Fault characteristic and reservoir controlling in ShunX well area, central Tarim

Based on regional geology and seismic data, the NE strike-slip faults are developed by the redefinition of fault active period, which shows paralleled high-steep continental strike-slip fault from the Early Caledonian to episode I of the Mid-Caledonian, extensional en-echelon tulip-flower structure during episode I of the Mid-Caledonian to the Early Hercynian period, and compressional en-echelon positive-flower structure during the Mid-Late Hercynian. NE strike-slip and NW zoning of sinistral strike-slip tectonic framework is formed by NE strike-slip fault of wells ShunX1, ShuntuoX2 and ShunX3. Weak NW-striking concealed faults are found in the study area. Cave and fracture reservoirs of carbonate rocks are certain controlled by fractures formed by NE strike-slip faults and following hydrothermal activities, which forms zone distribution of seismic reflection moniliform along NE strike-slip fault within 10 km (3.4 km in average), and most developed in cross position within NE strike-slip fault and weak NW-striking concealed faults.