【摘要】 针对Q区块侏罗系延安组构造岩性油气藏呈现的河道窄、各向异性强,单单靠井控难以刻画砂岩的展布特征和难以描述低幅度构造的勘探难题。利用三维地震具有良好的横向分辨率、连续性的优势,采用精细层位标定与速度分析、反射结构特征识别和反演等方法,完成了对构造、断裂、储层等成藏因素的精细预测,为井位部署提供有力的技术支撑。更多还原

【Abstract】 The Jurassic oil traps of the Yan′an Formation in the Block Q of the Erdos Basin is a structure and lithology controlled hydrocarbon reservoir.It is narrow in width and strong in anisotropy.Therefore,it is difficult to define the distribution pattern of the sand body and the low amplitude of structure only by the approach of drilling.In order to solve this problem,3Dseismic technique is used and this paper aims to illustrate the concrete steps of the 3Dseismic survey.With the advantages of high lateral resolution and the continuity of the 3Dseismic technique,a series measures,such as fine horizontal calibration,velocity analysis,reflection configuration recognition and inversion,are applied to the fine prediction of strata,fractures,and other reservoir forming factors.All these measures have provided strong technical support to the decision of well locations.更多还原