Wells – Processes – With indicating – testing – measuring or locating
Patent
1992-10-19
1994-07-12
Bui, Thuy M.
Wells
Processes
With indicating, testing, measuring or locating
166308, 166372, E21B 4700
Patent
active
053279719
ABSTRACT:
A means for taking pressure readings in a bottom-hole zone of a well without interfering with an operation in which solid material is moving through a tubing string. A pressure recorder is enclosed in a carrier attached to the outer surface of a tubing sub near the end of the tubing string. The carrier walls include ports which expose the pressure recorder to the fluid in the bottom-hole zone. This arrangement allows operations such as sand fracture stimulations and rod pumping to be unimpeded by a pressure recorder.
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"Hydraulic Fracturing", pp. 130-136, by Howard et al, SPE of AIME, 1970.
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Ellwood David E.
Garbutt Charles F.
Bui Thuy M.
Marathon Oil Company
Tsay Frank S.
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