发明授权
- 专利标题： Hydraulic fracturing methods using cross-linking composition comprising zirconium triethanolamine complex
- 专利标题（中）： 使用包含三乙醇胺锆复合物的交联组合物的水力压裂方法
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申请号： US11353834申请日： 2006-02-14
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公开(公告)号： US07730952B2公开(公告)日： 2010-06-08
- 发明人: Donald Edward Putzig
- 申请人： Donald Edward Putzig
- 申请人地址： US DE Wilmington
- 专利权人： E.I. duPont de Nemours and Company
- 当前专利权人： E.I. duPont de Nemours and Company
- 当前专利权人地址： US DE Wilmington
- 代理商 Kathryn M. Sanchez
- 主分类号： E21B43/26
- IPC分类号： E21B43/26
摘要：
A method for hydraulically fracturing a subterranean formation comprises introducing into the formation a cross-linking composition which comprises a zirconium triethanolamine complex, a tetra(hydroxyalkyl)ethylenediamine, water, a cross-linkable organic polymer, and optionally, a polyol. The method can be used for cross-linking organic polymers over a wide range of pH. By varying the composition and optionally adding a delay agent, the method provides flexibility in rate of cross-linking.
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