发明名称 |
SCALE INHIBITORS COMPATIBLE WITH SANDSTONE ACIDIZING |
摘要 |
Methods are given for making scale inhibitors, that were previously incompatible with fluids containing fluoride ion, compatible with fluids containing fluoride ion. Examples of such scale inhibitors include phosphonates and phosphino- polycarboxylates. The method is replacing alkali metal and alkaline earth metal cations, present in salts or bases, or as counter ions of the scale inhibitors, with hydrogen or ammonium ions. Methods of inhibiting scale formation and of dissolving scales are also given. |
申请公布号 |
WO2007017815(A2) |
申请公布日期 |
2007.02.15 |
申请号 |
WO2006IB52684 |
申请日期 |
2006.08.03 |
申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT N.V.;XIAO, ZHIJUN;GARCIA-LOPEZ DE VICTORIA, MARIELIZ;TUEDOR, FRANCIS |
发明人 |
XIAO, ZHIJUN;GARCIA-LOPEZ DE VICTORIA, MARIELIZ;TUEDOR, FRANCIS |
分类号 |
C09K8/52;C09K8/528;C09K8/72;C09K8/74 |
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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