+高级检索
首页 > 过刊浏览>2025年第70卷第3期 >2025030019-2025030019. DOI:10.16509/j.georeview.2025.06.001
PDF HTML阅读 XML下载 导出引用 引用提醒
四川盆地天宫堂地区五峰组—龙马溪组断裂发育与页岩气保存机制
作者:
基金项目:

本文为国家重点研发计划项目（编号：2021YFA071900）；国家自然科学基金资助项目（编号：41872127）；重庆市自然科学基金创新发展联合基金资助项目（编号：CSTB2024NSCQ- LZX0108）；中国石油天然气集团有限公司科技项目“新区新层系有利区优选与勘探评价关键技术研究”（编号：2023ZZ21- 04）和中国石油天然气集团有限公司西南油气田分公司页岩气研究院院级专项项目“川南深层页岩气储集下限与差异性保存机制”（编号：JS2022- 35）的成果


Development of Wufeng Formation—Longmaxi Formation fault and shale gas preservation mechanism in Tiangongtang area, Sichuan Basin
Author:
单位:
  • 1) 油气资源与工程全国重点实验室，北京，102249；2) 中国石油大学（北京）地球科学学院，北京，102249；3) 中国石油西南油气田分公司，成都，610051    
  • 1) 油气资源与工程全国重点实验室，北京，102249；2) 中国石油大学（北京）地球科学学院，北京，102249    
  • 1) 油气资源与工程全国重点实验室，北京，102249；2) 中国石油大学（北京）地球科学学院，北京，102249    
  • 4) 页岩气评价与开采四川省重点实验室，成都，610213；5) 中国石油西南油气田分公司页岩气研究院，成都，610051    
  • 4) 页岩气评价与开采四川省重点实验室，成都，610213；5) 中国石油西南油气田分公司页岩气研究院，成都，610051    
  • 4) 页岩气评价与开采四川省重点实验室，成都，610213；5) 中国石油西南油气田分公司页岩气研究院，成都，610051    
  • 4) 页岩气评价与开采四川省重点实验室，成都，610213；5) 中国石油西南油气田分公司页岩气研究院，成都，610051    
  • 4) 页岩气评价与开采四川省重点实验室，成都，610213；5) 中国石油西南油气田分公司页岩气研究院，成都，610051    
  • 1) 油气资源与工程全国重点实验室，北京，102249；2) 中国石油大学（北京）地球科学学院，北京，102249    
  • 1) 油气资源与工程全国重点实验室，北京，102249；2) 中国石油大学（北京）地球科学学院，北京，102249    
  • 1) State Key Laboratory of Petroleum Resources and Engineering, Beijing, 102249;2) College of Geosciences, China University of Petroleum (Beijing), Beijing, 102249;3) PetroChina Southwest Oil and Gas Field Company, Chengdu, 610051    
  • 1) State Key Laboratory of Petroleum Resources and Engineering, Beijing, 102249;2) College of Geosciences, China University of Petroleum (Beijing), Beijing, 102249    
  • 1) State Key Laboratory of Petroleum Resources and Engineering, Beijing, 102249;2) College of Geosciences, China University of Petroleum (Beijing), Beijing, 102249    
  • 4) Shale Gas Research Institute of PetroChina Southwest Oil and Gas Field Company, Chengdu, 610051;5) Key Laboratory of Shale Gas Evaluation and Exploitation of Sichuan Province, Chengdu, 610213    
  • 4) Shale Gas Research Institute of PetroChina Southwest Oil and Gas Field Company, Chengdu, 610051;5) Key Laboratory of Shale Gas Evaluation and Exploitation of Sichuan Province, Chengdu, 610213    
  • 4) Shale Gas Research Institute of PetroChina Southwest Oil and Gas Field Company, Chengdu, 610051;5) Key Laboratory of Shale Gas Evaluation and Exploitation of Sichuan Province, Chengdu, 610213    
  • 4) Shale Gas Research Institute of PetroChina Southwest Oil and Gas Field Company, Chengdu, 610051;5) Key Laboratory of Shale Gas Evaluation and Exploitation of Sichuan Province, Chengdu, 610213    
  • 4) Shale Gas Research Institute of PetroChina Southwest Oil and Gas Field Company, Chengdu, 610051;5) Key Laboratory of Shale Gas Evaluation and Exploitation of Sichuan Province, Chengdu, 610213    
  • 1) State Key Laboratory of Petroleum Resources and Engineering, Beijing, 102249;2) College of Geosciences, China University of Petroleum (Beijing), Beijing, 102249    
  • 1) State Key Laboratory of Petroleum Resources and Engineering, Beijing, 102249;2) College of Geosciences, China University of Petroleum (Beijing), Beijing, 102249    
  • 摘要
    • | |
  • 访问统计
    • |
  • 参考文献
    • |
  • 相似文献
    • |
  • 引证文献
    • | |
  • 文章评论
    摘要:

