CA2000251A1 - Method for recovering and partially upgrading bitumen from oil sands, tar sands, oil shales, h eavy oil reservoirs - Google Patents
Method for recovering and partially upgrading bitumen from oil sands, tar sands, oil shales, h eavy oil reservoirsInfo
- Publication number
- CA2000251A1 CA2000251A1 CA 2000251 CA2000251A CA2000251A1 CA 2000251 A1 CA2000251 A1 CA 2000251A1 CA 2000251 CA2000251 CA 2000251 CA 2000251 A CA2000251 A CA 2000251A CA 2000251 A1 CA2000251 A1 CA 2000251A1
- Authority
- CA
- Canada
- Prior art keywords
- oil
- bitumen
- steam
- pressure
- produced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
ABSTRACT:
A method for recovering and partially converting bitumen, kerogen and/or heavy oils to lighter hydrocarbons by extraction with (nominally) supercritical water is described. In one version of the process, steam at 400-475°C is continuously injected into the pay-zone under a pressure of 7-21 MPa, and taken off through back-pressure valves into a pressure let-down vessel where the extract falls out. Optimum extraction temperatures are induced by supplemental electrical heating or by combustion of part of the in-place organic matter. In the other version, the bitumen, kerogens and/or heavy oils produced by conventional steam-flooding techniques are partially upgraded and separated from co-produced water by slowly passing them through a reactor at 400-475°C under a pressure of 7-21 MPa, and thereafter passing them through a back-pressure valve into a pressure let-down vessel.
A method for recovering and partially converting bitumen, kerogen and/or heavy oils to lighter hydrocarbons by extraction with (nominally) supercritical water is described. In one version of the process, steam at 400-475°C is continuously injected into the pay-zone under a pressure of 7-21 MPa, and taken off through back-pressure valves into a pressure let-down vessel where the extract falls out. Optimum extraction temperatures are induced by supplemental electrical heating or by combustion of part of the in-place organic matter. In the other version, the bitumen, kerogens and/or heavy oils produced by conventional steam-flooding techniques are partially upgraded and separated from co-produced water by slowly passing them through a reactor at 400-475°C under a pressure of 7-21 MPa, and thereafter passing them through a back-pressure valve into a pressure let-down vessel.
Description
SPECIFICATION:
This invention relates to a me~hod for recovering and partially upgrading bitumens from oil sands (a.k.a. tar sands) by means of supercritical water.
More specifically it relates to a process whereby bitumen is (1) recovered by in-situ extraction with supercritical water and concurrently upgraded by virtue of the fact that said water will also chemically interact with the bitumen, or (2) after in-situ recovery by means of steam - as in a steam flooding process - partially 'upgraded' by contacting it with supercritical water.
Extraction with supercri~ical fluids ~often simply designated by the initials SCFE) is well known and commercially used in, inter alia, food processing - e.g., for removal of undesirable flavours - and for isolation of natural oils required for manufacture of cosmetics, pharmaceuticals and synthetic food additives. Fluids employed for such supercritical extraction may be carbon dioxide or a low-molecular-weight aliphatic or aromatic solvent such as n-hexane or benzene; but except for carbon dioxide, most of these solvents are used in what are, strictly speaking, subcritical conditions -i.e., at or above their critical temperatures, but well below their critical .
~, .
, . . , ~ .:
'': : : ~
25~
pressures. (In most cases, extraction therefore proceeds under what are only nominally supercritical conditions.) In recent years it has also been shown that SCFE with some aromatic solvents - for example, methanol and toluene - can serve to separate useful heavy hydrocarbon-like material from substances like coal or to recover it from host rocks such as oil sands or oil shales. However, although technically attractive and, in principle, a convenient means for generating synthetic liquid fuels from so-called unconventional sources~ the costs of such extraction are high and would be prohibitive in in-situ operations that inevitably incur large solvent losses to the surrounding strata. For practical purposes, the greater interest attaches therefore to supercritical extraction with water (SCWE).
