LDVR方法在塔里木盆地油气勘探中的应用探讨

Application of lateral differential velocity ratio method to Tarim basin hydrocarbon exploration

横向差异速度比值（LateralDifferentialVelocityRatio，简称LDVR）分析方法是一套用常规速度资料辅助进行；电气检测的方法。本方法基于差异层间速度分析（DIVA）方法和砂泥岩指数计算公式并作相应的改进。运用LDVR方法对塔里木盆地的HLHT（包括DHT油田）、TD、TZ、BC、YKL以及LN等地区6个区块的4个层系进行计算，初步取得了良好效果，特别是对LN以及BC的部分区块的钻前预测结果，均与实际钻井情况相符。

Lateral differential velocity ratio (LDVR ) method is an auxiliary hydrocarbonprediction method which uses ordinary seismic velocity. The method is based on dif-ferential interval velocity analysis and sand & shale content formulate,and it is bet-ter than the originals This method has been used to predict four forrnation series inHLHT(including DHT oil field), TD, TZ, BC, YKL,and LN areas in Tarim basin;and good effect has been obtained. Particularly, some pre-drilling predlction resultsin the parts of LN and BC areas coincide with the real drilling results.