西南石油大学学报(自然科学版) ›› 2006, Vol. 28 ›› Issue (4): 5-7.DOI: 10.3863/j.issn.1000-2634.2006.04.002

• 地质勘探 • Previous Articles     Next Articles

CORRECTION FOR RESISTIVITY VALUE OF ELECTRIC LOG OF FRESH-WATER MUD INVASION

JIANG Peng-fei YANG Dong-mei LIU Zi-liang et al

  

  1. Institute of Geology and Geophysics as well asPostgraduate Schoo,l ChineseAcademy ofSciences, Beijing 100029, China
  • Received:2005-09-21 Revised:1900-01-01 Online:2006-08-20 Published:2006-08-20

Abstract: TakingDaqingzijing oilfield as an example, the effectof the drillingmud on resistivity values of the conventional loggingwas analyzed by using the array induction logging, time-lapse logging and core mud invasion tests. The dynamic response model inversion of the resistivity logging showed that the increased resistance invasion of the freshwatermud occurred inwater layers
and the decreased resistance invasion of the freshwatermud occurred in oilwater layers and oil layers. The corrected resistivity value of the freshwatermud invasion for different pore structureswere given through comparing the time-lapse logging, the oil-base coring wells and the array induction logging with the conventional logging and combiningwith software inversion.

Key words: resistivity logging, mud invasion, fluid recognition, invasion correction

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