In autoclave tests with Alberta oil sands we have found that SCWE at 400-425C under pressures of 7-21 MPa (= 2000-3000 psi) can rapidly recover over 85 weight-percent of the in-place bitumen, and that chemical interactions between (nominally) supercritical water and bitumen result in product slates which are not only virtually devoid of asphaltenes, but also contain substantially higher proportions of light hydrocarbons than bitumen per se. Additionally, we have shown that SCWE will suppress the extensive coke formation which accompanies heating of bitumen to relatively high temperatures. Thus, while bitumen pyrolysis in a non-oxidi~ing atmosphere at 400C will typically generate 15-20 weight-percent coke, SCWE at that temperature produced less than 5~; and in the presence of carbon monoxide, which interacts with steam to generate nascent hydrogen via C0 + H20 = H2 ~~
-~ ~o~z~
CO~, SCWE can further reduce coke yields to ~s low as 0.2 wt.%.
These observations point to possibilities for improved in-situ recovery of hydrocarbons or hydrocarbon-like materials from oil sands, oil shales or heavy oil reservoirs by either of two procedures.
In one, supercritical water (= steam) at 4~0-475C is continuously injected into a delineated pay-zone under pressureC; between approximately 7 and 21 MPa, directed towards one or more production holes, and there taken off through suitably sized back~pressure valves into a flow-through reservoir in which lower pressures and temperatures cause the produced bitumen, oil shale organic matter or heavy oil to separate from steam and condensed water. The temperatures required for SCWE in the pay-zone can, as necessary or desirable, be induced by supplemental conventional electrical or radio-fre~uency heating, or by combustion of some of the in-place bitumen.
In the alternative procedure, in-situ recovery of bitumen from oil sands, of hydrocarbon-like matter from oil shales, or of heavy oil from a heavy oil reservoir is accomplished by conventional steam-flooding techniques, and partial upgrading as well as more effective separation of organic matter from condensed co-produced water is achieved by passing the raw product mix from the production hole through a shell-type up-flow reactor in which the temperature and pressure are raised to 400-475C and 7-21 PMa in order to create SCWE conditions. Appropriate residence times in this reactor can be secured by internal vanes or packing that provide for sufficiently tortuous pathways through the vessel, and the final product is, as in the first method, taken off through back-pressure valves.
.. . - . . . : .
: . . .
:: :
.. : . .
. : : . .;- - , ~ ~ . .
- .
5~
A secondary benefit of either method is the substantially lower volume of co-produced saline waters, and a consequently easier, environment-friendly disposal of such waters. In the first SCWE procedure, salts would remain within the formation, and in the second, they would be left behind when the organic material is incorporated in supercritical steam, and dissolve only in condensed water.
Figures 1 and 2 illustrate schematically how the two SCWE methods might be implemented, and Table 1 shows typical data recorded during SCWE of oil sands.
An important aspect of Table 1 is the indication that extraction efficiencies depend primarily on how effectively pay-zones are swept by supercritical steam. Between fairly wide limits, SCWE yields are virtually insensitive to steam flow rates (which only affect extraction rates); and where CO is used to further suppress coke formation, steam:CO ratios are also relatively unimportant. However, the incremental amounts by which H20 + CO
reduces coke formation over H20 alone tend to vary directly with the aromaticity of the bitumen.
..~........
:, . : - -.
:.. : ~ . .. .
:; ,, :
- ~
g~z~
% 'saua~,le ldse ~ ~ ~ ~ ~o ~suoq~o~
n) ~elod a~ ~ ~ G~
U~ ~ ~ suoq~e~ y ~r ~ ~ ~
c )~ eL~e _ _ __ __ 3 9~ suoqle~o ~pi~ll ct) m ct~ cn . ~ ;)~ dlle __ __ ~ .
