春光区块沙湾组沉积相类型及岩性圈闭发育模式

doi:10.3969/j.issn.1672-7703.2017.02.007

中国石油勘探 ›› 2017, Vol. 22 ›› Issue (2): 58-66.DOI: 10.3969/j.issn.1672-7703.2017.02.007

春光区块沙湾组沉积相类型及岩性圈闭发育模式

赵爱文^1,2, 王振奇², 叶春³, 陈轩², 宋俊杰⁴, 王琳霖², 李伟强²

1. 无锡工艺职业技术学院机电工程系;
2. 长江大学地球科学学院;
3. 中国石油新疆油田公司勘探开发研究院地球物理研究所;
4. 中国石化河南油田分公司工程咨询有限公司

收稿日期:2015-10-29 修回日期:2017-01-15 出版日期:2017-03-10 发布日期:2017-03-10
作者简介:赵爱文(1991-),女,江苏淮安人,硕士,2016 年毕业于长江大学,现从事学生管理工作。地址:江苏省无锡市宜兴市荆邑南路 99 号,邮政编码:225800。E-mail:18062796417@163.com
基金资助:
国家科技重大专项“西非重点区深水碎屑岩高精度层序地层研究与储层精细评价”（2011ZX05030-003-001）；国家自然科学基金青年科学基金项目“黄骅坳陷孔南地区枣 Ⅲ 界面的构造属性及其地质意义”（41402111）。

Types of sedimentary facies and development patterns of lithologic traps in Shawan Formation, Chunguang block

Zhao Aiwen^1,2, Wang Zhenqi², Ye Chun³, Chen Xuan², Song Junjie⁴, Wang Linlin², Li Weiqiang²

1. Mechanical Engineering Department, Wuxi Institute of Arts & Technology;
2. College of Geosciences, Yangtze University;
3. Division of Geophysics Research, Exploration and Development Research Institute, PetroChina Xinjiang Oilfeld Company;
4. Sinopec Henan Oilfeld Engineering Consulting Company Limited

Received:2015-10-29 Revised:2017-01-15 Online:2017-03-10 Published:2017-03-10
Contact: 10.3969/j.issn.1672-7703.2017.02.007

摘要/Abstract

摘要： 春光区块主力生油层沙湾组的沉积相类型一直备受关注，很多学者也都做过详细的研究与探讨，但成果与认识存在较大分歧。在野外剖面、钻井岩心观察描述的基础上，结合岩石颜色、沉积构造等相标志，认为春光区块沙湾组为辫状河三角洲-湖泊沉积体系；根据已钻井测井曲线的形态特征、地震属性值特征进行沉积微相分析，识别并划分出了辫状河河道、辫状河三角洲前缘水下分流河道沉积微相。统计分析沙湾组主要出油点岩性圈闭发育特征，发现辫状河三角洲前缘水下分流河道砂体是主要的油气储集体，发育辫状河三角洲前缘水下分流河道砂体储集-侧向相变封堵沉积模式。在此模式指导下，对研究区进行有利勘探目标优选，认为沙湾组S2砂组在研究区中西部发育的辫状河三角洲前缘水下分流河道沉积为下一步油气勘探的I类目标相带。

关键词: 水下分流河道, 辫状河三角洲, 岩性油气藏, 沙湾组, 春光区块, 准噶尔盆地

Abstract: Many scholars have made detailed studies and discussions on the types of sedimentary facies in the Shawan Formation, the major oil-generating formation in the Chunguang block, but their achievements and recognitions are inconsistent. On the basis of outcrop section and drilling core observation, together with the rock color, sedimentary structure and other facies markers, it is derived that the Shawan Formation is of the braided river delta-lake sedimentary system. According to shapes of wireline logging curves and seismic attribute analysis, the sedimentary microfacies are identifed as braided channel, and underwater distributary channel at the braided river delta front. Statistical analysis on the features of lithologic traps at the oil-producing point indicate that the underwater distributary channel sands at the braided river delta front serve as the major reservoir, and the depositional pattern is summarized as the underwater distributary channel sands at the braided river delta front as reservoir with lateral phase-transition seal. According to this pattern, the prospective targets are selected within the study area, and the underwater distributary channel sands at the braided river delta front in S2 sand group of Shawan Formation within the study area is considered as Type I target zone for the following exploration.

Key words: lithologic reservoir, Shawan Formation, Chunguang block, Junggar Basin, underwater distributary channel, braided river delta

中图分类号:

TE112.2

赵爱文, 王振奇, 叶春, 陈轩, 宋俊杰, 王琳霖, 李伟强. 春光区块沙湾组沉积相类型及岩性圈闭发育模式[J]. 中国石油勘探, 2017, 22(2): 58-66.

Zhao Aiwen, Wang Zhenqi, Ye Chun, Chen Xuan, Song Junjie, Wang Linlin, Li Weiqiang. Types of sedimentary facies and development patterns of lithologic traps in Shawan Formation, Chunguang block[J]. China Petroleum Exploration, 2017, 22(2): 58-66.

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春光区块沙湾组沉积相类型及岩性圈闭发育模式

Types of sedimentary facies and development patterns of lithologic traps in Shawan Formation, Chunguang block

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