发明名称 |
METHOD OF DOWNHOLE CHARACTERIZATION OF FORMATION FLUIDS, MEASUREMENT CONTROLLER FOR DOWNHOLE CHARACTERIZATION OF FORMATION FLUIDS, AND APPARATUS FOR DOWNHOLE CHARACTERIZATION OF FORMATION FLUIDS |
摘要 |
A downhole characterization apparatus for formation fluids is provided. The apparatus comprises a downhole tool including a flowline for flowing the formation fluids capable of isolating a quantity of the formation fluids in a portion thereof; and a pump unit for depressurizing the isolated formation fluids; and a measurement controller which controls the downhole tool. The measurement controller includes a rough value estimation unit which estimates a rough value of the bubble point pressure of the formation fluids; and a speed controller which controls the depressurizing speed of the pump unit such that the isolated formation fluids are depressurized at a first speed to a certain pressure which is a predetermined value higher than said estimated rough value, and the isolated fluids are depressurized at a second speed which is slower than said first speed in order to measure a precise value of the bubble point pressure.
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申请公布号 |
US2010313647(A1) |
申请公布日期 |
2010.12.16 |
申请号 |
US20100848976 |
申请日期 |
2010.08.02 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
TERABAYASHI TORU;YAMATE TSUTOMU;KINJO HIDEKI;CHIKENJI AKIHITO;NAKAYAMA TAKEAKI;MULLINS OLIVER C.;BETANCOURT SORAYA S.;O'KEEFE MICHAEL;DONG CHENGLI |
分类号 |
E21B47/08 |
主分类号 |
E21B47/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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