Development Characteristics and Main Controlling Factors of Reservoir Space in Northern Yujiang Strike-Slip Fault Zone
In order to understand the development characteristics and formation mechanism of reservoir space in the crushed zone of a strike-slip fault,based on the field outcrops,remote sensing images,and core testing data,the reservoir space in the northern Yujiang strike-slip fault zone was identified and quantified,and its main controlling factors were discussed.The results show that the crushed zone of the northern Yujiang strike-slip fault zone can be divided into a northern tenso-shear segment and a southern compresso-shear segment in a plane view.The two segments are different in the reservoir space development characteristics.The tenso-shear segment has larger fracture aperture,while the compresso-shear segment has larger fracture length,fracture density,fractured area,and cave area.Overall,the com-presso-shear segment has larger reservoir space.The tectonic stress of the strike-slip fault zone is the external factor determining the devel-opment of dominant reservoir space,while the thickness and mineral composition of rocks are the internal factors controlling reservoir space development.The carbonate rocks with a thickness greater than 1 m and a calcium carbonate content of less than 70%can be re-worked by compresso-shear process to form favorable areas for the development of fractured-vuggy reservoirs.
万方数据
维普
