Forecast And Evaluation Of Reservoir In Jin1Area

Oil and gas exploration field of China is tending to change from looking forstructural entraps to seeking strata ones in recent years with the development of oiland gas exploration and exploitation.Reservoir prediction technology has beenturning into one of the most important and useful methods in oil and gas researchfield.Seismic data,for its successive character in landscape orientation,andwell-logging data,for its high-resolution power in vertical orientation, have beenteken into consideration as a whole to predict lithologic reservoirs, which is theleading way in this field at nowdays.This paper mainly applied the methods of logging, drilling, VSP(verticalseismic profile),seismic data,multipurpose utilizing geophysical prospecting andminegeology,through construction,sedimentation and reservoir analysis,whichcompleted the reservoir prediction and evaluation of Jin1well area. Making full useof zero partial and nonzero partial treatment results of the advantage of VSP method,and also calibrating seismic reflection horizons Xinglongtai reservoir and the oil floorof Yulou reservoir to making a time depth conversion model reliable, to explain theborehole-side structure meticulously, which improve the accuracy of3D seismicprecision description.In drilling material constraints, referencing production dynamicinformation to bring about fine structure interpreting, and more processing waveimpedance inversion, and the achievement of inversion have a good directive functionfor correlation of sand body and advantageous of reservoir prediction.This paper shows that Xinglongtai reservoir and Rehetai reservoir are cravenfaulted oilfields in Jin1well area,as faults are well developed.With the seismic anddrilling putting into practice,this area developed every size faults more than10totallyin Xinglongtai reservoir and Rehetai reservoir.Researching on distribution characterof sedimentary facies on main objective interval in Jin1well area through theanalysis of sedimentary facies, which finding Shaer section of XinglongtaioilⅠreservoir group, Shaer section of Xinglongtai oilⅡreservoir group and sectionof Rehetai oilⅡreservoir group all are fan-delta front intrafacied in shallow-half profundal zone. Finally using wave impedanceinversion technology to forecastsandbodies distribution, which provide reliable basis for evaluationoftrap and wellplacement.