Identification of deep lithologic traps in Middle Junggar Basin

Deep lithologic traps in Jurassic of Middle Junggar Basin in SINOPEC Shengli exploration area have been identified,described and evaluated by comprehensive interpretation of mud logging,well logging composite traces calibration, and special processing and interpretation of seismic data.Sedimentary facies are divided according to seismic attributes,seismic wave impedance inversion and reservoir analysis.The relationship between sedimentary faices and oil reservoir distribution is demonstrated to show hydrocarbon accumulation pattern.The prediction has accorded with exploration drilling result,and SINOPEC has made important exploration breakthrough in its new Junggar exploration area in west China.