SLIDING SLEEVE BYPASS VALVE FOR WELL TREATMENT
A downhole bypass valve utilizes a stationary sleeve defining an interior ball-seat. When a dropped ball is seated, fluid differential pressure is diverted to an annular area adjacent a first sliding sleeve. The sleeve slides in response to the pressure differential upon shearing of a shear pin, or...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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