US3351132A - Post-primary thermal method of recovering oil from oil wells and the like - Google Patents

Post-primary thermal method of recovering oil from oil wells and the like Download PDF

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Publication number
US3351132A
US3351132A US472649A US47264965A US3351132A US 3351132 A US3351132 A US 3351132A US 472649 A US472649 A US 472649A US 47264965 A US47264965 A US 47264965A US 3351132 A US3351132 A US 3351132A
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reservoir
gas
pressure
oil
temperature
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US472649A
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Dougan John Lynn
Reynolds Fred Samuel
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Equity Oil Co
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Equity Oil Co
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Priority to US472649A priority Critical patent/US3351132A/en
Priority to GB879/66A priority patent/GB1096092A/en
Priority to FR1555475D priority patent/FR1555475A/fr
Priority to DEP1267A priority patent/DE1267185B/de
Priority to NL6609982A priority patent/NL6609982A/xx
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Publication of US3351132A publication Critical patent/US3351132A/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection

Definitions

  • This invention relates to methods applied to natural oil reservoirs underground for stimulating secondary or tertiary recovery following pimary depletion. It is particularly concerned with post-primary thermal methods, whereby heat is introduced into the underground reservoir by the injection thereinto of a heat-transfer fluid.
  • thermal or other type such as water-flooding or gas-repressurizing
  • it presents highly significant advantages especially in effecting recoveries commensurate with those obtained from natural gas reservoirs and in being universally applicable to the many different situations encountered in practice.
  • the present invention makes use of heated natural gas as a miscible heat-transfer fluid, and utilizes both the thermal and the solvent properties of this medium to promote vaporization and to thereby effect the desired additional recovery from the well. No difliculty is experienced from condensation of the injected gas in the formation, and corrosion of well equipment is minimized.
  • the absolute permeability of the rock reservoir is utilized for hydrocarbon recovery, because there is but a single, free-flowing, substantially gaseous phase within the formation following injection of the heated gas and the attainment of a pre-selected operating temperature above the dew point for the mixture of hydrocarbons concerned; however, if operating pressure is as high as the cricondentherm pressure, such operating temperature is maintained above the cricondentherm, where vaporization of the hydrocarbon mixture is assured.
  • operating pressure is as high as the cricondentherm pressure
  • such operating temperature is maintained above the cricondentherm, where vaporization of the hydrocarbon mixture is assured.
  • natural gas is beneficial on fugacities and equilibrium ratios for both subsurface and surface phase relations.
  • the cricondentherm for a selected operating pressure will vary in accordance with hydrocarbon constituents. It is essentially correlative with A.P.l. gravity of oil or condensate (higher gravities have lower vaporization temperatures); contrariwise, ratios of various constituents also affect phase relations, and criticals are not rigorously correlative with A.P.I. gravity. It is well known that a temperature range of 400 F. to 1000 F. will vaporize most oils. However, with natural gas serving as a diluent, the vaporization temperature will be somewhat lower.
  • phase diagram applicable to the particular mixture of natural gas and reservoir fluid is constructed in the laboratory or by mathematical computation for the reservoir fluid concerned, so that an optimum operating temperature and pressure can be selected. Thereafter, the temperature to which the circulating gas is heated will be lowered, by pre-determined temperature decrements from time to time for most economical operation above the dew point, by computing or measuring the phase behavior in the operational range for existing hydrocarbon constituents found by periodic samplings of production.
  • natural gas is here used in its ordinarily understood sense, i.e. the gas commonly derived from oil and gas wells, which contains methane as a major constituent, usually over 90% by volume, along with minor quantities of ethane, propane, butane, etc.
  • FIG. 1 is a schematic showing in vertical section of one possible system for carrying out the process
  • FIG. 2 a phase diagram constructed for use in initially applying the process to a specific oil reservoir in which there has been isothermal-pressure primary depletion;
  • FIG. 3 a double graph plotting both temperature and pressure as abscissas and the percent of injected gas in the production flow stream as ordinate to show the cricondenbar locus and the cricondcntherm locus for the phase diagram of FIG. 2;
  • FIG. 4 a graph showing calculated performance, on an idealized basis, of the miscible displacement process of this invention (stratification not considered) in applying such process to the oil reservoir concerned in FIGS. 2 and 3.
  • natural gas is injected into the reservoir through a string of tubing 11 within a well casing 12 that is driven into the formation by usual drilling techniques.
  • casing 12 At its lower end, which extends into reservoir 10, casing 12 is perforated in customary manner as at 16, or an open-hole completion can be utilized, for passage of the heated natural gas directly into the underground reservoir formation.
  • Packer l7 seals off the anulus between tubing 11 and the upper reaches of casing 12.
  • heated natural gas travels through the reservoir formation to one or more recovery wells 18 of preferably the same construction as the injection well and either thermally insulated or not as may be found desirable.
