Subsurface injection tool

Details Subsurface injection tool Subsurface injection tool

E - Fixed Constructions

21

B

166/62

E21B 33/124 (2006.01) E21B 34/14 (2006.01) E21B 43/14 (2006.01)

Patent

CA 1265440

TITLE: SUBSURFACE INJECTION TOOL ABSTRACT OF THE DISCLOSURE An injection tool for use in injecting fluids through perforations in the well bore of an oil or gas well is mechani- cally set and mechanically releasable. Fluid can be injected between upper and lower packing elements into a selected perfor- ation. The upper and lower packing elements on opposite sides of the perforation into which fluid is injected are retractable, and any pressure differential across the upper packing elements or across the lower packing elements can be separately equalized.

511151

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