Accurate reconstruction method of virtual shot records in passive source time-lapse monitoring based on SBA network
September 2025
Passive source imaging can reconstruct body wave reflections similar to those of active sources through seismic interferometry (SI). It has become a low-cost, environmentally friendly alternative to...
OFC
September 2025
High-pressure driven lubricant infiltrated porous diamond for the preparation of self-lubricating diamond tools
September 2025
With the global oil and gas industry increasingly targeting ultra-deep well development, the demand for wear resistance in polycrystalline diamond compact (PDC) bits is increasing. However, further...
Multi-attribute risk assessment on helium investment environment in host countries
September 2025
Helium is a critical raw material, but its distribution is extremely uneven. To better mitigate trade risks and get a steady and safe supply of helium, it is of the upmost importance to assess the risk...
Experimental study of a circulation agent dynamic plugging for multi-scale natural fractures
September 2025
Lost circulation critically jeopardizes drilling safety and efficiency, and remains an unresolved challenge in oil and gas engineering. In this paper, by utilizing the self-developed dynamic plugging...
Deep feature learning for anomaly detection in gas well deliquification using plunger lift: A novel CNN-based approach
September 2025
Timely anomaly detection is critical for optimizing gas production in plunger lift systems, where equipment failures and operational issues can cause significant disruptions. This paper introduces a...
Method for determining the installation interval of vortexing cuttings removal tool and its mechanism
September 2025
Recent advancements in drilling technology have driven substantial progress in cuttings removal tool development, particularly for addressing borehole cleaning challenges in highly deviated directional...
Seismic pore-type characterization in tight carbonate reservoirs: A case study of the fourth member of Ordovician Majiagou Formation in Ordos Basin, China
September 2025
Carbonate reservoirs are known for their complex pore structures, which lead to variable elastic behaviors and seismic responses. These variations pose significant challenges for seismic interpretation...
Coaly source rock evaluation using well logs: The Jurassic Kezilenuer Formation in Kuqa Depression, Tarim Basin, China
September 2025
Coaly source rocks have attracted considerable attention for their significant hydrocarbon generation potential in recent years. However, limited study is performed on utilizing geochemical data and...
Lacustrine organic carbon sequestration driven by volcanism: A case study of the third submember of the Chang 7 Member of the Yanchang Formation in the Ordos Basin
September 2025
The Ordos Basin was recognized as the earliest terrestrial aquatic ecosystem to recover following Permian–Triassic mass extinction, significantly contributing to organic carbon sequestration during...
Influence of electric and flow field characteristics on the cleaning of fillers for FCCS electrostatic separation
September 2025
Filler cleaning is a challenge that affects the efficient separation of FCCS particles by electrostatic methods and limits the utilization of the oil slurry. Two filler cleaning methods are proposed...
Experimental study of dehydration performance of re-crosslinkable preformed particle gel during extruding through an open fracture
September 2025
Re-crosslinkable preformed particle gel (RPPG) has been considered to be one of the most promising gels for dealing with fracture and void space conduit (VSC) conformance problems. However, the dehydration...
Integrated optimization of reservoir production and layer configurations using relational and regression machine learning models
September 2025
This study introduces a novel approach to addressing the challenges of high-dimensional variables and strong nonlinearity in reservoir production and layer configuration optimization. For the first...
Bayesian AVO inversion of fluid and anisotropy parameters in VTI media using IADR-Gibbs algorithm
September 2025
Fluid identification and anisotropic parameters characterization are crucial for shale reservoir exploration and development. However, the anisotropic reflection coefficient equation, based on the transverse...
TOC
September 2025
Unraveling the hydrodynamic effects on calcium carbonate scaling behavior under high-temperature and high-pressure CO2 degassing
Available online 30 September 2025
Carbonate scaling in the Brazilian pre-salt oil production systems represents a challenging flow assurance issue driven by the release of CO2 caused by head loss. This reduction in pressure causes CO2...
Experimental investigation into the fracture propagation behavior of horizontal well multi-stage and multi-cluster fracturing within the roof of crushed soft coal seams
Available online 29 September 2025
The effectiveness of horizontal well multi-stage and multi-cluster fracturing in the fractured soft coal seam roof for coalbed methane (CBM) extraction has been demonstrated. This study focuses on the...
Characterization of multiple fractured layers using a rock-physics-based shear wave splitting analysis: application to four-component VSP
Available online 29 September 2025
Shear wave splitting (SWS) analysis has been widely employed for fracture characterization in both global seismology and seismic exploration. Two key SWS attributes—fast shear wave polarization and...
A new approach to remediation of crude oil with promising green composites: biosurfactant-producing Bacillus sp. consortium entrapped in chitosan, chitosan/glutaraldehyde and chitosan/Na-bentonite
Available online 29 September 2025
This study compares the crude oil removal efficiency of free and biosurfactant-producing bacterial consortia (Bacillus tequilensis NR_104919 and Bacillus axarquiensis NR_115929) entrapped in chitosan...
Optimal Fit Clearance of Control Valve Considering Energy Consumption Based on Loosely Coupled Fluid-Solid Interaction
Available online 27 September 2025
The wireless intelligent water distributor is an emerging technology increasingly used in oil fields to boost oil recovery. Although the system has many advantages, the high energy consumption of its...
Study on flow capacity and percolation behavior of hydraulically induced bedding fracture by different fluids in full-diameter shale cores
Available online 25 September 2025
Chinaʼs continental shale exhibits favorable geological characteristics and substantial resource potential, yet oil recovery for natural energy extraction remains critically low. Investigating the mechanisms...
Timing of deep oil accumulations in the western part of the northern Tarim Basin: records from fluid inclusions and carbonate U-Pb dating
Available online 24 September 2025
Liquid oils in deeply buried reservoirs are usually subjected to thermal cracking by the prolonged time-temperature effect during burial. However, large quantity liquid oils are being produced from...
Multivariate natural gas price forecasting model with feature selection, machine learning and chernobyl disaster optimizer
Available online 24 September 2025
The significance of accurately forecasting natural gas prices is far-reaching and significant, not only for the stable operation of the energy market, but also as a key element in promoting sustainable...
An intelligent micro-nano capsule green hydrogel decorated with carbon quantum dots with delayed crosslinking characteristics for enhanced oil recovery in harsh reservoir
Available online 23 September 2025
Hydrogels are widely used in reservoir flow control to enhanced oil recovery. However, challenges such as environmental contamination from conventional crosslinkers, poor solubility of crosslinking...
Mechanism-guided data-driven model for optimized completion design
Available online 22 September 2025
Effective completion design in hydraulic fracturing (HF) is crucial for optimizing production in unconventional reservoirs. Traditional geometric designs often fail to account for geological and engineering...