摘要
本文引入可信度这一基本概念及其有关知识。对用于含油气层厚度定量解释的地震层速度资料的可信度进行了分析研究,对汤原凹陷地震层速度资料用于解释1000米埋深下100米厚的地震层内25米厚的欠压实泥岩层、正常压实的泥岩层、含气砂层和含油砂层的最大可信度。分别为76.1、61.0、43.4和25.4;解释500米埋深下对应厚度的上述各地层的可信度分别为75.4、67.9、56.8和29.3。
This paper introduced the basic concept of reliability and the related knowledge to study the reliability of seismic interval velocity data used to interpret pay zone thickness. Application results of seismic interval velocity data in the Tangyuan depression indicate that the reliability of an interpretation of 25m uncompacted shale, compacted shale, gas- bearing layer and oil-bearing layer are respectively 76. 1, 61. 0, 43. 4 and 25. 5 when the seis- mic interval thickness is 100m and its depth of burial is 1, 000m, and their reliability change to 75. 4, 67. 9, 56. 8 and 29. 3 when their depth of burial is 500m.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1993年第3期45-52,共8页
Acta Petrolei Sinica
