Wells – With eduction pump or plunger – With packer or plug
Patent
1988-09-20
1989-10-31
Massie, IV, Jerome W.
Wells
With eduction pump or plunger
With packer or plug
166187, 166191, 166321, 166326, E21B 3406, E21B 4700
Patent
active
048770868
ABSTRACT:
A pressure limiter for use with a positive displacement pump and an inflatable packer. The pressure limiter includes an outer housing with an inner mandrel disposed therein. Slidably disposed between the mandrel and housing is a generally annular piston. A spring biases the piston toward a closed position. Packer pressure acts upwardly on the piston tending to move it to an open position in which pump discharge pressure is relieved to a well annulus. A check valve prevents premature relief of pressure of the packer. Once the piston is in an open position, packer pressure will maintain it in the open position until pressure is relieved from the packer.
REFERENCES:
patent: 2690224 (1954-09-01), Roberts
patent: 3083774 (1963-04-01), Peters et al.
patent: 3291219 (1966-12-01), Nutter
patent: 3439740 (1969-04-01), Conover
patent: 3853177 (1974-10-01), Mott
patent: 3876000 (1975-04-01), Nutter
patent: 3876003 (1975-04-01), Kisling, III
patent: 3887007 (1975-06-01), Abney et al.
patent: 3926254 (1975-12-01), Evans et al.
patent: 4246964 (1981-01-01), Brandell
patent: 4313495 (1982-02-01), Brandell
patent: 4320800 (1982-03-01), Upchurch
patent: 4366862 (1983-01-01), Brandell
patent: 4372387 (1983-02-01), Brandell
patent: 4386655 (1983-06-01), Brandell
patent: 4388968 (1983-06-01), Brandell
patent: 4412584 (1983-11-01), Brandell
patent: 4457367 (1984-07-01), Brandell
patent: 4458752 (1984-07-01), Brandell
patent: 4729430 (1988-03-01), White et al.
Halliburton Hydroflate Packers Assembly-Operation-Maintenance Manual No. 610.6051, Halliburton Services.
Northstar Drilling Tester, Ltd., Tool String Shown on Page 11 of the Sep. 1, 1980, Edition of Oil Week.
Lynes Product No. 302-40, pp. 3964-3966 of Lynes Catalog.
Johnston/Schlumberger Form J-432.
Halliburton Company
Kennedy Neal R.
Massie IV Jerome W.
McBurney Mark E.
Melius Terry L.
LandOfFree
Pressure limiter for a downhole pump and testing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressure limiter for a downhole pump and testing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure limiter for a downhole pump and testing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-621109