Method and system for recovering oil from an oil-bearing formation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-043/40
E21B-043/16
E21B-043/38
출원번호
US-0205514
(2014-03-12)
등록번호
US-9470080
(2016-10-18)
발명자
/ 주소
Kommepalli, Hareesh Kumar Reddy
Shapiro, Andrew Philip
Anderson, Todd Alan
Wang, Hua
출원인 / 주소
General Electric Company
대리인 / 주소
Coppa, Francis T.
인용정보
피인용 횟수 :
1인용 특허 :
10
초록▼
A system and a method for recovering oil from an oil-bearing formation wherein the method includes providing a reverse osmosis (RO) unit comprising at least one membrane; feeding a first feed stream having a first salinity content to a first side of the membrane; and feeding a second feed stream hav
A system and a method for recovering oil from an oil-bearing formation wherein the method includes providing a reverse osmosis (RO) unit comprising at least one membrane; feeding a first feed stream having a first salinity content to a first side of the membrane; and feeding a second feed stream having a second salinity content to a second side of the membrane. The method further includes discharging a retentate stream from the first side of the membrane, and discharging a product stream having a controlled salinity content from the second side of the membrane. The method furthermore includes injecting at least a portion of the product stream into the oil-bearing formation, and recovering at least a portion of the oil from the oil-bearing formation.
대표청구항▼
1. A method for recovering oil from an oil-bearing formation, comprising: (i) providing a reverse osmosis (RO) unit comprising at least one membrane having a first side and a second permeate side opposite the first side;(ii) feeding a first feed stream having a first salinity content to the first si
1. A method for recovering oil from an oil-bearing formation, comprising: (i) providing a reverse osmosis (RO) unit comprising at least one membrane having a first side and a second permeate side opposite the first side;(ii) feeding a first feed stream having a first salinity content to the first side of the membrane;(iii) feeding a second feed stream having a second salinity content to the second permeate side of the membrane wherein the first feed stream that passes through the membrane is mixed with the second feed stream on the second permeate side of the membrane to form a product stream;(iv) discharging a retentate stream from the first side of the membrane;(v) discharging the product stream having a controlled salinity content from the second permeate side of the membrane;(vi) injecting at least a portion of the product stream into the oil-bearing formation; and recovering at least a portion of the oil from the oil-bearing formation. 2. The method of claim 1, further comprising adjusting at least one of the first salinity content, the second salinity content, a flow rate of the first feed stream, and a flow rate of the second feed stream, to produce the product stream having the controlled salinity content. 3. The method of claim 2, further comprising adjusting one or both of the flow rate of the first feed stream and the flow rate of the second feed stream by using a splitting mechanism configured to split a feed stream into the first feed stream and the second feed stream. 4. The method of claim 3, further comprising generating a feed stream from a pre-treatment unit and splitting the feed stream into the first feed stream and the second feed stream. 5. The method of claim 4, wherein the pre-treatment unit is selected from the group consisting of a micro-filtration unit, an ultra-filtration unit, a nano-filtration unit, a media filtration unit, and combinations thereof. 6. The method of claim 1, further comprising generating the first feed stream using a first pre-treatment unit and generating the second feed stream using a second pre-treatment unit. 7. The method of claim 6, wherein the first pre-treatment unit and the second pre-treatment unit are independently selected from the group consisting of a micro-filtration unit, an ultra-filtration unit, a nano-filtration unit, a media filtration unit, and combinations thereof. 8. The method of claim 1, wherein the first salinity content is in a range from about 10,000 parts per million (ppm) to about 60,000 ppm. 9. The method of claim 1, wherein the second salinity content is in a range from about 10,000 parts per million (ppm) to about 60,000 ppm. 10. The method of claim 1, wherein the controlled salinity content is in a range from about 500 ppm to about 30000 ppm. 11. The method of claim 1, wherein a dilution factor in the RO unit is in a range from about 1 to about 50. 12. A method for recovering oil from an oil-bearing formation, comprising: (i) providing a reverse osmosis (RO) unit comprising at least one membrane having a first side and a second permeate side opposite the first side;(ii) generating a feed stream from a pre-treatment unit and splitting the feed stream into a first feed stream having a first salinity content and a second feed stream having a second salinity content;(iii) feeding the first feed stream to the first side of the membrane and feeding the second feed stream to the second permeate side of the membrane wherein the first feed stream that passes through the membrane is mixed with the second feed stream on the second permeate side of the membrane to form a product stream;(iv) discharging a retentate stream from the first side of the membrane;(v) discharging the product stream having a controlled salinity content from the second side of the membrane, wherein the salinity content of the product stream is controlled by adjusting one or both of the flow rate of the first feed stream and the flow rate of the second feed stream;(vi) injecting at least a portion of the product stream into the oil-bearing formation; and(i) recovering at least a portion of the oil from the oil-bearing formation. 13. A system for recovering oil from an oil-bearing formation, comprising a desalination apparatus fro producing a product stream with a controlled salinity content, the desalination apparatus comprising at least one reverse osmosis (RO) unit, comprising: (i) at least one RO membrane having a first side and a second permeate side opposite the first side;(ii) a first inlet configured to receive a first feed stream having a first salinity content on the first side of the membrane;(iii) a second inlet configured to receive a second feed stream having a second salinity content on the second permeate side of the membrane whereby the first feed stream that passes through the membrane is mixed with the second feed stream on the second permeate side of the membrane to form a product stream;(iv) a first discharge outlet configured to discharge a retentate stream from the first side of the membrane; and(v) a second discharge outlet configured to discharge the product stream having the controlled salinity content from the second permeate side of the membrane, wherein the second discharge outlet is fluidly connected to an injection unit that is configured to inject at least a portion of the product stream to the oil-bearing formation. 14. The system of claim 13, further comprising a pre-treatment unit fluidly connected with the first inlet and the second inlet, wherein the pre-treatment unit is configured to supply the first feed stream to the first inlet and the second feed stream to the second inlet. 15. The system of claim 14, wherein the pre-treatment unit is configured to generate a feed stream, and wherein the desalination apparatus further comprises a splitting mechanism configured to split the feed stream into the first feed stream and the second feed stream. 16. The system of claim 15, wherein the splitting mechanism is configured to control a flow rate of the first feed stream and the second feed stream. 17. The system of claim 13, wherein the desalination apparatus further comprises a first pre-treatment unit fluidly connected with the first inlet, wherein the first pre-treatment unit is configured to generate and supply the first feed stream to the first inlet. 18. The system of claim 17, wherein the first pre-treatment unit is independently selected from the group consisting of a micro-filtration unit, an ultra-filtration unit, a nano-filtration unit, a media filtration unit, and combinations thereof. 19. The system of claim 13, wherein the desalination apparatus further comprises a second pre-treatment unit fluidly connected with the second inlet, wherein the second pre-treatment unit is configured to generate and supply the second feed stream to the second inlet. 20. The system of claim 19, wherein the second pre-treatment unit is independently selected from the group consisting of a micro-filtration unit, an ultra-filtration unit, a nano-filtration unit, and combinations thereof.
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이 특허에 인용된 특허 (10)
Arnold,John W.; Elyanow,Irving D.; Carson,William W., Branched flow filtration and system.
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