【摘要】 对于开发比较成熟的区块,利用多种已钻井的V SP速度,结合精细的速度处理结果,可以比较准确的预测速度,达到较小的预测误差;但是对于海上探井较少或是勘探新区而言,速度预测结果就存在较大的误差。这种误差的产生既有没有探井或是探井比较少的原因,也有速度预测过程中存在的认识误区及问题的原因。例如直接应用处理得到的成像速度进行时深转换和压力预测;建立速度体可以提高时深转换速度精度等。更多还原

【Abstract】 Blocks for the development of more mature,using a variety of drilling VSP has the velocity,combined with fine velocity processing results,you can more accurately forecast the velocity to achieve a smaller forecast error;but for exploration of offshore exploration wells,or fewer new area for exploration to go in terms of velocity prediction on the existence of large errors.Such errors arise because the existing exploration wells less,there is the velocity of the forecasting process there is the misunderstanding and the cause of the problem.For example,the direct application of imaging velocity to handle any time-depth conversion and pressure prediction;established body can improve the velocity of time-depth conversion rate of accuracy.更多还原