A Study On The Characteristics Of The Internal Structure Of Thick Reservoir In North East Block, Saertu â…¢ Reservoir Group Of Lamadian Oil Field

After years of development Lamadian oilfield, now in late-stage of high waterdevelopment. Currently the reservoir flooded serious, complicated distribution of theremaining oil, oilfield integrated high moisture content. The main direction of thedevelopment of the remaining oil in a single sand body inside or mobile units. Summarizesthe development of practical experience, fine geological studies focused on high water cut isstill thick oil, a great influence on the internal structure of thick oil remaining oil distribution.Lamadian Oilfield fluvial sedimentary environment-delta facies, sand well-developed,mostly thick oil. Firstly, combined with signs of sedimentary facies analysis, determine thetype of Sa â…¢ reservoir sedimentary facies and microfacies river delta into two categories,corresponding to each micro-analysis of logging curves, sand development was carried outwith the scale study of the spatial distribution; Analytic Hierarchy basic principles of theinternal hierarchy of thick oil was analyzed, and the corresponding level of sequenceboundary identification, combined with previous results depositional environment, loggingidentification standard for the interface of the layer structure be analysis to the distribution ofthe frequency and distribution of these two indicators to characterize the density distributionacross the six small layer sandwich Sa â…¢ group; secondly, the application of geostatistics andgeological modeling technology, a3D geological model, including: structural model sandbody model, mezzanine. Distribution describes the interface layer, using sophisticated digitalto analog technology, numerical simulation study of a typical well-group study carried out inthe region to analyze the impact of the interlayers of water seepage, and thus determine theimpact of the internal structure of thick oil remaining oil distribution,to determine the typeand distribution of the remaining oil to achieve quantitative description of thethree-dimensional characterization of the fine structure of thick oil and residual oil. Finally,the work area two wells set of experiments, positioning fracturing well and layer selectionresearch on thick reservoir structural analysis results are verified, get good results.