Method and system for the enhanced recovery of oil, using water that has been depleted in ions using magnetic particles 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
US2016264846 A1 2016-09-15 [US20160264846] / 2016-09-15
申请号/申请日
2014US-15033495 / 2014-09-30
发明人
BENNETZEN MARTIN VAD;MOGENSEN KRISTIAN;
申请人
MAERSK OLIE GAS;
主分类号
IPC分类号
C09K-008/58E21B-043/20E21B-043/26
摘要
(US20160264846) A method of depleting an ion from a water source is provided.  The method is applicable to water used in oil recovery, water used in natural gas recovery, the treatment of water wells, and for water used in hydraulic fluids for fracturing processes, such as water to be used in proppants or fracking fluids.  The method involves depleting an ion from a water source, said method comprising contacting a water source with a superparamagnetic or paramagnetic nanoparticle; complexing the ion with the particle; and removing the ion-particle complex by applying a magnetic field so as to provide a water source with depleted ion content.  The depleted water can then be pumped into one or more connecting injection well(s) in an oil field pushing the crude oil towards one or more production well(s) thereby allowing for enhanced oil recovery from the production wells.
机翻摘要
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地址
代理人
代理机构
;
优先权号
2013DK-0070543 2013-09-30 2014WO-EP70891 2014-09-30
主权利要求
(US20160264846) 1. A method for recovering crude oil from a hydrocarbon-bearing reservoir by water flooding, the method comprises the steps of: (i) providing a water source;   (ii) capturing one or more ions from the water source by contacting the water source with a superparamagnetic or paramagnetic particle capable of binding the one or more ions present in the water source providing a capturing mixture;   (iii) removing the ions bound to the superparamagnetic or paramagnetic particles from the capturing mixture by applying a magnetic field providing a depleted water;   (iv) pumping the depleted water into one or more connecting injection well(s) in an oil field pushing the crude oil towards one or more production well(s);   (v) recovering the crude oil from the one or more production well(s). 2. The method according to claim 1, wherein the superparamagnetic or paramagnetic particles are coated with an inorganic compound. 3. The method according to claim 1, wherein the superparamagnetic or paramagnetic particles are at least partially coated with silica including derivatized silica. 4. The method according to claim 1, wherein the superparamagnetic or paramagnetic particles are functionalized with a moiety capable of specifically binding the one or more ions present in the water source. 5. The method according to claim 1, wherein the functionalization adapted to complex the particle to ions consists of a linked ion sequester or chelating agent. 6. The method according to claim 1, wherein the functionalization adapted to complex the particle to ions consists of functionalization with an ion sequester selected from the group consisting of diamines, porphyrins, triazole-containing molecules, proteins, peptides, polymers, nucleic acids, RNA, and DNA, including EDTA, EGTA, DTPA and BAPTA. 7. The method according to claim 1, wherein a moiety capable of specifically binding the one or more ions present in the water source is a chelating agent. 8. The method according to claim 1, wherein particles are superparamagnetic and non-functionalized magnetite particles. 9. The method according to claim 8, wherein pH of step (ii) is adjusted and deviates from neutral i.e. deviates from pH=7.0. 10. The method according to claim 9, wherein pH of step (ii) is adjusted either to above 8 or to below 5.0. 11. The method according to claim 1, wherein the water source is an untreated water source e.g. selected from seawater, water from an estuary, or brackish water having a salinity above 0.05% (500 ppm). 12. The method according to claim 1, wherein the water source is sea water having a salinity above 2% (20000 ppm) and below 4% (40000 ppm), normally around 3.5% (35000 ppm). 13. The method according to claim 1, wherein the water source is in any form of untreated or pre-treated water, e.g. treated by reverse osmosis, nano- filtration, vapour distillation, or freezing desalination. 