materials
US20080236831 *Oct 19, 2007Oct 2, 2008Chia-Fu HsuCondensing vaporized water in situ to treat tar sands formations
US20080314593 *Jun 1, 2007Dec 25, 2008Shell Oil CompanyIn situ thermal processing of an oil shale formation using a pattern of heat sources
US20090090158 *Apr 18, 2008Apr 9, 2009Ian Alexander DavidsonWellbore manufacturing processes for in situ heat treatment processes
US20090194286 *Oct 13, 2008Aug 6, 2009Stanley Leroy MasonMulti-step heater deployment in a subsurface formation
US20090200022 *Oct 13, 2008Aug 13, 2009Jose Luis BravoCryogenic treatment of gas
US20090200290 *Oct 13, 2008Aug 13, 2009Paul Gregory CardinalVariable voltage load tap changing transformer
US20090272526 *Nov 5, 2009David Booth BurnsElectrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations
US20090272536 *Apr 10, 2009Nov 5, 2009David Booth BurnsHeater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations
US20100071903 *Mar 25, 2010Shell Oil CompanyMines and tunnels for use in treating subsurface hydrocarbon containing formations
US20100071904 *Mar 25, 2010Shell Oil CompanyHydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US20100155070 *Oct 9, 2009Jun 24, 2010Augustinus Wilhelmus Maria RoesOrganonitrogen compounds used in treating hydrocarbon containing formations
Classifications
U.S. Classification166/257
International ClassificationE21B43/243, E21B43/16
Cooperative ClassificationE21B43/243
European ClassificationE21B43/243