The Study Of The Relationship Of Four Characteristics Property And The Establish Of Interpretational Criteria For Intermediate And Deep Gas Reservior

This text takes the intermediate and deep gas reservior of the Gubei zonefor example.It contains two sides of content,which are relationship of the fourcharacteristics,such as lithology, electrical property, physical property andoil-bearing property; and interpretational criteria.Because of various of reactionof the sedimentary process, compression, cementation and denudation,etc,thereservior has the performance of low porosity and low permeability.Besides, thereservior is heterogeneous between reservoir.Moreover,the fluid in the reservoiris very complex..All of these increase the difficulty in evaluating the reservioraccurately.In view of this case,the text utilizes coring data,FMI logging data onthe base of acquiring first hand information such as experimental analysis, welllog, well testing.Also,the differet behaviour of different lithology and differetdepth reservoir is be considered in this text.Referring to various of loggingdatas ,the response of gas reservoir can be conclude . Microscopic pore structureis investigated detailed.The relationship of the electrical property, lithology,lithology and oil-bearing property is also investigated.Futher more ,theinterpretational criteria of porosity and permeability is established.Using theinterpretational criteria ,some well datas are evaluated secondly,and the result is very coincident with the actual result.Meanwhile,the interpretation model of gasreservoir ,low productivity gas layer and dry layer is first put forward.Andalso,in this text , the synthetical use of NMR logging,FMI logging and the GRspectrum et,is the first time.And building the identify type of lithofacies is alsooriginality.