Invention Grant
- Patent Title: Process to prepare zirconium-based cross-linker compositions and their use in oil field applications
- Patent Title (中): 制备锆基交联剂组合物的方法及其在油田应用中的应用
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Application No.: US12002665Application Date: 2007-12-18
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Publication No.: US07754660B2Publication Date: 2010-07-13
- Inventor: Donald Edward Putzig
- Applicant: Donald Edward Putzig
- Applicant Address: US DE Wilmington
- Assignee: E.I. du Pont de Nemours and Company
- Current Assignee: E.I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Agent Kathryn M. Sanchez
- Main IPC: C01G25/00
- IPC: C01G25/00 ; C09K8/60
Abstract:
A process to prepare a solution of zirconium-alkanolamine-hydroxycarboxylic acid 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 an alcohol solution of a zirconium complex with an alkanolamine, then with an α-hydroxycarboxylic acid to produce a solution of zirconium-alkanolamine-hydroxycarboxylic acid complex. 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.
Public/Granted literature
- US20090151947A1 Process to prepare zirconium-based cross-linker compositions and their use in oil field applications Public/Granted day:2009-06-18
Information query
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