LEI Ke-hui~(1,2),TAO Shu~1,CHANG Xiu-fen~3,HU Han-min~4 (1.Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism,Ministry of Education,China; School of Energy Resources,China University of Geosciences (Beijing),Beijing 100083,China; 2.American PST Corp., Beijing 100101,China; 3.Halliburton(Tianjin) Beijing branch of energy service companies,Beijing 100004,China; 4.CNPC.NILE.,Beijing 100034,China)The characteristics of rock association,reservoir space,pore structure,pore distribution of Jia 2 and Fei 4 reservoir in Shuangmiaoehang structure,Puguang gas field were expounded.Meanwhile,the study of reservoir evaluation was done,and the correlations among the porosity,dolomite content and grained clastie content were discussed. The results show that Jia 2 reservoir is mainly composed of dolomite,whereas,Fei 4 reservoir is mainly composed of limestone.Jia 2 and Fei 4 reservoirs are mainly pore-fracture and fracture types,and Jia 2 reservoir develops more fractures than Fei 4 reservoir.Jia 2 and Fei 4 reservoirs have strong heterogeneity and different distribution characteristics,in which the physical property of Jia 2 is relatively superior to Fei 4.The relationship between the porosity of Jialingjiang reservoir and the degree of dolomitization shows significant positive correlation in three-steps.Meanwhile,it shows significant positive correlation between the porosity of Jialingjiang reservoir and the grained elastic content too,which is nearly two-steps.
2010 04 v.16;No.68 [Abstract][OnlineView][Download 607K]