Analysis Of Structure Interpretation And The Development Potential With Well Seismic Combination Of S P G Oil Reservoir In Nan Er Xi Oilfeild

Since2008，daqing oilfield has worked in well combined with seismic with fine reservoirdescription of changyuan comprehensive promotion，in order to speed up applicated of thestructural interpretation results，perfect well combined seismic fault interpretation，microstructure identification and well combined with seismic amplitude integration structuremodeling technology，through the forward model，frequency division interpretation，seismicattribute recognition of3d visualization and other key technologies，initially formed smallfaults and the change of lithology identification method，the small fault interpretationprecision has improved，and implemented the3m small slip fault identification. Using thestructural trend residual surface analysis，horizontal time slice，seismic curvature method toidentify the micro structure，and implemented the micro structure in Nan er xi oil feild; Usingsmall contour interval，small bin，convergence grid method for micro amplitude structuremapping，completed the top of S，P，G oil layers of pure small amplitude structure map.Carried out well combined with seismic the feature of seismic wave group and planar seismicattribute analysis，Sedimentary faced classification seismic constraints，analysed the interwellsand body connecting relation from the perspective of the seismic data，and then on the planeanalysed sand body distribution and determine the sedimentary microfacies，distribution.Preliminary analysis the interwell sand body disconnected should be the secondtype reservoir was an important reason for polymer injection difficult. Established structuremodel，to deepen the fault structural characteristics and reservoir characteristics，providedtechnical basis for guiding Nan er xi oilfeild development adjustment.This paper completed12km2SI-GII7oil reservoir group of top surface seismichorizon track work and well combined with seismic fault interpretation and fault combination.Set up a small fault and micro structure identification process，further implemented thedistribution characteristics of fault in Nan Er Xi oilfield. Through the forward model，analysissmall fault and lithological changes of seismic response of the forward model. Throughfrequency seismic section， the3d visualization technology and well logging curvecomparison and comprehensive to identify small fault，formed the small faults and the changeof lithology identification method. To carry out the well data residue micro structure analysis，highlighting the local micro range. In combination with the change of fault，comprehensiveanalysis the current well pattern，well spacing and development condition，preliminary selectsthe potential points20in PI group，injection-production system adjustment potential areas11.