发明名称 |
Process for reducing the adsorption of polymers onto rock matrix |
摘要 |
Process for reducing the adsorption of hydrosoluble polymers onto rock matrix, which comprises putting the rock matrix in contact with an aqueous solution of polymers containing sacrificial agents, preferably selected from ionic and non-ionic oligomeric surface-active agents. In the preferred embodiment the surface-active agents are non-ionic.
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申请公布号 |
US6499539(B1) |
申请公布日期 |
2002.12.31 |
申请号 |
US20000721653 |
申请日期 |
2000.11.27 |
申请人 |
ENI S.P.A.;ENITECHNOLOGIE S.P.A. |
发明人 |
COBIANCO SANDRA;LOCKHART THOMAS PAUL;LEZZI ALESSANDRO;GUARNERI ALBERTO |
分类号 |
C09K8/52;C09K8/88;(IPC1-7):E21B33/10;E21B43/00 |
主分类号 |
C09K8/52 |
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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