Hydraulic jet well cleaning assembly using a non-rotating tubing

Details Hydraulic jet well cleaning assembly using a non-rotating tubing Hydraulic jet well cleaning assembly using a non-rotating tubing

1982-03-22

1985-05-21

Novosad, Stephen J.

Wells

Processes

Cleaning or unloading well

166222, 239255, 239DIG13, 134167C, 134179, E21B 3700, B08B 902

Patent

active

045180415

ABSTRACT:
A method and system for cleaning well liners employing a non-rotating tubing string attached to a hydraulic jet carrier assembly is disclosed. The assembly has a plurality of jet nozzles spaced along its length, each of said nozzles expelling a stream of fluid under pressure against the liner with a force which has an equal and opposite reactive force. At least some of the nozzles are oriented along the carrier such that the reactive force for each jet is directionally offset with respect to the central axis of the carrier, thereby creating a twisting moment tending to rotate the carrier about its central axis. During the cleaning operation, the bottom hole differential pressure of the fluid supplied to the jet carrier is varied to rotationally displace the carrier as it is moved vertically within the well bore. Moreover, in a preferred embodiment, the angle of rotational displacement can be calculated which will produce at least double coverage of the jet streams against the liner.

REFERENCES:
patent: 2245575 (1941-06-01), Court
patent: 2735794 (1956-02-01), Pletcher
patent: 3547191 (1970-12-01), Malott
patent: 3585076 (1971-06-01), Prange
patent: 3598316 (1971-08-01), Johnson
patent: 3994310 (1976-11-01), Brandon
patent: 4164325 (1979-08-01), Watson
patent: 4349073 (1982-09-01), Zublin
patent: 4361282 (1981-02-01), Divito
patent: 4442899 (1984-04-01), Zublin

Affiliated with

Also associated with

Rating

Hydraulic jet well cleaning assembly using a non-rotating tubing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic jet well cleaning assembly using a non-rotating tubing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic jet well cleaning assembly using a non-rotating tubing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1533445