| 发明名称 |
DISSOLVING BARIUM SULPHATE SCALE |
| 摘要 |
<p>Process for cleaning a well penetrating an underground formation and optionally formation parts in the vicinity of the wall using an aqueous composition comprising a salt of a macrocyclic polyether (e.g. 1,10-di(carboxymethyl)-1,10-diaza-4,T,13,16-tetraoxacyclootadacane) which may be formed in situ.</p> |
| 申请公布号 |
CA1120473(A) |
申请公布日期 |
1982.03.23 |
| 申请号 |
CA19790328460 |
申请日期 |
1979.05.28 |
| 申请人 |
SHELL CANADA LIMITED |
发明人 |
DE JONG, FEIKE;REINHOUDT, DAVID N.;TORNY-SCHUTTE, GERRIDINA J.;VAN ZON, ARIE |
| 分类号 |
C09K8/528;C09K8/78;(IPC1-7):C07D273/08;E21B37/06 |
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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