  • Viscous crude oil or other form of hydrocarbon not otherwise recoverable is vaporized by the heated natural gas and intermingles therewith, being carried thereby to the surface through recovery well 18.
  • Separation of other than natural gas from the gaseous fluid mixture is effected in any suitable manner known to the art, as, for example, by cooling or absorption and by collecting the resulting condensate, see the apparatus indicated generally at 19, FIG. 1.
  • the separated gas is sent through a compressor 13 for recycling, following the bleeding off of such portions thereof as may be found desirable in view of the increase to be expected from the vaporized reservoir hydrocarbons, see bleed-ofli' valve and piping 20. It will usually be desirable to fire the heater with natural gas so derived.
  • a phase diagram based on temperature and pressure is constructed initially to determine the temperature to which the natural gas injected into the well as a thermal medium should be heated. This must be high enough to maintain the treated portion of the res ervoir above the dew point, and, if necessary above the cricondentherm, that is to say, above the minimum temperature that will assure vaporization of the hydrocarbons in the reservoir.
  • the operating temperature should be gradually decreased. This is done by the aid of additional computation and/or laboratory measurements from time to time on samples collected in accordance with sampling procedures known to the art.
  • phase diagram and graphs of FIGS. 2-4 are constructed from this reservoir data.
  • OIL RESERVOIR Physical properties of reservoir rock Average porosity, percent 12.7 Average permeability, millidarcys 1.3 Average interstitial water saturation, percent 31.6
  • the primary oil was produced by isothermal-pressure or normal depletion. Consequently, there was gas saturation in the reservoir which was created by the liberation of solution gas and shrinkage of reservoir oil. Because of the volatile nature of the reservoir oil and the extremely low permeability, primary recovery was less than percent of the original stock tank oil in place. The viscosity of the reservoir oil was low, but by vaporization it would be lowered twenty-six fold. Its mobility or flow characteristics would be improved by this factor, even though there were no improvement in permeability.
  • FIG. 4 shows the calculated performance for miscible displacement of this reservoir according to the invention, based on one stage separation at 65 F. and 100 p.s.i.a. It evinces high recoveries with limited injected volumes.
  • the calculations make no allowance for varying permeability and Stratification. Actual performance will be somewhat dilferent than shown, depending on the variable nature of the reservoir. Thermal expansion of the reservoir fluids in the zones of limited or dead-end permeability will cause higher recovery than other forms of miscible displacement.
  • the computations are for a mobility ratio of one, such ratio is actually less than one (probably in the order of 0.65), because the low molecular weight, injected gas has a higher viscosity than the high molecular weight, displaced gas.
  • the temperature indicated and selected for this example was 390 F., it is preferable to start with a somewhat higher temperature and to use this for the early period of injection, so as to insure delivery of the gas at a temperature adequate to start the miscible driving force before reduction in temperature to that selected.
  • operation is simplified if the sand-face temperature at the injection well is maintained below the saturated water vapor point for interstitial water.
  • a temperature of 550 F. would be permissible at the 1200 p.s.i.a. injection pressure.
  • Another type of reservoir to which the method may be advantageously applied is a gas-condensate reservoir wherein the heating costs for lower pressure gas are less than compression costs for maintaining original reservoir pressure. If retrograde condensation has already occurred in such a reservoir, it may be simpler and less expensive to re-vaporize it with heat than with pressure.
  • the invention has been characterized as a post-primary" method, it is to be understood that there are many reservoirs wherein conditions are such that primary recovery is not practical (c.g. those containing hydrocarbons that are too viscous) and that the invention may also be applied to such reservoirs.
  • a method of stimulating recovery of hydrocarbon liquids from natural oil and gas reservoirs underground comprising circulating heated gas consisting essentially of natural gas under pressure, not exceeding overburden pressure, through at least a portion of such a reservoir from an injunction well to a recovery well, the temperature of said gas being high enough to vaporize hydrocarbon liquids in said reservoir and maintain such vaporized liquids above the dew point, and above the cricondentherm when the pressure is as high as the cricondentherm pressure, so said natural gas is substantially completely miscible with said vaporized liquids.
  • a method of recovering hydrocarbon liquids from wells comprising introducing heated gas consisting essentially of natural gas under pressure, not exceeding overburden pressure, into at least a portion of such a reservoir through at least one of said wells, said gas having a temperature high enough to vaporize hydrocarbon liquids in said reservoir and maintain such vaporized liquids above the dew point, and above the cricondentherm when the pressure is as high as the cricorldentherm pressure so said gas is substantially completely miscible with said vapdrized liquids; withdrawing through at least one other of said wells said gas and such volatilized hydrocarbons as may be intermixed therewith; separating natural gas constituents from the mixture; and recycling such natural gas constituents through said reseryou.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
US472649A 1965-07-16 1965-07-16 Post-primary thermal method of recovering oil from oil wells and the like Expired - Lifetime US3351132A (en)

