发明名称 |
USE OF CHELANTS IN FORMATE-BASED SOLUTIONS TO DISSOLVE RESIDUAL FILTERCAKES IN SUBTERRANEAN WELLS |
摘要 |
A wellbore fluid for dissolving a filtercake includes a chelating agent and an aqueous solution of carboxylate salt. The concentration of the chelating agent is up to 50 percent volume per volume (v/v) in the aqueous solution of carboxylate salt. A method of treating a well includes preparing a wellbore fluid up to 50 percent volume per volume (v/v) chelating agent in an aqueous solution of carboxylate salt. The method further includes emplacing the wellbore fluid downhole such that the wellbore fluid dissolves a filtercake in the well. |
申请公布号 |
NO20151380(A1) |
申请公布日期 |
2015.10.12 |
申请号 |
NO20150001380 |
申请日期 |
2015.10.12 |
申请人 |
M-I L.L.C. |
发明人 |
LUYSTER MARK RONALD;LIM SOOI KIM;ALLOGO CLOTAIRE-MARIE EYAA |
分类号 |
C09K8/52;E21B37/00;E21B37/06 |
主分类号 |
C09K8/52 |
代理机构 |
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代理人 |
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地址 |
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