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US08746343B2 Method and apparatus for wellbore fluid treatment 失效
井筒流体处理方法和装置

Method and apparatus for wellbore fluid treatment
Abstract:
A tubing string assembly is disclosed for fluid treatment of a wellbore. The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off. The tubing string can also be used where a ported tubing string is required to be run in a pressure tight condition and later is needed to be in an open-port condition.
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