随机反演在港西油田馆陶组辫状河储层预测中的应用  

Appling stochastic inversion technologies to predict braided river sedimentary reservoir in Gangxi oil field

作　　者：虞云岩[1] 卞从胜[2] 

机构地区：[1]中国地质大学 [2]中石油勘探开发研究院

出　　处：《内蒙古石油化工》2009年第4期81-87,共7页Inner Mongolia Petrochemical Industry

摘　　要：港西油田馆陶组地层为辫状河沉积地层,储层发育,泥质隔夹层在纵向及平面上分布不稳定,地震响应表现为波组连续,纵横向分辨率都较差,地质意义不明晰。应用常规波阻抗反演方法,由于受地震频带限制,储层预测精度低。采用以地质统计学信息为指导的随机反演不仅提高了纵向分辨率,而且储层横向展布由于受地质统计学规律约束,也相对较为可靠。通过在本区随机反演的应用,取得了一定的效果。Guantao fm in Gangxi oil field is braided river sedimentary formation with sound reservoir. since shale Interbed distribution is unsteadiness, seismic response is continue wave with low resolution and not clearly geological means. Traditional P--impedance inversion has a limitation of resolution and can＇t characterize reservoir sandstone in detail. Full of Geological meaning and high vertical resolution are two typical points of stochastic inversion ＆stochastic simulation methods. They are powerful tools for resolving prediction in braided river sedimentary reservoir. With application of stochastic inversion technique in gangxi oilfied ,Desired result have achieved.

关 键 词：港西油田 辫状河 地质统计学 随机反演 

分 类 号：P618.13[天文地球—矿床学] TU37[天文地球—地质学]