井震结合井旁构造随钻跟踪解释方法及其应

塔里木盆地库车山前高陡构造带的复杂性造成了地震成像的困难和解释的多解性，增大了勘探风险。在中途钻井过程中，首先利用井壁成像测井和地层倾角测井资料确定井点处构造特征，标定过井地震剖面，然后对井旁构造进行跟踪解释，确定钻井所在构造部位，判断地震构造解释真伪，分析测井井筒构造与地震构造解释产生矛盾的原因，及时对地震解释参数进行优化或为调整井位提供依据，从而最大程度地降低勘探风险。图6表1参8

Tracing interpretation and prediction for geological structures of the well location during drilling using logging and seismic data and its application

The extremely complicated geological conditions in the Kuqa foreland basin,Tarim have brought great difficulties in seismic prospecting and resulted in a high risk in oil and gas exploration.Aimed at the difficulties,a new method is put forward which include the following steps: determining geological structures based on the appropriate data-processing and geological interpretation of Dip Log and Borehole Imaging Log in the course of drilling,performing interpretation while drilling for the geological structures of the well location,predicting the well-reached local structural position by integrating logging and seismic data,analyzing the contradiction between logging well-bore and seismic structures,and timely optimizing the parameters for seismic data processing or adjusting the well position to reduce the exploration risk to the minimum level.