发明名称 |
Use of scale inhibitors in hydraulic fracture fluids to prevent scale build-up |
摘要 |
Scale inhibitor is added to a cross-linked fracturing fluid as an integral part of the fracturing fluid. Preferred fracturing fluids are borate cross-linked and the preferred scale inhibitor is polyacrylate. In another embodiment of this invention, the fracturing fluid is prepared by adding a scale inhibitor to a fracturing fluid at a pH of between 8.5 and 10.5. In a third embodiment, the fracturing fluid prepared above is used to fracture subterranean formations. In a fourth embodiment, the fracturing fluid is used to pressurize a subterranean formation to break scale near the hydrocarbon wellbore.
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申请公布号 |
US5224543(A) |
申请公布日期 |
1993.07.06 |
申请号 |
US19910753200 |
申请日期 |
1991.08.30 |
申请人 |
UNION OIL COMPANY OF CALIFORNIA |
发明人 |
WATKINS, DAVID R.;CLEMENS, JOSEPH J.;SMITH, JOHN C.;SHARMA, SURINDER N.;EDWARDS, HETTY G. |
分类号 |
C09K8/528;C09K8/68;E21B37/06;E21B43/26 |
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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