Apparatus for altering the length of a downhole tool assembly

Details Apparatus for altering the length of a downhole tool assembly Apparatus for altering the length of a downhole tool assembly

1990-11-05

1992-04-21

Neuder, William P.

Wells

Processes

Assembling well part

166381, 175321, E21B 1707

Patent

active

051058901

ABSTRACT:
Apparatus for altering the length of a down-hole tool assemblly is described. The apparatus comprises a main housing (1), a slide (13) movable within the housing between a retracted position and an extended position, and latching means (6,755,33,41) to releasably secure the slide (13) to the housing (1) when the slide (13) is in either the extended position or the retracted position. The latching means (6,7,33,41,55) is activated and de-activated by fluid pressure within the apparatus where the apparatus forms part of a drill string, the fluid is typically drilling mud which is pumped through the drill string and the apparatus and the pressure is changed by changing the rate of mud flow through the drill string.

REFERENCES:
patent: 3763666 (1973-10-01), Tibussek
patent: 4040649 (1977-08-01), Blackwell
patent: 4055226 (1977-10-01), Weber
patent: 4113038 (1978-09-01), Clark
patent: 4693316 (1987-09-01), Ringgenberg et al.
patent: 4844181 (1989-07-01), Bassinger

Affiliated with

Also associated with

Rating

Apparatus for altering the length of a downhole tool assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for altering the length of a downhole tool assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for altering the length of a downhole tool assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1579445