Genesis of heterogeneity in the deep and ultra-deep tight sandstone reservoirs of the second member of the Triassic Xujiahe Formation， Western Sichuan Depression， Sichuan Basin

YANG Tian; CUI Rong; HOU Mingcai; ZHU Hongquan; WEN Xiaotao; TIAN Jingchun; LI Zheng; LIU Feiyang; CAI Laixiang

doi:10.11743/ogg20260507

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Genesis of heterogeneity in the deep and ultra-deep tight sandstone reservoirs of the second member of the Triassic Xujiahe Formation， Western Sichuan Depression， Sichuan Basin
“The heterogeneity of the deep reservoirs in the Xu-2 section of the Sichuan Basin is extremely strong. The variability of sedimentary environment and processes, diagenetic environment and material migration, as well as stress environment and fracture response, are the main reasons controlling the heterogeneity of different forms and scales of deep ultra deep reservoirs, providing key geological basis for dense oil and gas exploration and development.”
- role：First author第一作者
- Affiliation：
  State Key Laboratory of Oil and Gas Reservoir Geology and Exploration， Chengdu University of Technology， Chengdu， Sichuan 610059， China
  Key Laboratory of Deep-time Geography and Environment Reconstruction and Applications of Ministry of Natural Resources， Chengdu University of Technology， Chengdu， Sichuan 610059， China
- Email：yangtian19@cdut.edu.cn
- Introduction：杨田（1989—），男，研究员、博士研究生导师，沉积学和油气储层地质学。E-mail： yangtian19@cdut.edu.cn。
YANG Tian
12 * ,
- Affiliation：
  State Key Laboratory of Oil and Gas Reservoir Geology and Exploration， Chengdu University of Technology， Chengdu， Sichuan 610059， China
CUI Rong
1 * ,
- role：Corresponding author通信作者
- Affiliation：
  State Key Laboratory of Oil and Gas Reservoir Geology and Exploration， Chengdu University of Technology， Chengdu， Sichuan 610059， China
  Key Laboratory of Deep-time Geography and Environment Reconstruction and Applications of Ministry of Natural Resources， Chengdu University of Technology， Chengdu， Sichuan 610059， China
- Email：houmc@cdut.edu.cn
- Introduction：侯明才（1968—）男，教授、博士研究生导师，大地构造沉积学和层序岩相古地理学。E-mail： houmc@cdut.edu.cn。
HOU Mingcai
12 * ,
- Affiliation：
  Exploration & Production Research Institute， Southwest Oil & Gas Company， SINOPEC， Chengdu， Sichuan 610041， China
ZHU Hongquan
3 * ,
- Affiliation：
  State Key Laboratory of Oil and Gas Reservoir Geology and Exploration， Chengdu University of Technology， Chengdu， Sichuan 610059， China
WEN Xiaotao
1 * ,
- Affiliation：
  State Key Laboratory of Oil and Gas Reservoir Geology and Exploration， Chengdu University of Technology， Chengdu， Sichuan 610059， China
TIAN Jingchun
1 * ,
- Affiliation：
  State Key Laboratory of Oil and Gas Reservoir Geology and Exploration， Chengdu University of Technology， Chengdu， Sichuan 610059， China
LI Zheng
1 * ,
- Affiliation：
  State Key Laboratory of Oil and Gas Reservoir Geology and Exploration， Chengdu University of Technology， Chengdu， Sichuan 610059， China
LIU Feiyang
1 * ,
- Affiliation：
  State Key Laboratory of Oil and Gas Reservoir Geology and Exploration， Chengdu University of Technology， Chengdu， Sichuan 610059， China
CAI Laixiang
1 *
Vol. 47, Issue 5, Pages: 1526-1540(2026)
Revised：2026-08-17 ，
DOI：10.11743/ogg20260507
Accepted：

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Genesis of heterogeneity in the deep and ultra-deep tight sandstone reservoirs of the second member of the Triassic Xujiahe Formation， Western Sichuan Depression， Sichuan Basin

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Genesis of heterogeneity in the deep and ultra-deep tight sandstone reservoirs of the second member of the Triassic Xujiahe Formation， Western Sichuan Depression， Sichuan Basin

YANG Tian

CUI Rong

HOU Mingcai

ZHU Hongquan

WEN Xiaotao

TIAN Jingchun

LI Zheng

LIU Feiyang

CAI Laixiang

DOI：10.11743/ogg20260507

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