发明名称 |
Apparatus and Method for Fracturing a Well |
摘要 |
An apparatus and method is provided for fracturing a well in a a hydrocarbon bearing formation. The apparatus can include a valve subassembly that is assembled with sections of casing pipe to form a well casing for the well. The valve subassembly includes a sliding piston that is pinned in place to seal off ports that provide communication between the interior of the well casing and a production zone of the formation. A dart can be inserted into the well casing and propelled by pressurized fracturing fluid until the dart reaches the valve subassembly to plug off the well casing below the valve subassembly. The force of the fracturing fluid against the dart forces the piston downwards to shear off the pins and open the ports. The fracturing fluid can then exit the ports to fracture the production zone of the formation.
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申请公布号 |
US2013168098(A1) |
申请公布日期 |
2013.07.04 |
申请号 |
US201113643977 |
申请日期 |
2011.04.28 |
申请人 |
CAMPBELL SEAN PATRICK;JANI WILLIAM;SURETECH TOOL SERVICES INC. |
发明人 |
CAMPBELL SEAN PATRICK;JANI WILLIAM |
分类号 |
E21B43/26;E21B34/14 |
主分类号 |
E21B43/26 |
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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