Results 61 to 70 of about 98,352 (281)

A hydraulic fracture height mathematical model considering the influence of plastic region at fracture tip

Petroleum Exploration and Development, 2020
To predict fracture height in hydraulic fracturing, we developed and solved a hydraulic fracture height mathematical model aiming at high stress and multi-layered complex formations based on studying the effect of plastic region generated by stress ...
Yuwei LI, Min LONG, Jizhou TANG, Mian CHEN, Xiaofei FU   +4 more
doaj   +1 more source

Fracture propagation laws of staged hydraulic fracture in fractured geothermal reservoir based on phase field model

International Journal of Coal Science & Technology, 2023
Hydraulic fracturing is widely used in geothermal resource exploitation, and many natural fractures exist in hot dry rock reservoirs due to in-situ stress and faults.
Genbo Peng
doaj   +1 more source

Fractal model and Lattice Boltzmann Method for Characterization of Non-Darcy Flow in Rough Fractures. [PDF]

, 2017
The irregular morphology of single rock fracture significantly influences subsurface fluid flow and gives rise to a complex and unsteady flow state that typically cannot be appropriately described using simple laws.
Chang, Chun, Ju, Yang, Xie, Heping, Zhang, Qingang, Zheng, Jiangtao   +4 more
core   +1 more source

Hydrogel‐Based 3D‐Printable Stretchable Pressure Sensor

Advanced Materials Technologies, EarlyView.
We present a carbon‐black‐functionalized double‐network granular hydrogel (DNGH) pressure sensor capable of detecting pressures from 200 Pa, equivalent to a light finger touch, up to 500 kPa. The sensor exhibits signal drifts below 3.5% after 800 cycles and response times around 80 ms. Leveraging this broad sensing range, we 3D print this material into
Tianyu Yuan, Chenzhuo Li, Antonia Georgopoulou, John M. Kolinski, Esther Amstad   +4 more
wiley   +1 more source

The influence mechanism of natural fractures on hydraulic fracture propagation in Mabei shale reservoir

Frontiers in Earth Science
The resource potential of shale in Fengcheng formation in Mabei is huge, but it must rely on efficient hydraulic fracturing technology to obtain reservoir stimulation and achieve economic development.
Gan Renzhong, Fu Lianming, Ruan Dong, Wu Yue, Hu Sicheng, Ding Yi, Liu Xiangjun   +6 more
doaj   +1 more source

A 2D explicit numerical scheme–based pore pressure cohesive zone model for simulating hydraulic fracture propagation in naturally fractured formation

Energy Science & Engineering, 2019
In this work, a 2D pore pressure cohesive zone model is presented to simulate the hydraulic fracture propagation in naturally fractured formation, in which the fracturing process is governed by a bilinear cohesive zone model equipped with Coulomb's ...
Yang Li, Wei Liu, Jingen Deng, Yingxin Yang, Haiyan Zhu   +4 more
doaj   +1 more source

Experimental and Numerical Simulation Study of Hydraulic Fracture Propagation during Coalbed Methane Development

Geofluids, 2021
The extraction of low-permeability coalbed methane (CBM) has the dual significance of energy utilization and safe mining. Understanding hydraulic fracturing mechanism is vital to successful development of CBM.
Qingshan Ren, Yaodong Jiang, Pengpeng Wang, Guangjie Wu, Nima Noraei Danesh   +4 more
doaj   +1 more source

Hydraulic Fracture Propagation and Proppant Transport Mechanism in Interlayered Reservoir

Energies, 2023
Hydraulic fracture is crucial for assuring well production from unconventional reservoirs. For the optimization of hydraulic fracture geometry and the ensuing production of an interlayered reservoir, vertical hydraulic fracture propagation path has been ...
Jue Wang, Genbo Peng, Ziyuan Cong, Buqin Hu   +3 more
doaj   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

The brittleness index in hydraulic fracturing [PDF]

, 2015
We present a new definition of a brittleness index which is used as a criterion for candidate selection of rock intervals for hydraulic fracturing. The new index is a combination of material strength parameters and insitu stresses. It was derived from an
Atkinson, C, Papanastsiou, P
core