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.


  1. Advanced Patent Search
Publication numberUS849524 A
Publication typeGrant
Publication dateApr 9, 1907
Filing dateJun 23, 1902
Priority dateJun 23, 1902
Publication numberUS 849524 A, US 849524A, US-A-849524, US849524 A, US849524A
InventorsDelos R Baker
Original AssigneeDelos R Baker
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Process of extracting and recovering the volatilizable contents of sedimentary mineral strata.
US 849524 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)





Specification of Letters Patent.

Patented April 9, 1907.

Application filed June 23, 1902. Serial No. 112,742.

To all whom it may concern.- I

Be it known that I, DELOS It. BAKER, a

citizen of the United States, residing at Delaware, in the county of Delawareend State of Ohio, have invented a certain neTw and useful Improvement in Processes of Extracting and Recovering the Volatilizable 7 Contents of lowing is a specification. "I

Sedimentary Mineral Strata, of which the fol- 2 is a transverse section through one of said wells on line 00 :z: of Fig. 1.

Similar numerals refer to similar parts throughout the several views.

Myprocess consists in placing in earthwells having more or less imperfect electrical ground conduction naturally or artificially existent between them wire or other conductors of electricity from some source thereof and in completing the circuit between said conductors through the said'ground connection, my objectbeing to gain therebya thermic effect upon the contents of portions of said strata'intervenient between or circumjacent to said wells, whereby the said contents may be extracted and re covered without the labor and expense of mining said strata by mechanical means and of subsequently reducing it in suitable apparatus at the earths surface.

' In the drawings I have illustrated a means ofcarrying out'this process which may be described as follows:

1 and 2 represent wells or channels of communication between said strata and the surface of' the earth, each of which is provided with a water-tight casing 3, which, as shown in the drawings, may extend from the upper ends of said wells to a suitable depth therein, the lower'ends of each of said casings meeting or connecting with a horizontally-dispose plate 'or sealing-diaphragm l. The lower end portions of the wells are connected through the medium of a tunnel, such as is indicated .at 2*; but said tunnel is an alternative communication between said wells indefault of natural communication through the seams, veins, pores, and other natural openings in said strata and is not a part of what I claim as my invention. At intervals within each of the 'wells or channels I provide guiderings 5, each of said guide-rings being formed with an inwardprojection, such as is indicated at 5*. Through openings formed in said projections 5 and in the sealing-diapliragms a pass pipes 6, these pipes extending, preferably, to the bottoms of the wells .or channels 1 and. having their lower portions perforated, as in dicated at 7. Leadin from the earths surface through the well 1 to the lower end thereof is a wire 8, said wire passing through a suitable opening in the sealing-diaphragm 4. Leadingthrough and to the lower por tion of. the well 2 is a similar wire 9; Said wires 8 and 9 may terminate at the inner ends of the wells in a pervious stratum and the connection between the same be accomplished by natural resistance elements, such as mineralized'water, which may exist in or be introduced into the said stratum or as metallic substances finely disseminated through the strata. In default of natural communi-- cation between said wells and of the provision of the artificial communication 2 the electric circuit alternatively maybe com pleted by the introduction into tunnel 2 of a metallic resistance element 10, suitably subported, as shown; but said element 10 in said tunnel 2 is not a necessary part of my inven-' tion nor claimed as such.

The [wires 8 and 9 at the earths surface may connect with a dynamo, such as indicated at 11, or with any other suitable source of electricity.

In order to provide an effective separation between theupper and lower portions of'each of the wells, I .have provided the sealing-diaphragms 4, upon which may be deposited a desirablequantity of dry and pulverizedclay or its equivalent, as indicated at 12.

By the operation upon the strata in place of the heat which results from the passage of the current through the said strata the volatilizable contents of said strata are extracted, and such contents thus extract-ed may be by suitable means withdrawn through the outlet-pipes 6-to the surface of the earth, Where they may be collected or suitably disposed of.

It is obvious that the channels of communication 1 and and their contained. wires and, pipes may have any desired inclination or may be horizontal, and I. do not desire in this a plication to limit myself to any angle of inc.inat'i0n of said channels.

As will be understood, the process herein described afl'ords a simple and reliable means for cilecting the extraction of the volatilizable contents of the sedimentary strata in place.

As examples of the volatilizable contents of sedimentary strata susceptible to the operations above specified 1 may mention the hydrocarbons, native metals-- such mercury, bismuth, antimony, arsenic, zinc, etc, sulfur, both native and in composition, inpyrite, mispicliel, galena, redruthiie, argentite, blendc, rite, chlorids l the metals and allralie-such as (itlOllil, sylvite, chlorite,

esasee what I claim, and desire to secure by Letters Patent, is-

1. The herein described process for ex:- tracting and recovering the volatilizable contents of sedimentary strata in. place in the earth, consisting of the provision of two earth-wells from the earths surface to said subterranean strata in place, the transmis sion by means of conductors in said. wells and by means of ground conduction between said Wells through said strata of a current of electricity, the withdrawal in gascmis form from one of said. wells of the products of the operation oi said current upon the contents of said strata and the recovery of the withdrawals.

