Method and composition for forming water impermeable barrier
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09K-003/00
C09K-007/02
출원번호
US-0969680
(1997-11-13)
발명자
/ 주소
Hessert, James E.
Wallace, D. Daniel
DeLong, Jimmy D.
Neef, Charles J.
출원인 / 주소
Wallace, Inc.
대리인 / 주소
Peterson, Gary
인용정보
피인용 횟수 :
135인용 특허 :
41
초록▼
A swellable polymer gel composition for use in subterranean formations. The composition comprises water, a water soluble polymer, a water soluble crosslinking system and a swelling agent. The crosslinking system may be either a redox system or a chelating system. The amounts of the polymer and the c
A swellable polymer gel composition for use in subterranean formations. The composition comprises water, a water soluble polymer, a water soluble crosslinking system and a swelling agent. The crosslinking system may be either a redox system or a chelating system. The amounts of the polymer and the crosslinking system are effective to form a substantially uniformly reacted tri-dimensional gel structure. To the gel solution, is added a swelling agent in an amount sufficient to increase the volume of the gel a predetermined percentage. The swelling agent may be a natural or a synthetic agent. A strengthening agent may be added to increase the gel strength of the composition. The composition has numerous uses and is particularly useful in oil industry applications such as plugging wells, sealing casing leaks and reducing water production from water-bearing hydrocarbon formations. The composition is economically produced, preserves the wellbore for future reentry in plugging operations, inhibits corrosion of casing by the hydration of water, inhibits the leaching of hazardous metal into the environment, and continuously expands in the presence of water.
대표청구항▼
A swellable polymer gel composition for use in subterranean formations. The composition comprises water, a water soluble polymer, a water soluble crosslinking system and a swelling agent. The crosslinking system may be either a redox system or a chelating system. The amounts of the polymer and the c
A swellable polymer gel composition for use in subterranean formations. The composition comprises water, a water soluble polymer, a water soluble crosslinking system and a swelling agent. The crosslinking system may be either a redox system or a chelating system. The amounts of the polymer and the crosslinking system are effective to form a substantially uniformly reacted tri-dimensional gel structure. To the gel solution, is added a swelling agent in an amount sufficient to increase the volume of the gel a predetermined percentage. The swelling agent may be a natural or a synthetic agent. A strengthening agent may be added to increase the gel strength of the composition. The composition has numerous uses and is particularly useful in oil industry applications such as plugging wells, sealing casing leaks and reducing water production from water-bearing hydrocarbon formations. The composition is economically produced, preserves the wellbore for future reentry in plugging operations, inhibits corrosion of casing by the hydration of water, inhibits the leaching of hazardous metal into the environment, and continuously expands in the presence of water. e having a coefficient of linear expansion within ±30% of that of a GaAs substrate of the semiconductor laser; forming a silicon nitride (SiNx,or Si3N4) film on the aluminum oxide film by the method of ECR sputtering; forming a silicon oxide (SiO2) film on the silicon nitride film by a method of Electron Cyclotron Resonance (ECR) sputtering, and forming an amorphous silicon (α-Si) film on the silicon oxide film by a method of Electron Cyclotron Resonance (ECR) sputtering. SUB>R10,or CN, where j is an integer from 0 to 3; R1and R5can each, independently, be selected from the group consisting of H, R11,OC(O)R11,NO2,NHC(O)R11,Cl, Br, I, F, CHO, C(O)R11,C(N--OH)NH2,OPO3R10,OPO2(CH2)jCH3,CH2PO3R10,OSO3R10,OSO2(CH2)jCH3,CH2SO3R10,or CN, where j is an integer from 0 to 3; wherein R2or R4=H, R11,OC(O)R11,NO2,NHC(O)R11,Cl, Br, I, F, CHO, C(O)R11,C(N--OH)NH2,OPO3R10,OPO2(CH2)jCH3,CH2PO3R10,OSO3R10,OSO2(CH2)jCH3,CH2SO3R10,CN, where j is an integer from 0 to 3, (CR12=CR12)kCN, and (CR12=CR12)kNO2,where k is an integer from 1 to 3 or wherein, R6,R7,and R8can each independently, be selected from the group consisting of H, N3,R11,NO2,NHC(=NH)N(R10)2,NHC(O)R11,Cl, Br, I, F, SR10,and (CH2)xC(=NH)N(R10)2where x is an integer from 0 to 3; wherein R9is: 1) OR10and R10is C(CH3)3,CH(CH3)2,CH2CH(CH3)2
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이 특허에 인용된 특허 (41)
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Blauch,Matthew E.; Nguyen,Philip D.; Welton,Thomas D., Methods for improving proppant pack permeability and fracture conductivity in a subterranean well.
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Savery, Mark R.; Santra, Ashok K.; Todd, Bradley L., Methods of directional drilling and forming kickoff plugs using self-degrading cement in subterranean well bores.
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Justus,Donald; Todd,Bradley L.; Nguyen,Philip D., Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures.
Dalrymple, Eldon D.; Eoff, Larry S.; van Batenburg, Diederik W.; van Eijden, Jip, Sealant composition comprising a gel system and a reduced amount of cement for a permeable zone downhole.
Savery,Mark R.; Todd,Bradley L., Self-degrading cement compositions and methods of using self-degrading cement compositions in subterranean formations.
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