The Comprehensive Research Of3D Seismic Data In The Wangfu Faulted Of Songnan

Wangfu sag in southern songliao basin, the purpose layers step-by-step city group2, buried depth,3500-4500m. Natural gas distribution is mainly controlled by lithology, reservoir types for the author classifies volcanic clastic rock lithologic gas reservoir. The biggest volcanic clastic rock reservoir porosity is19%, average5%-5%, the average porosity is7%, the biggest permeability1mD, generally0.020.2mD, average0.05mD. Formation lithology combination relationship is very complicated, the development of a variety of lithology, totally can be divided into12, is composed of three types of lithology, sedimentary rock (30%), there are three kinds of lithology, tuffaceous shale, mudstone and coal seam, respectively, heavy volcanic clastic rock (62%), there are four kinds of lithology, respectively setting breccia, breccia tuff, low limestone and shale tuff, volcanic clastic rock (8%), there are five kinds of lithology, agglomerate, volcanic breccia, breccia tuff, containing brecciated tuff and dissolved breccia tuff. As the main reservoir of volcanic clastic rock and volcanic clastic rock and sank79%volcanic clastic rock.High yield industrial air, multi-port Wells obtained in the region has a good exploration prospect and scale of the reserves value. Therefore, the second member of the yingcheng formation volcanic clastic rock reservoir prediction inversion study and application of the proved reserves of submission and the crucial step well placement.This article is based on3d seismic data in the region as an example, this paper analyzes the regional tectonics, earthquake microfacies and interpretation techniques such as comprehensive research.