WO2012028910A1 - Synchronised system for the production of crude oil by means of in-situ combustion - Google Patents
Synchronised system for the production of crude oil by means of in-situ combustion Download PDFInfo
- Publication number
- WO2012028910A1 WO2012028910A1 PCT/IB2011/000975 IB2011000975W WO2012028910A1 WO 2012028910 A1 WO2012028910 A1 WO 2012028910A1 IB 2011000975 W IB2011000975 W IB 2011000975W WO 2012028910 A1 WO2012028910 A1 WO 2012028910A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- well
- wells
- combustion
- producing
- synchronizing
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 86
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 239000010779 crude oil Substances 0.000 title claims abstract description 22
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 21
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 41
- 238000000034 method Methods 0.000 description 21
- 239000007789 gas Substances 0.000 description 14
- 238000011084 recovery Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 229930195733 hydrocarbon Natural products 0.000 description 12
- 150000002430 hydrocarbons Chemical class 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 239000004215 Carbon black (E152) Substances 0.000 description 10
- 238000004088 simulation Methods 0.000 description 8
- 238000010408 sweeping Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000001590 oxidative effect Effects 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
-
- 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
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
- E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
-
- 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
- E21B43/243—Combustion in situ
Definitions
- a synchronized crude oil production system using the in-situ combustion process that uses the measurement, monitoring and control of real-time operational conditions comprising at least one injector well (1) and at least one producing well (2) and at least one inclined synchronizing well (3), characterized in that the tip of the at least one producing well (2) and that of the at least one inclined synchronizing well (3) found within the reservoir have the tip of the
- the pipe has an outward orientation with respect to the injector well (1), characterized by comprising measuring, monitoring and control elements where, said measuring and monitoring elements send the signals and information detected by them, to one or more units of processing, joint or independent, that are responsible for evaluating, by an analytical model, the combustion conditions in the well-subsoil system and the advance of the combustion front and, depending on the results, synchronize the production operations, so that each well is operated or manipulated remotely in its control valves in order to influence the direction of travel of the combustion front.
- Heavy crude oil or extra heavy crude oil is any type of crude oil with high densities that does not flow easily. It is called “heavy” because its API gravity is less than 21, 9 0 API.
- the largest heavy oil reserve in the world is located north of the Orinoco River in Venezuela, but it is known that 30 or more countries have reserves of the same type. Canada has large reserves of heavy crude mainly in the provinces of Alberta and Saskatchewan. In this sense, different techniques have been developed in recent decades to efficiently and economically produce such deposits.
- SAGD Steam Assisted Gravity Drainage
- thermal energy allows the displacement of a considerable oil bank from the injector wells to the producing wells, mainly due to the reduction in the viscosity of the oil, the vaporization and the thrust of the gases formed in the combustion process.
- this type of process has existed for many years, it has had some technical-operational difficulties that have discouraged its application, one of them is the control and monitoring of the combustion front, which directly affects the volumetric efficiency of sweeping and, by therefore, the recovery of the existing oil in the field.
- Oxidation The combustion zone acts as a piston that moves fluids in front of the combustion front towards the producers.
- Coking Oxygen combines with oil forming carbon dioxide and heat. The combustion reaction is maintained by injecting air and C0 2 released in the reservoir creates an effect of reducing water relative permeability, minimizing the mobility of this fluid with respect to oil.
- Cracking The thermal cracking causes a deposit of coke in the fire front, generating in some cases, an improvement of the oil in the subsoil, the combustion gases vaporize the water, improve the displacement of the fluids and increase the sweep efficiency of the process.
- the in situ combustion process has several benefits, mainly in reservoirs with high water saturation or direct influence of aquifers with strong hydraulic thrust: benefits due to the improvement of the oil mobility ratio.
- water by reducing the water relative permeability, positively influence gravity segregation by generating a secondary layer of high pressure gas and reduction benefits oil viscosity by heating and miscibility of CO2 generated.
- the saturation of residual oil is reduced and the saturation of irreducible water increases due to the increase in temperature as it has been reported in the oil literature, which increases the oil flow and decreases the water flow.
- the main objective of the present invention is to provide a synchronized system of crude oil production using the in-situ combustion process that has elements of measurement, monitoring and control in real time, of the combustion front and, additionally , contemplate a geometry and type of wells that facilitate and make the management of monitoring and control operations of said combustion front more efficient.
