Measuring and testing – Borehole or drilling – Downhole test
Patent
1990-09-13
1993-02-16
Williams, Hezron E.
Measuring and testing
Borehole or drilling
Downhole test
166250, E21B 2308
Patent
active
051860481
ABSTRACT:
Method and apparatus for logging a formation interval in a well when the fluids are produced therefrom by a downhole pump. The method comprises lowering into the well a tubing (10) carrying a downhole pump (14) and a logging assembly, the logging assembly comprising a support (31) releasably latched in the tubing at an upper position located a predetermined distance above the pump, a cable section (26) attached to the support and passing from the bore of the tubing to the well bore along the pump through a sealed passage (25), and a well logging tool (15) attached at the lower portion of the cable section in a protecting sleeve (28). When the pump is at the correct depth in the well, a cable is passed from the surface through the tubing and connected to the support (31) by means of a wet connector. The support is released from its upper latching position and lowered in the tubing for bringing the logging tool (15) to the formation interval (12). Then, the formation interval can be logged while fluids are pumped out from the interval by the downhole pump.
REFERENCES:
patent: Re32336 (1987-01-01), Escaron et al.
patent: 2943682 (1960-07-01), Ingram et al.
patent: 4098342 (1978-07-01), Robinson et al.
patent: 4267726 (1981-05-01), Noik
patent: 4488597 (1984-12-01), Hoppe et al.
patent: 4664189 (1987-05-01), Wittrisch
patent: 4690214 (1987-09-01), Wittrisch
Blair John
Foster Brian
Bouchard John H.
Garrana Henry N.
Miller Craig
Schlumberger Technology Corporation
Williams Hezron E.
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