Expendable devices for well lock system

Details Expendable devices for well lock system Expendable devices for well lock system

1989-12-13

1990-11-13

Neuder, William P.

Wells

Packers or plugs

With expanding anchor

166188, E21B 3312

Patent

active

049695150

ABSTRACT:
A lock system for wells which includes a landing nipple in the well tubing and two embodiments of a lock mandrel, which are sealingly engageable and releasably lockable in the landing nipple to control flow through the well tubing. One lock mandrel is closed to flow and "plugs" the landing nipple. The other lock mandrel, which will operate as a standing valve, has a through flow passage and a check valve preventing downward flow through the flow passage and lock mandrel. Both lock mandrels utilize "C" rings for locking in landing nipples and may be released for expending downwardly from landing nipples by a predetermiend downward force.

REFERENCES:
patent: 2994280 (1961-08-01), Daffin
patent: 3180420 (1965-04-01), Mason, Jr. et al.
patent: 3250331 (1966-05-01), Boyle
patent: 4355686 (1982-10-01), Arendt et al.
patent: 4360063 (1982-11-01), Kilgore
patent: 4630833 (1986-12-01), Boyle et al.
patent: 4718488 (1988-01-01), Pringle et al.
Otis Engineering Corporation; TFL/Pumpdown and Completion Equipment and Services Catalogue, pp. 266 & 278; 1985.

Affiliated with

Also associated with

Rating

Expendable devices for well lock system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expendable devices for well lock system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expendable devices for well lock system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-771522