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Application Number Priority Date Filing Date Title
US472649A US3351132A (en) 1965-07-16 1965-07-16 Post-primary thermal method of recovering oil from oil wells and the like
GB879/66A GB1096092A (en) 1965-07-16 1966-01-07 Thermal method of recovering liquid hydrocarbons from underground deposits
FR1555475D FR1555475A (enrdf_load_stackoverflow) 1965-07-16 1966-02-02
DEP1267A DE1267185B (de) 1965-07-16 1966-03-11 Verfahren zur Gewinnung von fluessigen Kohlenwasserstoffen aus einer unterirdischen OEllagerstaette
NL6609982A NL6609982A (enrdf_load_stackoverflow) 1965-07-16 1966-07-15

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US472649A US3351132A (en) 1965-07-16 1965-07-16 Post-primary thermal method of recovering oil from oil wells and the like

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DE (1) DE1267185B (enrdf_load_stackoverflow)
FR (1) FR1555475A (enrdf_load_stackoverflow)
GB (1) GB1096092A (enrdf_load_stackoverflow)
NL (1) NL6609982A (enrdf_load_stackoverflow)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385359A (en) * 1966-03-18 1968-05-28 Shell Oil Co Method of producing hydrocarbons from a subsurface formation by thermal treatment
US3512585A (en) * 1968-08-08 1970-05-19 Texaco Inc Method of recovering hydrocarbons by in situ vaporization of connate water
US3608638A (en) * 1969-12-23 1971-09-28 Gulf Research Development Co Heavy oil recovery method
US3954139A (en) * 1971-09-30 1976-05-04 Texaco Inc. Secondary recovery by miscible vertical drive
US4085800A (en) * 1976-12-07 1978-04-25 Phillips Petroleum Company Plugging earth strata
US4119149A (en) * 1976-12-20 1978-10-10 Texaco Inc. Recovering petroleum from subterranean formations
US4325432A (en) * 1980-04-07 1982-04-20 Henry John T Method of oil recovery
US4362213A (en) * 1978-12-29 1982-12-07 Hydrocarbon Research, Inc. Method of in situ oil extraction using hot solvent vapor injection
US4532992A (en) * 1981-08-19 1985-08-06 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Method for recovering petroleum
US4856587A (en) * 1988-10-27 1989-08-15 Nielson Jay P Recovery of oil from oil-bearing formation by continually flowing pressurized heated gas through channel alongside matrix
USRE33102E (en) * 1984-01-04 1989-10-31 The Upjohn Company Removal of volatile contaminants from the vadose zone of contaminated ground
US5106232A (en) * 1990-08-10 1992-04-21 Roy F. Weston, Inc. Method of in situ decontamination
US5160217A (en) * 1990-08-10 1992-11-03 Roy F. Weston, Inc. Method of in situ decontamination
US5221159A (en) * 1990-03-28 1993-06-22 Environmental Improvement Technologies, Inc. Subsurface contaminant remediation, biodegradation and extraction methods and apparatuses
US5472294A (en) * 1990-03-28 1995-12-05 Environmental Improvement Technologies, Inc. Contaminant remediation, biodegradation and volatilization methods and apparatuses
US5554290A (en) * 1995-04-11 1996-09-10 Geraghty & Miller, Inc. Insitu anaerobic reactive zone for insitu metals precipitation and to achieve microbial de-nitrification
US5575589A (en) * 1995-04-11 1996-11-19 Geraghty & Miller, Inc. Apparatus and method for removing volatile contaminants from phreatic water
US5588490A (en) * 1995-05-31 1996-12-31 Geraghty & Miller, Inc. Method and system to achieve two dimensional air sparging
US6007274A (en) * 1997-05-19 1999-12-28 Arcadis Geraghty & Miller In-well air stripping, oxidation, and adsorption
US6116816A (en) * 1998-08-26 2000-09-12 Arcadis Geraghty & Miller, Inc. In situ reactive gate for groundwater remediation
