地质统计学反演在三角洲河道砂岩储层刻画中的应用

Application of Geostatistics Inversion in the Sandstone Reservoir Characterization of Delta Riverway

随着勘探开发程度的不断深入,储层反演在油气田储层刻画方面的作用越来越重要。研究区埕北低断阶目前正处于整体评价与整体开发上产阶段,需要建立一套适合本区储层刻画的方法,然而研究区主要发育辫状河三角洲沉积体系,纵向以及横向砂体分布极不均匀,准确刻画河道砂岩储层的变化难度极大。本文在进行储层预测的过程中,选择地质统计学方法来刻画储层的变化,预测结果与地质认识基本吻合,在实际应用过程中也取得了较好的效果。

With the continuous deepening of exploration and development,the function of reservoir inversion in the reservoir characterization of oil and gas field becomes more and more important.Low Cheng north fault terrace study is in the overall evaluation and overall development stage and it needs to set up a set of methods fitting the reservoir characterization in this area,however,the study area mainly develops braided river deltasedimentary system and the longitudinal and transverse sand body have a extremely uneven distribution,besides,accurately describe the change ofchannel sandstone reservoir is extremely hard.In the process of reservoir prediction,this paper chooses the geostatistics method to describe the change of reservoir and the prediction result is in accordance with the geological understanding basically,besides,in the process of practical application,a good effect is achieved.