E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 49/08 (2006.01) E21B 47/06 (2006.01)
Patent
CA 2639577
A method of downhole characterization of formation fluids is provided. The method includes: estimating a rough value of the bubble point pressure of the formation fluids; depressurizing the formation fluids at a first speed to a certain pressure which is a predetermined value higher than the estimated rough value while the formation fluids are isolated in a portion of the flowline; and depressurizing the isolated fluids at a second speed which is slower than the first speed in order to measure a precise value of the bubble point pressure.
Betancourt Soraya S.
Chikenji Akihito
Dong Chengli
Kinjo Hideki
Mullins Oliver C.
Schlumberger Canada Limited
Smart & Biggar
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