Results 71 to 80 of about 10,568 (208)

Development characteristics of natural fractures in horizontal wells for deep shale gas and their implications for enhanced development: a case study of Wufeng-Longmaxi formations in Luzhou area, southern Sichuan Basin

Shiyou shiyan dizhi
The analysis of natural fracture development characteristics is crucial for evaluating deep shale gas exploration and development. It provides valuable insights for assessing reservoir quality comprehensively and designing fracturing strategies ...
Xuefeng YANG, Ziqiang XIA, Shengxian ZHAO, Yuanhan HE, Ruiqi GAO, Lieyan CAO   +5 more
doaj   +1 more source

Construction of a novel brittleness index equation and analysis of anisotropic brittleness characteristics for unconventional shale formations

Petroleum Science, 2019
The brittleness prediction of shale formations is of interest to researchers nowadays. Conventional methods of brittleness prediction are usually based on isotropic models while shale is anisotropic.
Ke-Ran Qian, Tao Liu, Jun-Zhou Liu, Xi-Wu Liu, Zhi-Liang He, Da-Jian Jiang   +5 more
doaj   +1 more source

Early development of anoxia prior to the main euxinic phase of the Jenkyns Event on the margin of the Western Tethys (Sachrang Basin, Eastern Alps)

Sedimentology, EarlyView.
ABSTRACT Although the global expansion of oxygen‐depleted marine environments during the Early Toarcian Jenkyns Event (or Toarcian Oceanic Anoxic Event) is primarily inferred from successions in the NW European epicontinental basins, the timing of the expansion of anoxia in Tethyan basins, where hydrography potentially played a minor role, is poorly ...
Tamás Müller, Stefan Neumeister, Jan Schlögl, Emanuela Mattioli, Hans‐Jürgen Gawlick, Thomas J. Algeo, Adam Tomašových   +6 more
wiley   +1 more source

Salt Range Formation of Pakistan Preserves Unique Record of Volcanic Fertilization During the Ediacaran Shuram Excursion

Terra Nova, EarlyView.
ABSTRACT Thin, discontinuous, organic‐rich oil shale beds in the siliciclastic‐evaporitic Salt Range Formation (SRF) of Pakistan are of approximate Neoproterozoic to Cambrian age based on stratigraphic constraints. The beds are enriched (26–43 wt.% total organic carbon, TOC) in aliphatic organic matter (OM) of low thermal maturity despite their ...
Paul C. Hackley, Ryan J. McAleer, Jay M. Thompson, Brett J. Valentine, Imran Khan   +4 more
wiley   +1 more source

Effects of the Sedimentary Environment on Organic-Rich Shale in the Intracratonic Sag of the Sichuan Basin, China

Applied Sciences
The enrichment of organic matter in high-quality marine shale is generally controlled by factors such as the redox conditions of sedimentary environments, productivity levels, terrigenous input, and ancient productivity.
Xuewen Shi, Jia Liu, Yiqing Zhu, Liang Xu, Yuran Yang, Chao Luo, Yanyou Li, Kesu Zhong, Xue Yang, Qiuzi Wu, Liang He, Demin Shi, Xingzhi Wang   +12 more
doaj   +1 more source

Sedimentary microfacies and environment of Paleogene carbonate-rich shale in Dongying Sag, Bohai Bay Basin

Shiyou shiyan dizhi
The identification, classification, and integration of microfacies characteristics of carbonate-rich shale in the Dongying Sag of the Bohai Bay Basin are fundamental for understanding the sedimentary origin and spatial structure of related sediments ...
Weiqing WANG, Pengbo LI, Bo LI, Zhengwei FANG, Yuhuan WANG   +4 more
doaj   +1 more source

Numerical simulation on fracturing fluid flowback from post-fracturing shale gas wells and influencing factors

Journal of Petroleum Exploration and Production Technology
Fracture network fracturing is a key technology to achieve economic and effective development of shale gas. The flowback data after hydraulic fracturing is crucial to the characterization of hydraulic fracture networks and reservoir evaluation.
Dengji Tang, Jianfa Wu, Jinzhou Zhao, Bo Zeng, Yi Song, Cheng Shen, Lan Ren, Yiting Wang, Zhenhua Wang   +8 more
doaj   +1 more source

High-Precision Density Log Reconstruction Method Based on the RF-Transformer Algorithm

Applied Sciences
Under the backdrop of digital subsurface and intelligent field development, together with sustainable development planning, reliable and continuous well-log measurements are increasingly essential for reservoir evaluation and geological interpretation ...
Junlei Su, Xu Dong, Yu Zeng, Peidong Liu, Xueying Shi, Wenqi Shi   +5 more
doaj   +1 more source

Opening of Bedding-Parallel Fractures in the Shale Oil Reservoirs of the Paleogene Funing Formation, Subei Basin, China

Energies
Bedding-parallel fractures represent a crucial flow-path network in shale oil reservoirs, yet their timing of opening and driving mechanisms remain subjects of long-standing debate.
Zhelin Wang, Ao Su, Dongling Xia, Xinrui Lyu, Xingwei Wu   +4 more
doaj   +1 more source

New Insights into How the Rupture Radius of Deep Fault Rupture Affects the Magnitude of Induced Earthquakes

Applied Sciences
Underground fluid injection is regarded as one of the important factors inducing seismic activity. This study therefore proposes a method to predict the maximum damage area and seismic magnitude induced by fluid injection, in order to quantify the ...
Youquan Huang, Cuilong Kong, Dawei Deng, Yu Wang, Baohuai Hou, Peng Liu, Tianyu Chen, Xiaoyu Zhang   +7 more
doaj   +1 more source