中国石油勘探 ›› 2018, Vol. 23 ›› Issue (1): 81-90.DOI: 10.3969/j.issn.1672-7703.2018.01.009

• 石油地质 • 上一篇    下一篇

准噶尔盆地白家海凸起下侏罗统三工河组沉积演化及油气勘探意义

靳军1, 付欢1, 于景维2, 祁利祺2, 尚玲1, 文华国3, 徐文礼3   

  1. 1 中国石油新疆油田公司实验检测研究院;
    2 中国石油大学(北京)克拉玛依校区;
    3 成都理工大学
  • 收稿日期:2016-11-29 修回日期:2017-09-11 出版日期:2018-01-15 发布日期:2018-01-04
  • 通讯作者: 于景维(1985-),男,河北石家庄人,博士,2015年毕业于成都理工大学,讲师,现主要从事石油地质综合研究及油气勘探方面的教学及科研工作。地址:新疆克拉玛依市安定路355号,邮政编码:834000。E-mail:yyjjww-1985@163.com
  • 基金资助:
    国家科技重大专项“大型油气田及煤层气开发”(2011ZX05001-005-01);新疆维吾尔自治区青年基金“准东阜东斜坡区齐古组储层非均质性精细研究”(2016D01B012)。

Sedimentary evolution of the Lower Jurassic Sangonghe Formation in Baijiahai uplift, Junggar Basin and its significance in oil and gas exploration

Jin Jun1, Fu Huan1, Yu Jingwei2, Qi Liqi2, Shang Ling1, Wen Huaguo3, Xu Wenli3   

  1. 1 Experimental Testing Institute of PetroChina XinJiang Oilfield Company;
    2 Karamay Campus of China University of Petroleum(Beijing);
    3 Chendu University of Technology
  • Received:2016-11-29 Revised:2017-09-11 Online:2018-01-15 Published:2018-01-04
  • Supported by:
     

摘要: 准噶尔盆地白家海凸起西南部地区三工河组沉积相展布及其演化规律缺少系统的研究。为了指导该区油气勘探开发,揭示其沉积演化规律,在区域沉积背景分析基础上,结合高分辨层序地层所划分的3个中期基准面旋回,利用野外露头、岩心、测井及地震资料,重点对三工河组沉积演化规律进行研究,认为三江河组主要发育辫状河三角洲和湖泊两种沉积相类型,MSC1、MSC2以辫状河三角洲前缘亚相为主,MSC3主要发育滨浅湖沉积,且受湖平面的变化影响,储集砂体厚度及分布存在差异。研究结果表明:Ⅰ类储层有利区、Ⅱ类储层有利区分布于MSC1和MSC2辫状河三角洲前缘;MSC3浅湖沙坝为Ⅲ类储层有利区。三工河组沉积演化规律的研究不仅丰富了白家海凸起侏罗系勘探开发成果,同时基于有利区的划分,指明了下步油气勘探的主要方向,拓展了找油新领域。

 

关键词: 准噶尔盆地, 白家海凸起, 下侏罗统, 三工河组, 沉积演化

Abstract: Less systematic studies have been focused on the evolution and distribution of the sedimentary facies in the Sangonghe Formation in the southwest Baijiahai Uplift, the Junggar Basin. To support the oil and gas exploration and development, and understand the evolution of the sedimentary environment, the evolution rule in the Sangonghe Formation was investigated using outcrops, cores, logging and seismic data and based on the analysis of regional sedimentary background and the 3 mid-term datum cycles divided by high resolution sequence stratigraphy. The study suggests two sedimentary facies in the Sangonghe Formation--braided river delta and lacustrine facies; braid-river delta front subfacies are developed in MSC1-MSC2, and shore-shallow lacustrine sediments are mainly in MSC3; and influenced by the fluctuation of the lake level, there are differences in the thickness and distribution of the sandstone reservoirs. The study states that favorable reservoirs of class I and class Ⅱ are distributed in the braided river delta front in MSC1 and MSC2, and favorable reservoirs of class Ⅲ are in the shallow lake sandbar in MSC3.The study on the evolution of the sedimentary environment of the Sangonghe Formation not only enriches the exploration and development achievements of the Jurassic Baijiahai uplift, but also determinesand expands future field of oil and gas explorationin the Junggar Basin.

Key words: Junggar Basin, Baijiahai uplift, Lower Jurassic, Sangonghe Formation, evolution of sedimentary environment

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