E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 49/08 (2006.01)
Patent
CA 2071953
2071953 9109207 PCTABS00005 A sampling tool for immersing into a well for collection of samples of oil, gas or water during drilling for production of said fluids. The sampling tool (1) comprises a tubular, hollow and preferably cylindrical member with two chambers (12, 14) separated by a compressible pipe (9). Said sampling tool comprises an outer pipe (2) formed as a cylindrical member to withstand the reservoir pressure. Inside the outer pipe (2) is positioned a unit (13) forming a gas tight storage chamber (12) for the gas-/liquid samples and a chamber (14) for a counter pressure medium. The chamber (14) is formed by pressing the pipe (9) against the inside of a U-profile (10). During sampling, the volume of chamber (12) will increase and the volume of chamber (14) will be reduced corresponding to the increase of chamber (12). Total separation of the gas-/liquid sample from the counter pressure medium is obtained by applying a diffusion tight flexible pipe (9) and the gas-/liquid sample analyzed will thus be representative for the reservoir gas-/liquid sampled.
Fetherstonhaugh & Co.
Norsk Hydro A.s.
LandOfFree
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