The Study Of The Flow Unit Of Main Zone And Remaining Oil Of Fuyang Formation In Sheng 382 Well Of Yushulin Oilfield

Block Sheng 382 is a better developed part in north of Yushulin oil field,resulting of physical property of reservoir bed is relatively good,water content of production wells in injection well row rises rapidly,most of the wells premature water breakthrough or water out,the main reservoir water absorption is poor,there is a serious imbalance in injection and production,which affected the quality of total development.In order to develop the realization of geological reservoir,find out the effect factors and distribution laws of remaining oil,solve the problems existing in development,raise the production of oil field and improve the effects of development in oil field,the author takes Block Sheng 382 for the studies in current units and remaining oil of the main reservoir.Based on the generalization of predecessors'fruite and regional sedimental setting,the author takes full advangtage of drilling core data,the logging data of development wells and the dynamic data of development,comprehensively applies layer correlation and subdividing sedimentation unit in fluvio-delta sedimentary system of cyclic correlation,fractional control,different treatments to different sedimentary faces belt,and set up framework of layers in the research region;by means of analyzing aggregate thicknees of reservoir sand in every sedimental units,the author confirms the main reservoir in the research region;under facies-constrained conditions,studies micro-range structural forming of head and base of sand body of the main reservoir based on the fault data of seismic data detailed interpretation and wells correlation data description of technology,finds out the type and distribution of microtectonics in the main reservoir,confirms the relationship between microtectonics in research region and production in oil field;by means of analyzing the data from testing cored wells,confirms the classification scheme of current units of the main reservoir in research region,sums up features of every type of current units,learns distribution features of current units of the main reservoir,concludes the relationship between current units and development in oil field;utilizes software-Petrel to build triaxial,detailed geological model of the main reservoir,including models of structure,sedimentary facies and property;uses static and dynamic combining research method to take comprehensive research in the remaining oil in research region on both quality and quantity,and learn effect factors and distribution laws of remaining oil,predicts the figure of remaining oil with numerical simulation technique to show the exact direction for tapping the hidden remaining oil further in research region.