Wells – Processes – Sampling well fluid
Patent
1984-09-14
1986-03-04
Novosad, Stephen J.
Wells
Processes
Sampling well fluid
13762519, 73153, 251 62, E21B 4908, E21B 4706
Patent
active
045735328
ABSTRACT:
Disclosed is a Jacquard control system for controlling fluid flow within an apparatus such as a downhole tool. Such Jacquard control system includes at least one control member having a plurality of holes therethrough, the holes being arranged in a plurality of patterns cooperable with fluid passageways within the downhole tool. Each pattern of holes permits fluid flow within the downhole tool to carry out a desired function. Also included is a device to selectively adjust the position of the at least one control member relative to the fluid passageways to permit the fluid flow to carry out the desired functions. A downhole fluid sampler and tester is disclosed which includes a Jacquard control system, for withdrawing fluid from a subterranean formation; determining at least one property of the withdrawn fluid, such as EH, pH, temperature, pressure and resistivity, and, if desired, obtaining a sample of the withdrawn fluid.
REFERENCES:
patent: 2964061 (1960-12-01), Rawson et al.
patent: 3248938 (1966-05-01), Hill et al.
patent: 3494175 (1970-02-01), Cusick et al.
patent: 3577782 (1971-05-01), Aitken
patent: 3611799 (1971-10-01), Davis
patent: 4497369 (1985-02-01), Hurta et al.
Amoco Corporation
Brown Scott H.
Hook Fred E.
Letchford John F.
Novosad Stephen J.
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