Sheling Group Of Fine Structural Interpretation In Moliqing Area

According to the geological characteristics of Moliqing area, using the advancedgeological theory as a guide, with seismic data, combined with drilling, logging and geologicdata, a multidisciplinary mutual penetration of the integration of the fine reservoir descriptiontechnology and methods are adopted, focusing on the Moliqing area, interpreting finestructural of Sheling group with top and bottom surface and three layers of an internalunconformity, and then stratum division and study of fracture characteristics. On the structuralmaps of bottom surface of Sheling group, identified27fault block traps.8fault nose traps and1faulted anticline traps; on the structural maps of unconformity of Sheling group, identified9fault block traps,8fault nose traps and1faulted anticline traps; on the structural maps of topsurface of Sheling group, identified6fault nose traps,1fault block trap and1faultedanticline trap.Through3D high resolution seismic in Moliqing area of fine interpretation of theresearch process, we can fully realize the Moliqing area, Sheling group is mainly developednormal fault, the fault direction was the main North East, North West and East Developmenttrending faults; in the plane, faults are mainly distributed in the southeastern margin of thebasin Jianshan tectonic belt and Dagushan slope belt. On the whole, there are a plurality offaults, varying in size and trend. Fault in the section are mainly steep normal fault, a fault stepshape distribution of the northwest edge; development of shaped fault fold belt, showing thatlate reverse extrusion structure with strike-slip nature. The main section of the developmenthistory of structure profile analysis showed: a section to Sheling group of sedimentary period,Moliqing fault depression experienced three stages of initial fault depression, fault depressiondevelopment and stability; although each period of fault development there are certaindifferences, they have strong inheritance. Mainly discussed tectonic traps in fault block andfault-nose, also developed individual faulted anticline trap. Analysis of structural trap, trapformation and destruction of morphological evolution period, combined with the generationand expulsion of hydrocarbon and analysis of the valid path for oil and gas migration, andmaking reasonable evaluation of structural trap effectiveness and the prospect of basin oil andgas resource in future.