Rapid cycle annulus pressure responsive tester valve

Details Rapid cycle annulus pressure responsive tester valve Rapid cycle annulus pressure responsive tester valve

Filed on

1986-05-16

Date issued

1988-04-12

Examiner

Novosad, Stephen J.

Patent Class

Wells

SubClass

Valves, closures or changeable restrictors

SubSubClass

Fluid operated

Other Related Categories

166324, 166336, E21B 3400

Type

Patent

Status

active

Patent number

047367989

Description

ABSTRACT:
The present invention comprises a rapid cycle tester valve operable in response to annulus pressure. The tester valve includes a valve ball rotatable between open and closed positions through an operating mechanism which includes a ball and slot ratchet mechanism for selectively transmitting operating movement from a pressure responsive slidable valve housing through a mandrel assembly. The valve housing employs back to back check valves disposed in a longitudinal valve passage to create pressure differentials to move the valve housing in response to annulus pressure increases and decreases.

REFERENCES:
patent: 3856085 (1974-12-01), Holden et al.
patent: 3915228 (1975-10-01), Giebeler
patent: 4109724 (1978-08-01), Barrington
patent: 4109725 (1978-08-01), Williamson et al.
patent: 4113012 (1978-09-01), Evans et al.
patent: 4341266 (1982-07-01), Craig
patent: 4355685 (1982-10-01), Beck
patent: 4403659 (1983-09-01), Upchurch
patent: 4422506 (1983-12-01), Beck
patent: 4429748 (1984-02-01), Beck
patent: 4444267 (1984-04-01), Beck
patent: 4444268 (1984-04-01), Barrington
patent: 4537258 (1985-08-01), Beck
patent: 4557333 (1985-10-01), Beck
patent: 4633592 (1987-01-01), Ringgenberg
patent: 4667743 (1987-05-01), Ringgenberg et al.

Affiliated with

Also associated with

Rating

Rapid cycle annulus pressure responsive tester valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rapid cycle annulus pressure responsive tester valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid cycle annulus pressure responsive tester valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1423903