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NON-LINEAR PREDICTION AND ANALYSIS ON RESERVOIR FRACT-URE FOR JIALINGJIANG FORMATION OF TONGTIE STRUCTURE

LI Qiong~1,LI Zheng-wen~2,WEI Ye~1 1.Chengdu University of Technology,Chengdu610059,China; Chengdu University of Technology,Chengdu610059,China  
Based on fracture system of reservoir with non-linear characteristics,non-linear prediction and evaluation of reservoir fracture were applied to Jialingjiang Formation T_1j_2~1 of Tongtie structure by using three non-linear parameters which directly correlate with reservoir fracture. The fractured spatial distribution of T_1j_2~1 reservoir was divided into two fractured zones which followed the trend of tectonic axes and faults.These two zones could be subdivided into 4 subzones related to the faults,stress distribution.It was confirmed by drilling that effective fracture abundance zone of T_1j_2~1 reservoir of Tongtie structure was closely related with gas abundance area.This research provided evidence for T_1j_2~1 gas reservoir exploitation in Tongtie structure and was of economic significance.
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