Main control factors and distribution of carbonate reservoirs in the Hexiwu structural belt

The hydrocarbon accumulation conditions of carbonate buried hills in Hexiwu structural belt are superior, and the hydrocarbon accumulation is controlled by multiple factors such as stratum, structure and reservoir, so it is the focus of oil and gas exploration to find high quality reservoirs. Through the analysis of drilling, logging and core data, it is clear that the carbonate reservoir space in Hexiwu structural belt is mainly composed of intergranular pore, tectonic dissolution fracture and tectonic fracture. Sedimentary facies, diagenesis and tectonic movement are the main controlling factors of carbonate buried hill reservoir formation. The favorable sedimentary facies belt is the foundation of reservoir development, the favorable diagenesis is the guarantee of reservoir development, and the favorable tectonic movement is the key to reservoir development. Through the stratified section to carry out comprehensive reservoir prediction, the accuracy of reservoir prediction results is significantly improved, which provides a foundation for oil and gas development.