石油学报 ›› 2025, Vol. 46 ›› Issue (4): 692-707.DOI: 10.7623/syxb202504003

• 地质勘探 • 上一篇    

松辽盆地北部中央隆起带岩浆岩潜山优质储层特征及控制因素

赵波1,2,3, 尹淑敏3, 李忠权1,2, 孙国昕3, 刘筝3, 李晶3   

  1. 1. 自然资源部构造成矿成藏重点实验室(成都理工大学) 四川成都 610059;
    2. 成都理工大学地球与行星科学学院 四川成都 610059;
    3. 大庆油田有限责任公司勘探开发研究院 黑龙江大庆 163712
  • 收稿日期:2024-09-18 修回日期:2024-10-31 发布日期:2025-05-10
  • 通讯作者: 李忠权,男,1965年1月生,1999年获成都理工大学博士学位,现为成都理工大学地球与行星科学学院教授,主要从事构造地质和石油天然气地质综合研究及教学工作。Email:2816719020@qq.com
  • 作者简介:赵波,男,1979年3月生,2005年获南京大学硕士学位,现为大庆油田有限责任公司勘探开发研究院二级工程师,主要从事构造地质、油气勘探研究工作。Email:bzjun@126.com
  • 基金资助:
    国家科技重大专项“大型油气田及煤层气开发”(2016ZX05047-001)和自然资源部构造成矿成藏重点实验室开放基金项目(gzck202203)资助。

Characteristics and controlling factors of high-quality reservoirs in magmatic rock buried-hill of the central uplift zone,northern Songliao Basin

Zhao Bo1,2,3, Yin Shumin3, Li Zhongquan1,2, Sun Guoxin3, Liu Zheng3, Li Jing3   

  1. 1. Key Laboratory of Tectonic Controls on Mineralization and Hydrogen Accumulation of Ministry of Natural Resources (Chengdu University of Technology), Sichuan Chengdu 610059, China;
    2. College of Earth and Planetary Sciences, Chengdu University of Technology, Sichuan Chengdu 610059, China;
    3. Exploration and Development Research Institute, Daqing Oilfield Limited Company, Heilongjiang Daqing 163712, China
  • Received:2024-09-18 Revised:2024-10-31 Published:2025-05-10

摘要: 中央隆起带岩浆岩潜山气藏是松辽盆地北部深层天然气风险勘探的重要领域之一,但其优质储层特征及控制因素尚不清晰,严重制约了气藏的勘探进程。利用钻井、测井、地震资料以及分析化验数据详细分析了中央隆起带岩浆岩潜山的储层特征及优质储层的控制因素。研究结果表明:中央隆起带岩浆岩潜山在垂向上分为风化堆积层、风化淋滤层、裂缝层和岩浆岩致密层;储层属于低孔、超低渗储层;储层的储集空间类型为粒间溶蚀孔、粒内溶蚀孔、石英原生晶间孔以及构造裂缝和微裂缝,与微裂缝沟通的微米—纳米级孔隙可为天然气的聚集提供储集空间;裂缝走向主要为NNW向、NNE向、NE向和NW向,裂缝倾角以中—高角度为主;花岗岩和碎裂花岗岩储层的物性相对较好、其裂缝发育、裂缝开启程度好,是中央隆起带岩浆岩潜山成储的优势岩性;多期构造叠加作用、风化淋滤作用和有机酸溶蚀作用,以及构造高部位等因素,控制了松辽盆地北部中央隆起带岩浆岩潜山优质储层的发育。研究为推进岩浆岩潜山的天然气勘探开发提供了依据。

关键词: 岩浆岩潜山, 优质储层, 控制因素, 中央隆起带, 松辽盆地北部

Abstract: The magmatic rock buried-hill gas reservoir in the central uplift zone of northern Songliao Basin is one of the important areas for risk exploration of deep natural gas, and the characteristics and controlling factors of high-quality reservoirs are still unclear, thus severely restricting the gas reservoir exploration process. Based on the drilling, logging, seismic data and analytical test data, this paper analyzes in detail the reservoir characteristics of magmatic rock buried-hill and the controlling factors of high-quality reservoirs in the central uplift zone. The research results show that the magmatic rock buried-hill in the central uplift zone can be vertically divided into weathered accumulation layer, weathering-leaching layer, fracture layer and tight magmatic rock layer, showing the characteristics of reservoirs with low-porosity and ultra-low permeability. The reservoir spaces include the intergranular dissolution pores, intragranular dissolution pores, quartz primary intergranular pores, structural fractures and micro-fractures. The micron and nanoscale pores communicating with micro-fractures can provide storage space for natural gas. The NNW-, NNE-, NE- and NW-trending fractures are mainly developed in the study area, with the medium to high dip angles. Granite and cataclastic granite reservoirs have relatively good physical properties, well-developed fractures, and high degree of fracture opening, and are the dominant lithologies of magmatic rock buried-hill reservoir in the central uplift zone. The controlling factors such as multi-stage structural superposition, weathering leaching, organic acid dissolution, and structural high locations have controlling effects on the development of high-quality reservoirs in magmatic rock buried-hill of the central uplift zone of northern Songliao Basin. The research results provide a reference for promoting the natural gas exploration and development in magmatic rock buried-hills.

Key words: magmatic rock buried-hill, high-quality reservoir, controlling factors, central uplift zone, northern Songliao Basin

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