2. The herein -des -,ribcd process for extracting and, recovering the volatilizable con tents of sedimentary strata in place in the earth, consisting of the provision of two scaled earth-wells from the cart hs surface to said subterrancan strata in place, the transmission by means ol' comluctors introduced into said wells and by means of ground con duction between the sealed. portions oi" said wells through said strata of a current of elec tricity, the witlulrawal in. gaseous form from one of said wells through a channel communicating between the sealed portion ol said Well and the earths surface of the prodnets of the opera'l ion of the said current upon the contents of said strata in Mac'e and the recovery of the withdrawals.


1n. presence oi A. L.' Prisms, W. L. Monnmv.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2634961 *Jun 24, 1947Apr 14, 1953Svensk Skifferolje AktiebolageMethod of electrothermal production of shale oil
US2732195 *Jun 24, 1947Jan 24, 1956 Ljungstrom
US2795279 *Apr 17, 1952Jun 11, 1957Electrotherm Res CorpMethod of underground electrolinking and electrocarbonization of mineral fuels
US2801090 *Apr 2, 1956Jul 30, 1957Exxon Research Engineering CoSulfur mining using heating by electrolysis
US2939689 *Dec 18, 1953Jun 7, 1960Husky Oil CompanyElectrical heater for treating oilshale and the like
US3103975 *Apr 10, 1959Sep 17, 1963Dow Chemical CoCommunication between wells
US3149672 *May 4, 1962Sep 22, 1964Jersey Prod Res CoMethod and apparatus for electrical heating of oil-bearing formations
US3254921 *Jun 14, 1963Jun 7, 1966Socony Mobil Oil Co IncRecovering mercury from subsurface ore deposits
US3428125 *Jul 25, 1966Feb 18, 1969Phillips Petroleum CoHydro-electropyrolysis of oil shale in situ
US3507330 *Sep 30, 1968Apr 21, 1970Electrothermic CoMethod and apparatus for secondary recovery of oil
US3972372 *Mar 10, 1975Aug 3, 1976Fisher Sidney TExraction of hydrocarbons in situ from underground hydrocarbon deposits
US3988036 *Mar 10, 1975Oct 26, 1976Fisher Sidney TElectric induction heating of underground ore deposits
US4037655 *Oct 21, 1975Jul 26, 1977Electroflood CompanyMethod for secondary recovery of oil
US4174912 *Jul 31, 1978Nov 20, 1979Electroosmosis Inc.System for heave reduction in highways due to frost or moisture in expansive clay or shale materials
US4382469 *Mar 10, 1981May 10, 1983Electro-Petroleum, Inc.Method of in situ gasification
US4473114 *Sep 29, 1982Sep 25, 1984Electro-Petroleum, Inc.In situ method for yielding a gas from a subsurface formation of hydrocarbon material
US5323855 *Feb 17, 1993Jun 28, 1994Evans James OWell stimulation process and apparatus
US5465789 *May 31, 1994Nov 14, 1995Evans; James O.Apparatus and method of magnetic well stimulation
US6805194Oct 18, 2002Oct 19, 2004Scotoil Group PlcGas and oil production
US7677673 *Mar 5, 2007Mar 16, 2010Hw Advanced Technologies, Inc.Stimulation and recovery of heavy hydrocarbon fluids
US8684079Jan 27, 2011Apr 1, 2014Exxonmobile Upstream Research CompanyUse of a solvent and emulsion for in situ oil recovery
US8752623Jan 10, 2011Jun 17, 2014Exxonmobil Upstream Research CompanySolvent separation in a solvent-dominated recovery process
US8899321Apr 11, 2011Dec 2, 2014Exxonmobil Upstream Research CompanyMethod of distributing a viscosity reducing solvent to a set of wells
US8967260May 13, 2010Mar 3, 2015Exxonmobil Upstream Research CompanySystem and method for enhancing the production of hydrocarbons
US20080073079 *Mar 5, 2007Mar 27, 2008Hw Advanced Technologies, Inc.Stimulation and recovery of heavy hydrocarbon fluids
US20100163227 *Mar 11, 2010Jul 1, 2010Hw Advanced Technologies, Inc.Stimulation and recovery of heavy hydrocarbon fluids
US20110277992 *May 14, 2010Nov 17, 2011Paul GrimesSystems and methods for enhanced recovery of hydrocarbonaceous fluids
WO2001081723A1Apr 20, 2001Nov 1, 2001Scotoil Group PlcEnhanced oil recovery by in situ gasification
Cooperative ClassificationE21B43/2401