岩性油气藏 ›› 2020, Vol. 32 ›› Issue (4): 143–154.doi: 10.12108/yxyqc.20200415

• 油气田开发 • 上一篇    下一篇

饶阳凹陷大王庄地区沙一上亚段河口坝结构对油藏开发的影响

吕文睿1,2, 张峰3, 纪友亮1,2, 周勇1,2, 罗妮娜1,2, 张艺楼1,2, 梁星如4, 程煜宗5   

  1. 1. 中国石油大学(北京)地球科学学院 北京, 102249;
    2. 中国石油大学(北京)油气资源与探测国家重点实验室, 北京 102249;
    3. 中国石油华北油田分公司 开发部, 河北 任丘 062552;
    4. 中国石油华北油田分公司勘探开发研究院, 河北 任丘 062552;
    5. 中国石油华北油田分公司 第三采油厂, 河北 河间 062450
  • 收稿日期:2019-07-10 修回日期:2019-08-05 出版日期:2020-08-01 发布日期:2020-06-16
  • 通讯作者: 纪友亮(1962-),男,博士,教授,博士生导师,主要从事沉积学等方面的教学和科研工作。Email:jiyouliang@cup.edu.com。 E-mail:jiyouliang@cup.edu.com
  • 作者简介:吕文睿(1995-),女,中国石油大学(北京)在读硕士研究生,研究方向为沉积学、储层地质学和层序地层学。地址:(102249)北京市昌平区府学路18号。Email:972482643@qq.com
  • 基金资助:
    国家自然科学基金项目“高频湖平面变化背景下复合三角洲砂体的结构及分布模式”（编号：41672098）、中国石油天然气股份有限公司重大科技专项“富油气区带整体再评价关键技术研究与应用”（编号：2017E-1504）联合资助

Influence of estuary bar structure on reservoir exploitation of upper Sha-1 submember in Dawangzhuang area,Raoyang Sag

LYU Wenrui1,2, ZHANG Feng3, JI Youliang1,2, ZHOU Yong1,2, LUO Nina1,2, ZHANG Yilou1,2, LIANG Xingru4, CHENG Yuzong5   

  1. 1. College of Geoscience, China University of Petroleum(Beijing), Beijing 102249, China;
    2. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum(Beijing), Beijing 102249, China;
    3. Department of Development, PetroChina Huabei Oilfield Company, Renqiu 062552, Hebei, China;
    4. Research Institute of Exploration and Development, PetroChina Huabei Oilfield Company, Renqiu 062552, Hebei, China;
    5. No.3 Oil Production Plant, PetroChina Huabei Oilfield Company, Hejian 062450, Heibei, China
  • Received:2019-07-10 Revised:2019-08-05 Online:2020-08-01 Published:2020-06-16

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摘要： 饶阳凹陷大王庄地区沙一上亚段Ⅲ，Ⅳ油组发育水下分流河道与河口坝砂体，其内部结构影响着油藏的开发，但该区河口坝内部结构和隔夹层的分布情况缺乏系统的研究。利用岩心资料、测井数据、生产数据等多种资料，在识别和分析沉积微相的基础上，对河口坝、泥质隔夹层的结构特征及油藏特征进行解剖，明确了河口坝的内部结构对油藏开发的影响，建立了油藏模式。结果表明：大王庄地区沙一上亚段Ⅲ，Ⅳ油组发育三角洲前缘亚相，包括水下分流河道、河口坝和水下分流间湾3种微相。不同期河口坝之间和同一期河口坝内部发育泥质隔夹层。在顺物源方向上，河口坝呈S型叠置前积；在垂直物源方向上，多期河口坝纵向上叠置堆积；河口坝间发育泥质隔层，单个河口坝内部发育泥质夹层。研究区一共发育3种类型的油藏：断层控制油藏、岩性控制油藏、断层-岩性复合油藏。不同期次河口坝间的泥质隔层作为油气的隔挡，是造成油水界面不统一的原因，而河口坝内部的夹层厚度较薄，规模小，不影响连通性。

关键词: 河口坝, 泥质隔夹层, 内部结构, 油藏开发, 沙一上亚段, 饶阳凹陷

Abstract: Underwater distributary channels and estuary bar sandbodies were developed in the third and fourth oil members of the upper Sha 1 member(Es1)in Dawangzhuang area of Raoyang Sag,and their internal structure influences the development of reservoirs. However, there is a lack of systematic research on the internal structure of estuary bar and the distribution of interbeds in this area. Based on the identification and analysis of sedimentary microfacies,the structural characteristics and reservoir characteristics of estuary bars and muddy interbeds were dissected by using core data,logging and production data. The influence of the internal structure of estuary bars on reservoir development was clarified and the reservoir model was established. The results show that in the third and fourth oil groups of upper Es1 in Dawangzhuang area,delta front subfacies was developed,including three microfacies:underwater distributary channel,estuary bar and underwater distributary bay. Muddy interbeds were developed between and within estuary bars. Along the source direction,estuary bar was S-shaped superimposed pre-accumulation,while in the vertical source direction,the multi-stage estuary bar was stacked vertically. The muddy barriers were developed between the estuary bars,and muddy interbeds were developed within the single estuary bar. There are three types of reservoirs developed in the study area:fault-controlled reservoir, lithology-controlled reservoir and fault-lithology composite reservoir. The muddy barriers between estuary bars in different stages are the reason for the inconsistency of oil-water interface, while the muddy interbeds within estuary bars are thin and the scale is small, which does not affect the connectivity.

Key words: estuary bar, muddy interbed, internal structure, reservoir exploitation, upper Es1, Raoyang Sag

中图分类号: 

  • TE122.2
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