- 专利标题: METHOD OF USING MULTICARBOXYLATE COMPOSITIONS IN ENHANCED OIL RECOVERY
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申请号: US16259247申请日: 2019-01-28
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公开(公告)号: US20190153299A1公开(公告)日: 2019-05-23
- 发明人: Robert George SHONG , Varadarajan DWARAKANATH , Gregory A. WINSLOW , Sophany THACH
- 申请人: Chevron U.S.A. Inc.
- 主分类号: C09K8/584
- IPC分类号: C09K8/584 ; C09K8/588 ; C07C59/305 ; E21B43/16
摘要:
The present disclosure relates to the use of a multicarboxylate, such as an alkyl alkoxy dicarboxylate, in enhanced oil recovery processes. Embodiments relate to an aqueous stream and the use thereof. The aqueous stream includes a compound having the chemical formula: R1-R2-R3, wherein R1 includes a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having an oxygen atom linking R1 and R2; R2 includes an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and R3 includes a branched or unbranched hydrocarbon chain and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation. R3 includes 2-12 carbon atoms.