Wash tool

Details Wash tool Wash tool

1989-11-08

1991-02-12

Neuder, William P.

Wells

Processes

Cleaning or unloading well

166191, E21B 3700

Patent

active

049916530

ABSTRACT:
A wash tool includes a housing having upper and lower packer cups attached thereto for sealing between the housing and a casing bore and defining an upper well annulus portion, an intermediate well annulus portion, and a lower well annulus portion. The housing has an upper fluid bypass passage defined therethrough communicating the upper portion and intermediate portion of the well annulus. The housing includes a lower fluid bypass passage defined therethrough for communicating the intermediate portion and the lower portion of the well annulus. A longitudinal housing bore is defined through the housing and has an open lower end so that fluid in the lower portion of the well annulus may return up through the housing bore. The lower packer cup wipes the casing bore as it advances downward through the casing. The fluid exiting the upper bypass passage exits through downwardy directed jets so as to jet wash the intermediate portion of the well annulus as the tool advances down through the casing bore.

REFERENCES:
patent: 2449642 (1948-09-01), Coons
patent: 2512801 (1950-06-01), Kinney et al.
patent: 2935132 (1960-05-01), Arterbury et al.
patent: 3251416 (1966-05-01), Kiel
patent: 3648777 (1972-03-01), Arterbury et al.
patent: 3760878 (1973-09-01), Peevey
patent: 4027732 (1977-06-01), Perkins
patent: 4099451 (1978-07-01), Blackwell
patent: 4421182 (1983-12-01), Moody et al.
patent: 4431058 (1984-02-01), Spencer et al.
patent: 4505341 (1985-03-01), Moody et al.
patent: 4625799 (1986-12-01), McCormick et al.
patent: 4705107 (1987-11-01), Council et al.
patent: 4744420 (1988-05-01), Patterson et al.
patent: 4781250 (1988-11-01), McCormick et al.
Exhibit A--Brochure of Otis Engineering Corporation entitled "Hydra-Blast" Services.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-14046