US2863510A - Process for igniting hydrocarbon materials present within oil-bearing formations - Google Patents
Process for igniting hydrocarbon materials present within oil-bearing formations Download PDFInfo
- Publication number
- US2863510A US2863510A US524304A US52430455A US2863510A US 2863510 A US2863510 A US 2863510A US 524304 A US524304 A US 524304A US 52430455 A US52430455 A US 52430455A US 2863510 A US2863510 A US 2863510A
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- Prior art keywords
- oil
- liquid
- formation
- borehole
- combustible
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/006—Combined heating and pumping means
Definitions
- the invention relates to the production of petroleum and pertains more particularly to a process for igniting oil, oil residue or other combustible materials presentin an oil-bearing formation in the production of petroleum by means of underground combustion.
- the combustible material (oil, oil residue, tar, etc.) in an oil-bearing formation is brought to the high temperature required for combustion by introducing into a well and contacting the oil-bearing formation therein with a liquid which oxidizes relatively easily, together with, or followed by, a gaseous oxidant which under the operating conditions reacts spontaneously with the liquid.
- a part of the combustible material present in the formation usually oil, may have collected in one or more wells which lead into the formation. Accordingly, the oil (oil residue, etc.) present in the wells also belongs to the combustible material which can be ignited according to the invention.
- the desired result can often be obtained by introducing the liquid into a well, it is advisable, in some areas, to force the liquid into the formation itself.
- the gaseous oxidant reacts with the oxidizable liquid, developing a high degree of heat, as a result of which the heat required for ignition is developed at the very place (the bottom of the well and in the formation itself) where it is required for the underground combustion which then follows.
- By forcing air into the formation afterwards, a uniform combustion of the oil surrounding the well can be readily obtained.
- the oxidizable liquid and the oxidant are chosen so that under the operating conditions (of pressure and temperature in the well. or the formation) there is a spou-- taneous reaction between these substances. It is advisable, however, to use a combination which reactsat even lower temperatures than those encountered in a well.
- Suitable oxidizable liquids include: unsaturated aliphatic hydrocarbons, such 'as cracked distillates; cyclic hydrocarbons, such as turpentine, tetralin or decalin; unsaturated aliphatic or cyclic oxygen-containing compounds, such as croton-aldehyde,,allylalcohol, furfural or linseed oil; aliphatic or cyclic nitrogen-containing, com: pounds, such as ethylene diamine or anilineand phenylhydrazine. l
- the liquid in question need not be a simple substance, but may consist of a mixture of chemical compounds; moreover, it may comprise a reaction initiator, such as peroxide, or a catalyst, such as manganese resinate.
- the liquid may also be a suspension or an emulsion.
- the gaseous oxidant should be so chosen that, at least under the operating conditions of pressure and temperature in the well or the formation, it reacts spontaneously with the liquid. Suitable substances include oxygen,
- ozone gaseous nitrogen oxides, gases containing a.relatively high concentration of such oxidants, and mixtures of such. gases.
- gases containing a.relatively high concentration of such oxidants gases containing a.relatively high concentration of such oxidants, and mixtures of such. gases.
- ordinary air may also be .used, generally under high pressure.
- Air is generally used for, maintaining the actual com: bustion of the oil. in the formation, which thus follows the ignition. If desired, this air may contain an in,- creased or reduced oxygen content. Air with a reduced oxygen content may be obtained by mixing it with inert gases.
- the formation contains a relatively large amount of water, it is often advantageous first to expel the water from the neighborhood of the well, for example, by using a gas drive since the water is more readily displaced than the more viscous oil.
- the readily oxidizable liquid may sometimes be omitted altogether, provided a gas is chosen as the oxidant which contains a very high concentration of oxygen (preferably pure or substantially pure oxygen), if desired, together with a gaseous catalyst: or reaction initiator such as ozone or N0
- the gaseous oxidant may, for example, first be passed through an ozonizer which may, for example, be provided in the well.
- the pressure at which the oxidant is introduced. may be 25- atm. or even higher.
- the method of igniting said combustible material comprising the steps of introducing into said borehole and contacting with said combustible material an amount of a readily oxidizable material which is normally a liquid and a gaseous oxidant which reacts spontaneously at borehole conditions with said liquid to raise the temperature at said combustible materdial to its ignition point with combustion taking place while the oxidizable liquid is in liquid form.
