摘要: |
以羊三木油田羊三断块馆二上段为例,提出了辫状河砂体储层构型的研究方法,即基于辫状河露头及现代沉 积原形模型,应用动、静态资料在井间识别单个心滩坝砂体,进行井间构型预测,建立构型三维展布模型。研究结果 表明,辫状河心滩坝厚砂层内部存在次级界面,与界面伴生的夹层在心滩坝中心分布不稳定,剩余油往往富集于砂 体顶部,而夹层在心滩坝两翼较为稳定,致使剩余油富集于被夹层分隔的某些相对均质段。 |
关键词: 储层构型 辫状河 心滩坝 剩余油 羊三木油田 |
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基金项目:国家科技重大专项课题(2008ZX05014) |
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Architecture analysis of braided river reservoir |
LIU Yu-ming1,HOU Jia-gen1,WANG Lian-min2,XUE Jian-jun2,LIU Xian-he2,FU Xiao-liang2
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(1.School of Resource and Information Technology in China University of Petroleum, Beijing 102249 f China;2. 6th Oil Production Plant of Dagang Oilfield Branch Comapany, PetroChina, Tianjin 300280, China)
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Abstract: |
Taking the upper Ng2 formation of Y3 block in YSM Oilfield as a case, the architecture analysis method of braided river reservoir was proposed. Based on the former results about outcrop and modem deposition study,using dynamic and static data, the singe mid-channel bar was identified and anatomized. The 3D architecture model was built. The results show that the interlayer in the think sandbody of braided river reservoir, which was associated with the bounding surface, was always unstable in the center part of the mid-channel bar, where the remaining oil was always on the top. The inlerlayer was relatively stable in the lateral part of the mid-channel bar , where the remaining oil was accumulated in the relatively homogeneous segments separated by the interlayer. |
Key words: reservoir architecture braided river mid-channel bar remaining oil YSM Oilfield |