The Application Of Development Seismic In The Complex Fault Block

In exploiting the complex fault block oilfield,only depend on borehole data can’tmeet the demand of exploitation,using the exploiting seismic technology is the keypoint.LiaoHe Basin is a typical rifted basin，the fault cuts it in vertical and horiztionaldirection. The fault block reservoir is the typical in the basin. the upper sourceDeposited quickly,with the wide lithology Lateral change. The double complexityof tectonism and sedimentation refine the inner fault in development area, increase thedifficulity in the corner parts development and waterflooding development.Recognizing the micro structure and small fault, forecasting the thinn reservoir,drawing the buried hill reservoir insider fissure are the difficult points.In my thesis, beginning with Seismic reflection wave theory and the theory ofsedimentary geology, the main line is application and researchment of thedevelopment seismic technology. deepening the3D seismic、VSP、drilling、 mudlogging、 well logging，and researching the basic information on dynamic production、emphasizing Comprehensive information and simple and true technology,solvingthe geology difficulty effectiveness are my goals.deeply research and mine3Dseismic reflection wave dynamic characteristics and the formationstructure,deposition,lithology and the relationship between fluid internal geologicalbody,refine the microstructure in the development zone, the spread of the small faultand reservoir, research and extend the VSP technology in the oilfield exploitation andapplication,realize development seismic Geological horizons fine calibration andborehole micro structure, implement the small faults and forecast the reservoir.withthese basic information on the reservoir lithology, electrical, thickness, level change tocarry out the study of sedimentary microfacies model.depend on the geologicaldeposition rules to forecast the reservoir arrangement,especialy the front part of thethin reservoir.using the VSP horizontialwave technology to resrarch buried hill fissure and draw the inner.There are several creative points in my thesis: (1) The paper introduced the development of seismic information into traditionalstratigraphic division and correlation method, control of lateral changes, stratigraphicoccurrence and stratigraphic contact relationship, effectively solve the fault basinbecause of complex fault, underwater fan sedimentary reservoir facies change fast,interlayer unstable, producing angle steep contrast problems; in-depth analysis of theshort physical margin sedimentary strata, prosodic difference, signs of seismic geologichorizon calibration method of geological conditions of layer less, the zero offset VSPcalibration is a key to develop effective seismic applications, effectively guide theproduction of oilfield development;(2) proposed a set of innovative and effective development of seismic technologyprocess and method: use of well seismic technology, i.e. seismic information and wellstatic and dynamic information, combined method of production, study and tap the3Dseismic reflection characteristics with layer structure, lithology, sedimentary and thefluid of geological body, thinning zone micro structure, small fault and reservoirdistribution; the research and promotion of non-zero VSP recognition well technologyby micro structure, small fault and thin reservoir distribution, as a supplementarymethod of3D seismic data quality is poor; the establishment of a set of sedimentarymicrofacies model of technical method and development of seismic information arecombined to predict reservoir distribution, prediction of reservoir sedimentaryextending edge direction and sand body, especially the thin front parts of the layerdistribution;(3) The paper carried out non zero offset VSP downlink wave technology research,prediction of fracture distribution in buried hill. Based on the characteristics of shearwave splitting in the crack, development density and direction of buried hill fracture.In Liaohe Oilfield, the first use of VSP wave in buried hill reservoir fracturedistribution is studied, and see the good effect, provide the instruction method forburied hill reservoir;...