Hydraulic system in formation test tools having a hydraulic pad

Details Hydraulic system in formation test tools having a hydraulic pad Hydraulic system in formation test tools having a hydraulic pad

1988-07-05

1989-11-14

Levy, Stewart J.

Measuring and testing

Borehole or drilling

Downhole test

166264, E21B 4908

Patent

active

048799009

ABSTRACT:
A formation tester is set forth. The device utilizes a snorkel extending from the formation tester to obtain a pressure test and collect samples from a formation of interest. The apparatus includes multiple sample storage containers, thereby cooperating with an equalizing valve to selectively isolate the snorkel from fluid and fluid pressures in the well. A control valve system in a hydraulic circuit operate backup shoes and a snorkel seal until testing is over to assure sealing against well fluid invasion in unconsolidated formation. A speed up sequence for both the backup piston and cylinder arrangement as well as the pad setting piston and snorkel arrangement is illustrated.

REFERENCES:
patent: 3254531 (1966-06-01), Briggs, Jr.
patent: 3677080 (1972-07-01), Hallmark
patent: 4339948 (1982-07-01), Hallmark
patent: 4513612 (1985-04-01), Shalek
patent: 4745802 (1988-05-01), Purfurst

Affiliated with

Also associated with

Rating

Hydraulic system in formation test tools having a hydraulic pad 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 system in formation test tools having a hydraulic pad , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic system in formation test tools having a hydraulic pad will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1846670