Fast beam migration capable of dealing with intersecting events
Available online 28 October 2025
Fast beam migration (FBM), characterized by its super-high efficiency in velocity model building, consists of three main steps: beam forming, beam propagation, and image forming. The super-high efficiency...
Fast algorithm of borehole correction library construction for multi-component array induction tool in deviated boreholes
Available online 28 October 2025
The construction of a borehole correction library for the multi-component array induction tool in deviated boreholes involves extensive 3D forward modeling and typically requires significant computational...
Grain Boundary Strength in Methane Hydrates
Available online 27 October 2025
Grain boundaries (GBs) in natural gas hydrates (NGHs) are ubiquitous crystal imperfection that undermine the stability of NGHs. In this study, we report the diverse cage structures and mechanical properties...
Mechanism and influencing factors of electroosmosis-driven residual water drainage in soft coal seams during coalbed methane recovery
Available online 25 October 2025
Soft coal seams with low porosity are prone to water-blocking during mid to late stages of coalbed methane production, reducing gas recovery. To address this, an electroosmosis-driven drainage strategy...
Investigating the effect of the shale bedding structure on hydraulic fracture propagation behavior on the basis of a coupled thermal–hydraulic–mechanical numerical model
Available online 25 October 2025
The interaction process among hydraulic fractures and natural fractures, bedding planes, and other discontinuities during shale fracturing determines the complexity of the fracture network that is formed....
Electrorheological effect enhancement of waxy crude oil with graphene nanoparticles and its mechanism
Available online 24 October 2025
Electric treatment is a promising method to improve the cold flowability of waxy crude oil by taking advantage of the electrorheological (ER) effect of the crude oil. However, the efficacy of viscosity...
Hydrodynamics characteristics of rough-walled self-propping shale fractures: from microscale morphology to macroscale hydraulic response
Available online 24 October 2025
Self-propping fractures formed during hydraulic fracturing in shale reservoirs constitute a critical component of the hydraulic fractures, with surface roughness serving as a pivotal factor governing...
Formulation, stability, and synergistic characteristics of diesel-in-water pickering emulsions stabilized by titanium carbide (Ti3C2Tx) MXene and Tween 40
Available online 24 October 2025
Enhanced oil recovery (EOR) operations increasingly depend on emulsion-based formulations that exhibit long-term stability under reservoir conditions while minimizing surfactant dosage. In this context,...
Micro-nanoscale pore structure characteristics and enrichment mechanisms of shale oil in mixed sedimentary reservoirs of the Jimusar Sag, Junggar Basin
Available online 24 October 2025
The successful development of shale oil in the United States has completely changed the global energy landscape. In recent years, shale oil in the Junggar Basin in China has attracted widespread attention....
New injection method using composite gel system and gel breaker to improve sweep efficiency and mitigate formation damage
Available online 22 October 2025
Polymer gels can cause damage to lowly to moderately permeable formations during both oilfield applications and laboratory evaluations of conformance treatment. To enhance reservoir sweep efficiency...
Production performance of a post-fracturing elastoplastic model for deep shale gas reservoirs
Available online 22 October 2025
Deep shale gas reservoirs are characterized by high temperature, high pressure, and ultra-low permeability, making them highly susceptible to plastic deformation during hydraulic fracturing. In such...
Forecasting carbon price using a hybrid framework based on Bayesian optimization algorithm
Available online 21 October 2025
With the European Union (EU) introducing the Carbon Border Adjustment Mechanism (CBAM), accurately forecasting EU carbon price is crucial for exporters to estimate export costs, plan low-carbon strategies,...
Permeability estimation using rock physics modeling and variational Bayes inversion
Available online 18 October 2025
Permeability estimation is pivotal in reservoir characterization; however, prevailing methods lack a standardized approach. Traditionally reliant on core samples, permeability assessment encounters...
Geochemical characteristics and sources of natural gas in the Upper Paleozoic limestone strata, Ordos Basin
Available online 17 October 2025
The discovery of high-yield industrial gas flows in the limestone layer of the Permian Taiyuan Formation in the Ordos Basin highlights promising prospects for natural gas exploration and has positioned...
Optimization and application of KCl polymer drilling fluid balancing wellbore stability and logging response accuracy
Available online 17 October 2025
In Dagang Oilfield in China, the utilization of the KCl polymer water-based drilling fluid (WBDF) in mid-deep exploration/appraisal wells presents a challenge in simultaneously optimizing resistivity...
Changes in the effective absolute permeability of hydrate-bearing sands during isotropic loading and unloading
Available online 16 October 2025
The effective stress of marine sediments frequently shifts owing to natural or anthropogenic factors, and a broad spectrum of processes fundamentally require accounting for sediment responses to such...
Biomimetic inspired superhydrophobic nanofluids: enhancing wellbore stability and reservoir protection in shale drilling
Available online 15 October 2025
Shale oil and gas, as typical unconventional resources, have gradually altered the global energy supply and demand landscape, attracting significant attention over recent decades. However, challenges...
Optimization of rate of penetration through improved bit durability and extended directional nozzle
Available online 15 October 2025
The enhanced drilling parameters and custom-designed polycrystalline diamond compact (PDC) bits have greatly improved both rate of penetration (ROP) and footage. Then how to further improve the bit’s...
Development and feasibility test of a fan-shaped hydrate simulator with a radius of 3 m
Available online 13 October 2025
Large-scale physical simulation is essential for advancing our understanding of natural gas hydrates exploitation mechanism. However, cylinder-shaped simulators often face challenges in balancing large...
Azimuthal amplitude inversion in stress-induced anisotropic media based on stress-dependence of microcrack compliance
Available online 13 October 2025
The elastic properties of subsurface rocks are almost always stress-dependent, which is usually attributed to stress-sensitive microcracks. Incorporating the effect of stress on microcrack compliance,...
Irregularly seismic data interpolation based on deep learning with integrated channel-spatial attention mechanism
Available online 11 October 2025
To address the challenges of irregular sampling and insufficient spatial sampling in field seismic data, this study proposed a deep learning-based interpolation method incorporating dual channel spatial...
The heat-fluid-solid coupling erosion mechanism for the optimal spray distance and jet angle in high-pressure water jets
Available online 10 October 2025
Focusing on the conversion of pressure energy and internal energy under viscous dissipation, a heat-fluid-solid coupling method is established to study the flow and stress fields of 100 MPa submerged...
Study of the effect of wax on carbon dioxide hydrate formation in oil–water mixture with high water content
Available online 10 October 2025
The impact of wax on the formation of hydrates has not yet been established due to the inherent complexity of oil–water mixtures. The O/W system has not been as extensively studied. In light of the...
Competition between viscous and capillary forces triggers diversity of fluid distribution and imbibition modes
Available online 6 October 2025
Spontaneous imbibition is the process in which the wetting phase displaces a non-wetting phase under the action of capillary forces. However, variations in interfacial properties, imbibition directions,...
Processing capacity allocation of multiple production system for gas field multi-stage development
Available online 4 October 2025
The multi-stage development strategy is often adopted in the gas field. However, when the productivity decline occurs, many large processing stations will be severely idle and underutilized, significantly...