Accurate3D-seismic Analysis And Interpretation In Wen’an Slope Of Huabei Oilfield

Additional reserves of three-dimensional seismic exploration have made an importantcontribution for oil and gas industry, which have a pivotal role in the oil and gas explorationand development. As the decreasing of the cost of collecting and processing, shrinking ofthe cycle, popularization and application of treatment technology of three-dimensional, andthe rapid development of computer technology, three-dimensional seismic explorationtechnology develop rapidly in recent years. Collection of data, processing and interpretationmethods continue to make new breakthroughs, three-dimensional seismic interpretation hasbecome committed to the development of technology at home and abroad.Three-dimensional seismic data interpretation is the main step of three-dimensional seismicexploration. Seismic interpretation is the core of the entire oil and gas exploration,precision directly affects the exploration efficiency.In recent years, increasingly used in the oil and gas exploration and development ofthree-dimensional seismic data, three-dimensional seismic resolution and interpretation oflevel is constantly increasing. With the improvement of seismic interpretation techniques,establishing relationships between seismic attributes and petroleum physical characteristics,enabling of the lateral prediction of reservoir rocks and rock formations, in present inpetroleum exploration, development, keep more and more attention.Wen’an slope of Huabei Oilfield near BaXian oil-gas source depression, which hasfavorable structural conditions, is a good place for oil and gas enrichment. Su12~Su81tectonic belt development with complex of land phase broken block oil and gas reservoir,which has been found and production more than20years so far. Through the drilling, welltesting and produce testing, we have found Ed, Es1, Es2, and Es3, more sets containingreservoir department, as exploration development of continued carried out, on undergroundgeological structure of awareness also in constantly in-depth. But as a result of all partiesthe information limit, structural features have not refined reservoir distribution is not clear,and control factors of reservoir is not clear, so it urgently need to find new drilling targets.This research through to the three-dimensional seismic data material analysis andstructural fine explained, and the main reservoir of reservoir distribution forecasting,according to the reservoir has found that the reservoir and the cover of development, distribution characteristics, and the fracture characteristics of the system, the sealinganalysis on fault. And then combining with store cover configuration, and the distributioncharacteristics of reservoir, this paper analyzes the accumulation mode, are potentialanalysis, looking for favorable structural trap, and pointed out the oil and gas explorationpotential. The next step of the drill Wells recommendations for adding new recoverablereserves and production capacity to provide for and reservoir evaluation for the next stepand put into development provides the basis.Through a combination of logging, earthquakes, oil production test, test data on Wen’anslope Su12~Su81study on comprehensive geological tectonic belt, which has been foundseveral sets of oil-containing from Dongying to the third member of Shahejie formation. Itshows that the area has good accumulation conditions and higher productivity of reservoirs,with larger exploration areas and potential. With construction research, logging-constrained inversion, development, study results of fault sealing, filtered out in threerelatively favorable and larger traps, as the focus of the next drilling block.