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通过对曾岔-长官庙地区长9储层的岩心、试油数据及测井等资料的收集、整理、校正、分析,进行“四性”关系研究。分析认为,长9储层以浅灰色、灰色岩屑长石砂岩和长石砂岩为主,岩性越好,对应的物性越好,录井显示级别高,对应的深感应电阻率值也高,含油性也好。综合研究后,确定了有效储层下限标准:孔隙度≥7.2%;电阻率≥30Ω·m;声波时差≥214μ/m。
Through the collection, collation, correction and analysis of core data, oil testing data and well logging data of reservoir 9 in Changcha Temple - Changguanmiao area, a study on the relationship of “four nature” was carried out. The analysis shows that the Chang 9 reservoir is dominated by light gray and gray lithic feldspar sandstones and feldspathic sandstones. The better the lithology, the better the corresponding physical properties, the higher logging indication level and the corresponding deep induction resistivity value. Oily, too. After comprehensive study, the lower limit of effective reservoir was determined: porosity ≥7.2%; resistivity ≥30Ω · m; and acoustic time difference ≥214μ / m.