Study On Reservoir Characteristics And Four-property Relationship Of KT-? Reservoir In North Tluwa Carbonate Oil Reservoir

In this paper,the sedimentary characteristics of the target area were studied.Based on the sedimentary characteristics of the Carboniferous system and based on the results of previous studies,the four subfamilies of the evaporating mesa,the restricted mesa,the open mesa,and the mesa fringe of the North Tluwa were completed.9 kinds of microfacies recognition.At the same time,the depositional evolution of the KT-? layer was studied.It was proved that the lower part of the ? layer was dominated by the terrace edge beach,and the upper ? layer was dominated by the open terrace.The study of reservoir characteristics is the basis of the “Four-Property Relationship” study.Through the investigation and analysis of the core analysis and analysis data,this study has completed studies of petrological characteristics such as reservoir rock and mineral characteristics,reservoir space types,and pore structure characteristics.Log comprehensive interpretation provides the conditions.Among them,the mineral component of KT-? layer is mainly calcite,and the reservoir space is mainly intergranular and intragranular.The “Four-Property Relationship” study and well log interpretation of the KT-? layer in the North Troyes oilfield provide support for the further rational development and capacity building of the carbonate rock reservoir." Four-Property Relationship " refers to the existence of some relations between reservoir lithology,electrical properties.Through the study of lithology and electricity,a synthetic plate U,IMP and GR and CNC were used to establish a cross-cutting plate.The criteria for lithology classification were determined.The physical and electrical studies were established.Mathematical interpretation models for various types of porosity and permeability;through oil and electrical studies,the lower limit standard for oil reservoirs was established,and oil and gas layers,oil and water layers,poor oil layers,water layers,and dry layers were divided.