14. The method according to claim 1, wherein the water source has a salinity of less than 250.000 ppm. 15. The method according to claim 1, wherein the water source in the capturing in step (ii) and/or the removing in step (iii) has a temperature in the range 4-60 deg. C., preferably in the range of 4-40 deg. C. and/or has a pressure in the range 1-200 atm. 16. The method according to claim 1, wherein steps (i), (ii) and (iii) are a continuous process of providing water depleted in the particular ions. 17. The method according to claim 1, wherein the water has been depleted in at least one particular ion, such as at least two particular ions, e.g. at least three particular ions, such as at least four particular ions. 18. The method according to claim 1, wherein the ion is a cation. 19. The method according to claim 1, wherein the ion is an anion. 20. A system for recovering crude oil from a hydrocarbon-reservoir comprising a water treatment plant, an injection well and an oil production well, wherein the water treatment plant comprises at least two regions, a reaction region where superparamagnetic or paramagnetic particles will bind to ions and a holding region holding ready-to-bind superparamagnetic or paramagnetic particles,   the reaction region is connected to the holding region allowing addition of superparamagnetic or paramagnetic particles to the reaction region, the reaction region further has an inlet for untreated water, an outlet for treated water and is provided with means for mixing and means for applying a magnetic field,   the reaction tank outlet for treated water is connected with the one or more injection well(s) which injection well(s) are further connected to the one or more oil production well(s). 21. The system according to claim 20, wherein the reaction region is provided with rigid walls of non-metallic material such as plastic. 22. The system according to claim 20, wherein the water treatment plant comprises a third region in form of one or more storage compartments where the reaction tank outlet for treated water is connected to one or more storage compartments which storing compartments are then connected with the injection well(s). 23. The system according to claim 20, wherein the water treatment plant further comprises a separation region where superparamagnetic or paramagnetic particles are regenerated from the mixture of superparamagnetic or paramagnetic particles bonded to ions. 24. The system according to claim 20, wherein the one or more storage compartments of the third region is dimensioned to hold at least the amount to be used in the injection well(s) during the residence time of the reaction region. 25. The system according to claim 20, wherein the water treatment plant is placed onshore. 26. Use of water depleted in one or more ions for recovering oil by water flooding, wherein the depletion of one or more ions from water is performed by capturing the one or more ions from a water source by contacting the water source with superparamagnetic or paramagnetic particles capable of binding the one or more ions present in the water source providing a capturing mixture followed by removing the ions bound to the superparamagnetic or paramagnetic particles from the capturing mixture by applying a magnetic field providing a water reduced in one or more ions. 27. Use according to claim 26, wherein the superparamagnetic or paramagnetic particles are functionalized with a moiety capable of specifically binding the ions present in the water source.
法律状态
(US20160264846) LEGAL DETAILS FOR US2016264846  Actual or expected expiration date=2034-09-30    Legal state=ALIVE    Status=PENDING     Event publication date=2014-09-30  Event code=US/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=US US15033495  Application date=2014-09-30  Standardized application number=2014US-15033495     Event publication date=2016-07-12  Event code=US/AS  Event type=Change of name or address  Event type=Reassignment  Assignment OWNER: MAERSK OLIE OG GAS A/S, DENMARK  Effective date of the event=2016-05-26  ASSIGNMENT OF ASSIGNORS INTEREST ASSIGNORS:BENNETZEN, MARTIN VAD MOGENSEN, KRISTIAN REEL/FRAME:039136/0267     Event publication date=2016-07-12  Event code=US/AS  Event type=Change of name or address  Event type=Reassignment  Assignment OWNER: MAERSK OLIE OG GAS A/S, DENMARK  Effective date of the event=2016-05-26  ASSIGNMENT OF ASSIGNORS INTEREST ASSIGNORS:BENNETZEN, MARTIN VAD MOGENSEN, KRISTIAN REEL/FRAME:039136/0267     Event publication date=2016-09-15  Event code=US/A1  Event type=Examination events  Application published  Publication country=US  Publication number=US2016264846  Publication stage Code=A1  Publication date=2016-09-15  Standardized publication number=US20160264846
专利类型码
A1
国别省市代码
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