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Fine Reservoir Research Of Well-Seismic Combination Of Sal Segment In The X Area

Posted on:2013-02-17Degree:MasterType:Thesis
Country:ChinaCandidate:X ChenFull Text:PDF
GTID:2210330374966117Subject:Earth Exploration and Information Technology
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As the Daqing Changyuan oil field has been developed for many years, excavation ofunderground residual oil with high difficulty, so this paper has been under the guidance ofhigh resolution sequence stratigraphy, sedimentary petrology and petroleum geology theory,fully integrated seismic, logging and other geological data, to improve the inter-well reservoirdistribution characteristics' precision, and provide reliable basis for further understanding ofoil-water transitional zone.This thesis mainly uses the thought of well-seismic integration, synthetic seismic recordas a link, comparison the horizons of single well and seismic horizon to identify consistencyof seismic horizon and geologic horizon, then launches the seismic geology horizoninterpretation work, to study SaI formation structure distribution characteristics in theresearch area again, at the same time using trend surface analysis to carry out themicro-amplitude structure identification, understanding micro-structure distributioncharacteristics in the research area. In view of the depositional setting and the sandstonedistribution characteristics, basing on frequency compensation method of reconstructioninversion and seismic attribute extraction are carried out. Under the guidance of seismicsedimentology, sedimentary petrology theory, through the analysis of drilling lithology andelectrical response characteristics, contrasting curve rhythms and cycles, well sedimentarymicro-phase characteristics are described quantitatively. Combining with the results ofseismic inversion and seismic facies, the study of sedimentary micro-phase is completedfinally.The results show that using the well-seismic integration method the line of SaI oil groupof central oil-water boundary is extrapolated compared with previous research results,waterarea has increased1.270km2, micro-amplitude structure trap area is2.958km2, the river hasthree kinds of changes: continuity, scale and channel combination with the thought of well-seismic integration. On this basis, the results of research provide beneficial reference forinfilling adjustment, oil field extension and further evaluation.
Keywords/Search Tags:well-seismic integration, fine structural interpretation, oil-water transitionalzone, seismic inversion, sedimentary micro-phase
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