Results 71 to 80 of about 4,180,597 (190)

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

Late Ediacaran cavity-dwelling filamentous microorganisms accommodated in a valve-like organism from the uppermost Dengying Formation in eastern Yunnan of South China

, 2022
The Ediacaranâ\u80\u93Cambrian transition, one of the major turning points in Earthâ\u80\u99s history, is characterized by an epoch-making change in biosphere. In South China, the late Ediacaran Dengying Formation (ca.
Yanlong Chen, Fang, Ruisen, Yue Liang, Liang, Yue, Ruisen Fang, Hong Hua, Liu, Fan, Fan Liu, Holmer, Lars E., Hua, Hong, Chen, Yanlong, Zhang, Zhifei, Lars E. Holmer, Zhifei Zhang, Holmer, Lars E.,, Liang, Yue,   +15 more
core   +1 more source

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

Primary microfossiliferous chert in the Aptian Barra Velha Formation

Sedimentology, Volume 71, Issue 6, Page 1815-1842, October 2024.
ABSTRACT The Barra Velha Formation and other Aptian pre‐salt deposits record the history of the proto‐Atlantic basin and the rifting of Gondwana. Studies have sought to characterize the depositional environment of the basin with a focus on carbonate fabrics and magnesium silicate clays.
Kelsey R. Moore, Antoine Crémière, Theodore M. Present, Andrew Barnett, Kristin D. Bergmann, Joachim Amthor, John Grotzinger   +6 more
wiley   +1 more source

Sphalerite Records Cd Isotopic Signatures of the Parent Rocks in Hydrothermal Systems: A Case Study From the Nayongzhi Zn–Pb Deposit, Southwest China

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 5, May 2024.
Abstract Metal stable isotopes (e.g., Zn, Cd, and Cu) have been used to track metal sources in different types of hydrothermal systems. However, metal isotopic variations in sulphides could be triggered by various factors such as mineral precipitation and fluid mixing.
Wenrui Song, Chuanwei Zhu, Hanjie Wen, Zhilong Huang, Chen Wei, Yuxu Zhang, Zhengbing Zhou, Zhen Yang, Xiaocui Chen, Béatrice Luais, Christophe Cloquet   +10 more
wiley   +1 more source

Retrogradation of carbonate platforms on a rifted margin: the late Ediacaran record of the northwestern Yangtze Craton (SW China)

Frontiers in Earth Science
The Late Ediacaran Dengying Formation, located in the Sichuan Basin of the northwestern Yangtze Craton, is of significant interest in oil and gas exploration due to its abundant pores and vugs within microbial mound-shoal complexes.
Maolong Xia, Benjian Zhang, Song Jia, Chunni Zhao, Mingyou Feng, Junxin Shang, Chao Zhang, Yong Li, Yiwen Li   +8 more
doaj   +1 more source

Morphological disparity and evolutionary patterns of Cambrian hyoliths

Papers in Palaeontology, Volume 10, Issue 2, March/April 2024.
Abstract Hyolitha represent one of the major constituents of the Cambrian Evolutionary Fauna, first appearing in the Terreneuvian and rapidly diversifying soon after. Recent work has both enriched the hyolith fossil record and expanded our understanding of their biology, but studies documenting the evolutionary trajectory of Cambrian hyoliths remain ...
Fan Liu, Timothy P. Topper, Luke C. Strotz, Yue Liang, Yazhou Hu, Christian B. Skovsted, Zhifei Zhang   +6 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

Decline and fall of the Ediacarans: late‐Neoproterozoic extinctions and the rise of the modern biosphere

Biological Reviews, Volume 99, Issue 1, Page 110-130, February 2024.
ABSTRACT The end‐Neoproterozoic transition marked a gradual but permanent shift between distinct configurations of Earth's biosphere. This interval witnessed the demise of the enigmatic Ediacaran Biota, ushering in the structured trophic webs and disparate animal body plans of Phanerozoic ecosystems.
Giovanni Mussini, Frances S. Dunn
wiley   +1 more source

Reservoir types and well logging identification of the Sinian Dengying Formation in the Central Sichuan region

Carsologica Sinica
The Sinian Dengying Formation, situated in the Central Sichuan region, lies at the eastern high point of the Longnvsi ancient uplift axis in Leshan. This formation possesses both oil source and preservation conditions, making it a promising site for ...
Zheng ZHOU, Hongju HE, Dahua LI, Ye ZHANG, Hongkai CHEN, Xingzhi WANG, Tao YU, Li HE, Huan SU   +8 more
doaj   +1 more source