油藏描述技术在克拉玛依油田的应用
|
摘要
以准噶尔盆地西北缘五区南油藏上二叠统乌尔禾组为实例，用二维地震资料进行油藏描述。以油藏框架描述为基础，从工区中选出２６条过井多、质量高的二维地震剖面，在斯伦贝谢公司的ＣＨＡＲＩＳＭＡ和ＣＧＧ公司的ＩＮＴＥＧＲＡＬ勘探工作站上进行了精细的解释，并综合应用地震、测井、钻试和分析化验等资料描述构造、地层沉积、横向追踪抽气层、反演绝对波阻抗剖面和孔隙度剖面，研究孔隙度平面变化，利用地震多种信息和绝对波阻抗剖面确定气油界面和油水界面。研究所得出的结论与钻探结果是符合的，说明在准噶尔盆地西北缘用二维地震资料进行精细油藏描述是可行的。
With respect to Wuerhe formation reservoir (Upper Permian) , south Dis-trict No. 5 in northwest margin of Junggar basin, the reservoir description has been madewith 2-D seismic data. Based on the reservoir framework description . 26 high-quality 2-D seismic profiles which travel through more holes have been selected in work area, thefine interpretation has been made on CHARISMA (Schlumberger Co. ) and INTEGRAL(CGG Co. ) exploration workstations. The data of seismic, logging, drill stem testing,and lab analysis were wholly used to undergo the structure and sedimentology description,lateral tracing of oil and gas bed, backward modelling of absolute wave impedance andporosity profiles, and studies in change of porosity in plane. Gas/oil contact and oil/watercontact were determined by using varied information of seismic event and absolute waveimpedance profile. The agreement between the above results and drilling results suggestthat the fine reservoir description with 2-D seismic data in northwest margin of Junggarbasin is feasible.
With respect to Wuerhe formation reservoir (Upper Permian) , south Dis-trict No. 5 in northwest margin of Junggar basin, the reservoir description has been madewith 2-D seismic data. Based on the reservoir framework description . 26 high-quality 2-D seismic profiles which travel through more holes have been selected in work area, thefine interpretation has been made on CHARISMA (Schlumberger Co. ) and INTEGRAL(CGG Co. ) exploration workstations. The data of seismic, logging, drill stem testing,and lab analysis were wholly used to undergo the structure and sedimentology description,lateral tracing of oil and gas bed, backward modelling of absolute wave impedance andporosity profiles, and studies in change of porosity in plane. Gas/oil contact and oil/watercontact were determined by using varied information of seismic event and absolute waveimpedance profile. The agreement between the above results and drilling results suggestthat the fine reservoir description with 2-D seismic data in northwest margin of Junggarbasin is feasible.
引文
1关维东，对洪积扇储集体的几点新认识。新疆石油地质，1992；13（1）：49－55
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心