砂砾岩储层分布非均质性和质量非均质性研究——以克拉玛依油田五2东区克上组为例

doi:10.12108/yxyqc.20180214

岩性油气藏 ›› 2018, Vol. 30 ›› Issue (2): 129–138.doi: 10.12108/yxyqc.20180214

砂砾岩储层分布非均质性和质量非均质性研究——以克拉玛依油田五2东区克上组为例

曹茜^1,2,3, 王志章⁴, 王野⁴, 张栋梁⁵, 公言杰³, 邹开真⁶, 樊太亮^1,2

1. 中国地质大学(北京)能源学院, 北京 100083;
2. 海相储层演化与油气富集机理教育部重点实验室, 北京 100083;
3. 中国石油勘探开发研究院, 北京 100083;
4. 中国石油大学(北京)地球科学学院, 北京 102249;
5. 中国石油长庆油田分公司第九采油厂, 银川 750006;
6. 中国石油青海油田分公司勘探开发研究院, 甘肃敦煌 736200

收稿日期:2017-09-06 修回日期:2017-11-09 出版日期:2018-03-21 发布日期:2018-03-21
第一作者:曹茜(1990-),女,中国地质大学(北京)在读博士研究生,研究方向为油气田开发地质。地址:(100083)北京市海淀区学院路29号中国地质大学(北京)。Email:cq_325@163.com。
基金资助:
国家油气重大专项“前陆冲断带及复杂构造区油气成藏、分布规律与有利区评价”（编号：2016ZX05003-002）和中国石油天然气股份有限公司科学研究与技术开发项目“前陆盆地源储配置与断-盖组合定量评价技术”（编号：2016B-0502）联合资助

Distribution and quality heterogeneity of conglomerate reservoir: a case from upper Karamay Formation in eastern block Wu 2, Karamay Oilfield

CAO Qian^1,2,3, WANG Zhizhang⁴, WANG Ye⁴, ZHANG Dongliang⁵, GONG Yanjie³, ZOU Kaizhen⁶, FAN Tailiang^1,2

1. School of Energy Resources, China University of Geosciences(Beijing), Beijing 100083, China;
2. Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Enrichment Mechanism, Ministry of Education, Beijing 100083, China;
3. PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China;
4. College of Geosciences, China University of Petroleum(Beijing), Beijing 102249, China;
5. No.9 Oil Production Plant, PetroChina Changqing Oilfield Company, Yinchuan 750006, China;
6. Research Institute of Exploration and Development, PetroChina Qinghai Oilfield Company, Dunhuang 736200, Gansu, China

Received:2017-09-06 Revised:2017-11-09 Online:2018-03-21 Published:2018-03-21

摘要/Abstract

摘要： 克拉玛依油田五2东区克上组为扇三角洲砂砾岩储层，砂体叠置关系复杂、储层非均质性严重，部分井组注水效果差。综合该区岩心、测井和实验室分析化验资料，对储层的分布和质量非均质性进行了定性分析和精细定量表征；并在相控约束下，利用熵权法计算综合非均质指数进行评价；最后将分析结果与实际生产数据相结合，总结出储层分布和质量非均质性对实际注采效果的影响。结果表明：各砂层组层间质量非均质性中等；层内渗透率以正韵律、复合正韵律和均质韵律为主，质量非均质性较强；平面上在相控约束下的同一砂体内部，储层质量非均质性表现为中等到强。垂向上S5和S1砂层组内部中厚层砂体组合分层多，其余各砂层组表现为孤立单砂体形式；平面上砂体的分布整体受沉积微相控制。储层分布非均质性是造成注采不见效的原因，储层质量非均质性则导致注采见效难，效果差，该结论对油藏下一步调整注采井网和注采措施具有重要意义。

关键词: 剩余油分布, 数值模拟, 夹层, 储层构型, 渤海海域

Abstract: The upper Karamay Formation in eastern block Wu 2, Karamay Oilfield, is sandy conglomerate reservoir of fan delta, which is characterized by complex sand body distribution, strong heterogeneity and poor effect of water injection and oil production. The data of core, laboratory analysis and well logging were used to study the heterogeneity of reservoir distribution and quality. The data of practical production and the results of qualitative analysis, fine quantitative characterization and synthesis evaluation obtained by entropy method, were adopted to analyze the effects of the distribution and quality heterogeneity on the performance of actual development measure. The result shows that the inter-layer heterogeneity is generally medium. The permeability of layer is dominated by positive rhythm, compound positive rhythm and homogeneous rhythm, and the reservoir quality heterogeneity is strong. In the same sand-body controlled by facies constraints, the reservoir quality heterogeneity is medium to strong. Vertically, the S5 and S1 sand layers are consist of medium-thick sand bodies and can be divided into many layers, with other layers showing isolated single sand body form. The sand body distribution on the plane is controlled by sedimentary microfacies. The heterogeneity of reservoir distribution leads to inefficiency of injection and production. The heterogeneity of reservoir quality leads to poor effect of injection production. This conclusion is of great significance for adjusting the injection production well pattern and measures.

Key words: remaining oil distribution, numerical simulation, interlayer, reservoir architecture, Bohai Sea

中图分类号:

TE122.2

曹茜, 王志章, 王野, 张栋梁, 公言杰, 邹开真, 樊太亮. 砂砾岩储层分布非均质性和质量非均质性研究——以克拉玛依油田五2东区克上组为例[J]. 岩性油气藏, 2018, 30(2): 129–138.

CAO Qian, WANG Zhizhang, WANG Ye, ZHANG Dongliang, GONG Yanjie, ZOU Kaizhen, FAN Tailiang. Distribution and quality heterogeneity of conglomerate reservoir: a case from upper Karamay Formation in eastern block Wu 2, Karamay Oilfield[J]. Lithologic Reservoirs, 2018, 30(2): 129–138.

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砂砾岩储层分布非均质性和质量非均质性研究——以克拉玛依油田五2东区克上组为例

Distribution and quality heterogeneity of conglomerate reservoir: a case from upper Karamay Formation in eastern block Wu 2, Karamay Oilfield

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