Multi-cycle downhole tool with hydraulic damping

Details Multi-cycle downhole tool with hydraulic damping Multi-cycle downhole tool with hydraulic damping

2003-12-30

2009-12-08

Gay, Jennifer H (Department: 3676)

Wells

Processes

Placing or shifting well part

C166S222000, C166S312000, C166S318000, C166S332400, C166S334400

Reexamination Certificate

active

07628213

ABSTRACT:
A downhole tool which includes a locking bar to allow movement of a sleeve within the tool over a pre-defined range. The range is defined by a recess arranged axially or circumferentially in the tool, in which the bar locates. Fluid can be vented from the recess to provide a hydraulic brake, to prevent premature shearing of any shear pins in the tool. A stabiliser, jetting and circulating tool is described including the locking bar together with applications when incorporated in a bottom hole assembly. The tool allows multiple operations to be performed on a single trip.

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patent: WO 02/068796 (2002-09-01), None
patent: WO 03/087526 (2003-10-01), None

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