发明名称 |
POLYMER COMPOSITIONS |
摘要 |
Embodiments of a polymer composition are disclosed for use in enhancing the production of oil from a formation. In one embodiment, the composition includes a powder polymer having an average molecular weight of 0.5 to 30 Million Daltons suspended in a water soluble solvent having an HLB of greater than or equal to 8 and selected from the group of surfactants, glycol ethers, alcohols, co-solvents, and mixtures thereof, at a weight ratio of powder polymer to water soluble solvent ranging from 20:80 to 80:20. The polymer composition is substantially anhydrous. The polymer composition is hydrated in an aqueous fluid for an injection solution in less than or equal to 4 hours containing a polymer concentration ranging from 100 ppm to 50,000 ppm and having a filter ratio of less than or equal to 1.5 at 15 psi using a 1.2 μm filter. |
申请公布号 |
US2016122622(A1) |
申请公布日期 |
2016.05.05 |
申请号 |
US201514927069 |
申请日期 |
2015.10.29 |
申请人 |
Chevron U.S.A. Inc. |
发明人 |
Dwarakanath Varadarajan;Dean Robert M.;Kim Do Hoon;Alexis Dennis Arun;Thach Sophany;Malik Taimur;Poulsen Anette |
分类号 |
C09K8/588 |
主分类号 |
C09K8/588 |
代理机构 |
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代理人 |
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主权项 |
1. A polymer composition for use in enhancing the production of oil from a formation, the composition comprising:
a powder polymer having an average molecular weight of 0.5 to 30 Million Daltons suspended in a water soluble solvent having an HLB of greater than or equal to 8 and selected from the group of surfactants, glycol ethers, alcohols, co-solvents, and mixtures thereof, at a weight ratio of powder polymer to water soluble solvent ranging from 20:80 to 80:20; and wherein the polymer composition is substantially anhydrous; wherein the polymer composition is hydrated in an aqueous fluid for an injection solution in less than or equal to 4 hours containing a polymer concentration ranging from 100 ppm to 50,000 ppm and having a filter ratio of less than or equal to 1.5 at 15 psi using a 1.2 μm filter. |
地址 |
San Ramon CA US |