Results 21 to 30 of about 124,397 (269)

Application of five seismic attributes in natural fracture prediction for deep coalbed methane production along the eastern margin of the Ordos Basin

Meitian dizhi yu kantan
BackgroundNatural fractures serve as both the primary storage space for free gas of deep coalbed methane (CBM) and pathways for hydrocarbon migration. Furthermore, these fractures can enhance the porosity and permeability of strata under the deep, high ...
Jiangnan TONG, Feng WANG, Feng ZHANG, Wei HOU, Zhongbai LI, Liang JI, Yanan JIANG, Wei SUN   +7 more
doaj   +1 more source

Numerical and Experimental Investigations of the Interactions between Hydraulic and Natural Fractures in Shale Formations

Energies, 2018
Natural fractures (NFs) have been recognized as the dominant factors that increase hydraulic fracture complexity and reservoir productivity. However, the interactions between hydraulic and natural fractures are far from being fully understood.
Xin Chang, Yintong Guo, Jun Zhou, Xuehang Song, Chunhe Yang   +4 more
doaj   +1 more source

Effect of Multiple Flow Pulses on Hydraulic Fracture Network Propagation in Naturally Fractured Volcanic Rock

Energies, 2020
Exploring engineering methods for increasing fracture network complexity is important for the development of unconventional oil and gas reservoirs. In this study, we conducted a series of fracturing experiments on naturally fractured volcanic samples. An
Guangzhi Yang, Shicheng Zhang, Jia Wang, Ning Li, Xinfang Ma, Yushi Zou   +5 more
doaj   +1 more source

Hydraulic fracture propagation in naturally fractured reservoirs: Complex fracture or fracture networks [PDF]

Journal of Natural Gas Science and Engineering, 2019
Understanding the behavior of fluid-driven hydraulic fracture in naturally fractured reservoirs is crucial in the development of geothermal energy and unconventional reservoirs. This study presents a fully-coupled numerical model to investigate hydraulic propagation in naturally fractured reservoirs, along with a comprehensive discussion on field ...
openaire   +2 more sources

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

Reactivation of natural fractures network by hydraulic fracturing [PDF]

E3S Web of Conferences, 2020
Modelling the process of induced fracture initiation, propagation and interaction with natural fractures is a very challenged task. Significant progress has been made in recent years in the development of complex fracture models to address the needs for more suitable design tools than the conventional planar fracture models.
L. L. Alvarez, Leila Brunet de Sá Beserra, Leonardo José do Nascimento Guimarães, Osvaldo L. Manzoli   +3 more
openaire   +2 more sources

Fracturing Fluid Leak-off for Deep Volcanic Rock in Zhungeer Basin: Mechanism and Control Method

MATEC Web of Conferences, 2017
The deep volcanic reservoir in Zhungeer Basin is buried in over 4000m depth, which is characterized by complex lithology (breccia, andesite, basalt, etc.), high elastic modulus and massive natural fractures.
Huang Bo, Cheng Hao, He Yidong, Fu Yanming   +3 more
doaj   +1 more source

Forward Modeling of Natural Fractures within Carbonate Rock Formations with Continuum Damage Mechanics and Its Application in Fuman Oilfield

Energies, 2022
Accurate information about the distribution of natural fractures is a key factor for the success of the exploration and development of oil and gas in carbonate rock formations.
Ming Yi, Xinpu Shen, Lixin Jin, Jianliang Wang, Zhiqiang Huang, Guoyang Shen   +5 more
doaj   +1 more source

Study on characteristics, efficiency, and variations of water flooding in different stages for low permeability oil sandstone

Energy Science & Engineering
Water flooding is an important way to improve recovery in low‐permeability sandstone oil reservoirs. How to decouple the water flooding process using dynamic and static information is a hot topic.
Houjiang Fan, Xiaoqiang Liu, Gang Li, Xiang Li, Ahmed E. Radwan, Shuai Yin   +5 more
doaj   +1 more source

Ofatumumab in Myelin Oligodendrocyte Glycoprotein Antibody–Associated Disease: A Comparison With Rituximab

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate the efficacy and safety of ofatumumab in patients with myelin oligodendrocyte glycoprotein antibody–associated disease (MOGAD), and compare it with rituximab. Methods We conducted a single–center, observational study including 22 MOGAD patients treated with ofatumumab and 21 treated with rituximab.
Yuxin Fan, Lei Zhou, Jingzi ZhangBao, Hongmei Tan, Zhouzhou Wang, Chao Quan   +5 more
wiley   +1 more source