Xing Zi-chuan Oilfield Zhang Cha Qu Chang 6 Reservoir Geological Characteristics Of The Study

Research area in Huaziping Zhangcha of Xingzichuan oil field, which exploration area amount to 120km2 and is located in the middle of Ordos basin and Northern Shanxi monocline. Chang 6 member is the major oil producing zone. From exploration and development of its basic features production horizon structure, deposition, yet in-depth study, to increase productivity. In order to improve productivity and regulate development performance, it needs to have a comprehensive and deep awareness to the reservoir geologic characteristic in the research area. Therefore, to study 6 reservoir characteristics mayor Zhang fork has important theoretical and practical significance.The thesis is theoretically based on petroleum geology, sedimentary petrology, reservoir geology, reservoir description and reservoir evaluation methods as the theoretical basis. Under basic geological conditions and applied with rock core observation cast slice about reservoir research, it researches the sedimentary microfacies, law of spread of sand body, reservoir petrologic character, microscopic reservoir pore structure characteristics, diagenesis, reservoir physical property character, reservoir heterogeneity.The majior type about sandstone classification of Chang 6 member is feldspar-lithi cfine-sandstone. The degree of sorting is well.The clastic granule mostly is subangularit y and linear junction. The sandstone reservoir interstitial material of Chang 6 member mostly is authigene and cementing material content is the major part. The research are a major pore type is corrosion intergranular pore, next si juvenile origin intergranular pore and intragranular dissolved pore. The average pore diameter and throat size of Ch ang 6 reservoir is 70μm and 0.74μm. It belongs to axial canal-thin throat and microbo re-micro thin throat. The research area diagenesis mostly is compaction, pressolution, c ementation, denudation, cataclasis and so on. The compaction, pressolution, cementation, denudation is the most significant effect on reservoir physical property.Geological data combined with the deployment of development wells, conduct research a nd development regularity of sedimentary facies reservoir, a comprehensive evaluation of rese rvoir, to lay the foundation for the geological and reservoir development and management dev elopment adjustment. To achieve rational and efficient development, exploration and develop ment is needed to guide the research area of Chang 6 reservoir water injection program and de velop countermeasures, and develop countermeasures through integrated geological research, i n order to achieve complete apricots River Oil Production Plant of resources to succeed, and Y ield.