Sandbody's Growth And Oil Enrichment Properties Of Fuyu Reservoir In The Xin 76 Blocks Of Xingshugang Oilfield

In this paper,the comprehensive application of 3D seismic interpretation and prediction,well log interpretation,core data and the development of dynamic data analysis and other methods,the sand body's growth characteristics and oil enrichment properties fuyu reservoir in the X76 blocks of???oilfield to carry out the following research work.First of all,on the basis of accurate horizon calibration,the overall structure of X76 block is studied,and the fracture characteristics and trap characteristics of the research area are analyzed.Secondly analyse the depositional setting and sedimentary environment of the fuyu reservoir.Through the observation and description of coring wells,and a large number of drilling and testing wells profile,systematic analysis the lithofacies characteristics of the fuyu reservoir in the study area,analysis of fuyang reservoir facies,sub-facies,microfacies and the establishment of a logging-phase mode,and conduct research on flat sedimentary characteristics and distribution of micro-combined.Then,on the basis of sedimentary facies studies,through the Xin76 blocks sand fine dissection,we determined sand body development scale,development status of the plane,sand drilling conditions and the distribution of main sandbody.Based on the above,it analyzes the sand type and sand development scale of the research area.And combine sedimentary facies and well with seismic reservoir prediction research,describes the relationship between the microfacies distribution and sandbody development and the distribution of sand body crosswell.At last,based on the main factors of hydrocarbon accumulation and distribution of oil and water,determined the relationship between sandbody's growth characteristics and oil enrichment,and research conducted the regularity of oil enrichment.Through the above research,this paper figures out the X76 blocks of???oilfield is taking well X67-1 high westward inclined slope,the structural trend performance is southwest to northeast gradually lifted,horst graben phase distribution.The faults in the research area are developed,and the quantity and scale are small.The development of four types of traps,fault block,anticline,fault nose and anticline,fault blocks and brokeback type trap is the main,rarely developed anticline traps.And this paper also identify research area for the delta plain of northern source control,the main reservoir sands near the north and south to small-especially small river channel,river sand thickness smaller and relatively thick northern sand.The main types of reservoir sandbody are:distributary channel and distributary bay,the main effective reservoir for small distributary channel.Meanwhile,we determined that the oil and gas in the study area,mainly from Qijia-Gulong sag,faults on oil-gas accumulation act as the migration pathway,a good matching relationship betweenfaults and sand bodies is an important condition for reservoir forming area.