- the method of igniting said combustible material comprising the steps of introducing into said borehole an amount of a readily oxidizable material which is normally a liquid and a gaseous oxidant which reacts spontaneously at borehole conditions with said liquid, and injecting said liquid and gaseous oxidant into said oil-bearing formation so that they react with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form.
- the method of igniting said combustible material comprising the steps of introducing into said borehole an amount of a readily oxidizable material which is normally a liquid and a gaseous oxidant which reacts spontaneously at borehole conditions with said liquid, and injecting said liquid and gaseous oxidant into said oilbearing formation so as to react with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form, said gaseous oxidant being a gas containing at least 50 percent oxygen.
- the method of igniting said combustible material comprising the steps of introducing into said borehole an amount of a readily oxidizable material which is normally a liquid and a gaseous oxidant which reacts spontaneously at borehole conditions with said liquid, and injecting said liquid and gaseous oxidant into said oilbearing formation so as to react with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form, said oxidant being gaseous nitrogen oxides.
- a readily oxidizable material which is normally a liquid and a gaseous oxidant which reacts spontaneously at borehole conditions with said liquid
- injecting said liquid and gaseous oxidant into said oilbearing formation so as to react with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form, said oxidant being gaseous nitrogen oxides.
- the method of igniting said combustible material comprising the steps of introducing simultaneously into said borehole an amount of a gaseous oxidant and an amount of a readily oxidizable material which is normally a liquid, and injecting said gaseous oxidant and liquid simultaneously into said oil-bearing formation so that they react spontaneously with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form.
- the method of igniting said combustible material comprising the steps of introducing simultaneously into said borehole an amount of a gaseous oxidant and an amount of a readily oxidizable material which is normally a liquid, and injecting said gaseous oxidant and liquid simultaneously into said oil-bearing formation so that they react spontaneously with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form, said liquid being a cracked petroleum distillate capable of reducing the ignition temperature of the combustible material.
Description
2,863,510 Patented Dec. 9, 1958 PROCESS FOR IGNITING HY DROCARBON MATE- RIALS PRESENT WITHIN OIL-BEARIN G FORMA- TIONS Harco J. Tadema and Johannes T. Quant, Amsterdam, I .Netherlands, assignors toShell Development tl'ompnny,
New York, N. Y., a corporation of Delaware No Drawing. Application July 25, 1955 Serial No. 524,304
Claims priority, application Netherlands July 3%), was
' 6 Claims. (Cl. 166-38) The invention relates to the production of petroleum and pertains more particularly to a process for igniting oil, oil residue or other combustible materials presentin an oil-bearing formation in the production of petroleum by means of underground combustion.
It has previously been proposed to produce oil by the use of underground combustion. In this method a part of the oil originally present in the oil-bearing formation is burnt. To this end, the oil is ignited in or through one or more wells, the combustion of the oil being subsequently maintained by forcing in air and attempting to produce the unburnt portion of oil from one or more (the same or other) wells.
Various methods are known for igniting oil, oil residue, tarry substances, etc. present in the formation. To this end, highly heated gases are usually introduced in a well and forced into the formation. It has also been proposed to ignite the oil by means of an electric current or thermite bombs. It ,is, however, difl'icult to obtain a uniform combustion of the oil in the formation by these methods. Furthermore, there is a considerable risk of the formation being clogged by deposits of solid combustion products and as a result of sintering caused by the very high temperatures which occur.
It is therefore an object of the present invention to provide a method of ignition which ensures a uniform combustion of the oil in the formation surrounding a well, without the formation being clogged by deposits or sintering, since in this method the temperature does not increase to such an extent that there is any possibility of the formation sintering.
According to the invention the combustible material (oil, oil residue, tar, etc.) in an oil-bearing formation is brought to the high temperature required for combustion by introducing into a well and contacting the oil-bearing formation therein with a liquid which oxidizes relatively easily, together with, or followed by, a gaseous oxidant which under the operating conditions reacts spontaneously with the liquid.
A part of the combustible material present in the formation, usually oil, may have collected in one or more wells which lead into the formation. Accordingly, the oil (oil residue, etc.) present in the wells also belongs to the combustible material which can be ignited according to the invention.
Although the desired result can often be obtained by introducing the liquid into a well, it is advisable, in some areas, to force the liquid into the formation itself. The gaseous oxidant reacts with the oxidizable liquid, developing a high degree of heat, as a result of which the heat required for ignition is developed at the very place (the bottom of the well and in the formation itself) where it is required for the underground combustion which then follows. By forcing air into the formation afterwards, a uniform combustion of the oil surrounding the well can be readily obtained.