;~U~ll~dse cn r~ tn 'Suoqle~o~o~ ~ ~ u~ ~ cn r~ cn ~~elod, ~ ~ r~ r~ ~ ~ _ ~ .~
P~s 'suoqleoo~ { u~ ~ cn ~ u~ In ~ -e . ~ . ~
- ~eYdlle ct~ n ~D o co ~ ~ ~1 . c~ ~o r cn n ~ u~ ~ ~ c 'plal.C ~oelyca~ r- co 1~ co co r- ~ ~o ccn~
( a~,ou s )co co o _ cn ~D u~ r~ o co ~ 3 % 'a~_ ~ ~r ~ ~ o _; ' o tZ 3~0U 5)~ cn cn I ~ ~ cn C~l .~
~, 'se6 + 51~0 ~,U,61l C~ O _ _ C~l .
C~O O CO O 1` C-O ~ O er ~D .~ .
~51l ~tl~ I a~ou 51 I ~ ¦ ~1~ 1 cn ~i ~1 % 'ua~lq plsa~o w ~D o u~ r- _ u~ _ cn _ ,~
.
~ O co u~ co ~ O cn ~D ~r ~ ~i U~ 3~e:r d~g~ O ~ ~ ~ _ c~ O _ O
o~e~ ~M 'ZN: 00_ _ ~ . ~ ~ _ ';~
o~e~ ala~ 'oo: OZ~t ~ i ~ I I _ ~i a 88 8 88 ~3 pm~3 ~o~e~x~ ~ ~ m ~ ~ ,~
ec~ ' amssa~d 3i~ ~ ~ ~ ~ ~ 15 ~ ~r ~r 00 'am~e~3~7~ ~o ~ ~ ~r :1 ~r ~ ~r c - ' ou un~ ~~ ~ O ~ ~c~ c~l ,~
. :. ' :
: : . . .,: .' ~, - , . . :- : .
- : .
This invention relates to a me~hod for recovering and partially upgrading bitumens from oil sands (a.k.a. tar sands) by means of supercritical water.
More specifically it relates to a process whereby bitumen is (1) recovered by in-situ extraction with supercritical water and concurrently upgraded by virtue of the fact that said water will also chemically interact with the bitumen, or (2) after in-situ recovery by means of steam - as in a steam flooding process - partially 'upgraded' by contacting it with supercritical water.
Extraction with supercri~ical fluids ~often simply designated by the initials SCFE) is well known and commercially used in, inter alia, food processing - e.g., for removal of undesirable flavours - and for isolation of natural oils required for manufacture of cosmetics, pharmaceuticals and synthetic food additives. Fluids employed for such supercritical extraction may be carbon dioxide or a low-molecular-weight aliphatic or aromatic solvent such as n-hexane or benzene; but except for carbon dioxide, most of these solvents are used in what are, strictly speaking, subcritical conditions -i.e., at or above their critical temperatures, but well below their critical .
~, .
, . . , ~ .:
'': : : ~
25~
pressures. (In most cases, extraction therefore proceeds under what are only nominally supercritical conditions.) In recent years it has also been shown that SCFE with some aromatic solvents - for example, methanol and toluene - can serve to separate useful heavy hydrocarbon-like material from substances like coal or to recover it from host rocks such as oil sands or oil shales. However, although technically attractive and, in principle, a convenient means for generating synthetic liquid fuels from so-called unconventional sources~ the costs of such extraction are high and would be prohibitive in in-situ operations that inevitably incur large solvent losses to the surrounding strata. For practical purposes, the greater interest attaches therefore to supercritical extraction with water (SCWE).
In autoclave tests with Alberta oil sands we have found that SCWE at 400-425C under pressures of 7-21 MPa (= 2000-3000 psi) can rapidly recover over 85 weight-percent of the in-place bitumen, and that chemical interactions between (nominally) supercritical water and bitumen result in product slates which are not only virtually devoid of asphaltenes, but also contain substantially higher proportions of light hydrocarbons than bitumen per se. Additionally, we have shown that SCWE will suppress the extensive coke formation which accompanies heating of bitumen to relatively high temperatures. Thus, while bitumen pyrolysis in a non-oxidi~ing atmosphere at 400C will typically generate 15-20 weight-percent coke, SCWE at that temperature produced less than 5~; and in the presence of carbon monoxide, which interacts with steam to generate nascent hydrogen via C0 + H20 = H2 ~~
-~ ~o~z~
CO~, SCWE can further reduce coke yields to ~s low as 0.2 wt.%.