- Another objective of the present invention is to provide a synchronized system of production of crude oil by in-situ combustion that has a type of well identified as an inclined "synchronizer", also equipped with measuring and monitoring elements, which can fulfill different functions within of the system and make the combustion front control operations more efficient.
- the main function of inclined synchronizing wells (3) is not only to produce a larger volume of hydrocarbons, but to complement the functions of measurement, monitoring and control of the combustion front. All this in order to make the process more efficient and obtain a greater recovery of hydrocarbon reserves.
- Figure 1 Representation according to the state of the art of an arrangement for extracting crude oil from a reservoir by in-situ combustion, in which the two main areas of the well-subsoil system and the front that moves from the well are shown. injector 1 towards the horizontal producer 2. The combustion zone C and the area adjacent to the combustion front, non-combustion zone D.
- Figure 2. Top view of an arrangement for extracting crude oil from a reservoir according to the state of the art in which an ideal theoretical displacement is presented for the combustion front of the well-subsoil system from an injector well 1 to the producing wells vertical 2.
- the arrows indicate the direction of the combustion front.
- Figure 3 Top view of an arrangement for extracting crude oil from a reservoir in which one of the many theoretical forms that the combustion front could have in the well-subsoil system, due to the irregular displacement of crude oil.
- This figure seeks to highlight that in real life the combustion front is not homogeneous and this undoubtedly affects the productivity of the process, the volumetric efficiency of sweeping and therefore, the recovery of hydrocarbon reserves.
- the arrows indicate the direction of the combustion front.
- Figure 4a Top view of an arrangement for extracting crude oil from a well-subsoil system according to a first possible embodiment of the invention with producing wells inclined at the instant ti (referential), showing an irregular combustion front, under undesired operational conditions, without applying concepts of Synchronized Operations Management, "GSO" to monitor and control the combustion front and improve the efficiency of displacement or sweeping and recovery of hydrocarbon reserve.
- GSO Synchronized Operations Management
- Figure 4b - top view of an arrangement for removing oil from a well-ground system according to the embodiment presented in figure 4a at time t 2 ( for reference and later in time with respect to ti) showing a front uniform and optimal combustion under desired operational conditions, after the synchronization tasks by monitoring and control of the invention.
- integrated Operations Management concepts have been applied to measure, monitor and control the combustion front.
- the arrows indicate the direction of the combustion front.
- Figure 5. Side view of the interior of the zone X of Figure 4b, where the relative position between the injector wells, inclined producers and synchronizers is observed, where a first possible configuration of the invention is highlighted with producing wells and synchronizers inclined Figure 6.
- FIG. 6 Top view of an arrangement for extracting crude oil from a well-subsoil system according to a second possible embodiment of the invention in which multilateral wells are used, such as producers and strategically located inclined synchronizing wells.
- This configuration of the multilateral producing wells and inclined synchronizers represents the optional configuration of the invention. Note that the direction of the multilateral section of the inclined producing and synchronizing wells is outward, that is, " outward " (by its English name). In this figure the arrows indicate the direction of the combustion front.
- Figure 7. Side view of the interior of zone X of Figure 6, where the relative position between the injector wells, multilateral producers is observed and inclined synchronizers and the optional configuration of the invention is highlighted.
- Figure 8. Top view of an arrangement for extracting crude oil from a well-subsoil system according to the optional modality of the invention showing a uniform and optimal combustion front under desired operational conditions, after the synchronization tasks by monitoring and control of the invention.
- the arrows indicate the direction of the combustion front.
- Figure 9.- Map that represents a reference deposit used to simulate an arrangement according to figure 6 in the invention where several layers, sands, oil from which oil is extracted are represented and the last layer represents a water zone or aquifer and from there is where the main source of water is produced.
- Figure 10. Graph with the production behavior of the synchronizing wells (3a), (3b), (3c) and (3d), according to figure 9, in barrels per day as a function of time, obtained by simulation. These wells are usually useful to support producing wells in the extraction of crude.
- Figure 11. Graph of estimated production of daily barrels as a function of time for multilateral wells 2a, 2b, 2c and 3d product of the referential simulation carried out.
- the present invention proposes a synchronized arrangement of wells in an oil field that allows to measure, monitor and control the parameters of the in-situ combustion front to achieve a more efficient hydrocarbon extraction from the well-subsoil system.
