Foam assisted liquid removal using alcohol ether sulfonates
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-037/06
C09K-008/94
C09K-008/60
C09K-008/86
E21B-043/16
E21B-043/12
C09K-008/584
C09K-008/594
출원번호
US-0057772
(2016-03-01)
등록번호
US-9862882
(2018-01-09)
발명자
/ 주소
Huang, Fenfen
Nguyen, Duy T.
출원인 / 주소
Ecolab USA Inc.
대리인 / 주소
Senniger Powers LLP
인용정보
피인용 횟수 :
0인용 특허 :
8
초록
A composition comprising an alcohol ether sulfonate is provided for use in methods of removing a fluid from a subterranean hydrocarbon-containing formation.
대표청구항▼
1. A method of removing a fluid from a gas or oil well, a wellbore, or a pipeline, the method comprising: introducing a composition into a gas well, an oil well, a wellbore, or a pipeline in an amount effective for foaming a fluid within the well, the wellbore, or the pipeline to recover the fluid f
1. A method of removing a fluid from a gas or oil well, a wellbore, or a pipeline, the method comprising: introducing a composition into a gas well, an oil well, a wellbore, or a pipeline in an amount effective for foaming a fluid within the well, the wellbore, or the pipeline to recover the fluid from the well or the pipeline, the fluid comprising a hydrocarbon, water or a combination thereof, and the composition comprising an alcohol ether sulfonate having formula I: wherein: R1 is alkyl;R2 is alkylene;R3 and R4 are each independently ethylene or propylene;R5 is hydroxyl and R6 is —SO3M, or R5 is —SO3M and R6 is hydroxyl;M is independently an alkali metal, an alkaline earth metal, hydronium, NH3 or NH2; anda and b are each independently an integer from 0 to 30, and a+b equals 1 to 60. 2. The method of claim 1, wherein the alcohol ether sulfonate has the formula II wherein: R3 is isopropylene and R4 is ethylene, or R3 is ethylene and R4 is isopropylene;R5 is hydroxyl and R6 is —SO3M, or R5 is —SO3M and R6 is hydroxyl;M is independently Na, K, Ca, Mg, hydronium, NH3 or NH2;x and y are each independently an integer from 0 to 27, and x+y equals 5 to 27; anda and b are each independently an integer from 0 to 30, and a+b equals 1 to 60. 3. The method of claim 1, wherein R3 is isopropylene and R4 is ethylene. 4. The method of claim 1, wherein R5 is hydroxyl and R6 is —SO3M. 5. The method of claim 1, wherein R5 is —SO3M and R6 is hydroxyl. 6. The method of claim 2, wherein the alcohol ether sulfonate has the formula II, x and y are each independently an integer from 0 to 15, and x+y equals 5 to 15. 7. The method of claim 2, wherein a is 2 to 25, b is 2 to 25, and a+b equals 4 to 50. 8. The method of claim 2, wherein a is 3 to 20, b is 6 to 20, and a+b equals 9 to 40. 9. The method of claim 2, wherein a is 5 to 18, b is 10 to 12, and a+b equals 15 to 30. 10. The method of claim 1, wherein the composition further comprises a carrier comprised of water, an alcohol, an ether, a glycol, a glycol ether, or a combination thereof. 11. The method of claim 1, wherein the carrier comprises methanol, ethanol, isopropanol, butoxyethanol, ethylene glycol, propylene glycol, methyl ether ethylene glycol, naphtha, diesel, toluene, ethylenebenzene, ethylene glycol monobutyl ether, xylene, or a combination thereof. 12. The method of claim 1, further comprising injecting an additional anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, or a zwitterionic surfactant into the well, the wellbore or the pipeline. 13. The method of claim 1, further comprising injecting a corrosion inhibitor, a scale inhibitor, an emulsifier, a water clarifier, a dispersant, an emulsion breaker, a hydrogen sulfide scavenger, a gas hydrate inhibitor, a biocide, a pH modifier, a synergistic compound, an asphaltene inhibitor, a paraffin inhibitor, an antioxidant, a pour point depressant, a viscosity modifier, a flow back aid, a friction reducer, a crosslinking agent, or a proppant into the well, the wellbore or the pipeline. 14. The method of claim 1, wherein the well or wellbore is within a subterranean hydrocarbon-containing formation comprising a sandstone reservoir or a carbonate reservoir. 15. The method of claim 1, further comprising injecting a gas into the well, the wellbore or the pipeline. 16. The method of claim 15, wherein the gas comprises nitrogen, carbon dioxide, methane, ethane, propane, butane, natural gas, produced gas, or a combination thereof. 17. The method of claim 1, wherein the composition is injected into the well, the wellbore or the pipeline as a batch addition. 18. The method of claim 1, wherein the composition is continuously injected into the well, the wellbore or the pipeline when the well, the wellbore or the pipeline is in operation. 19. The method of claim 1, wherein the hydrocarbon comprises oil or natural gas condensate. 20. The method of claim 1, wherein the alcohol ether sulfonate is added to the fluid in a concentration of from about 10 to about 100,000 ppm based on volume of the fluid. 21. The method of claim 20, wherein the alcohol ether sulfonate is added to the fluid in a concentration of from about 100 to about 50,000 ppm based on volume of the fluid.
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이 특허에 인용된 특허 (8)
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