| Manasi anticline tectonic in the southern margin of the Junggar basin which is mainly controlled by the Yanshan Himalaya middle-late strongly thrusting effect, has the characteristics of multi period activities. The main structure of the area was formed in the middle of Yanshan, and finally formed in the later stage of Himalaya.In this study, the Paleogene is the main target strata. To carry out fine 3D seismic data interpretation work and the implementation of the Manasi anticline traps and favorable structure. On the basis of further analysis of oil and gas reservoir characteristics and main controlling factors, in order to guide the oil and gas exploration in this area, to provide reference for the study of oil and gas reservoir forming characteristics in the adjacent area.On the basis of fully absorbing the previous research results, the comprehensive calibration of seismic geologic horizon is completed by drilling well logging data, VSP and synthetic records. Based on the analysis of regional geological conditions, the reasonable structural styles of the area are constructed by using 3D seismic data and outcrop data. Under the guidance of the structural style, using a variety of methods to identify small faults, to carry out structural fine interpretation and fracture plane combination research, to clear fault development period, the plane distribution law and the implementation of fracture development characteristics. Based on the analysis in the early stage of reservoir, through drilling failure analysis and strengthen the analysis of tectonic evolution, to determine the controlling function of different faults (systems) on oil and gas, to determine the main controlling factors of hydrocarbon accumulation, and to deepen the understanding of fault control and reservoir formation.The characteristics of structural reservoir control in Manasi gas field provides a reference for understanding the characteristics of oil and gas reservoirs in Huoerguosi. |
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