G - Physics – 01 – N
Patent
G - Physics
01
N
150/19, 166/5
G01N 31/00 (2006.01) E21B 33/124 (2006.01) E21B 47/10 (2006.01) E21B 49/08 (2006.01) E21B 49/10 (2006.01)
Patent
CA 1153288
-1- ABSTRACT OF THE DISCLOSURE A method and apparatus operable on a wireline logging cable for sampling and testing borehole fluids, transmitting the results obtained from such testing to the surface for determination whether or not the particular sample undergoing testing should be collected and brought to the surface. The apparatus comprises a downhole tool having an inflatable double packer for isolating an interval of the borehole coupled with a hydraulic pump, the pump being utilized sequentially to inflate the double packer and isolate an interval of the borehole and to remove fluids from the isolated interval to test chamber means where resistivity, redox potential (Eh) and acidity (pH) are determined, and finally to dispose of selected samples to one or more sample container chambers within said tool or to reject them into the borehole if not selected.
373531
Gowling Lafleur Henderson Llp
Standard Oil Company
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