Wells – Processes – With indicating – testing – measuring or locating
Patent
1989-05-04
1990-07-24
Neuder, William P.
Wells
Processes
With indicating, testing, measuring or locating
166264, 166387, 166144, 166180, 166191, E21B 33124, E21B 4908
Patent
active
049429230
ABSTRACT:
An apparatus for isolating a testing zone in a bore hole screen casing includes a lower plug member sealingly positionable at a desired longitudinal point within the casing and an upper plug that is independent of the lower plug is also sealingly positionable at another desired point along the longitudinal bore of the screen casing. The isolated test zone is defined between the lower and upper plug members and both the longitudinal length of the isolated test zone and the location of the test zone are selectively variable. A fluid carrying conduit is connected to the upper plug member and is in communication through a bore in the upper plug member with the isolated test zone for accessing and sampling fluid therein.
REFERENCES:
patent: 2711220 (1955-06-01), Simmons
patent: 3871218 (1975-03-01), Louis
patent: 3908454 (1975-09-01), Mullins et al.
patent: 4146094 (1979-03-01), Benedum et al.
patent: 4171642 (1979-10-01), Taylor
patent: 4635717 (1987-01-01), Jageler
patent: 4803874 (1989-02-01), Marrast et al.
patent: 4811599 (1989-03-01), Johnson et al.
Neuder William P.
Pappas George
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