US6143177A (en) * 1995-04-11 2000-11-07 Arcadis Geraghty & Miller, Inc. Engineered in situ anaerobic reactive zones
US20030015458A1 (en) * 2001-06-21 2003-01-23 John Nenniger Method and apparatus for stimulating heavy oil production
US20080087328A1 (en) * 2004-10-25 2008-04-17 Sargas As Method and Plant for Transport of Rich Gas
EP2058471A1 (en) * 2007-11-06 2009-05-13 Bp Exploration Operating Company Limited Method of injecting carbon dioxide
US7640987B2 (en) 2005-08-17 2010-01-05 Halliburton Energy Services, Inc. Communicating fluids with a heated-fluid generation system
US20100096147A1 (en) * 2006-07-19 2010-04-22 John Nenniger Methods and Apparatuses For Enhanced In Situ Hydrocarbon Production
US20100163229A1 (en) * 2006-06-07 2010-07-01 John Nenniger Methods and apparatuses for sagd hydrocarbon production
US7770643B2 (en) 2006-10-10 2010-08-10 Halliburton Energy Services, Inc. Hydrocarbon recovery using fluids
US7809538B2 (en) 2006-01-13 2010-10-05 Halliburton Energy Services, Inc. Real time monitoring and control of thermal recovery operations for heavy oil reservoirs
US7832482B2 (en) 2006-10-10 2010-11-16 Halliburton Energy Services, Inc. Producing resources using steam injection
US8109334B2 (en) 2009-07-13 2012-02-07 Schlumberger Technology Corporation Sampling and evaluation of subterranean formation fluid
US9670760B2 (en) 2013-10-30 2017-06-06 Chevron U.S.A. Inc. Process for in situ upgrading of a heavy hydrocarbon using asphaltene precipitant additives
US10487636B2 (en) 2017-07-27 2019-11-26 Exxonmobil Upstream Research Company Enhanced methods for recovering viscous hydrocarbons from a subterranean formation as a follow-up to thermal recovery processes
US10975291B2 (en) 2018-02-07 2021-04-13 Chevron U.S.A. Inc. Method of selection of asphaltene precipitant additives and process for subsurface upgrading therewith
US11002123B2 (en) 2017-08-31 2021-05-11 Exxonmobil Upstream Research Company Thermal recovery methods for recovering viscous hydrocarbons from a subterranean formation
US11142681B2 (en) 2017-06-29 2021-10-12 Exxonmobil Upstream Research Company Chasing solvent for enhanced recovery processes
US11261725B2 (en) 2017-10-24 2022-03-01 Exxonmobil Upstream Research Company Systems and methods for estimating and controlling liquid level using periodic shut-ins

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1904139B1 (de) * 1969-01-28 1970-12-17 Mini Petrolului Thermoisolierender Rohrstrang
DE3111137C2 (de) * 1981-03-21 1985-06-13 Fried. Krupp Gmbh, 4300 Essen Verfahren zur Untertagevergasung fester Brennstoffe mit vorangehendem Aufschließen der Lagerstätte
FR2571425B1 (fr) * 1984-06-27 1987-11-13 Inst Francais Du Petrole Procede pour augmenter la recuperation d'huile a partir de gisements d'huile a faible teneur en gaz dissous

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US895612A (en) * 1902-06-11 1908-08-11 Delos R Baker Apparatus for extracting the volatilizable contents of sedimentary strata.
US2670802A (en) * 1949-12-16 1954-03-02 Thermactor Company Reviving or increasing the production of clogged or congested oil wells
US2813583A (en) * 1954-12-06 1957-11-19 Phillips Petroleum Co Process for recovery of petroleum from sands and shale
US2906337A (en) * 1957-08-16 1959-09-29 Pure Oil Co Method of recovering bitumen
US3040809A (en) * 1957-06-05 1962-06-26 Sinclair Oil & Gas Company Process for recovering viscous crude oil from unconsolidated formations
US3241611A (en) * 1963-04-10 1966-03-22 Equity Oil Company Recovery of petroleum products from oil shale

