发明名称 |
Process to prepare borozirconate solution and use as a cross-linker in hydraulic fracturing fluids |
摘要 |
A process to prepare a stable solution of a borozirconate complex is disclosed and use of the solution in oil field applications such as hydraulic fracturing and plugging of permeable zones. The process comprises contacting zirconium complex with a first alkanolamine, then water and optionally hydroxyalkylene diamine, then with a solution of a boron compound and a second alkanolamine. The solution is particularly suitable for use in a cross-linking composition in hydraulic fracturing and plugging of permeable zones of subterranean formations at temperatures of 275° F. (135° C.) and higher in the formation.
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申请公布号 |
US7790657(B2) |
申请公布日期 |
2010.09.07 |
申请号 |
US20070002372 |
申请日期 |
2007.12.17 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
PUTZIG DONALD EDWARD |
分类号 |
C01B35/02;C01G23/00;C09K8/60;C09K8/68 |
主分类号 |
C01B35/02 |
代理机构 |
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