Technical enhancement amine gas treating and cost reduction by assisting response surface methodology
Available online 25 December 2025
The process of amine sweetening of natural gas is crucial to purify it, meet environmental regulations, and boost its commercial value. This study proposes a novel hybrid optimization framework combining...
Analytical Model for Lateral Peak Soil Resistance based on Pipe-Soil Interaction Full-Scale Test and Numerical Simulation
Available online 25 December 2025
Pipelines, as critical infrastructure for oil and gas transportation, require precise evaluation of peak loads in displacement-prone zones to ensure operational safety. The current design guidelines...
Pore structure-controlled CO2 huff-n-puff efficiency in Jimusar shale oil reservoirs: Insights from classified oil reservoirs
Available online 24 December 2025
CO2 huff-n-puff is a promising enhanced oil recovery technique for shale oil reservoirs, but its efficiency in relation to pore structure across classified oil reservoirs remains unclear. This study...
Evolution mechanism of shale permeability considering competitive adsorption-induced swelling and slippage effect of binary CO2/CH4: Implications for CO2-ESGR
Available online 24 December 2025
During CO2-enhanced shale gas recovery (CO2-ESGR), the competitive adsorption and flow characteristics of binary CO2/CH4 in shale reservoirs significantly influence both CH4 production and CO2 storage....
Quantitative prediction of steam channeling based on steam override in horizontal wells cyclic steam stimulation:Mathematical modeling and experimental validation
Available online 24 December 2025
Cyclic steam stimulation (CSS) is a common method for heavy oil reservoir, but the current research on steam channeling in horizontal wells is limited. This study proposes a novel mathematical model...
A machine learning-driven interpretative framework for reconstructing hydrocarbon evolution in hybrid petroleum systems
Available online 22 December 2025
The genetic identification of hydrocarbons in complex hybrid petroleum systems remains challenging due to overlapping geochemical signatures caused by multi-source inputs and superimposed geological...
A new method for fluid saturation calculation in low resistivity oil reservoirs with nuclear magnetic resonance-constrained triple-water resistivity model
Available online 19 December 2025
To address the evaluation difficulty of hydrocarbon saturation in low resistivity reservoirs, an innovative method for calculating oil saturation is proposed using a nuclear magnetic resonance (NMR)-constrained...
Pore preservation mechanism and conceptual model of fine-grained sedimentary rocks of Qiongzhusi Formation in Deyang–Anyue rift trough, Sichuan Basin
Available online 19 December 2025
To elucidate the role of effective pore preservation in controlling shale gas enrichment and high yield. This study focuses on fine-grained sedimentary shale of the Qiongzhusi Formation in Sichuan basin,...
Deep reparameterization for full waveform inversion: Architecture benchmarking, robust inversion, and multiphysics extension
Available online 19 December 2025
Full waveform inversion (FWI) is a high-resolution subsurface imaging technique, but its effectiveness is limited by challenges such as noise contamination, sparse acquisition, and artifacts from multiparameter...
Multi-task U-net inversion of synthetic look-ahead logging-while-drilling data
Available online 18 December 2025
Electromagnetic look-ahead logging while drilling instruments detect the electrical characteristics of undrilled formations, enabling proactive decision-making. Real-time geological insight ahead of...
Failure mechanism and structure optimization of sand control screen in water-bearing gas well
Available online 18 December 2025
The prospect of natural gas reservoir is broad. As the mining channel, the state of gas well determines the mining efficiency of the whole natural gas reservoir. After long-term mining of gas wells,...
Finite-difference heterogeneous multiscale method for elastic Helmholtz equation in isotropic media
Available online 18 December 2025
The elastic Helmholtz equation is capable of readily simulating attenuation and dispersion behaviors of the elastic wave and performing full-wavefield modeling in wave-equation-based elastic inversions...
