Delayed opening fluid sampler

Details Delayed opening fluid sampler Delayed opening fluid sampler

1989-01-06

1990-02-27

Novosad, Stephen J.

Wells

Receptacles

166 64, 166169, 166264, 7386462, 7386464, E21B 4908

Patent

active

049037650

ABSTRACT:
A delayed opening fluid sampling tool comprises a body having three chambers and a port defined therein. The tool also comprises a metering device which is disposed in the body between two of the chambers, one of which chambers is for holding a metering fluid and the other of which is for receiving fluid which is transferred through the metering device. The tool further comprises a valve which is disposed in the body between the port and the remaining chamber, which remaining chamber is for receiving a well fluid sample. The valve is moved relative to the body in response to pressure acting on the valve through the port. Only after a predetermined time delay after the pressure begins moving the valve is the valve positioned to communicate the port with the sample-receiving chamber.

REFERENCES:
patent: 2557925 (1951-06-01), Stokes
patent: 2862561 (1958-12-01), Teubner
patent: 3095930 (1963-07-01), Kisling, III
patent: 4372382 (1983-02-01), Rooney et al.
patent: 4502537 (1985-03-01), Carter, Jr.
patent: 4665983 (1987-05-01), Ringgenberg
patent: 4766955 (1988-08-01), Petermann
patent: 4787447 (1988-11-01), Christensen

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