Downhole wash tool

Details Downhole wash tool Downhole wash tool

1997-06-11

2000-03-21

Schoeppel, Roger

Wells

Processes

Cleaning or unloading well

166320, 166321, 1663344, E21B 3700

Patent

active

060391170

ABSTRACT:
A downhole wash tool for carrying out cleaning operations in a borehole. The tool has a housing on which a plurality of flow-blocking, diverters (e.g. steel) are mounted. The diverters move between a retracted position and an extended position wherein the diverters effectively block flow around the tool. A retainer normally maintains the diverters in their retracted position when in a first position and releases the diverters when in a second position. A spring normally biases the retainer towards its first position. The retainer is hydraulically-actuated through the housing to move it towards its second position. When the cleaning operation is completed, pressure in the workstring is relaxed whereupon the spring moves the retainer back to its first position to retract the diverters.

REFERENCES:
patent: 1379815 (1921-05-01), Hall
patent: 2120988 (1938-06-01), Park
patent: 2186309 (1940-01-01), Travis
patent: 2290141 (1942-07-01), Burt
patent: 4037661 (1977-07-01), Ford
patent: 4393927 (1983-07-01), Singer
patent: 4411315 (1983-10-01), Baker et al.
patent: 4441557 (1984-04-01), Zublin
patent: 4625799 (1986-12-01), McCormick et al.
patent: 4763728 (1988-08-01), Lacey
patent: 4909325 (1990-03-01), Hopmann
patent: 5337819 (1994-08-01), Tailby

Affiliated with

Also associated with

Rating

Downhole wash tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Downhole wash tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole wash tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-722718