论文部分内容阅读
排替压力是评价盖层物性封闭能力的最重要参数.盖岩排替压力可以通过实验法和计算法两种方法获得.根据两种方法的运用条件,对其在盖层物性封闭能力评价中所起的作用进行了深入研究.提出直接驱替法获得的盖岩排替压力最能反映盖岩的实际物性封闭能力;利用声波时差计算盖岩排替压力较实测盖岩排替压力有更大的信息量,对于盖层物性封闭能力的剖面研究以及探井多且分布均匀区的盖层物性封闭能力的平面研究具有重要意义;利用地震层速度计算盖岩排替压力可获得较利用声波时差计算盖岩排替压力更多的信息,对于探井少且分布不均匀区的盖层物性封闭能力的平面研究具重要意义.
Lining pressure is the most important parameter to evaluate the sealing ability of caprock.Replacement pressure of cap rock can be obtained by both experimental and computational methods.According to the application conditions of the two methods, The author puts forward that the displacement pressure of cap rock obtained by the direct displacement method can most reflect the actual physical sealing ability of the cap rock and the displacement pressure of cap rock can be calculated by the acoustic time difference The large amount of information is of great significance for the study of the cross-section of the physical sealing ability of the cap rock and the plane captivity of the cap rock with a large number of wells and well-distributed zones. Using the velocity of the seismic bed to calculate the displacement pressure of the cap rock can obtain a more accurate comparison with the acoustic time- Calculating more information on bedrock displacement pressure is of great importance for the plane study of the physical property of caprock in areas with less well exploration and uneven distribution.