Method and system for the recovery of oil, using water that has been treated 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
US2016304768 A1 2016-10-20 [US20160304768] / 2016-10-20
申请号/申请日
2014US-15033507 / 2014-09-30
发明人
MOGENSEN KRISTIAN;BENNETZEN MARTIN VAD;
申请人
MAERSK OLIE GAS;
主分类号
IPC分类号
B03C-001/015B03C-001/28B03C-001/30C09K-008/66E21B-043/20E21B-043/26
摘要
(US20160304768) A method of depleting a given analyte 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 analyte from a water source, said method comprising contacting a water source with a superparamagnetic or paramagnetic nanoparticle; complexing the analyte with the particle; and removing the analyte-particle complex by applying a magnetic field so as to provide a water source with depleted analyte content.  The depleted water can then be pumped into one or more connecting injection well(s) in an oil field pushing the crude oil 10 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-0070544 2013-09-30 2014WO-EP70892 2014-09-30
主权利要求
(US20160304768) 1. A method for recovering crude oil or natural gas from the ground, the method comprises the steps of: (i) providinq a water source;   (ii) capturing one or more analyte(s) from the water source by contacting the water source with a superparamagnetic or paramagnetic particle capable of binding the one or more analyte(s) present in the water source providing a capturing mixture;   (iii) removing the analyte(s) 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 analyte is a compound, a mineral, one or more elements or ions, a bacteria, phosphate pollutants, nitrates, sulphate and/or pollutants from detergent use, pesticide use or fertilizer use. 3. The method according to claim 1, wherein the diameter of superparamagnetic or paramagnetic particles are between 1 nm-10 mu m, preferably the superparamagnetic or paramagnetic particles are superparamagnetic nanoparticles of size in the range of 1-1000 nm. 4. The method according to claim 3, wherein the particle size of the nano particles is in the range of 1-600 nm, such as in the range of 3-500 nm, e.g. in the range of 5-300 nm, e.g. in the range of 7.5-200 nm, such as in the range of 10-100 nm, e.g. in the range of 15-50 nm. 5. The method according to claim 1, wherein the weight of superparamagnetic or paramagnetic particle capable of binding the one or more analyte(s) present in the water source does not exceed 0.5 kg per 1.000 kg water (i.e. 0.05 wt %) independent of the size of the particle. 6. The method according to claim 1, wherein the weight of superparamagnetic or paramagnetic particle capable of binding the one or more analyte(s) present in the water source is at least 250 kg water/ern" particles. 7. The method according to claim 1, wherein the superparamagnetic or paramagnetic particle is capable of binding the one or more analyte(s) present in the water source by non-specific binding or by specific binding. 8. The method according to claim 1, wherein the superparamagnetic or paramagnetic particles are coated with an organic compound or an inorganic compound. 9. The method according to claim 1, wherein the superparamagnetic or paramagnetic particles are coated with a polymer, such as a polysaccharide, an alginate, a chitosan, a PEG, a dextran or a polyethyleneamine. 10. 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 analyte(s) present in the water source. 11. The method according to claim 1, wherein the water source is selected from seawater, water from an estuary, brackish water, or generally untreated water having a salinity above 0.05%. 12. The method according to claim 1, wherein the water source is sea water or brackish water having a salinity above 2% and below 5%, normally around 3.5%. 13. The method according to claim 1, wherein the water source has a salinity of less than 250.000 ppm. 14. 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. 15. The method according to claim 1, wherein steps (i), (ii) and (iii) are a continuous process of providing water depleted in the particular analyte(s). 16. The method according to claim 1, wherein the water has been depleted in at least one particular analyte(s), such as at least two particular analytes, e.g. at least three particular analytes, such as at least four particular analytes. 17. The method according to claim 1, wherein the depleted water is used for water flooding, or as hydraulic fluid for fracturing processes. 18. A system for recovering of crude oil comprising a water treatment plant, one or more injection well(s) and one or more oil production well(s), wherein the water treatment plant comprises at least two regions, a reaction region where superparamagnetic or paramagnetic particles will bind to the analyte(s) 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 wells are further connected to the one or more oil production well(s). 19. The system according to claim 18, wherein the reaction region is provided with rigid walls of non-metallic material such as plastic. 20. The system according to claim 18, 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). 21. The system according to claim 18, 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 analytes. 22. The system according to claim 18, 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. 23. The system according to claim 18, wherein the water treatment plant is placed onshore whereas the oil production well and injection wells are placed offshore.
法律状态
(US20160304768) LEGAL DETAILS FOR US2016304768  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 US15033507  Application date=2014-09-30  Standardized application number=2014US-15033507     Event publication date=2016-07-19  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:MOGENSEN, KRISTIAN BENNETZEN, MARTIN VAD REEL/FRAME:039188/0570     Event publication date=2016-10-20  Event code=US/A1  Event type=Examination events  Application published  Publication country=US  Publication number=US2016304768  Publication stage Code=A1  Publication date=2016-10-20  Standardized publication number=US20160304768
专利类型码
A1
国别省市代码
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