阜东斜坡齐古基准面旋回与储集层微观非均质性

doi:10.11885/j.issn.1674-5086.2018.11.28.03

西南石油大学学报(自然科学版) ›› 2020, Vol. 42 ›› Issue (2): 37-47.DOI: 10.11885/j.issn.1674-5086.2018.11.28.03

阜东斜坡齐古基准面旋回与储集层微观非均质性

于景维¹, 唐群英², 吴军³, 路子阳⁴, 文华国⁵

1. 中国石油大学(北京)克拉玛依校区, 新疆克拉玛依 834000;
2. 中国石油青海油田勘探开发研究院, 甘肃敦煌 736200;
3. 中国石油青海油田采油三厂, 甘肃敦煌 736200;
4. 中国石油新疆油田玛湖第二作业区百口泉采油厂, 新疆克拉玛依 834000;
5. 油气藏地质及开发工程国家重点实验室·成都理工大学, 四川成都 610059

收稿日期:2018-11-28 出版日期:2020-04-10 发布日期:2020-04-10
通讯作者: 于景维,E-mail:yyjjww-1985@163.com
作者简介:于景维,1985年生,男,汉族,河北石家庄人,副教授,博士,主要从事高分辨层序地层学与储层沉积学方面的教学与研究工作。E-mail:yyjjww-1985@163.com;唐群英,1984年生,女,汉族,四川资阳人,工程师,硕士,主要从事油田开发方面的研究工作。E-mail:tang-qyqh@petrochina.com.cn;吴军,1983年生,男,汉族,四川资阳人,工程师,主要从事油田开发方面的研究工作。E-mail:wujunqh@petrochina.com.cn;路子阳,1984年生,男,汉族,河南南阳人,工程师,主要从事油藏地质方面的研究工作。E-mail:bkqluzy@petrochina.com;文华国,1979年生,男,汉族,重庆万州人,教授,博士,主要从事沉积学的教学与研究工作。E-mail:47110060@qq.com
基金资助:
国家科技重大专项（2011ZX05001-005-01）；中国石油大学（北京）克拉玛依校区人才引进项目（RCYJ2016B-01-010）；新疆维吾尔自治区青年基金（XJEDU2016S109，2016D01B012）；克拉玛依市科技局项目（sk2016-42）

Cyclic Sequences and Microscopic Heterogeneity of Reservoirs in the Qigu Formation of the Fudong Slope Area

YU Jingwei¹, TANG Qunying², WU Jun³, LU Ziyang⁴, WEN Huaguo⁵

1. Karamay Campus, China University of Petroleum(Beijing), Karamay, Xinjiang 834000, China;
2. Research Institute of Experiment and Detection, Qinghai Oilfield, Dunhuang, Gansu 736200, China;
3. Third Oil Production Plant, Qinghai Oilfield, Dunhuang, Gansu 736200, China;
4. Baikouquan Oil Production Plant, Second Operation District of Mahu, Xinjiang Oilfield Company, CNPC, Karamay, Xinjiang 834000, China;
5. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China

Received:2018-11-28 Online:2020-04-10 Published:2020-04-10

摘要/Abstract

摘要： 为解决准噶尔盆地东部阜东斜坡区齐古组一段开发过程中由微观非均质性引起的油气采收率低下、剩余油难以开采等问题，探究不同级别基准面旋回内（水下）分流河道储集层微观非均质性的变化。运用基准面旋回沉积动力学的原理，在高分辨层序地层格架建立的基础上，主要应用区内钻井压汞数据对储集层颗粒、填隙物以及孔喉非均质性进行定量评价。研究认为，不同级别基准面旋回储集层微观非均质性表现具有差异性，短期基准面旋回中单一（水下）分流河道储集层微观非均质性表现为底强顶弱的特征，中期基准面旋回中叠置（水下）分流河道储集层微观非均质性表现为顶底强、中部弱的特征。基准面升降引起的可容纳空间与物源供给之间关系的改变是造成储集层微观非均质性差异的主要因素，原始颗粒非均质性决定储集层孔喉非均质性。

关键词: 基准面旋回, 微观非均质性, 分流河道, 齐古组, 阜东斜坡区

Abstract: During the exploitation of Member 1 of the Qigu Formation in the Fudong slope area in the eastern part of the Jungar Basin, microscopic heterogeneity results in low oil and gas recovery and difficulties obtaining the residual oil. To solve these problems, this study investigated variations in the microscopic heterogeneity of (underwater) diversion channel reservoirs within cyclic sequences of different classes. Based on the sedimentary dynamics of the cyclic sequences and a stratigraphic framework with high-resolution sequences, quantitative evaluation of the heterogeneity of grains, filling materials, and reservoir pore and throat sizes was carried out mostly using mercury intrusion data of wells in the region. It is believed that the microscopic heterogeneity of the reservoirs with cyclic sequences of different classes differ. For short-term cycles, the microscopic heterogeneity of single (underwater) diversion channel reservoirs is strong at the bottom but weak at the top. For medium-term cycles, the microscopic heterogeneity of superimposed (underwater) diversion channel reservoirs is strong at the top but weak in the middle. Uplift or subsidence of cyclic sequences leads to changes in the relationships between available spaces and sediment sources. These are the main factors resulting in the differences microscopic heterogeneity of the reservoirs. And the heterogeneity of the original grains determines the heterogeneity of the reservoir pore and throat sizes.

Key words: cyclic sequence, microscopic heterogeneity, diversion channel, Qigu Formation, Fudong slope area

中图分类号:

TE122

于景维, 唐群英, 吴军, 路子阳, 文华国. 阜东斜坡齐古基准面旋回与储集层微观非均质性[J]. 西南石油大学学报(自然科学版), 2020, 42(2): 37-47.

YU Jingwei, TANG Qunying, WU Jun, LU Ziyang, WEN Huaguo. Cyclic Sequences and Microscopic Heterogeneity of Reservoirs in the Qigu Formation of the Fudong Slope Area[J]. 西南石油大学学报(自然科学版), 2020, 42(2): 37-47.

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阜东斜坡齐古基准面旋回与储集层微观非均质性

Cyclic Sequences and Microscopic Heterogeneity of Reservoirs in the Qigu Formation of the Fudong Slope Area

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