Lithologic Reservoirs ›› 2008, Vol. 20 ›› Issue (3): 89-94.doi: 10.3969/j.issn.1673-8926.2008.03.018

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Application of dual laterolog interpretation of fracture parameters in Ar an Field, Iran

XIAN Wei1, WU Weihang2, LI Xiaogang1, XIA Ming1   

  1. 1. College of Energy Resources, Chengdu University of Technology, Chengdu 610059, China; 2. Research Institute of Petroleum Exploration & Development-Northwest (NWGI) , PetroChina, Lanzhou 730020, China
  • Online:2008-09-15 Published:2008-09-15

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Abstract:

The Tertiary Qom Formation of the Aran Field, located in the Kashan Block of Central Iran Basin, is a set of fractured carbonate reservoir with lowmatrix porosity and permeability. For the study of fractured reservoir, the drill core and imaging logging data are the most straightforward and credible means to discern the development situation of natural fracture in the reservoir, but these are expensive. In the traditional logging methods, the Dual Lateral Logging (DLL) is of stronger competence of convergence, it is very useful to recognize the fractures in the resistive formation. On the basis of previous studies on the numerical model and inversion methodology of dual laterolog response, we establish an interpretation model of fractured reservoir parameters to estimate the fracture parameters of sub-member C4 of the Qom Formation in this block, and then compare the results with the core, imaging logging data and well testing data. The result indicates that this method can exactly evaluate the fractured reservoir in this area.

Key words: sedimentary systerm；sedimentary facies； Xia&lsquo, ermen Oilfield；Biyang Sag

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