摘要
裂缝性油气藏在全球的勘探开发中占有重要的地位,由于裂缝的成因复杂,类型多样,地震多解性强,随着油田的勘探开发越来越深入,常规的裂缝预测技术往往无法满足精细化开发的要求。面向YK油田的裂缝性油气藏,在传统叠后属性的基础上,发展了两种面向裂缝精细预测的深化技术:从常规的曲率体发展到带有倾角、方位角增强的多尺度曲率优选体;从三维方差蚂蚁体发展到基于曲率计算的多方位高精度融合蚂蚁体。将新发展的叠后数据体与井中的裂缝密度曲线以及产能PI对比分析,吻合率高达85%,油田的历史高产井与新建产的高产井均证明了裂缝预测新技术的有效性。
Fractured oil and gas reservoirs are essential in global exploration and development.Due to the complex origin of fractures,various types,and seismic solid multi-resolution,with the deepening of oilfield exploration and development,conventional fracture prediction techniques often cannot meet the requirements of refined development.Requirements.Aiming at fractured oil and gas reservoirs in the YK field,two deepening techniques oriented to fracture refined prediction are developed based on traditional post-stack attributes:from conventional curvature body to multi-scale curvature preferred body with dip and azimuth enhancement,from 3D variance ant body to multi-directional high-precision fusion and body based on curvature calculation.The newly developed post-stack data volume is compared with the well's fracture density curve and productivity PI,and the coincidence rate is as high as 85%.The historical high-yield wells in the oilfield and the newly-produced high-yield wells both prove the effectiveness of the fracture prediction technology.
作者
梁志强
李弘
丁圣
LIANG Zhiqiang;LI Hong;DING Sheng(Sinopec Geophysical Research Institute,Nanjing 210014,China)
出处
《物探化探计算技术》
CAS
2023年第3期299-306,共8页
Computing Techniques For Geophysical and Geochemical Exploration
基金
国家自然科学基金项目(U19B6003)。
关键词
裂缝预测
多尺度曲率
高精度蚂蚁
应用研究
fracture prediction
multi-scale curvature
high-precision ant
applied research
