发明名称 |
CHELATING AGENT-BASED SELF-DIVERTING ACIDIZING FLUIDS AND METHODS RELATING THERETO |
摘要 |
Methods, compositions and systems relating to complexing-acidizing treatment fluids. Some methods include: providing or preparing a complexing-acidizing treatment fluid having an acid concentration of about 0.6 Molar, the complexing-acidizing treatment fluid including : an aminopolycarboxylic acid chelating agent, an aqueous base fluid, and an acid, placing the complexing-acidizing treatment fluid in a subterranean formation matrix penetrated by a well bore; allowing the acid to generate metal cations by dissolution of the subterranean formation matrix; reacting the aminopolycarboxylic acid chelating agent with the metal cations so as to form at least a plurality of aggregate blocking agents; and allowing the aggregate blocking agents to divert the complexing-acidizing treatment fluid to a main channel in the subterranean formation matrix that is distinct from a wormhole in the subterranean formation matrix. |
申请公布号 |
WO2015030801(A1) |
申请公布日期 |
2015.03.05 |
申请号 |
WO2013US57594 |
申请日期 |
2013.08.30 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
REYES, ENRIQUE, ANTONIO;BEUTERBAUGH, AARON, MICHAEL;SMITH, ALYSSA, LYNN;SMITH, CHRISTOPHER, LYNN |
分类号 |
C09K8/58;C09K8/035;E21B43/22 |
主分类号 |
C09K8/58 |
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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