INFLUENCE OF CAPILLARY FORCE ON WFT MEASUREMENT AND NEW CORRECTING METHOD

doi:10.3863/j.issn.1000-2634.2007.06.003

西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (6): 17-20.DOI: 10.3863/j.issn.1000-2634.2007.06.003

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INFLUENCE OF CAPILLARY FORCE ON WFT MEASUREMENT AND NEW CORRECTING METHOD

GUAN Fu-jiaLI Xiang-fangSUI Xiu-xiangLI Yun-boLIU Shu-min

1.MOE Key Laboratory of Petroleum Engineering in China University of Petroleum，Changping Beijing 102249,China；2.Tech Ser LTD.CO.CNOOC,Yanjiao Beijing 101149，China

Received:2007-07-06 Revised:1900-01-01 Online:2007-12-20 Published:2007-12-20
Contact: GUAN Fu-jia

Abstract

Abstract:

Wireline formation testing（WFT）is one of primary methods of deriving reservoir information in oil industry. As the testing time is relatively short, WFT pumping Volume seldom breaks down mud contamination, capillary force in the invaded zone impacts testing pressure data. The capillary force properties of invaded zone in different formation type are analyzed, and a novel capillary force calculation model is established based on the combination of NMR logging data and empirical equation from Schlumberger CORP. The WFT testing data corrected by this model are compared with DST testing data. The comparative result shows that this novel model method can effectively correct WFT data, and improve WFT interpreting accuracy.

Key words: wireline formation testing, capillary force, wettability, drilling system testing, formation pressure

CLC Number:

TE272

GUAN Fu-jia LI Xiang-fang SUI Xiu-xiang LI Yun-bo LIU Shu-min . INFLUENCE OF CAPILLARY FORCE ON WFT MEASUREMENT AND NEW CORRECTING METHOD[J]. 西南石油大学学报(自然科学版), 2007, 29(6): 17-20.

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INFLUENCE OF CAPILLARY FORCE ON WFT MEASUREMENT AND NEW CORRECTING METHOD

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