These observations point to possibilities for improved in-situ recovery of hydrocarbons or hydrocarbon-like materials from oil sands, oil shales or heavy oil reservoirs by either of two procedures.
In one, supercritical water (= steam) at 4~0-475C is continuously injected into a delineated pay-zone under pressureC; between approximately 7 and 21 MPa, directed towards one or more production holes, and there taken off through suitably sized back~pressure valves into a flow-through reservoir in which lower pressures and temperatures cause the produced bitumen, oil shale organic matter or heavy oil to separate from steam and condensed water. The temperatures required for SCWE in the pay-zone can, as necessary or desirable, be induced by supplemental conventional electrical or radio-fre~uency heating, or by combustion of some of the in-place bitumen.
In the alternative procedure, in-situ recovery of bitumen from oil sands, of hydrocarbon-like matter from oil shales, or of heavy oil from a heavy oil reservoir is accomplished by conventional steam-flooding techniques, and partial upgrading as well as more effective separation of organic matter from condensed co-produced water is achieved by passing the raw product mix from the production hole through a shell-type up-flow reactor in which the temperature and pressure are raised to 400-475C and 7-21 PMa in order to create SCWE conditions. Appropriate residence times in this reactor can be secured by internal vanes or packing that provide for sufficiently tortuous pathways through the vessel, and the final product is, as in the first method, taken off through back-pressure valves.
.. . - . . . : .
: . . .
:: :
.. : . .
. : : . .;- - , ~ ~ . .
- .
5~
A secondary benefit of either method is the substantially lower volume of co-produced saline waters, and a consequently easier, environment-friendly disposal of such waters. In the first SCWE procedure, salts would remain within the formation, and in the second, they would be left behind when the organic material is incorporated in supercritical steam, and dissolve only in condensed water.
Figures 1 and 2 illustrate schematically how the two SCWE methods might be implemented, and Table 1 shows typical data recorded during SCWE of oil sands.
An important aspect of Table 1 is the indication that extraction efficiencies depend primarily on how effectively pay-zones are swept by supercritical steam. Between fairly wide limits, SCWE yields are virtually insensitive to steam flow rates (which only affect extraction rates); and where CO is used to further suppress coke formation, steam:CO ratios are also relatively unimportant. However, the incremental amounts by which H20 + CO
reduces coke formation over H20 alone tend to vary directly with the aromaticity of the bitumen.
..~........
:, . : - -.
:.. : ~ . .. .
:; ,, :
- ~
g~z~
% 'saua~,le ldse ~ ~ ~ ~ ~o ~suoq~o~
n) ~elod a~ ~ ~ G~
U~ ~ ~ suoq~e~ y ~r ~ ~ ~
c )~ eL~e _ _ __ __ 3 9~ suoqle~o ~pi~ll ct) m ct~ cn . ~ ;)~ dlle __ __ ~ .
;~U~ll~dse cn r~ tn 'Suoqle~o~o~ ~ ~ u~ ~ cn r~ cn ~~elod, ~ ~ r~ r~ ~ ~ _ ~ .~
P~s 'suoqleoo~ { u~ ~ cn ~ u~ In ~ -e . ~ . ~
- ~eYdlle ct~ n ~D o co ~ ~ ~1 . c~ ~o r cn n ~ u~ ~ ~ c 'plal.C ~oelyca~ r- co 1~ co co r- ~ ~o ccn~
( a~,ou s )co co o _ cn ~D u~ r~ o co ~ 3 % 'a~_ ~ ~r ~ ~ o _; ' o tZ 3~0U 5)~ cn cn I ~ ~ cn C~l .~
~, 'se6 + 51~0 ~,U,61l C~ O _ _ C~l .
