The Comprehensive Adjustment Plan Research In Xinli Oilifeld

The presence of Xinli oilfield bad well condition, well pattern does not adapt andinjection-production system contradiction are expounded in this thesis, the problems affectingfactors were analyzed, on the geological unit of Xinli oilfield development effect wereevaluated, the main index impact factors, reconstruction of Xinli oilfield undergroundunderstanding of system, reconstruction of well network structure.Through the completion of the above work the following several aspects:1) theachievements and recognition of Xinli oilfield134m linear water injection pattern, to establishthe injection-production relationship, the old encryption after adjustment for formationpressure has been gradually restored, decreasing mitigation; peripheral area injection oil wellnumber ratio, well spacing is too large, the injection-production relationship difficult establish,well pattern does not adapt;2) the residual oil distribution regularity: A, flat surface of theremaining oil is mainly distributed in the structural high, microfacies sand body side edge part,edge, and between wells and well row injection-production relationship is not perfect; B,longitudinal upper remaining oil is mainly distributed in the main reservoir of upper and twomain layers; the internal longitudinal remaining oil mainly distributes in the rhythm of oillayer within the physical condition is opposite poorer part and top layer;3) through the blockdevelopment effect evaluation, think of Xinli oilfield14fine geological unit, the new228block in a type of development level, the remaining blocks are in the two or three stages ofdevelopment;4) by geological unit of recovery calibration revisited, from the actual results ofcalibration and three geological unit development characteristic contrast analysis, calibrationresults were compared with the actual;5) the Xinli oilfield casing deformation wellsAccounted for nearly40%of the total number of oil wells, and the casing changing well2-3has a potential to dig go to layer, effect of development;6) the Xinli oilfield favorableregional deployment of horizontal well can realize the goal of tapping the potential ofremaining oil, at present,6wells have been drilled, drilling rate of more than90%;7)3Dseismic technology can be applied in the oil field development, geological and seismic+reservoir development+exchange can maximize the results predict favorable strip, such assoft3-22block Heidimiao oil layer,217new blocks;8) Ji Hei102well put into productionafter the yield obtained a breakthrough, prove Heidimiao oil layer with potential space.