Wellbore circulating valve

Details Wellbore circulating valve Wellbore circulating valve

1974-10-10

1976-01-06

Purser, Ernest R.

Wells

Valves, closures or changeable restrictors

166 95, 166224A, 251 58, E21B 3300

Patent

active

039305406

ABSTRACT:
A wellbore circulating valve especially useful in a string of testing tools utilizes a sequentially ratcheted inner mandrel which covers a series of flow ports and is opened by a predetermined sequence of operations which move the mandrel away from the flow ports thereby communicating the annulus with the inner bore of the tool.

REFERENCES:
patent: 2951536 (1960-09-01), Garrett
patent: 3071151 (1963-01-01), Sizer
patent: 3126965 (1964-03-01), Lindsey
patent: 3237695 (1966-03-01), Bostock et al.
patent: 3306366 (1967-02-01), Muse
patent: 3361212 (1968-01-01), Page, Jr.
patent: 3433301 (1969-03-01), McEver, Jr.
patent: 3456723 (1969-07-01), Current et al.
patent: 3507327 (1970-04-01), Chenoweth
patent: 3570595 (1971-03-01), Berryman
patent: 3583481 (1971-06-01), Vernotzy
patent: 3664415 (1972-05-01), Wray et al.
patent: 3750749 (1973-08-01), Giroux

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2343140