C~O O CO O 1` C-O ~ O er ~D .~ .
~51l ~tl~ I a~ou 51 I ~ ¦ ~1~ 1 cn ~i ~1 % 'ua~lq plsa~o w ~D o u~ r- _ u~ _ cn _ ,~
.
~ O co u~ co ~ O cn ~D ~r ~ ~i U~ 3~e:r d~g~ O ~ ~ ~ _ c~ O _ O
o~e~ ~M 'ZN: 00_ _ ~ . ~ ~ _ ';~
o~e~ ala~ 'oo: OZ~t ~ i ~ I I _ ~i a 88 8 88 ~3 pm~3 ~o~e~x~ ~ ~ m ~ ~ ,~
ec~ ' amssa~d 3i~ ~ ~ ~ ~ ~ 15 ~ ~r ~r 00 'am~e~3~7~ ~o ~ ~ ~r :1 ~r ~ ~r c - ' ou un~ ~~ ~ O ~ ~c~ c~l ,~
. :. ' :
: : . . .,: .' ~, - , . . :- : .
- : .
Claims
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
(1) A method whereby an oil sands or oil shale pay zone, or a heavy oil reservoir, is continuously swept with injected steam at temperatures between 400° and 475°C under pressures between 7 and 21 MPa (equivalent to approximately 1000-3000 psi), and the exiting steam, together with its extract load, is passed through a back-pressure valve into a pressure let-down vessel in which the extracted material and condensed water separate out as two, readily recovered layers.
(2) A method, as in (1), in which the temperature required for extraction with supercritical steam is maintained by supplemental electrical or radio-frequency heating or by combusting part of the in-place bitumen or oil shale organic matter.
(3) A method, as in (1), in which an oil sand or oil shale pay zone, or a heavy oil reservoir, is continuously swept with a mix of steam and carbon monoxide.
(4) A method whereby oil sand bitumen, oil shale organic matter or heavy oil produced by continuous or intermittent injection of steam is passed, together with co-produced water, into a reactor in which suitable conditions for SCWE are established by raising temperatures and pressures; allowed a sufficiently long residence in that reactor; and then taken off through a back-pressure valve into a pressure let-down vessel as in (1).
(5) A method, as in (4), in which carbon monoxide, as well as the produced bitumen, oil shale organic matter or heavy oil and co-produced water, is injected into the reactor.
(6) A method, as in (3) or (4), in which the residence time of the produced mixture in the reactor is adjusted to optimize the extent to which the class composition of the produced bitumen, oil shale organic matter or heavy oil is shifted to lighter, more desirable hydrocarbons or similar moieties.
(1) A method whereby an oil sands or oil shale pay zone, or a heavy oil reservoir, is continuously swept with injected steam at temperatures between 400° and 475°C under pressures between 7 and 21 MPa (equivalent to approximately 1000-3000 psi), and the exiting steam, together with its extract load, is passed through a back-pressure valve into a pressure let-down vessel in which the extracted material and condensed water separate out as two, readily recovered layers.
(2) A method, as in (1), in which the temperature required for extraction with supercritical steam is maintained by supplemental electrical or radio-frequency heating or by combusting part of the in-place bitumen or oil shale organic matter.
(3) A method, as in (1), in which an oil sand or oil shale pay zone, or a heavy oil reservoir, is continuously swept with a mix of steam and carbon monoxide.
(4) A method whereby oil sand bitumen, oil shale organic matter or heavy oil produced by continuous or intermittent injection of steam is passed, together with co-produced water, into a reactor in which suitable conditions for SCWE are established by raising temperatures and pressures; allowed a sufficiently long residence in that reactor; and then taken off through a back-pressure valve into a pressure let-down vessel as in (1).
(5) A method, as in (4), in which carbon monoxide, as well as the produced bitumen, oil shale organic matter or heavy oil and co-produced water, is injected into the reactor.