In any case the relatively easily oxidizable liquid should be more readily oxidizable" than the combustible material in the formation (measured under the same conditions),
The oxidizable liquid and the oxidant are chosen so that under the operating conditions (of pressure and temperature in the well. or the formation) there is a spou-- taneous reaction between these substances. It is advisable, however, to use a combination which reactsat even lower temperatures than those encountered in a well.
Suitable oxidizable liquids include: unsaturated aliphatic hydrocarbons, such 'as cracked distillates; cyclic hydrocarbons, such as turpentine, tetralin or decalin; unsaturated aliphatic or cyclic oxygen-containing compounds, such as croton-aldehyde,,allylalcohol, furfural or linseed oil; aliphatic or cyclic nitrogen-containing, com: pounds, such as ethylene diamine or anilineand phenylhydrazine. l
The liquid in question need not be a simple substance, but may consist of a mixture of chemical compounds; moreover, it may comprise a reaction initiator, such as peroxide, or a catalyst, such as manganese resinate. The liquid may also be a suspension or an emulsion.
The gaseous oxidantshould be so chosen that, at least under the operating conditions of pressure and temperature in the well or the formation, it reacts spontaneously with the liquid. Suitable substances include oxygen,
ozone, gaseous nitrogen oxides, gases containing a.relatively high concentration of such oxidants, and mixtures of such. gases. Occasionally (depending on the liquid and operating conditions used) ordinary air may also be .used, generally under high pressure.
Air is generally used for, maintaining the actual com: bustion of the oil. in the formation, which thus follows the ignition. If desired, this air may contain an in,- creased or reduced oxygen content. Air with a reduced oxygen content may be obtained by mixing it with inert gases.
If the formation contains a relatively large amount of water, it is often advantageous first to expel the water from the neighborhood of the well, for example, by using a gas drive since the water is more readily displaced than the more viscous oil.
If it is desired to initiate an underground combustion in a formation where a high temperature and/or a high pressure prevails naturally (viz. usually in a deep formation) the readily oxidizable liquid may sometimes be omitted altogether, provided a gas is chosen as the oxidant which contains a very high concentration of oxygen (preferably pure or substantially pure oxygen), if desired, together with a gaseous catalyst: or reaction initiator such as ozone or N0 The gaseous oxidant may, for example, first be passed through an ozonizer which may, for example, be provided in the well. The pressure at which the oxidant is introduced. may be 25- atm. or even higher.
After the temperature required for igniting the oil is reached, ordinary air may be injected instead of the said gaseous oxidant.
' We claim as our invention:
1. In the production of petroleum by means of underground combustion of combustible hydrocarbon material present in an oil-bearing formation penetrated by a borehole, the method of igniting said combustible material comprising the steps of introducing into said borehole and contacting with said combustible material an amount of a readily oxidizable material which is normally a liquid and a gaseous oxidant which reacts spontaneously at borehole conditions with said liquid to raise the temperature at said combustible materdial to its ignition point with combustion taking place while the oxidizable liquid is in liquid form.
2. In the production of petroleum by means of underground combustion of combustible hydrocarbon material present in an oil-bearing formation penetrated by a borehole, the method of igniting said combustible material comprising the steps of introducing into said borehole an amount of a readily oxidizable material which is normally a liquid and a gaseous oxidant which reacts spontaneously at borehole conditions with said liquid, and injecting said liquid and gaseous oxidant into said oil-bearing formation so that they react with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form.
, 3. In the production of petroleum by means of underground combustion of combustible hydrocarbon material present'in an oil-bearing formation penetrated by a borehole, the method of igniting said combustible material comprising the steps of introducing into said borehole an amount of a readily oxidizable material which is normally a liquid and a gaseous oxidant which reacts spontaneously at borehole conditions with said liquid, and injecting said liquid and gaseous oxidant into said oilbearing formation so as to react with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form, said gaseous oxidant being a gas containing at least 50 percent oxygen.
4. 'In the production of petroleum by means of underground combustion of combustible hydrocarbon materials present in an oil-bearing formation penetrated by a borehole, the method of igniting said combustible material comprising the steps of introducing into said borehole an amount of a readily oxidizable material which is normally a liquid and a gaseous oxidant which reacts spontaneously at borehole conditions with said liquid, and injecting said liquid and gaseous oxidant into said oilbearing formation so as to react with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form, said oxidant being gaseous nitrogen oxides.
5. In the production of petroleum by means of underground combustion of combustible hydrocarbon material present in an oil-bearing formation penetrated by a borehole, the method of igniting said combustible material comprising the steps of introducing simultaneously into said borehole an amount of a gaseous oxidant and an amount of a readily oxidizable material which is normally a liquid, and injecting said gaseous oxidant and liquid simultaneously into said oil-bearing formation so that they react spontaneously with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form.
6. In the production of petroleum by means of underground combustion of combustible hydrocarbon material present in an oil-bearing formation penetrated by a borehole, the method of igniting said combustible material comprising the steps of introducing simultaneously into said borehole an amount of a gaseous oxidant and an amount of a readily oxidizable material which is normally a liquid, and injecting said gaseous oxidant and liquid simultaneously into said oil-bearing formation so that they react spontaneously with said combustible material to raise the temperature thereof to its ignition point with combustion taking place while the oxidizable liquid is in liquid form, said liquid being a cracked petroleum distillate capable of reducing the ignition temperature of the combustible material.
References Cited in the file of this patent UNITED STATES PATENTS 1,806,499 Ranney May 19, 1931 2,382,471 Frey Aug. 14, 1945 2,747,672 Simm May 29, 1956
Claims (1)
1. IN THE PRODUCTION OF PETROLEUM BY MEANS OF UNDERGROUND COMBUSTION OF COMBUSTIBLE HYDROCARBON MATERIAL PRESENT IN AN OIL-BEARING FORMATION PENETRATED BY A BOREHOLE, THE METHOD OF IGNITING SAID COMBUSTIBLE MATERIAL COMPRISING THE STEPS OF INTRODUCING INTO SAID BOREHOLE AND CONTACTING WITH SAID COMBUSTIBLE MATERIAL AN AMOUNT OF A READILY OXIDIZABLE MATERIAL WHICH IS NORMALLY A LIQUID AND A GASEOUS OXIDANT WHICH REACTS SPONTANEOUSLY AT BOREHOLD CONDITIONS WITH SAID LIQUID TO RAISE THE TEMPERATURE AT SAID COMBUSTIBLE MATERIAL TO ITS IGNITIOIN POINT WITH COMBUSTION TAKING PLACE WHILE THE OXIDIZABLE LIQUID IS IN LIQUID FORM.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2863510X | 1954-07-30 |
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| Publication Number | Publication Date |
|---|---|
| US2863510A true US2863510A (en) | 1958-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US524304A Expired - Lifetime US2863510A (en) | 1954-07-30 | 1955-07-25 | Process for igniting hydrocarbon materials present within oil-bearing formations |
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Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3024840A (en) * | 1958-06-16 | 1962-03-13 | Texaco Inc | In situ combustion |
| US3172472A (en) * | 1960-09-22 | 1965-03-09 | Gulf Research Development Co | Ignition of fuels below the surface of the ground |
| US3179169A (en) * | 1960-10-20 | 1965-04-20 | Continental Oil Co | Method for initiating in situ combustion with pyrophoric materials |
| US3180412A (en) * | 1962-08-07 | 1965-04-27 | Texaco Inc | Initiation of in situ combustion in a secondary recovery operation for petroleum production |
| US3221812A (en) * | 1963-04-25 | 1965-12-07 | Shell Oil Co | Use of antioxidants in underground combustion control |
| US3223165A (en) * | 1963-04-08 | 1965-12-14 | Pan American Petroleum Corp | Method for heating or igniting well formations with pyrophoric materials |
| US3235006A (en) * | 1963-10-11 | 1966-02-15 | Pan American Corp | Method of supplying heat to an underground formation |
| US3250329A (en) * | 1963-05-13 | 1966-05-10 | Shell Oil Co | Consolidation using free radicals |
| US3250328A (en) * | 1963-11-19 | 1966-05-10 | Shell Oil Co | Oil production method utilizing in situ chemical heating of hydrocarbons |
| US3263750A (en) * | 1963-05-23 | 1966-08-02 | Sun Oil Co | In situ combustion method for high viscosity petroleum deposits |
| US3266572A (en) * | 1963-12-06 | 1966-08-16 | Dow Chemical Co | Stimulation of production of underground fluids by use of techniques involving high energy combustion principles |
| US3275076A (en) * | 1964-01-13 | 1966-09-27 | Mobil Oil Corp | Recovery of asphaltic-type petroleum from a subterranean reservoir |
| US3314476A (en) * | 1963-12-26 | 1967-04-18 | Texaco Inc | Initiation of in situ combustion |
| US3360041A (en) * | 1965-12-20 | 1967-12-26 | Phillips Petroleum Co | Igniting an oil stratum for in situ combustion |
| US3363687A (en) * | 1966-01-17 | 1968-01-16 | Phillips Petroleum Co | Reservoir heating with autoignitable oil to produce crude oil |
| US3379254A (en) * | 1966-08-25 | 1968-04-23 | Mobil Oil Corp | Method for initiating in situ combustion within a subterranean formation |
| US3400763A (en) * | 1966-06-23 | 1968-09-10 | Phillips Petroleum Co | Igniting a carbonaceous stratum for in situ combustion |
| US3452816A (en) * | 1967-12-15 | 1969-07-01 | Sun Oil Co | In situ combustion method |
| US3457995A (en) * | 1967-01-03 | 1969-07-29 | Phillips Petroleum Co | Igniting an underground formation |
| US3465822A (en) * | 1967-10-02 | 1969-09-09 | Phillips Petroleum Co | Thermal oil stimulation process |
| US3490530A (en) * | 1968-05-20 | 1970-01-20 | Phillips Petroleum Co | Initiating in situ combustion using an autoignitible composition |
| US3520364A (en) * | 1968-02-28 | 1970-07-14 | Texaco Inc | Method and apparatus for initiating in situ combustion |
| US3941191A (en) * | 1973-08-25 | 1976-03-02 | Deutsche Texaco Aktiengesellschaft | Method of consolidating unconsolidated or insufficiently consolidated formations |
| US4014721A (en) * | 1972-12-29 | 1977-03-29 | Deutsche Texaco Aktiengesellschaft | Ignition mixture for initiating underground in-situ combustion |
| US4057107A (en) * | 1972-12-29 | 1977-11-08 | Deutsche Texaco Aktiengesellschaft | Method of initiating underground in-situ combustion |
| US4099566A (en) * | 1974-06-26 | 1978-07-11 | Texaco Exploration Canada Ltd. | Vicous oil recovery method |
| FR2474558A1 (en) * | 1980-01-28 | 1981-07-31 | Inst Francais Du Petrole | IMPROVED METHOD CONSOLIDATION OF GEOLOGICAL FORMATIONS |
| US5564861A (en) * | 1995-06-06 | 1996-10-15 | Khudenko; Boris M. | Thermal method of in-situ soil treatment |
| US20060191686A1 (en) * | 2005-02-25 | 2006-08-31 | Halliburton Energy Services, Inc. | Methods and compositions for the in-situ thermal stimulation of hydrocarbons using peroxide-generating compounds |
| US11028675B2 (en) | 2014-08-15 | 2021-06-08 | Global Oil EOR Systems, Ltd. | Hydrogen peroxide steam generator for oilfield applications |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1806499A (en) * | 1931-05-19 | Method | ||
| US2382471A (en) * | 1941-03-03 | 1945-08-14 | Phillips Petroleum Co | Method of recovering hydrocarbons |
| US2747672A (en) * | 1953-09-11 | 1956-05-29 | California Research Corp | Method of heating subterranean formations |
-
1955
- 1955-07-25 US US524304A patent/US2863510A/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1806499A (en) * | 1931-05-19 | Method | ||
| US2382471A (en) * | 1941-03-03 | 1945-08-14 | Phillips Petroleum Co | Method of recovering hydrocarbons |
| US2747672A (en) * | 1953-09-11 | 1956-05-29 | California Research Corp | Method of heating subterranean formations |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3024840A (en) * | 1958-06-16 | 1962-03-13 | Texaco Inc | In situ combustion |
| US3172472A (en) * | 1960-09-22 | 1965-03-09 | Gulf Research Development Co | Ignition of fuels below the surface of the ground |
| US3179169A (en) * | 1960-10-20 | 1965-04-20 | Continental Oil Co | Method for initiating in situ combustion with pyrophoric materials |
| US3180412A (en) * | 1962-08-07 | 1965-04-27 | Texaco Inc | Initiation of in situ combustion in a secondary recovery operation for petroleum production |
