Results 1 to 10 of about 250,673 (183)

Investigation of the Impact of Natural Fracture Geomechanics on the Efficiency of Oil Production and CO₂ Injection from/to a Petroleum Structure: A Case Study

Energies, 2023
The paper addresses the problem of geomechanical effects in the vicinity of production/injection wells and their impacts on the processes of enhanced oil recovery by CO2 injection and CO2 sequestration in a partially depleted oil reservoir. In particular,
Wiesław Szott, Piotr Ruciński, Małgorzata Słota-Valim, Krzysztof Sowiżdżał   +3 more
doaj   +1 more source

Fracture Characterization of Lower Cambrian Niutitang Shale in Cen’gong Block, Southern China

Frontiers in Earth Science, 2022
The marine shale of southern China is characterized by old sedimentary formations, multiple tectonic activities, and poor preservation conditions. The fracture system in this shale reservoir is extraordinarily complex, greatly adding to difficulties for ...
Xinghua Wang, Xinghua Wang, Xinghua Wang, Ruyue Wang, Rongtao Guo, Arash Dahi Taleghani, Shuaitao Su, Wenlong Ding, Yue Gong, Fuqiang Lai, Zhonghu Wu, Yushan Su, Zhe Cao   +12 more
doaj   +1 more source

A Novel Optimization Workflow Coupling Statistics-Based Methods to Determine Optimal Well Spacing and Economics in Shale Gas Reservoir with Complex Natural Fractures

Energies, 2020
In order to account for big uncertainties such as well interferences, hydraulic and natural fractures’ properties and matrix properties in shale gas reservoirs, it is paramount to develop a robust and efficient approach for well spacing optimization.
Cheng Chang, Chuxi Liu, Yongming Li, Xiaoping Li, Wei Yu, Jijun Miao, Kamy Sepehrnoori   +6 more
doaj   +1 more source

Fracture characteristics of the 8th member of Shihezi formation in Linxing Area and its influence on fracturing effect

矿业科学学报, 2021
In order to study the influence of natural fractures on fracturing effect of the 8th member of Shihezi formation in Linxing area, the characteristics of natural fractures in Linxing area are described based on field joint observation and imaging logging ...
Li Jianhong, Wang Yanbin
doaj   +1 more source

Distribution pattern of natural fractures in lacustrine shales: a case study of the Fengcheng formation in the Mahu Sag of the Junggar Basin, China

Frontiers in Earth Science, 2023
The Lower Permian Fengcheng Formation in the Mahu Sag develops a set of organic-rich alkaline lacustrine shale strata, which is a key area for shale oil exploration and development.
Guoyong Liu, Zhijun Jin, Zhijun Jin, Sen Yang, Lianbo Zeng, Lianbo Zeng, Wenjun He, Xiaoyu Du, Guoqing Lu, Guoping Liu   +9 more
doaj   +1 more source

Numerical Simulation Research on the Interactive Propagation of Hydraulic Fractures and Natural Fractures [PDF]

E3S Web of Conferences, 2021
In order to study the fracture propagation behavior after the interaction between hydraulic fractures and natural fractures, the cohensive unit of Abaqus finite element software is used to simulate the influence of natural fractures in the rock on the ...
Asiri Waleed Abdullah I, Xiaoming Ma
doaj   +1 more source

A new study of multi-phase mass and heat transfer in natural gas hydrate reservoir with an embedded discrete fracture model

Frontiers in Earth Science, 2023
Studies of the hydrate cores have shown that natural fractures can be frequently observed in hydrate reservoirs, resulting in a fracture-filled hydrate.
Yudong Cui, Yudong Cui, Bailu Teng, Wanjing Luo, Cheng Lu, Cheng Lu, Cheng Lu, Yingfang Zhou   +7 more
doaj   +1 more source

Experimental tests and EDFM method to study gas injection in a fractured granite reservoir

Frontiers in Energy Research, 2023
The development of granite reservoirs with high dip fractures has many difficulties, such as a high decline rate, early water breakthrough, and numerous economic losses.
Zhiquan Nie, Feng Xu, Feng Xu, Jingqi Ouyang, Xiangling Li, Juntao Zhang, Shiliang Liu, Jinqiang Han, Da Li   +8 more
doaj   +1 more source

Characterizing Natural Fractures and Their Interactions with Hydraulically Induced Fractures [PDF]

, 2018
Natural fractures are preexisting micro-cracks and fissures that can have a critical impact on hydraulic fracture treatments in shales. Most shale formations contain natural fractures, but the characteristics of these natural fractures can vary ...
Amandes, Charlotte
core   +2 more sources

Temporary brittle bone disease:association with intracranial bleeding [PDF]

, 2013
We report 20 infants aged between 1 month and 6 months found to have subdural bleeding and also multiple unexplained fractures in a pattern similar to that described earlier as temporary brittle bone disease. Child abuse seemed unlikely as a cause of the
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