Lithologic Reservoirs ›› 2017, Vol. 29 ›› Issue (3): 76-82.doi: 10.3969/j.issn.1673-8926.2017.03.009

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Integrated dynamic and static identification method of fracturedvuggy carbonate reservoirs: a case from the Ordovician in Tarim Basin

CHENG Fei   

  1. Oil & Gas Exploration and Development Research Institute of Victorysoft, Shandong Victorysoft Co., Ltd., Dongying 257000, Shandong, China
  • Received:2016-07-11 Revised:2016-09-21 Online:2017-05-21 Published:2017-05-21

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Abstract: The carbonate reservoirs are characterized by strong heterogeneity, anisotropy and complex genetic mechanism. The vuggy, caves and fractures are associated with each other in variety of different genesis, formation mechanisms and scales in a Ordovician carbonate reservoir of Tarim Basin, thus it is difficult to classify carbonate reservoir types by using single static data. The static and dynamic data from 145 wells and their response characteristics in different types of reservoirs were analyzed, and well testing permeability, wellbore storage coefficient, well control radius, acid fracturing pressure of pump off, cumulative production hydraulic curve, drilling blowdown leakage, seismic reflection characteristics and logging curve were selected to establish the identification model of carbonate reservoirs. The reservoirs were divided into three types:cavity-fracture, cavity and fractured-vuggy. This method overcomes the limitation of identifying reservoir types by single factor in the past, ex-pands the research methods of the combination of dynamic and static methods, and provides a basis for the identification of carbonate reservoirs.

Key words: reservoir characteristic, diagenesis, porosity evolution, the second member of Bayingebi Formation, Chagan Depression

CLC Number: 

  • TE132.1
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