西南石油大学学报(自然科学版) ›› 2023, Vol. 45 ›› Issue (3): 49-60.DOI: 10.11885/j.issn.1674-5086.2021.04.20.01

• 地质勘探 • 上一篇    下一篇

准西车排子凸起下石炭统地层划分及潜力分析

卞保力1, 胡修权2,3, 王学勇1, 刘海磊1, 程锦翔4   

  1. 1. 中国石油新疆油田分公司勘探开发研究院, 新疆 克拉玛依 834000;
    2. 成都理工大学能源学院, 四川 成都 610059;
    3. 油气藏地质及开发工程全国重点实验室·成都理工大学, 四川 成都 610059;
    4. 中国地质调查局成都地质调查中心, 四川 成都 610081
  • 收稿日期:2021-04-20 出版日期:2023-06-10 发布日期:2023-07-07
  • 通讯作者: 胡修权,E-mail:huxiuquan15@cdut.edu.cn
  • 作者简介:卞保力,1983年生,男,汉族,山东临沂人,工程师,硕士,主要从事石油与天然气地质方面的研究工作。E-mail:bbaoli@petrochina.com.cn;
    胡修权,1985年生,男,四川南充人,副教授,博士,主要从事构造地质、地震地层及储层预测方面的研究工作。E-mail:huxiuquan15@cdut.edu.cn;
    王学勇,1990年生,男,汉族,河南兰考人,工程师,主要从事油气勘探方面的研究工作。E-mail:sxytwxy1@petrochina.com.cn;
    刘海磊,1986年生,男,汉族,山东临朐人,工程师,硕士,主要从事油气地质勘探方面的研究工作。E-mail:lhlei66@petrochina.com.cn;
    程锦翔,1977年生,男,汉族,山西浑源人,高级工程师,硕士,主要从事地层沉积学、页岩气地质等方面的研究工作。E-mail:cjinxiang@mail.cgs.gov.cn
  • 基金资助:
    国家自然科学基金面上项目(42172175);广西重点研发项目(桂科 AB23026062);中国石油科学研究与技术开发项目(2022DJ0507)

Stratigraphic Division and Exploration Potential Analysis of Lower Carboniferous in Chepaizi Uplift, Northwestern Junggar Basin

BIAN Baoli1, HU Xiuquan2,3, WANG Xueyong1, LIU Hailei1, CHENG Jinxiang4   

  1. 1. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China;
    2. College of Energy Resources, Chengdu University of Technology, Chengdu, Sichuan 610059, China;
    3. National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China;
    4. Chengdu Center, China Geological Survey, Chengdu, Sichuan 610081, China
  • Received:2021-04-20 Online:2023-06-10 Published:2023-07-07

摘要: 利用野外露头、地震及最新钻测井资料,对车排子凸起下石炭统地层进行细分,并开展勘探潜力分析。研究结果表明,车排子凸起下石炭统地层三分特征明显,自下而上依次发育太勒古拉组火山岩、包古图组火山岩与沉积岩互层及希贝库拉斯组沉积岩,3套地层在岩性特征、测井响应及地震反射等方面存在明显差异。平面上,太勒古拉组全区分布,南北向凹隆相间,包古图组和希贝库拉斯组呈南北向展布,向东向西削蚀尖灭。总体上,火山岩储层总体优于砂砾岩储层,火山角砾岩物性好于安山岩。太勒古拉组爆发相和中基性溢流相是储层发育的优势岩相,尤其东南部爆发相发育区,位于中等磁力异常范围,分布广,勘探潜力大。

关键词: 车排子凸起, 下石炭统, 地层划分, 火山岩相, 勘探潜力

Abstract: This study uses field outcrops, earthquakes, and the latest drilling and logging data to subdivide the Lower Carboniferous strata in the Chepaizi Uplift, and to conduct exploration potential analysis. Our research indicates that the lower Carboniferous strata in the Chepaizi Uplift have obvious three-division characteristics. From bottom to top, there are volcanic rocks of the Tailegula Formation, interbedded volcanic rocks and sedimentary rocks of the Baogutu Formation, sedimentary rocks of the Xibekulas Formation, and three sets of strata in the rock. There are obvious differences in characteristics, logging response, and seismic reflection. In horizontal direction, the Tailgula Formation is distributed throughout the region, with north-south concave and uplifts alternating. The Baogutu Formation and the Xibekulas Formation spread out in a north-south direction, eroding and pinching east to west. In general, volcanic reservoirs are better than sand-conglomerate reservoirs, and volcanic breccias have better physical properties than andesite. The explosive facies and intermediate-basic overflow facies of the Tailegula Formation are the dominant lithofacies for reservoir development, especially the explosive facies development area in the southeast, which is located in the range of medium magnetic anomalies with wide distribution and great exploration potential.

Key words: Chepaizi Uplift, Lower Carboniferous, stratigraphic division, volcanic facies, exploration potential

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