The Ordovician dolomite stratum in the southwest Tarim Basin is rich in oil and gas,but the reservoir is characterized by low porosity,low permeability,and strong heterogeneity.Using drill core samples,this study exam...The Ordovician dolomite stratum in the southwest Tarim Basin is rich in oil and gas,but the reservoir is characterized by low porosity,low permeability,and strong heterogeneity.Using drill core samples,this study examined the petrologic features,geochemical characteristics,homogenization temperatures of inclusions,and the genesis of dolomite in the Lower Ordovician was discussed.Results showed that in the Penglaiba and Yingshan Formation dolomite content decreased from bottom to top.展开更多
基金supported by the Research Foundation of China University of Petroleum-Beijing At Karamay[RCYJ2017B-01-002]the Major Program of National Natural Science Foundation of China-Reservoir geology and evaluation in new field[2011ZX05009-002-203].
文摘The Ordovician dolomite stratum in the southwest Tarim Basin is rich in oil and gas,but the reservoir is characterized by low porosity,low permeability,and strong heterogeneity.Using drill core samples,this study examined the petrologic features,geochemical characteristics,homogenization temperatures of inclusions,and the genesis of dolomite in the Lower Ordovician was discussed.Results showed that in the Penglaiba and Yingshan Formation dolomite content decreased from bottom to top.
