The Researchment Of The Characteristics Of The Carboniferous Volcanic Fracture And Crack Structure In Eastern Junggar Basin

In recent years, the soaring international oil prices, on the one hand, the continuous growth of human needs, on the other hand, along with reservoir development technology innovation, as well as the areas covered by expanding the previously less involved in volcanic reservoirs in recent years as the focus of the exploration, development, and especially in recent years many of the Jung gar Basin, internal volcanic rock reservoir, showing the huge within the Jung gar Basin, volcanic oil and gas reservoir exploration and development potential. Volcanic rocks within the macro-fracture and micro-crack sconstruct a very important significance for the oil and gas storage and transportation, deep faults in the macro-channel oil and gas migration, a large number of micro crack sand development of oil and gas accumulation provides a good accumulation of place. This article in the eastern Jung gar Basin, Western Springs area of Carboniferous volcanic rocks as a key object of study, the use of recorded, logging information, and lithology, fracture and tectonic fault structures in the Carboniferous volcanic rocks in the region, through the research we found that the eastern part of the Jung gar Basin has been the role of shear stress, the formation of the tectonic pattern similar to the checker board lattice, the shear stress field in the study region in different directions, forming a different stress field, there will be regional extensional environment, but also squeezed environment, where north and south to the tendency of near-vertical tensile fracture is the formation of a regional extensional environment, formed a trend nearly east-west direction of the thrust nappe compressional structural faults. Accompanied by the formation of thefracture, and fracture around the development of a large number of micro-cracks, volcanic facies, formed under compressional fracture along its trend, the cracks tectofacies north-south extensional environment to fracture to be development; the actual results show that the area of Carboniferous volcanic rocks oil and gas reservoirs cracks are well developed, almost all volcanic phases have varying degrees of development of cracks; relative to the north-south direction of the fracture, extends east-west direction of thefracture the surrounding microfissure more development; fault intersections of micro-cracks is more developed.