Frac gate and well completion methods

Details Frac gate and well completion methods Frac gate and well completion methods

2007-10-05

2009-12-29

Thompson, Kenneth (Department: 3672)

Wells

Hydraulic fracturing device

C166S373000, C166S308100, C166S387000

Reexamination Certificate

active

07637317

ABSTRACT:
Methods and apparatus are provided for oil and gas well completions without conventional perforations or jet cutting. One or more frac gate tool(s) are included in the production casing string or liner which is cemented in the hole. The frac gates have a sleeve that is openable by a shifting tool to allow fluids inside the casing or liner to exit through ports and breakdown and treat the adjacent formation. Casing flapper valves are placeable above a lower frac gate to isolate the treated formation from a higher producing zone during treatment of the higher zone through a higher frac gate. A single hydraulically actuated shifting tool is usable to open the frac gates and close the casing flapper valves.

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