西南石油大学学报（自然科学版）2016，Vol.38Issue(5)：50-58,9.DOI:10.11885/j.issn.1674-5086.2015.05.14.02
井震结合断层解释应注意的几个问题
Discussion on Several Issues of Integrated Well-to-Seismic Fault Interpretation
摘要
Abstract
The structure interpretation method based on well-seismic integration gradually grew mature and got promotion and application. But some problems are found in the application process:synthetic seismogram calibration,identification of low-level small fault,structure illusion under lower walls of large faults,mismatch of well-seismic breakpoint. According to time-depth relationships of the VSP,the acoustic curve is corrected,thus producing accurate synthetic seismograms. The problem of small fault identification is solved by the forward model and with information of tectonic attribute data such as spectral decompositions. By the technique of pre-stack depth migration(PSDM)with acoustic constraints,the accuracy of structural imaging is further improved,and the problem of the false structure and the mismatch of well-seismic breakpoints of seismic profiles in time domain is solved. The application of integrated well-seismic structure interpretation technique effectively guides the spatial positions of the breakpoints,spatial combinations of faults in the typical block of placanticline oilfield,and further improves the accuracy of fault interpretation,thus deepens the understanding of the faulted structure in placanticline oilfield, effectively guides the deployment of new wells and injection-production adjustment near faults,and provides a reliable basis for effective development of placanticline oilfield.关键词
断层/标定/假象/井震结合/大庆长垣Key words
fault/calibration/illusion/well-seismic integration/Daqing placanticline分类
能源科技引用本文复制引用
王彦辉,司丽,朴昌永,李操,王元波..井震结合断层解释应注意的几个问题[J].西南石油大学学报（自然科学版）,2016,38(5):50-58,9.基金项目
国家科技重大专项（2011ZX05010001）。 （）
