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在歧北斜坡沙一下白云岩油气藏勘探实践的基础上,提出了沙一下白云岩油气藏的勘探方法,即:沉积学理论基础,地球物理方法和技术,测井化验等技术手段和油气成藏机理研究。通过运用化验资料,综合测井资料、高分辨率三维地震资料对歧北斜坡的沉积背景展开研究,明确了白云岩储层发育区。根据钻井取心资料、FMI测井、成因分析和地震研究明确裂缝发育区。通过生油分析,明确了研究区白云岩油气成藏特点。通过综合研究指出了歧北斜坡有利勘探区带,进行了井位部署,同时开展老井评价,实现了对白云岩油藏的整体控制。
Based on the exploration of dolomite reservoirs in the northern slope of Qifbei, the exploration methods of dolomite reservoirs are proposed, which are the theoretical basis of sedimentology, geophysical methods and techniques, well logging and other technical means and oil and gas formation Research on Tibet Mechanism. Through the use of laboratory data, comprehensive logging data and high-resolution 3D seismic data, the paper studies the sedimentary background of the northern slope and identifies the dolomite reservoir development area. According to drilling coring data, FMI logging, genetic analysis and seismic studies clear crack development zone. Through the analysis of oil generation, the characteristics of dolostone hydrocarbon accumulation in the study area have been clarified. Through the comprehensive study, we pointed out the favorable exploration zone in the northern slope of Bijie, carried out the well site deployment, carried out the evaluation of the old wells and realized the overall control of the dolomite reservoir.