Fault Segmentation Growth Division Quantitative Characterization And Its Application In Oil Field Development

The western fault in Nan two?three areas of Sanan development area is the most complex structure on Daqing Changyuan block.Fracture with all-round development(NWW?NNE and NEE),in this paper,based on 3D seismic fine interpretation,first of all,the application of slip-distance curve and throw contour in fault plane,determine the fault type of growth: Segmented growth fault and isolation growth fault.Secondly,segmenting the NWW to growth fault,based on the fault segment growth process quantitative analysis chart,correction of the reliability of the fault plane combination.Finally,combining with breakpoints data and seismic data,implement the NEE to the reliability of fault interpretation.The fault segment vertically growth is universal,and the rock intensity is the direct cause of the segment vertically growth,thus controlling the formation process of the vertical section.In this paper,based on the segment vertically growth mechanism,the reference sequence cycle characteristics,the rock mechanics characteristics and the sandy land ratio analysis,combined with the physical simulation results,the sand-sand stratigraphic sequences the division of the mechanical sequence One of the important signs that controls the difference in rock intensity.Based on the characteristics of sequence cycle and sand ratio,it is concluded that three sets of weakly intensity mechanics sequences are developed in the western part of South Second and South Three Areas: the sedimentary units,the high II2-II3 deposition units and the high ?7-?18 deposition units.It is possible to effectively identify the fault in the vertical direction by combining the geometrical characteristics of the fault and the relationship between the strata rotation,the fault depth of the fault,the fault profile,the fault plane and the fault data.Section of the position of the growth.On the basis of this,the quantitative interpretation criterion of vertical segmental growth is made by combining the seismic fine interpretation with the segment vertically growth.On the basis of fault block growth theory,combining with the oilfield development dynamic study,think fault block growing in oil field development application mainly has three aspects: the fault plane segmentation combined control effective sealing fault zone formation,growth impact injection-production connected relations;Vertical section;the fault growth effectively guide " One well—multi-fault point " explanation,thus improve the breakpoint combination rate;fault vertical segmented growth control fault edge directional well deployment of safe distance.