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US895612A (en) * 1902-06-11 1908-08-11 Delos R Baker Apparatus for extracting the volatilizable contents of sedimentary strata.
US2670802A (en) * 1949-12-16 1954-03-02 Thermactor Company Reviving or increasing the production of clogged or congested oil wells
US2813583A (en) * 1954-12-06 1957-11-19 Phillips Petroleum Co Process for recovery of petroleum from sands and shale
US3040809A (en) * 1957-06-05 1962-06-26 Sinclair Oil & Gas Company Process for recovering viscous crude oil from unconsolidated formations
US2906337A (en) * 1957-08-16 1959-09-29 Pure Oil Co Method of recovering bitumen
US3241611A (en) * 1963-04-10 1966-03-22 Equity Oil Company Recovery of petroleum products from oil shale

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385359A (en) * 1966-03-18 1968-05-28 Shell Oil Co Method of producing hydrocarbons from a subsurface formation by thermal treatment
US3512585A (en) * 1968-08-08 1970-05-19 Texaco Inc Method of recovering hydrocarbons by in situ vaporization of connate water
US3608638A (en) * 1969-12-23 1971-09-28 Gulf Research Development Co Heavy oil recovery method
US3954139A (en) * 1971-09-30 1976-05-04 Texaco Inc. Secondary recovery by miscible vertical drive
US4085800A (en) * 1976-12-07 1978-04-25 Phillips Petroleum Company Plugging earth strata
US4119149A (en) * 1976-12-20 1978-10-10 Texaco Inc. Recovering petroleum from subterranean formations
US4362213A (en) * 1978-12-29 1982-12-07 Hydrocarbon Research, Inc. Method of in situ oil extraction using hot solvent vapor injection
US4325432A (en) * 1980-04-07 1982-04-20 Henry John T Method of oil recovery
US4532992A (en) * 1981-08-19 1985-08-06 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Method for recovering petroleum
USRE33102E (en) * 1984-01-04 1989-10-31 The Upjohn Company Removal of volatile contaminants from the vadose zone of contaminated ground
US4856587A (en) * 1988-10-27 1989-08-15 Nielson Jay P Recovery of oil from oil-bearing formation by continually flowing pressurized heated gas through channel alongside matrix
US5653288A (en) * 1990-03-28 1997-08-05 Billings; Jeffery F. Contaminant remediation, biodegradation and volatilization methods and apparatuses
US5221159A (en) * 1990-03-28 1993-06-22 Environmental Improvement Technologies, Inc. Subsurface contaminant remediation, biodegradation and extraction methods and apparatuses
US5277518A (en) * 1990-03-28 1994-01-11 Environmental Improvement Technologies, Inc. Contaminant remediation, biodegradation and removel methods and apparatus
US5472294A (en) * 1990-03-28 1995-12-05 Environmental Improvement Technologies, Inc. Contaminant remediation, biodegradation and volatilization methods and apparatuses
US5160217A (en) * 1990-08-10 1992-11-03 Roy F. Weston, Inc. Method of in situ decontamination
US5106232A (en) * 1990-08-10 1992-04-21 Roy F. Weston, Inc. Method of in situ decontamination
US5554290A (en) * 1995-04-11 1996-09-10 Geraghty & Miller, Inc. Insitu anaerobic reactive zone for insitu metals precipitation and to achieve microbial de-nitrification
US5575589A (en) * 1995-04-11 1996-11-19 Geraghty & Miller, Inc. Apparatus and method for removing volatile contaminants from phreatic water
US6143177A (en) * 1995-04-11 2000-11-07 Arcadis Geraghty & Miller, Inc. Engineered in situ anaerobic reactive zones
US6632364B1 (en) 1995-04-11 2003-10-14 Arcadis G & M Engineered in situ anaerobic reactive zones
US6322700B1 (en) 1995-04-11 2001-11-27 Arcadis Geraghty & Miller Engineered in situ anaerobic reactive zones
US5588490A (en) * 1995-05-31 1996-12-31 Geraghty & Miller, Inc. Method and system to achieve two dimensional air sparging
US6283674B1 (en) 1997-05-19 2001-09-04 Arcadis Geraghty & Miller In-well air stripping, oxidation, and adsorption
US6102623A (en) * 1997-05-19 2000-08-15 Arcadis Geraghty & Miller, Inc. In-well air stripping, oxidation, and adsorption
