Method and apparatus for treating a subterranean formation

Details Method and apparatus for treating a subterranean formation Method and apparatus for treating a subterranean formation

2006-06-27

2006-06-27

Dang, Hoang (Department: 3672)

Wells

Processes

Placing fluid into the formation

C166S051000, C166S147000, C166S177500, C166S191000, C166S237000, C166S278000, C166S313000, C166S381000

Reexamination Certificate

active

07066264

ABSTRACT:
A service/completion liner having a plurality of downhole selectable indicating tools and being used in sand control (gravel pack) placement systems in conjunction with a straddle packer service tools or with conventional crossover type service tools. Each indicating collar has a downhole selectable indicating collar providing a robust, landing profile for precisely locating and maintaining service tool position during well treatment operations. The landing collars accommodate hydraulic and/or thermal effects commonly referred to as tubing move effects which are the principle cause of tool position error and excessive seal wear. The landing collar is downhole convertible between a pass through (Go) and non pass through (No-go) condition by simple upward and downward cycling via the tool running and treatment fluid tubing and a shifting tool, which may also be referred to as a set down collet. The shifting/set down collet is also used to open and close a downhole sliding sleeve valve and may be an integral part of an injection tool or a tool for gravel or fracture packing. A sliding sleeve valve design and a straddle packer configuration that protects the primary PBRs in the gravel pack system and also protects the sliding sleeve while sand is placed in the screen casing annulus.

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Baker Hughes, Baker Oil Tools, Product Report, Sand Control Systems, 2002, 1-page.

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