(6) A method, as in (3) or (4), in which the residence time of the produced mixture in the reactor is adjusted to optimize the extent to which the class composition of the produced bitumen, oil shale organic matter or heavy oil is shifted to lighter, more desirable hydrocarbons or similar moieties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2000251 CA2000251A1 (en) | 1989-10-06 | 1989-10-06 | Method for recovering and partially upgrading bitumen from oil sands, tar sands, oil shales, h eavy oil reservoirs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2000251 CA2000251A1 (en) | 1989-10-06 | 1989-10-06 | Method for recovering and partially upgrading bitumen from oil sands, tar sands, oil shales, h eavy oil reservoirs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2000251A1 true CA2000251A1 (en) | 1991-04-06 |
Family
ID=4143280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2000251 Abandoned CA2000251A1 (en) | 1989-10-06 | 1989-10-06 | Method for recovering and partially upgrading bitumen from oil sands, tar sands, oil shales, h eavy oil reservoirs |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2000251A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611915A (en) * | 1994-03-09 | 1997-03-18 | Exxon Research And Engineering Company | Process for removal of heteroatoms under reducing conditions in supercritical water |
| WO2004065526A2 (en) * | 2003-01-24 | 2004-08-05 | Consejo Superior De Investigaciones Científicas | Method of immobilising hydrocarbons inside submerged containers or of transporting said hydrocarbon to the surface, using the properties of supercritical fluids at a great depth |
| ES2213476A1 (en) * | 2003-01-24 | 2004-08-16 | Consejo Sup. De Invest. Cientificas. | Immobilising or removing hydrocarbons inside sunken tanker ships, by delivering fluid into tank and then degassing the resulting supercritical fluid |
| ES2214974A1 (en) * | 2003-03-14 | 2004-09-16 | Consejo Sup. Investig. Cientificas | Immobilising or removing hydrocarbons inside sunken tanker ships, by delivering fluid into tank and then degassing the resulting supercritical fluid |
| US7947165B2 (en) | 2005-09-14 | 2011-05-24 | Yeda Research And Development Co.Ltd | Method for extracting and upgrading of heavy and semi-heavy oils and bitumens |
| CN109184646A (en) * | 2018-10-29 | 2019-01-11 | 邓晓亮 | Electromagnetic wave heating realizes overcritical hot composite powerful displacement of reservoir oil device and method |
| CN112065343A (en) * | 2020-07-24 | 2020-12-11 | 西安交通大学 | Shale oil development injection and production system and method |
| CN113667507A (en) * | 2021-08-20 | 2021-11-19 | 太原理工大学 | L-shaped columnar organic rock supercritical water and oxygen collaborative pyrolysis device and use method |
| CN115263260A (en) * | 2022-08-19 | 2022-11-01 | 深圳清华大学研究院 | In-situ conversion system and conversion method for supercritical water oxidation of organic-rich rock stratum |
-
1989
- 1989-10-06 CA CA 2000251 patent/CA2000251A1/en not_active Abandoned
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611915A (en) * | 1994-03-09 | 1997-03-18 | Exxon Research And Engineering Company | Process for removal of heteroatoms under reducing conditions in supercritical water |
| WO2004065526A2 (en) * | 2003-01-24 | 2004-08-05 | Consejo Superior De Investigaciones Científicas | Method of immobilising hydrocarbons inside submerged containers or of transporting said hydrocarbon to the surface, using the properties of supercritical fluids at a great depth |
| ES2213476A1 (en) * | 2003-01-24 | 2004-08-16 | Consejo Sup. De Invest. Cientificas. | Immobilising or removing hydrocarbons inside sunken tanker ships, by delivering fluid into tank and then degassing the resulting supercritical fluid |
