西南石油大学学报(自然科学版) ›› 2025, Vol. 47 ›› Issue (2): 70-83.DOI: 10.11885/j.issn.1674-5086.2022.11.30.02

• 地质勘探 • 上一篇    下一篇

沙帐断褶带巴山组火山岩储层特征及影响因素

帕哈丁·麦麦提依力1, 韦波2, 李鑫1, 田继军1, 张紫昭1   

  1. 1. 新疆大学地质与矿业工程学院, 新疆 乌鲁木齐 830047;
    2. 新疆维吾尔自治区煤田地质局一五六煤田地质勘探队, 新疆 乌鲁木齐 830009
  • 收稿日期:2022-11-30 发布日期:2025-05-15
  • 通讯作者: 帕哈丁·麦麦提依力,E-mail:1545231226@qq.com
  • 作者简介:帕哈丁·麦麦提依力,1996年生,男,维吾尔族,新疆克拉玛依人,硕士,主要从事油气藏勘探方面的研究工作。E-mail:1545231226@qq.com
    韦波,1969年生,男,汉族,新疆乌鲁木齐人,教授级高级工程师,博士,主要从事含煤盆地勘探方面的研究工作。E-mail:weibo156@163.com
    李鑫,1990年生,男,汉族,新疆乌鲁木齐人,副教授,博士,主要从事油气勘探及煤层勘探方面的研究工作。E-mail:lixinwaxj@xju.edu.cn
    田继军,1978年生,男,汉族,新疆乌鲁木齐人,教授,博士,主要从事非常规油气勘探及煤层勘探方面的研究工作。E-mail:tianjijun@xju.edu.cn
    张紫昭,1981年生,男,汉族,新疆乌鲁木齐人,教授,博士,主要从事地质灾害与地质环境方面的研究工作。E-mail:253569481@qq.com
  • 基金资助:
    国家自然科学基金(U1903303);国家重大科技专项(2016ZX05002-002)

Volcanic Reservoir Characteristics and Influencing Factors of Carboniferous Bashan Formation in Shazhang Fault-fold Belt, Eastern Junggar Basin

MAIMAITIYILI Pahading1, WEI Bo2, LI Xin1, TIAN Jijun1, ZHANG Zizhao1   

  1. 1. School of Geology and Mining Engineering, Xinjiang University, Urumqi, Xinjiang 830047, China;
    2. No. 156 Coalfield Geological Exploration Team, Coalfield Geology Bureau of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang 830009, China
  • Received:2022-11-30 Published:2025-05-15

摘要: 准东地区沙帐断褶带石炭系巴山组火山岩层普遍发育,邻区五彩湾凹陷石炭系火山岩气田的勘探和开发投入表明研究区石炭系火山岩亦有成储成藏的潜力。为对该区火山岩油气勘探提供支撑,利用钻井、岩芯、镜下薄片、成像测井及物性分析资料等成果,综合研究沙帐断褶带石炭系巴山组火山储层特征及其发育影响因素。研究表明:1) 巴山组火山岩储层岩性以火山熔岩、熔结火山角砾岩、火山碎屑岩、火山-沉积岩及次火山岩为主;发育爆发相、溢流相及火山-沉积相;2) 储集空间以原生储集空间(原生孔隙)、次生储集空间(次生孔隙、裂缝)为主,并发育气孔+杏仁体内溶孔+裂缝型、气孔+溶蚀孔型、溶蚀孔+裂缝型及裂缝型4种储集空间组合类型;3) 火山岩储层物性整体较差,非均质性较强,为中低孔隙度中渗透率储层;4) 巴山组火山岩有利储层发育主要受岩性岩相、风化淋滤及构造破碎作用的控制。

关键词: 火山岩储层, 储层特征, 影响因素, 沙帐断褶带, 巴山组

Abstract: The volcanic rocks of the Carboniferous Bashan Formation are widely developed in the Shazhang fault-fold belt in eastern Jungaer Basin, and the exploration and development of the carboniferous volcanic gas field in the adjacent Wucaiwan Sag indicates that the carboniferous volcanic rocks in the study area also have the potential of reservoir formation. To provide support for volcanic oil and gas exploration in this area, this paper comprehensively studies the characteristics of volcanic reservoirs and their influencing factors by using drilling, rock sample, the microscopic chip, imaging logging, analysis data. The results show that: 1) volcanic rock reservoir lithology of Bashan Formation is mainly composed of volcanic lava, fused volcanic breccia, pyroclastic rock, volcanic-sedimentary rock and sub-volcanic rock, which can be identified as eruptive facies, overflow facies, volcanic-sedimentary facies; 2) the main reservoir space is primary reservoir space (primary pores) and secondary reservoir space (secondary pores and fractures), and there are four types of reservoir space combination: pore + dissolved pores in almond body + fracture, pore + dissolution pore, dissolution pore + fracture and fracture; 3) the volcanic rock is of medium-low porosity and medium permeability reservoir with poor overall physical property and heteroqeneity; 4) the development of favorable volcanic reservoir in Bashan Formation is mainly controlled by lithology and lithofacies, weathering and leaching, and tectonic fragmentation.

Key words: volcanic rock reservoir, reservoir characteristics, influencing factors, Shazhang fault-fold belt, Bashan Formation

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