发明名称 |
Method of preventing precipitation of iron compounds during acid treatment of wells |
摘要 |
The invention discloses a process for reducing sludging during acid treatment of an oil well by adding phosphinic acid or a soluble salt thereof and a source of cupric or cuprous ion. The addition of an iodide ion source to this combination aids its effectiveness in stronger acids.
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申请公布号 |
US5063997(A) |
申请公布日期 |
1991.11.12 |
申请号 |
US19900461119 |
申请日期 |
1990.01.04 |
申请人 |
NOWSCO WELL SERVICE LTD. |
发明人 |
PACHLA, SYLVIA K.;TAYLOR, ROBERT S.;DELOREY, JOHN R. |
分类号 |
C09K8/528;C09K8/74 |
主分类号 |
C09K8/528 |
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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