- the in-situ combustion extraction process In order for the in-situ combustion extraction process to be efficient, mainly in reservoirs that have a strong hydraulic thrust, it is necessary to improve the water / oil mobility ratio, by reducing the relative permeability of the water with respect to oil and the reduction in oil viscosity due to the effect of the heat generated in the reservoir, taking advantage of the positive effects of the miscibility of CO 2 in the oil. The result will be, a better efficiency of displacement or volumetric sweeping and therefore, a greater recovery of hydrocarbon reserves.
- a combustion oil recovery system is shown in Figure 2, with an arrangement of 5 inverted wells, which by way of reference, comprises a vertical injector well (1) and four vertical producing wells (2 ).
- the injector well (1) is located inside the arrangement, inside the area defined by the producing wells (2).
- the function of the injector well (1) is to provide air, oxygen or a mixture of oxidizing gases, to displace the oil in its area of influence and maintain the combustion reaction in the reservoir.
- the zone (A) represents the limits of the combustion front within the reservoir and the arrows on it represent the theoretical direction of the front as it advances to reach the producing wells (2) and, in this way, extract the crude of the site.
- zone A In real life, the combustion front does not travel in a homogeneous manner, so that, as time goes by, the shape of zone A generally moves away from being symmetrical.
- a referential example of a combustion oil recovery system is shown in Figure 3 where zone B represents a combustion front close to reality, when no forecasts are taken to control it.
- zone B represents a combustion front close to reality, when no forecasts are taken to control it.
- the combustion front is amorphous and, consequently, the crude oil that is in the vicinity of the producing well (2c) cannot be extracted from the reservoir, considerably affecting the productivity of the producing wells, the volumetric efficiency of sweeping and the recovery of hydrocarbon reserves.
- the synchronized crude oil production system using the in-situ combustion process of the present application proposes: to include elements of measurement, monitoring and control in vertical injection wells (1), producers (2) present in a well arrangement and , in addition, the introduction of a new type of well called "synchronizing well” (3), inclined, which includes, in turn, measuring elements, variables of formation pressure and temperature, among other parameters, at different levels in the well, also, for monitoring and control of the gases generated by the combustion front
- a system according to the invention comprises at least one injector well (1), at least one producing well (2) and at least one synchronizing well (3).
- four inclined synchronizing wells (3) have been included in a referential manner in an arrangement comprising an injector well (1) and four inclined producing wells (2).
- each well (s) injector (1), producers (2) and synchronizers (3) have elements of measurement, monitoring and control of the combustion front (zone B) and these are related to the functions provided Each well in the arrangement. In general, through the injector well
- the inclined synchronizing wells (3) duly instrumented with remote pressure and temperature sensors, among others, will have several functions: First, they will serve as support or support for the wells producers (2) to measure, monitor and control the combustion front, through synchronized operations management; secondly, they will serve as additional producers and, thirdly, they can serve as wells for the removal of unwanted gases in the well-subsoil system, when required. Finally, these inclined synchronizing wells (3) could be converted into oxidizing gas injectors, if the process conditions require it and allow it. Their construction is done in such a way that it is technically feasible to do so (see figures 5 and 7).
- measurement and monitoring elements to be installed are pressure and temperature sensors, which operate in real time from a distance, however, other control elements of the combustion front are not discarded, such as 4D seismic or flow or flow registers. images installed in some or all wells. Said measurement and monitoring elements send the signals and information collected by them to a processing unit, which is responsible for assessing the combustion conditions of the subsoil system and the advance of the combustion front. If the measurements obtained in each type of well are within the desired operational conditions, the injector wells (1), producers (2) and inclined synchronizing wells (3) will continue their basic functions within the arrangement.
- the "Synchronized Operations Management, GSO” process is activated, which consists in synchronizing the production operations in such a way that each well or group of them, is remotely manipulated in its control valves to influence the direction of travel of the combustion front and standardize it.
- GSO Synchronization Operations Management
- These instructions will consist of the synchronized and remote management of the production control valves of said wells, forcing the modification of the production pattern and therefore, the advance of the combustion front, redirecting it towards the desired direction.
- the operator could even send instructions to the injector well to decrease, increase or regulate the amount of oxidizing gas it is injecting into the subsoil system.
- the instructions could also be given to completely close wells, even operate the water injection systems to control any abnormal situation that occurs in a well or in the same reservoir.
- the inclined synchronizing wells (3) can act as relief wells or valves in case the concentration of gases within the reservoir exceeds the permitted values; in that case, the control unit would send an instruction to activate the gas relief or extraction function.