| US3223165A (en) * | 1963-04-08 | 1965-12-14 | Pan American Petroleum Corp | Method for heating or igniting well formations with pyrophoric materials |
| US3221812A (en) * | 1963-04-25 | 1965-12-07 | Shell Oil Co | Use of antioxidants in underground combustion control |
| US3250329A (en) * | 1963-05-13 | 1966-05-10 | Shell Oil Co | Consolidation using free radicals |
| US3263750A (en) * | 1963-05-23 | 1966-08-02 | Sun Oil Co | In situ combustion method for high viscosity petroleum deposits |
| US3235006A (en) * | 1963-10-11 | 1966-02-15 | Pan American Corp | Method of supplying heat to an underground formation |
| US3250328A (en) * | 1963-11-19 | 1966-05-10 | Shell Oil Co | Oil production method utilizing in situ chemical heating of hydrocarbons |
| US3266572A (en) * | 1963-12-06 | 1966-08-16 | Dow Chemical Co | Stimulation of production of underground fluids by use of techniques involving high energy combustion principles |
| US3314476A (en) * | 1963-12-26 | 1967-04-18 | Texaco Inc | Initiation of in situ combustion |
| US3275076A (en) * | 1964-01-13 | 1966-09-27 | Mobil Oil Corp | Recovery of asphaltic-type petroleum from a subterranean reservoir |
| US3360041A (en) * | 1965-12-20 | 1967-12-26 | Phillips Petroleum Co | Igniting an oil stratum for in situ combustion |
| US3363687A (en) * | 1966-01-17 | 1968-01-16 | Phillips Petroleum Co | Reservoir heating with autoignitable oil to produce crude oil |
| US3400763A (en) * | 1966-06-23 | 1968-09-10 | Phillips Petroleum Co | Igniting a carbonaceous stratum for in situ combustion |
| US3379254A (en) * | 1966-08-25 | 1968-04-23 | Mobil Oil Corp | Method for initiating in situ combustion within a subterranean formation |
| US3457995A (en) * | 1967-01-03 | 1969-07-29 | Phillips Petroleum Co | Igniting an underground formation |
| US3465822A (en) * | 1967-10-02 | 1969-09-09 | Phillips Petroleum Co | Thermal oil stimulation process |
| US3452816A (en) * | 1967-12-15 | 1969-07-01 | Sun Oil Co | In situ combustion method |
| US3520364A (en) * | 1968-02-28 | 1970-07-14 | Texaco Inc | Method and apparatus for initiating in situ combustion |
| US3490530A (en) * | 1968-05-20 | 1970-01-20 | Phillips Petroleum Co | Initiating in situ combustion using an autoignitible composition |
| US4057107A (en) * | 1972-12-29 | 1977-11-08 | Deutsche Texaco Aktiengesellschaft | Method of initiating underground in-situ combustion |
| US4014721A (en) * | 1972-12-29 | 1977-03-29 | Deutsche Texaco Aktiengesellschaft | Ignition mixture for initiating underground in-situ combustion |
| US3941191A (en) * | 1973-08-25 | 1976-03-02 | Deutsche Texaco Aktiengesellschaft | Method of consolidating unconsolidated or insufficiently consolidated formations |
| US4099566A (en) * | 1974-06-26 | 1978-07-11 | Texaco Exploration Canada Ltd. | Vicous oil recovery method |
| FR2474558A1 (en) * | 1980-01-28 | 1981-07-31 | Inst Francais Du Petrole | IMPROVED METHOD CONSOLIDATION OF GEOLOGICAL FORMATIONS |
| DE3102602A1 (en) * | 1980-01-28 | 1981-12-03 | Institut Français du Pétrole, 92502 Rueil-Malmaison, Hauts-de-Seine | METHOD FOR STRENGTHENING GEOLOGICAL FORMATIONS |
| US5564861A (en) * | 1995-06-06 | 1996-10-15 | Khudenko; Boris M. | Thermal method of in-situ soil treatment |
| WO1996039267A1 (en) * | 1995-06-06 | 1996-12-12 | Khudenko Boris M | Combustion facilitated waste and pollution treatment |
| US20060191686A1 (en) * | 2005-02-25 | 2006-08-31 | Halliburton Energy Services, Inc. | Methods and compositions for the in-situ thermal stimulation of hydrocarbons using peroxide-generating compounds |
| US7185702B2 (en) | 2005-02-25 | 2007-03-06 | Halliburton Energy Services, Inc. | Methods and compositions for the in-situ thermal stimulation of hydrocarbons using peroxide-generating compounds |
| US11028675B2 (en) | 2014-08-15 | 2021-06-08 | Global Oil EOR Systems, Ltd. | Hydrogen peroxide steam generator for oilfield applications |
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