Results 41 to 50 of about 1,099 (184)

Mitigating Surface Tension Effects in Multi‐Coalbed Methane Reservoirs: Case Study of Liupanshui Field

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Water locking effect caused by surface tension severely restricts coalbed methane (CBM) productivity in multilayer reservoirs. The Songhe demonstration area features main target coal seams with overpressure, high gas content, and high gas saturation, presenting favorable CBM development conditions.
Zhu Liu, Yu Xiong, Shiliang Zhu, Zong Ren, Xiao Wang, Xixi Hao, Yun Feng, Mahmoud Ahmed   +7 more
wiley   +1 more source

Simulation of proppant transport in fracture with different combinations of particle size

Youqicang pingjia yu kaifa, 2019
The study of proppant transport in fractures is of great significance for guiding fracturing design and evaluation. The current researches of proppant placement rules mainly focus on displacement, proppant type, fracturing fluid viscosity, etc.
Kuangsheng ZHANG, Tongwu ZHANG, Shunlin WU, Nianyin LI, Siyuan HE, Jun LI   +5 more
doaj  

Experimental Study on Multiscale Evolution Mechanism of Coalbed Reservoir Properties in “Three‐Low” CBM Reservoirs Modified by Chlorine Dioxide

Geofluids, Volume 2026, Issue 1, 2026.
Aiming at the “three‐low” challenges (low permeability, low gas saturation, and low critical desorption‐to‐storage ratio [CDSR]) of Chinese coalbed methane (CBM) reservoir materials, this study adopted chlorine dioxide (ClO2) chemical modification on long‐flame, coking, and anthracite coal materials.
Chaowen Hu, Ruifeng Huang, Huifeng Wang, Bo Pan, Xiaojie Yang, Yichao Li, Fulong Sun, Umberta Tinivella   +7 more
wiley   +1 more source

DEM-CFD Modeling of Proppant Pillar Deformation and Stability during the Fracturing Fluid Flowback

Geofluids, 2018
In this study, proppant pillar deformation and stability during the fracturing fluid flowback of channel fracturing was simulated with DEM-CFD- (discrete element method-computational fluid dynamics-) coupling method.
Haiyan Zhu, Jiadong Shen, Fengshou Zhang, Bo Huang, Liaoyuan Zhang, Wei Huang, John D. McLennan   +6 more
doaj   +1 more source

Hydraulic‐Mechanical Coupling‐Driven In Situ Stress Field Evolution in Injection‐Production Well Patterns With Artificial Fractures

Geofluids, Volume 2026, Issue 1, 2026.
Based on the theory of porous media elasticity and the mechanisms of hydraulic‐mechanical coupling, a fully coupled mathematical model for porous media deformation and fluid flow was established, incorporating a square inverted nine‐spot well pattern with artificial fractures. The finite element method was employed for numerical solution, and the model′
Changkun Cheng, Shiduo Liu, Zhicheng Wang, Qian Xiao, Huan Liu, Ying Fu, Yuhang Zhang, Yan Deng, Zhiqiang Fan   +8 more
wiley   +1 more source

Hydraulic fracturing proppants [PDF]

Cerâmica, 2018
Abstract Hydrocarbon reservoirs can be classified as unconventional or conventional depending on the oil and gas extraction difficulty, such as the need for high-cost technology and techniques. The hydrocarbon extraction from bituminous shale, commonly known as shale gas/oil, is performed by using the hydraulic fracturing technique in unconventional ...
Campos, V. P. P. de, Sansone, E. C., Silva, G. F. B. L. e   +2 more
openaire   +4 more sources

Experimental Investigation on Proppant Transport Behavior in Hydraulic Fractures of Tight Oil and Gas Reservoir

Geofluids, 2022
Proppant concentration and fracture surface morphology are two significant fractures that can affect proppant transport and deposition behavior especially in tight and oil and gas reservoirs.
Guoliang Liu, Shuang Chen, Hongxing Xu, Fujian Zhou, Hu Sun, Hui Li, Zuwen Wang, Xianwen Li, Kaoping Song, Zhenhua Rui, Ben Li   +10 more
doaj   +1 more source

From Empirical Models to Physics‐Informed Neural Networks: The Evolution of Oil Production Forecasting

Journal of GeoEnergy, Volume 2026, Issue 1, 2026.
Production forecasting for oil and gas wells is a decisive element of field‐development planning because it directly guides recovery strategy design, production optimisation and risk management. Conventional methods, including empirical decline‐curve analysis (DCA) and full‐physics numerical simulation, are limited either by their inability to capture ...
Shitan Yin, Erlong Yang, Xianjun Wang, Chi Dong, Mehdi Ostadhassan   +4 more
wiley   +1 more source

Evaluating the stability and volumetric flowback rate of proppant packs in hydraulic fractures using the lattice Boltzmann-discrete element coupling method

Journal of Rock Mechanics and Geotechnical Engineering
The stability and mobility of proppant packs in hydraulic fractures during hydrocarbon production are numerically investigated by the lattice Boltzmann-discrete element coupling method (LB-DEM). This study starts with a preliminary proppant settling test,
Duo Wang, Sanbai Li, Rui Wang, Binhui Li, Zhejun Pan   +4 more
doaj   +1 more source

An Approach to Sustainable Hydrogen Generation From Stimulated Iron‐Rich Ultramafic Rock

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Iron‐rich rocks undergoing oxidation in the presence of water are promising sources of geologic hydrogen (H2). Yet, such reactions are often considered self‐limiting due to passivation and reduced permeability if volume expansion occurs. This study investigates hydrogen generation during a flow‐through experiment on fractured iron‐rich cores ...
Henry Galvis Silva, Abubakar Isah, Ainash Shabdirova, Fabian Carrascal, Esuru Rita Okoroafor   +4 more
wiley   +1 more source