- the number and geometry of the injector (1), producer (2) and synchronizer (3) wells inclined in the arrangement of the system of the invention, will depend on the type of reservoirs, type of arrangements and conditions of exploitation of the reservoir.
- the injector (1), producer (2) and inclined synchronizer (3) wells are in a particular geometric arrangement according to the requirements of the well-subsoil system to be produced.
- each well of the arrangement of Fig. 4a and 4b, whether injector (1), inclined producer (2) or inclined synchronizers (3), will be connected to one or more joint or independent processing units.
- the processing unit is able to interpret the measurements of each well and send the signals so that the operator takes the necessary corrective measures.
- the invention proposes an intelligent measurement, monitoring and control system whose stages include: assessing in real time and constantly the conditions of the in-situ combustion reaction in the well-subsoil system (in different duly identified points of interest), sending the results to the processing unit, analyzing the independent evaluations for each of the wells and, based on the results, automatically determining the corrections necessary for the use of a computer program or computer model Uniform the combustion front.
- the injection wells (1) are vertical
- the production wells (2) are of the inclined type
- the synchronizing wells (3) are inclined as shown in Figure 5.
- This configuration It allows greater coverage of the area of the well-subsoil system to be produced, making the monitoring process and, therefore, the production process more efficient.
- the use of vertical producing wells in general, has the limitation that the function of the well in question is limited to a single point of the well and / or the area adjacent to it.
- this preferential configuration of the invention considers the use of vertical injector wells (1) and inclined producers (2), in order to access a specific region considered relevant to the well-subsoil system.
- synchronizing wells (3) strategically located within the arrangement of the invention, its configuration is inclined, which allows a better position with greater flow area and orientation towards the points inside the well-subsoil system that is they have considered relevant for monitoring.
- the injection wells (1) are vertical
- the production wells (2) are of the multilateral type
- the synchronizing wells (3) are inclined as shown in Figures 6 and 7.
- This configuration allows a greater coverage of the area of the well-subsoil system to be produced, making the monitoring process and, therefore, the production process more efficient.
- This preferential configuration of the invention considers the use of injector wells (1) vertical and producers (2) multilateral, so as to cover a greater area of the subsoil system.
- inclined synchronizing wells (3) strategically located within the arrangement of the invention, its configuration is always inclined, which allows a better position with greater flow area and orientation towards the points inside the well-subsoil system. which have been considered relevant for monitoring.
- the relative position of the synchronizing wells (3) inclined in the arrangement is relatively close to the producing well (2) and, if there is more than one producing well (2), it will preferably be in the area adjacent to the two closest producing wells (2).
- synchronizing wells (3) will be in an equidistant and strategic position from the geological point of view, to the injection well and producing wells (2), and placed inside the Z zone (shown in figures 4a, 4b, 5, 6, 7 and 8).
- producing wells (2) and inclined synchronizers (3) In the case of the producing wells (2) and inclined synchronizers (3), they will be directed so that the tip of the producing wells (2) and that of the inclined synchronizing wells (3) that are within the reservoir it has an outward orientation with respect to the injector well (1), that is, an "outward" orientation.
- producing wells (2) will have a single inclined or multilateral portion, however, they are considered to have a substantially vertical section and / or one or more inclined sections, which will make them multilateral.
- the number of producing wells (2) and inclined synchronizers (3) may vary depending on the characteristics of the reservoir and the situation of existing wells in which the field is at the beginning of the on-site combustion process.
- EXAMPLE NUMERICAL SIMULATION
- CMS STARS numerical simulator of the company CMG in one of the Pacific Rubiales Energy fields.
- STARS includes the multiphase flow of oil, water and gas, heat transfer, compositional changes and chemical physical reactions of kinetics that are considered to occur in the field during in situ combustion.
