Results 61 to 70 of about 310 (158)

Joint Extraction Method for Spatial Relations in Chinese Geological Texts

Earth and Space Science, Volume 12, Issue 8, August 2025.
Abstract Extracting spatial relations of geological entities is an important prerequisite for achieving natural language processing tasks such as geological knowledge question answering and semantic search, and is an important means to achieve structural reconstruction of unstructured geological data.
Chuan Chen, Xiuguo Liu, Weihua Hua, Xinling Zeng, Zihan Cao, Peng Li, Chunyu Qi, Yu Huang, Jiameng Chen, Wencheng Wei   +9 more
wiley   +1 more source

Multidimensional Characterization of Formation Damage Mechanisms in Ancient Carbonate Reservoirs: Synergistic Effects of Inorganic‐Organic Interactions

Energy Science &Engineering, Volume 13, Issue 6, Page 2663-2671, June 2025.
ABSTRACT Formation clogging in carbonate gas reservoirs is a significant challenge in natural gas extraction, particularly due to the complex mineral composition and physicochemical characteristics of carbonate rocks, which make clogging phenomena even more complex. This study aims to delve into the formation mechanisms of formation plugs in carbonate
Jin Pang, Tongtong Wu, Xinan Yu, Hong Liu, Chunxi Zhou, Haotian Chen   +5 more
wiley   +1 more source

Origin and Formation of Pyrobitumen in Sinian–Cambrian Reservoirs of the Anyue Gas Field in the Sichuan Basin: Implications from Pyrolysis Experiments of Different Oil Fractions

, 2021
Plenty of pyrobitumens were found throughout the Sinian Dengying and Cambrian Longwangmiao reservoirs of the Anyue gas field in the central Sichuan Basin.
Zhou, Qin, He, Chunmin, Hui Tian, Xing Wang, Wang, Xing, Tian, Hui, Qin Zhou, Chunmin He   +7 more
core   +1 more source

New Pattern of Uplift‐Depression of the Pre‐Cambrian Basement in the Sichuan Basin: Constraints From Multi‐Seismic Parameter Imaging

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 6, June 2025.
Abstract The structural configuration of the pre‐Cambrian basement in the Sichuan Basin, a highly promising region for hydrocarbon exploration, has been a subject of long‐standing debate. Here, we determined the fine‐scale three‐dimensional seismic models of the Sichuan Basin using 187,356 high‐quality P‐ and S‐wave travel time pairs recorded by 627 ...
Zhi Wang, Qiuding Du, Jian Wang, Yinyu Wen, Gang Zhou, Yuan He, Xiugen Fu   +6 more
wiley   +1 more source

Towards an improved understanding of Ca–Mg carbonates with nonplanar surfaces: An experimental approach

Sedimentology, Volume 72, Issue 1, Page 100-131, January 2025.
ABSTRACT Saddle dolomite is a Ca–Mg carbonate characterized by curved crystal faces, curved cleavage and sweeping extinction under cross‐polarized light. Saddle dolomite and, generally, Ca–Mg carbonates with curved crystal faces, are often assigned to the burial (hydrothermal) realm and serve as proxy archives for hydrogeochemical processes in ...
Yi‐Fan Zhang, Mathias Mueller, René Hoffmann, Sylvia Riechelmann, Sumit Chakraborty, Stephen E. Kaczmarek, Christopher Beyer, Adrian Immenhauser   +7 more
wiley   +1 more source

Enrichment Mechanism of the Organic‐Rich Shale in Ediacaran Doushantuo Formation in Western Sichuan Basin, South China

Geofluids, Volume 2025, Issue 1, 2025.
The Ediacaran Doushantuo Formation in South China has been increasingly recognized as a significant potential source rock for hydrocarbon reservoirs, particularly in relation to the overlying Dengying Formation. This study conducts a comprehensive geochemical analysis of the organic‐rich shale from the Ebian‐Xianfeng section within the Sichuan Basin ...
Bokai Dai, Xingzhi Ma, Fan Yang
wiley   +1 more source

Height Propagation Law and Controlling Strategies of Acid Fractures in Carbonate Gas Reservoirs With Bottom Water Layer Under Different Stress Profiles

Geofluids, Volume 2025, Issue 1, 2025.
Acid fracturing is currently employed to develop the carbonate gas reservoir in the second section of the Dengying Formation at the Anyue Gas Field, Sichuan Basin. However, improper acid‐fracturing operational parameters pose a risk of fracture communication with the bottom water layer, leading to increased water production and a significant decline in
Jian Yang, Weihua Chen, Zixi Jiao, Jiexiao Ye, Song Li, Qiuyun Hu, Haiyan Zhu, Zhaopeng Zhang, Pramita Mishra   +8 more
wiley   +1 more source

The Neoproterozoic Ediacaran Kaijiang-Xuanhan paleo-uplift in the Sichuan Basin, Western China

Frontiers in Earth Science
The structural characteristics and formation evolution of the Sinian Kaijiang-Xuanhan paleo-uplift play a foundational role in the formation and evolution of the Sichuan Basin.
Ran Guo, Ran Guo, Zeqi Li, Jianxue Wu, Shugen Liu, Wei Sun, Peng Wang, Bin Deng, Liwei You, Zhiyi Liu   +9 more
doaj   +1 more source

Accurate sectional and differential acidizing technique to highly deviated and horizontal wells for low permeable Sinian Dengying formation in Sichuan Basin of China

SN Applied Sciences, 2022
AbstractThe Sinian Dengying formation reservoirs in Sichuan Basin of China have characteristics of high temperature, high pressure, deep buried depth, strong heterogeneity, low porosity and permeability, rich pore, natural fractures, vugs and high concentration H2S, CO2, which limit the reconstruction technologies about the gas reservoir. The formation
Song Li, Yu Fan, Jian Yang, Liqiang Zhao, Jiexiao Ye, Weihua Chen   +5 more
openaire   +2 more sources

Tectonic Fracture Characterization and Stress Analysis in Complex Fault Block Formations: A Case Study in the Second Member of Dengying Formation in Central Sichuan

Geofluids, Volume 2025, Issue 1, 2025.
The Dengying Formation within Pengtan 1 well area in the Sichuan Basin is a vital gas reservoir for exploration and development. The reservoir is situated in a complex fault block structure characterized by multistage fault evolution, leading to a complicated distribution of tectonic fractures crucial for the accumulation and migration of oil and gas ...
Yu Fan, Jianhua Guo, Xu Yang, Xihui Hu, Xinyu Shen, Qiutong Wang, Yijia Tang, Naser Golsanami   +7 more
wiley   +1 more source