Results 51 to 60 of about 6,533 (232)

Influence of rock mechanics characteristics on fracturing and development strategies in the Zhengzhuang Block

Meitan kexue jishu
The rock mechanical parameters of coal reservoirs play an important role in controlling the formation and evolution of natural fractures and the propagation of artificial fractures, and are the key factors affecting the fracturing transformation of coal ...
Cong ZHANG, Liping ZHAO, Ruiqiang YANG, Qi WANG, Guangjie SANG, Kexin LI, Yuting WANG, Huimin JIA, Jun LI   +8 more
doaj   +1 more source

Systems‐Level Optimization of Hybrid Produced Water Treatment Systems for Sustainable Oil and Gas Production: A Review of Current Technologies

Global Challenges, Volume 10, Issue 2, February 2026.
ABSTRACT Produced water (PW) is the largest and most complex waste stream generated during oil and gas production, posing significant environmental, operational, and regulatory challenges due to its high salinity, dispersed hydrocarbons, toxic organics, heavy metals, and naturally occurring radioactive materials. Although numerous studies have reviewed
Omogbolade L. Adepitan, Oluwaseyi O. Alabi, Charles Deigh, Oluwatoyin Joseph Gbadeyan   +3 more
wiley   +1 more source

Nanoconfined Methane Storage Mechanism in Deep Coal Seams: A Wettability-Coupled Simplified Local Density Model

Nanomaterials
In deep coal seams, where nanopores (~2 nm) dominate, wettability effects, which govern molecule–wall interaction strength, critically control the methane storage, yet remain poorly understood.
Liang Ji, Xianyue Xiong, Zhihong Nie, Zhengchao Zhang, Ming Yuan, Yang Zhang, Chengchao Xu, Xiaolong Zhao, Hongtao Yang, Chengming Zhao, Zheng Sun   +10 more
doaj   +1 more source

Rational Design of a Multifunctional MOFs for Alkane‐Selective Gas Separation

Advanced Science, Volume 13, Issue 2, 9 January 2026.
The design of a dimethyl‐functionalized adsorbent provides insight into the simultaneous separation of CH4/N2, C2H6/C2H4, and C3H8/C3H6 mixtures. Abstract Efficient separation of light hydrocarbons—including the removal of CH4 from N2 and the purification of olefins such as C2H4 and C3H6 from their corresponding alkanes (C2H6 and C3H8)—is critical in ...
Li Wang, Zhaozhuang Liu, Yating Wang, Jiaqi Liu, Jinping Li, Jiangfeng Yang   +5 more
wiley   +1 more source

Methane emission from U.S. coal mines : a survey [PDF]

This survey was conducted to determine the magnitude of the methane emission and control problem in U.S. bituminous coal mines. The resultant data indicate that the emission rate for any given coalbed depends primarily on the coal production rate and on ...

core   +3 more sources

Numerical Investigation of the Influence of Wave Pressure Amplitude and Frequency on Fracture Morphology Induced by Supercritical CO2 Fracturing

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
The mechanisms whereby various parameters influence the evolution of the induced fracture geometry during pulse supercritical CO2 fracturing (PSCF) were explored through numerical simulations. A novel quantitative index of the induced fractures, termed the “matching degree” (MD), was proposed, and a theoretical framework based on the rock‐bonded ...
Peihuo Peng, Yong Pan
wiley   +1 more source

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

Numerical simulation of hydraulic fracturing coalbed methane reservoir [PDF]

, 2014
Some coal seam is well known for its three low characteristics: low permeability, low reservoir pressure and low gas saturation. Thus stimulation measures must be taken during coalbed methane development stage to enhance its recovery.
Zhang, Jingchen
core   +1 more source

Physical Simulation and Law of Interlayer Interference in Multi-Layer Combined Production of Gas Reservoirs with Pressure Difference

Energies
To address interlayer interference during multi-layer commingled production in gas reservoirs with pressure differences, this study investigates the low-permeability gas reservoir in the central Linxing area of the Ordos Basin.
Yu Su, Bing Zhang, Honggang Mi, Chao Wei, Bo Wang, Le Sun, Tianyu Fu, Chen Wang   +7 more
doaj   +1 more source

Gas Diffusion Coefficient in Tight Sandstones: An Experimental Approach Under Various Controlling Factors

Geofluids, Volume 2026, Issue 1, 2026.
This study investigates the natural gas diffusion coefficients in tight sandstones, emphasizing the Sulige area′s geological conditions. Through experimental measurements and the simulation of natural gas diffusion processes, we explore the impact of various geological factors—including temperature, pressure, porosity, permeability, pore throat radius,
Zhongying Zhao, Shan Lu, Lijun Zhang, Shouxu Pan, Tao Chen   +4 more
wiley   +1 more source