Advances in Intelligent Defect Recognition Method for Oil and Gas Pipeline Weld X-Ray Image
Available online 17 December 2025
Long-distance pipelines are essential for transporting oil and gas, with the quality of welds directly affecting their safety and reliability. Weld defects can emerge during the welding process due...
Paleoenvironmental and paleoclimatic evolution of the Piçarras Formation, Santos Basin, Brazil, from cuttings and well logs
Available online 17 December 2025
Reconstructing syn-rift paleoenvironmental systems requires an understanding of the complex interplay among tectonics, climate, and lacustrine sedimentation, which is crucial for petroleum exploration....
Development of mahua oil (Madhuca indica) methyl ester based drilling mud as a sustainable alternative to oil based mud for unconventional reservoirs
Available online 17 December 2025
The exploration of untapped unconventional reservoirs has increased to fulfill the growing global demand for energy. Traditionally, oil-based mud (OBM) is preferred for drilling such formations; however,...
Unveiling the role of Janus nanoparticle shape in trapped oil displacement: A molecular perspective
Available online 17 December 2025
Janus nanoparticles (JNPs) exhibit significant promise for enhancing oil recovery (EOR). However, their large-scale field deployment remains challenging. A key challenge lies in the insufficient understanding...
A novel approach to evaluating remaining oil potential using dynamic connectivity and bivariate mapping in large-scale reservoirs
Available online 16 December 2025
In the development of water flooding reservoirs, enhancing oil recovery often requires implementing measures tailored to the reservoir's specific characteristics. A critical step in this process is...
Unconventional oil production forecasting based on PiAM meta-learning
Available online 16 December 2025
Accurate production forecasting serves as a critical determinant for optimizing extraction strategies, guiding long-term field management in reservoir development. Both conventional methods and deep...
Study on prediction of annular trap pressure in ultra-high temperature and high pressure gas wells
Available online 15 December 2025
Accurate calculation of annular trap pressure in ultra-high-temperature and high-pressure (UHTHP) wells is crucial for ensuring the safety and integrity of tubular systems. Existing annular pressure...
The Impact of Fossil Energy Technological Progress on Sectoral Implied Energy Intensity: Evidence from the U.S. Shale Gas Revolution
Available online 13 December 2025
This paper investigates how sectoral implied energy intensity responds to energy technology progress, using the U.S. shale gas revolution—the most significant energy breakthrough of the 21st century—as...
Diagenesis and implication for the reservoir quality of the tight sandstone reservoir in the depression zone of foreland basin, Upper Triassic Xujiahe Formation, Western Sichuan Foreland Basin, China: Evidence from petrography and geochemistry
Available online 13 December 2025
Tight sandstones are products of complex and various diagenetic events that significantly affect reservoir quality and heterogeneity. In this study, tight sandstones of the Upper Triassic Xu3 Member...
Degradable PAM hydrogel mediated by hydroxy acids for temporary plugging
Available online 11 December 2025
In this study, the degradation time of gel plugs was regulated by introducing hydroxy acids to adjust the crosslink density, effectively addressing the challenge of controllable degradation time in...
Biomass-derived amphiphilic nitrogen-doped carbon dots: Molecular design, interfacial regulation, and enhanced oil recovery performance
Available online 11 December 2025
In response to the overlooked influence of precursor molecular structure on interfacial performance in the application of amphiphilic carbon dots (CDs) for enhanced oil recovery (EOR), this study synthesized...
Review: Research on the Development Trends of Measurement While Drilling (MWD) Technology in Oil and Gas Drilling
Available online 11 December 2025
As one of the pivotal technologies in oil and gas field exploration and development, downhole measurement technology provides a scientific basis for reservoir evaluation, drilling optimization, development...
Three-Dimensional Heat Transfer Model of Oil-Water Two-Phase Stratified Flow
Available online 10 December 2025
Oil-water stratified flow, a fundamental pattern in multiphase pipe flow, is commonly encountered in offshore petroleum production and transportation. Although hydraulic characteristics of this flow...