| WO2004065526A3 (en) * | 2003-01-24 | 2004-09-10 | Consejo Superior Investigacion | Method of immobilising hydrocarbons inside submerged containers or of transporting said hydrocarbon to the surface, using the properties of supercritical fluids at a great depth |
| ES2214974A1 (en) * | 2003-03-14 | 2004-09-16 | Consejo Sup. Investig. Cientificas | Immobilising or removing hydrocarbons inside sunken tanker ships, by delivering fluid into tank and then degassing the resulting supercritical fluid |
| US7947165B2 (en) | 2005-09-14 | 2011-05-24 | Yeda Research And Development Co.Ltd | Method for extracting and upgrading of heavy and semi-heavy oils and bitumens |
| CN109184646A (en) * | 2018-10-29 | 2019-01-11 | 邓晓亮 | Electromagnetic wave heating realizes overcritical hot composite powerful displacement of reservoir oil device and method |
| CN109184646B (en) * | 2018-10-29 | 2023-11-17 | 邓晓亮 | Device and method for realizing supercritical thermal compound powerful oil displacement through electromagnetic wave heating |
| CN112065343A (en) * | 2020-07-24 | 2020-12-11 | 西安交通大学 | Shale oil development injection and production system and method |
| CN113667507A (en) * | 2021-08-20 | 2021-11-19 | 太原理工大学 | L-shaped columnar organic rock supercritical water and oxygen collaborative pyrolysis device and use method |
| CN113667507B (en) * | 2021-08-20 | 2022-09-09 | 太原理工大学 | Device for supercritical water and oxygen collaborative pyrolysis of L-shaped columnar organic rock and use method |
| CN115263260A (en) * | 2022-08-19 | 2022-11-01 | 深圳清华大学研究院 | In-situ conversion system and conversion method for supercritical water oxidation of organic-rich rock stratum |
| CN115263260B (en) * | 2022-08-19 | 2023-09-29 | 深圳清华大学研究院 | In-situ conversion system and conversion method for supercritical water oxidation of organic-rich rock stratum |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4280559A (en) | Method for producing heavy crude | |
| US4501445A (en) | Method of in-situ hydrogenation of carbonaceous material | |
| US4419214A (en) | Process for the recovery of shale oil, heavy oil, kerogen or tar from their natural sources | |
| US3273640A (en) | Pressure pulsing perpendicular permeability process for winning stabilized primary volatiles from oil shale in situ | |
| AU2002304692C1 (en) | Method for in situ recovery from a tar sands formation and a blending agent produced by such a method | |
| US3770398A (en) | In situ coal gasification process | |
| CA1143686A (en) | Solvent extraction method | |
| KR101629753B1 (en) | Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials | |
| US4032193A (en) | Coal disaggregation by basic aqueous solution for slurry recovery | |
| US3941679A (en) | Separation of hydrocarbonaceous substances from mineral solids | |
| US4487264A (en) | Use of hydrogen-free carbon monoxide with steam in recovery of heavy oil at low temperatures | |
| AU2009276283A1 (en) | Method of liquefaction of carbonaceous material to liquid hydrocarbon | |
| US4022277A (en) | In situ solvent fractionation of bitumens contained in tar sands | |
| CA1196594A (en) | Recovery of oil from tar sands | |
| CA1132453A (en) | Oil recovery process | |
| US4153533A (en) | Shale conversion process | |
| US4149597A (en) | Method for generating steam | |
| US4449586A (en) | Process for the recovery of hydrocarbons from oil shale | |
| CA2000251A1 (en) | Method for recovering and partially upgrading bitumen from oil sands, tar sands, oil shales, h eavy oil reservoirs | |
| AU2009340890B2 (en) | Oil shale processing | |
| US4703798A (en) | In situ method for recovering hydrocarbon from subterranean oil shale deposits | |
| US3499490A (en) | Method for producing oxygenated products from oil shale | |
| US3112255A (en) | Process for recovering hydrocarbons from solid materials | |
| US4499949A (en) | Combined surface and in situ tar sand bitumen production | |
| CA1117055A (en) | Process for production of oil from oil sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |