Invention Grant
US07275595B2 Method and apparatus to isolate fluids during gravel pack operations 失效
在砾石充填作业中隔离流体的方法和装置

Method and apparatus to isolate fluids during gravel pack operations
Abstract:
The present invention provides for an apparatus and method to displace fluids and to prevent the mixing or bypassing of fluids used in gravel pack operations. A moveable plug is used to create a physical partition between fluids.
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