发明名称 |
METHOD OF USING PHTHALIC AND TEREPHTHALIC ACIDS AND DERIVATIVES THEREOF IN WELL TREATMENT OPERATIONS |
摘要 |
The flow of a fluid may be diverted from a high permeability zone to a low permeability portion of a subterranean formation by use of a diverter having the structural formula (I): wherein: R1 is -COO-(R5O)y-R4; R2 and R3 are selected from the group consisting of -H and -COO-(R5O)y-R4; provided that at least one of R2 or R3 is -COO-(R5O)y-R4 and further provided that both R2 or R3 are not -COO-(R5O)y-R4; R4 is -H or a C1-C6 alkyl group; R5 is a C1-C6 alkylene group; and each y is 0 to 5. Anhydrides of formula (I) are also acceptable as the diverter. |
申请公布号 |
EP2864441(A2) |
申请公布日期 |
2015.04.29 |
申请号 |
EP20130737731 |
申请日期 |
2013.06.26 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
GUPTA, D.V. SATYANARAYANA |
分类号 |
C09K8/506;C09K8/516;C09K8/536;C09K8/68;C09K8/70;C09K8/76;C09K8/86;C09K8/92;E21B43/04 |
主分类号 |
C09K8/506 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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