Study On The Permian Reservoir Tectoclase In Wuxia Area Of Junggar Basin

The scale of tectoclase in Permian reservoir in is stated high in Wuxia Area of Junggar Basin.As important channels in which oil and gas can seep,tectoclase is also main oil storage space and dominate Reservoir.Linking geology and maths,we research stress of target area,at last forecast tectoclase parameter.Aiming at ensureing the direction of rock,we recognize tectoclase of reservoir by the way of rock observation,image logging and seismic data.We also research and analyse the character of Permian reservoir tectoclase which be northeast and northwest tend towards conjugate tectoclase,for example attitude,aperture,filler and so on,so that we can analyse origin and formation time.In Wuxia area the Permian reservoir tectoclase is master of stress,so it is necessity direction that tectoclase parameter is calculated by the way of stress and straining.Basing the predecessors study,we think that palaeostress come into being tectoclase and curren stress could not bring tectoclase while it could alteration tectoclase.Combine mechanical parameters of rock and palaeostress condition,first we must based rock split norm for Wuxia area that namely Mohr-Coulomb rule,then establish the quantification relationship between stress and straining with tectoclase aperture and density in palaeostress field,at last found the quantification relationship between stress and straining with tectoclase aperture and density in curren stress field.After researching structure evolvement,it is thought that Hercynian and Indosinian movement bing out tectoclase which be independent of movement after Jurassic.On the base of researching the character of Permian reservoir tectoclase,we finish quantity calculation of tectoclase aperture and other kinds of parameter by the way of stress field numerical simulation.We calculate tectoclase parameters from dual laterlog data and observation result.Aiming at the complanate and vertical character of tectoclase.Validating another result with one, it is more refined that tectoclase parameters are confirmed and tectoclase porosity and calculated in the way of reservoir tectoclase evaluation.On one hand,this paper offers clue and method for research on fracture in low permeability reservoir in other areas.On the other hand it coach exploratory development in a certain extent in wuxia area,which is also the call for this paper.