    四川盆地天宫堂地区深层页岩气资源丰富，勘探程度较低，同时复杂的构造发育条件严重制约了页岩气勘探开发效果。笔者等基于研究区页岩地质特征和地震资料，结合典型井资料整理及平衡剖面恢复技术，探讨了该区断裂发育特征及其对页岩气保存的影响。研究表明：①天宫堂地区五峰组—龙马溪组主要发育4级断裂，其中Ⅰ级断裂主要集中于构造边缘，北部以Ⅲ、Ⅳ级断裂为主，南部主要发育Ⅱ、Ⅲ、Ⅳ级断裂。②天宫堂地区断裂形成主要划分为3个主要阶段：燕山晚期受SN向挤压形成NW向和NWW向为主的断裂；喜马拉雅早期受NNE—SSW向挤压形成NW向为主的断裂；喜马拉雅中期以来受NWW—SEE向区域构造走滑应力作用下形成NE向断裂。③断裂对页岩气保存的影响与断裂规模及距断裂距离相关，距Ⅰ级断裂距离>5 km、Ⅱ级断裂3~5 km、Ⅲ级断裂>2 km时，含气量均超过3.0 m3/t，保存条件较好；Ⅳ级断裂对页岩气保存影响较小。此外，断裂的发育程度在埋藏演化的不同阶段呈现明显差异，埋藏阶段断裂发育较少，对页岩气保存影响轻微；缓慢抬升阶段则因挤压抬升作用，大规模断裂发育对保存条件造成严重破坏；快速抬升阶段断裂发育和改造更加剧了页岩气的散失。研究明确了天宫堂地区页岩气保存机制，为进一步勘探开发提供了理论支持。

    Abstract:

    The deep shale gas resources in the Tiangongtang area of the Sichuan Basin are rich, but the exploration degree is relatively low. At the same time, the complex structural development conditions in this region seriously restrict the results of shale gas exploration and development.Methods: This study is based on the shale geological features and seismic data of the research area, using typical well data and balance profile restoration to investigate the fault development characteristics in the area and their effects on shale gas preservation.Results: The study shows that: ① In the Tiangongtang area, the Wufeng Formation — Longmaxi Formation primarily develops four levels of fractures, with level Ⅰ fractures mainly developed in the structural edge areas, level Ⅲ and Ⅳ fractures dominant in the north, and level Ⅱ, Ⅲ, and Ⅳ fractures primarily developed in the south. ② The formation of fractures in the Tiangong Tang area is mainly divided into three stages: during the late Yanshan period, SN compression formed fractures predominantly in the NW and NWW directions; in the early Himalayan period, NNE—SSW compression formed fractures mainly in the NW direction; since the mid- Himalayan period, NWW—SEE regional tectonic strike- slip stress has resulted in the formation of NE- dominant fractures. ③ The influence of fractures on shale gas retention is characterized by an increased gas content the further away one is from the fault; different scales of fractures have varying impacts on shale gas retention. When the distance from level Ⅰ fractures exceeds 5 km, level Ⅱ fractures are between 3~5 km, and level Ⅲ fractures exceed 2 km, the gas content exceeds 3.0 m 3/t, indicating good shale gas retention conditions; level Ⅳ fractures have a minimal impact on shale gas retention.Conclusions: The development of faults varies significantly across different stages of burial evolution. During the burial stage, fault development is minimal, and its impact on shale gas preservation is negligible. During the slow uplift stage, large- scale fault development caused by compressive uplift severely damages preservation conditions. During the rapid uplift stage, fault development and reactivation further exacerbate shale gas loss.The study clarifies the shale gas preservation mechanism in the Tiangongtang area, providing theoretical support for further exploration and development.

    参考文献
    相似文献
    引证文献
引用本文

刘文平,贺昱搏,刘成林,刘佳,徐亮,吴喆,钟可塑,伍秋姿,李帅智,刘琳.2025.四川盆地天宫堂地区五峰组—龙马溪组断裂发育与页岩气保存机制[J].地质论评,70(3):2025030019,[DOI].
LIU Wenping, HE Yubo, LIU Chenglin, LIU Jia, XU Liang, WU Zhe, ZHONG Kesu, WU Qiuzi, LI Shuaizhi, LIU Ling.2025. Development of Wufeng Formation—Longmaxi Formation fault and shale gas preservation mechanism in Tiangongtang area, Sichuan Basin[J]. Geological Review,70(3):2025030019.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2024-10-26
  • 最后修改日期:2025-06-05
  • 在线发布日期: 2024-05-19
  • 出版日期: 2023-05-15
您是第 位访问者
主管单位：中国科学技术协会
主办单位：中国地质学会
地址：北京阜成门外百万庄路26号
电话：010-68999804

京公网安备 11000002000088号 | 京ICP备11041704号
地质论评 ® 2025 版权所有