Measuring and testing – Borehole or drilling – Downhole test
Patent
1975-10-28
1976-08-17
Myracle, Jerry W.
Measuring and testing
Borehole or drilling
Downhole test
73 405R, E21B 4706
Patent
active
039746909
ABSTRACT:
A method of and apparatus for measuring and monitoring the annulus pressure between coaxial well conduits by providing a pressure measuring means which is adapted to be positioned in the well in the annulus and which is movable in response to pressure, and measuring means measuring the movement of the movable pressure measuring means, and transmitting the measurement to the well surface. Pressure measuring means may include a movable element exposed to the pressure in the annulus and a pressure charge chamber acting on the element opposing the movement caused by the pressure in the annulus. The pressure chamber and movable elements may be annular and surround the exterior of the interior conduit. The measuring means includes sensor means adapted to be moved in the well in the interior of the interior conduit to a position adjacent but spaced from the pressure measuring means for providing measurements by signal waves. The measuring means may include a stop shoulder for location the measuring means at a predetermined location in the interior conduit.
REFERENCES:
patent: 3186481 (1965-06-01), Foster
patent: 3199598 (1965-08-01), Loomis
Brock, Jr. Bill M.
Marquette Leo Jude
Nelson Norman Allen
Myracle Jerry W.
Stewart & Stevenson Oiltools, Inc.
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