US6007274A (en) * 1997-05-19 1999-12-28 Arcadis Geraghty & Miller In-well air stripping, oxidation, and adsorption
US6254310B1 (en) 1997-05-19 2001-07-03 Arcadis Geraghty & Miller, Inc. In-well air stripping and adsorption
US6280118B1 (en) 1998-08-26 2001-08-28 Arcadis Geraghty & Miller, Inc. In situ reactive gate
US6116816A (en) * 1998-08-26 2000-09-12 Arcadis Geraghty & Miller, Inc. In situ reactive gate for groundwater remediation
US20030015458A1 (en) * 2001-06-21 2003-01-23 John Nenniger Method and apparatus for stimulating heavy oil production
US6883607B2 (en) * 2001-06-21 2005-04-26 N-Solv Corporation Method and apparatus for stimulating heavy oil production
US20050145383A1 (en) * 2001-06-21 2005-07-07 John Nenniger Method and apparatus for stimulating heavy oil production
US7363973B2 (en) * 2001-06-21 2008-04-29 N Solv Corp Method and apparatus for stimulating heavy oil production
US20080087328A1 (en) * 2004-10-25 2008-04-17 Sargas As Method and Plant for Transport of Rich Gas
US7640987B2 (en) 2005-08-17 2010-01-05 Halliburton Energy Services, Inc. Communicating fluids with a heated-fluid generation system
US7809538B2 (en) 2006-01-13 2010-10-05 Halliburton Energy Services, Inc. Real time monitoring and control of thermal recovery operations for heavy oil reservoirs
US20100163229A1 (en) * 2006-06-07 2010-07-01 John Nenniger Methods and apparatuses for sagd hydrocarbon production
US8596357B2 (en) 2006-06-07 2013-12-03 John Nenniger Methods and apparatuses for SAGD hydrocarbon production
US8776900B2 (en) 2006-07-19 2014-07-15 John Nenniger Methods and apparatuses for enhanced in situ hydrocarbon production
US20100096147A1 (en) * 2006-07-19 2010-04-22 John Nenniger Methods and Apparatuses For Enhanced In Situ Hydrocarbon Production
US7832482B2 (en) 2006-10-10 2010-11-16 Halliburton Energy Services, Inc. Producing resources using steam injection
US7770643B2 (en) 2006-10-10 2010-08-10 Halliburton Energy Services, Inc. Hydrocarbon recovery using fluids
EP2058471A1 (en) * 2007-11-06 2009-05-13 Bp Exploration Operating Company Limited Method of injecting carbon dioxide
GB2468219B (en) * 2007-11-06 2010-11-24 Bp Exploration Operating Method of injecting carbon dioxide
GB2468219A (en) * 2007-11-06 2010-09-01 Bp Exploration Operating Method of injecting carbon dioxide
US8622129B2 (en) 2007-11-06 2014-01-07 Bp Exploration Operating Company Limited Method of injecting carbon dioxide
WO2009060177A1 (en) * 2007-11-06 2009-05-14 Bp Exploration Operating Company Limited Method of injecting carbon dioxide
US8109334B2 (en) 2009-07-13 2012-02-07 Schlumberger Technology Corporation Sampling and evaluation of subterranean formation fluid
US9670760B2 (en) 2013-10-30 2017-06-06 Chevron U.S.A. Inc. Process for in situ upgrading of a heavy hydrocarbon using asphaltene precipitant additives
US11142681B2 (en) 2017-06-29 2021-10-12 Exxonmobil Upstream Research Company Chasing solvent for enhanced recovery processes
US10487636B2 (en) 2017-07-27 2019-11-26 Exxonmobil Upstream Research Company Enhanced methods for recovering viscous hydrocarbons from a subterranean formation as a follow-up to thermal recovery processes
US11002123B2 (en) 2017-08-31 2021-05-11 Exxonmobil Upstream Research Company Thermal recovery methods for recovering viscous hydrocarbons from a subterranean formation
US11261725B2 (en) 2017-10-24 2022-03-01 Exxonmobil Upstream Research Company Systems and methods for estimating and controlling liquid level using periodic shut-ins
US10975291B2 (en) 2018-02-07 2021-04-13 Chevron U.S.A. Inc. Method of selection of asphaltene precipitant additives and process for subsurface upgrading therewith

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NL6609982A (enrdf_load_stackoverflow) 1967-01-17
FR1555475A (enrdf_load_stackoverflow) 1969-01-31
GB1096092A (en) 1967-12-20
DE1267185B (de) 1968-05-02

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