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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)
- Incineration Of Waste (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/820,056 US20130206384A1 (en) | 2010-08-31 | 2011-05-07 | Synchronised system for the production of crude oil by means of in-situ combustion |
CA2809204A CA2809204C (en) | 2010-08-31 | 2011-05-07 | Synchronized system for the production of crude oil by means of in-situ combustion |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CO10107350A CO6310134A1 (en) | 2010-08-31 | 2010-08-31 | SYNCHRONIZED CRUDE PRODUCTION SYSTEM BY COMBUSTION IN SITU |
CO10-107350 | 2010-08-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012028910A1 true WO2012028910A1 (en) | 2012-03-08 |
Family
ID=44718315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2011/000975 WO2012028910A1 (en) | 2010-08-31 | 2011-05-07 | Synchronised system for the production of crude oil by means of in-situ combustion |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130206384A1 (en) |
CA (1) | CA2809204C (en) |
CO (1) | CO6310134A1 (en) |
WO (1) | WO2012028910A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11286773B2 (en) * | 2020-03-11 | 2022-03-29 | Neubrex Co., Ltd. | Using fiber-optic distributed sensing to optimize well spacing and completion designs for unconventional reservoirs |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3472318A (en) * | 1967-06-29 | 1969-10-14 | Texaco Inc | Hydrocarbon production by secondary recovery |
US4120354A (en) * | 1977-06-03 | 1978-10-17 | Occidental Oil Shale, Inc. | Determining the locus of a processing zone in an in situ oil shale retort by pressure monitoring |
US5016710A (en) * | 1986-06-26 | 1991-05-21 | Institut Francais Du Petrole | Method of assisted production of an effluent to be produced contained in a geological formation |
US5211230A (en) * | 1992-02-21 | 1993-05-18 | Mobil Oil Corporation | Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion |
US5934371A (en) * | 1995-02-09 | 1999-08-10 | Baker Hughes Incorporated | Pressure test method for permanent downhole wells and apparatus therefore |
US6263965B1 (en) * | 1998-05-27 | 2001-07-24 | Tecmark International | Multiple drain method for recovering oil from tar sand |
EP1868748A1 (en) | 2005-04-07 | 2007-12-26 | ARVEDI, Giovanni | Process and system for manufacturing metal strips and sheets without solution of continuity between continuous casting and rolling |
WO2009065840A1 (en) | 2007-11-22 | 2009-05-28 | Siemens Vai Metals Technologies Gmbh & Co | Method for continuous austenitic rolling of a preliminary strip, which is produced in a continuous casting process, and combined casting and rolling facility for performing the method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3997004A (en) * | 1975-10-08 | 1976-12-14 | Texaco Inc. | Method for recovering viscous petroleum |
US7841404B2 (en) * | 2008-02-13 | 2010-11-30 | Archon Technologies Ltd. | Modified process for hydrocarbon recovery using in situ combustion |
-
2010
- 2010-08-31 CO CO10107350A patent/CO6310134A1/en active IP Right Grant
-
2011
- 2011-05-07 CA CA2809204A patent/CA2809204C/en not_active Expired - Fee Related
- 2011-05-07 WO PCT/IB2011/000975 patent/WO2012028910A1/en active Application Filing
- 2011-05-07 US US13/820,056 patent/US20130206384A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3472318A (en) * | 1967-06-29 | 1969-10-14 | Texaco Inc | Hydrocarbon production by secondary recovery |
US4120354A (en) * | 1977-06-03 | 1978-10-17 | Occidental Oil Shale, Inc. | Determining the locus of a processing zone in an in situ oil shale retort by pressure monitoring |
US5016710A (en) * | 1986-06-26 | 1991-05-21 | Institut Francais Du Petrole | Method of assisted production of an effluent to be produced contained in a geological formation |
US5211230A (en) * | 1992-02-21 | 1993-05-18 | Mobil Oil Corporation | Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion |
US5934371A (en) * | 1995-02-09 | 1999-08-10 | Baker Hughes Incorporated | Pressure test method for permanent downhole wells and apparatus therefore |
US6263965B1 (en) * | 1998-05-27 | 2001-07-24 | Tecmark International | Multiple drain method for recovering oil from tar sand |
EP1868748A1 (en) | 2005-04-07 | 2007-12-26 | ARVEDI, Giovanni | Process and system for manufacturing metal strips and sheets without solution of continuity between continuous casting and rolling |
WO2009065840A1 (en) | 2007-11-22 | 2009-05-28 | Siemens Vai Metals Technologies Gmbh & Co | Method for continuous austenitic rolling of a preliminary strip, which is produced in a continuous casting process, and combined casting and rolling facility for performing the method |
Also Published As
Publication number | Publication date |
---|---|
CO6310134A1 (en) | 2011-08-22 |
CA2809204C (en) | 2017-02-28 |
US20130206384A1 (en) | 2013-08-15 |
CA2809204A1 (en) | 2012-03-08 |
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