Daqing oil field in North West Block Lamadian Reservoir Heterogeneity
|Keywords||Lamadian Oilfield Reservoir Heterogeneity Sand Remaining oil|
Lamadian oil field for deposition from the source, so the reservoir development thicker, intraformational heterogeneity is serious. Due to serious heterogeneity of reservoir, lead to rising layer and the interlayer contradictions within regular measures effect becomes poor, speed increase, decrease of production including imbalance, and the remaining recoverable reserves produced difficulty increasing, seriously affected the reservoir recovery efficiency. Based on lamadian oil field in north west block as the study area, from the causes of sand body divided into sand body types, analysis of various types of sand body reservoir heterogeneity and characterization methods. Analysis according to the sedimentary characteristics of different types of sand body reservoir within the layer, plane and interlayer heterogeneous feature, and the sand body heterogeneity characteristics and the combination of well pattern well spacing, according to the direction of injection-production relation with the direction of the sand body deposition and the distribution of interlayer insulation, comprehensive analysis of lamadian oil field in north west block dynamic development data, determine the horizon of enrichment of remaining oil in vertical and in plane enrichment area. According to the causes of the formation of remaining oil, to take corresponding exploration of oil and water Wells.