Oil flow impact characteristics of internal floating roof tanks during floating roof landing and oil receiving processes
March 2026
To maintain the integrity of internal floating roof tanks, curb environmental pollution and guarantee the safety of tank farms, it is important to determine the oil flow features that impact the floating...
Estimation of fluid saturation and pressure distribution throughout a reservoir using machine learning techniques
March 2026
Water saturation is one of the most critical yet often underappreciated petrophysical parameters in reservoir characterization. A wide range of petrophysical and reservoir engineering computations that...
Enhancing oil recovery of gas flooding by regulating rock surface wettability
March 2026
Rock surface wettability plays a crucial role in gas flooding for oil recovery. Natural rock surfaces are usually oleophilic, resulting in high flooding resistance and low recovery in gas flooding....
Carbon capture and storage: An evidence-based review of its limitations and missed promises
March 2026
Despite over $40 billion invested globally, Carbon Capture and Storage (CCS) captures and stores less than 0.1% of annual global CO2 emissions, raising serious questions about its efficacy as a climate...
Experimental Investigation on the Impact of Acoustic Vibrations on Rock Permeability While Filtration of Crude Petroleum with Wax Particles
Available online 26 March 2026
The work focuses on studying the effect of acoustic vibrations on the permeability of rocks during filtration of crude petroleum with wax particles blocking the rock pore space. Field data demonstrate...
Geochemical Characterization and Proxy Development for Hydrocarbon Potential Assessment of Shale in Lower Cretaceous Yingcheng Formation of Songliao Basin, China: A Principal Component Analysis Approach
Available online 25 March 2026
The Southern Shuangcheng Depression, located in the northern part of the Songliao Basin in northeast China, contains organic-rich lacustrine shale intervals within the Lower Cretaceous Yingcheng Formation...
CT-Based Investigation and Numerical Modeling of Wettability Alteration During Spontaneous Imbibition
Available online 25 March 2026
This study explores the effect of brine salinity on spontaneous imbibition (SI) in oil-wet carbonate rocks, with a particular focus on the enhancement of oil recovery through wettability alteration....
A new method for calculating the residual oil saturation in the fracturing sections of horizontal wells after volumetric fracturing: A case study of tight conglomerate oil reservoirs in the Mahu Sag, Xinjiang
Available online 23 March 2026
Horizontal well volumetric fracturing technology is typically used to increase oil and gas production from a single well and the ultimate recovery rate of a reservoir by creating a network of artificial...
Lithology identification from logging data considering machine learning models based on different hyperparameter optimization algorithms
Available online 18 March 2026
Using logging response data to establish an efficient and high-precision lithology identification machine-learning model is significant for determining reservoir properties and oil and gas characteristics,...
Assessment of the rheological properties of a novel drilling fluid based on babassu esters for oil well applications
Available online 4 March 2026
Drilling fluids are essential in oil exploration, balancing technical performance and environmental safety. In line with Sustainable Development Goal 12 (responsible consumption and production), this...
Experimental analysis of synthetic oil-based mud enhanced with zinc oxide nanoparticles: Comparing rheological models
Available online 18 February 2026
Rheological modeling is crucial for predicting the performance of drilling fluids under diverse operational conditions. While numerous studies have explored the influence of zinc oxide (ZnO) nanoparticles...
Corrosion inhibitors in drilling mud: Advances, challenges, and future Directions
Available online 16 February 2026
Corrosion remains a persistent challenge in drilling operations, particularly under high-pressure, high-temperature (HPHT) conditions, resulting in economic losses and safety risks. While conventional...
A mineralogical synergy approach to optimizing oil-based drilling fluids under high-pressure and high-temperature conditions
Available online 9 February 2026
High-pressure and high-temperature (HPHT) drilling environments often compromise the stability, rheology, and filtration performance of oil-based drilling fluids (OBDFs). To address these challenges,...
Fractal heterogeneity characteristics and influenced factors of lacustrine shale pore structure based on N2 adsorption and mercury injection in the Paleogene Shahejie Formation, Bohai Bay Basin, China
Available online 7 February 2026
To accurately characterize the fractal heterogeneity of the pore system and its controlling factors in organic-rich lacustrine shale samples from the Paleogene Shahejie Formation, a comprehensive approach...
Economic and environmental impact assessment of carbon storage in Malaysia
Available online 7 February 2026
The global carbon emissions resulting from the combustion of fossil fuels have had a negative impact on the environment. This research presents an in-depth analysis of the economic and environmental...
A unified rock physics model for carbonate reservoir characterization: Transport and elastic properties
Available online 6 February 2026
Rock physics models provide an understanding of the complex interrelationships among physical properties, mineral composition, fluid type, and microstructural characteristics of rocks. While these models...
Theoretical and experimental determination of the preload as a nonlinear function of circumferential displacement for a precise sucker-rod makeup for the use of fatigue tests
Available online 5 February 2026
Circumferential displacement (CD) based sucker-rod makeup is more reliable than the makeup using torque as there is an explicit and strict mechanical relation between preload and CD. In this study,...
Numerical investigation of casing deformation patterns in shale gas wells under different fault slip conditions
Available online 4 February 2026
Casing shear deformation caused by multistage fracturing has severely constrained the development of deep shale gas resources in the Luzhou Block of southern Sichuan. To accurately distinguish the differences...
The impact of distinct rolling window sizes in automated cement evaluation through well-logging and machine learning methods
Available online 3 February 2026
Cementing operations in oil and gas (O&G) wells are critical procedures to guarantee zonal isolation, mitigate fluid migration, and maintain wellbore integrity. Traditionally, assessing cement sheath...
Fluid flow mechanisms in tight gas reservoirs: A case study of Xujiahe formation in the central Sichuan basin
Available online 2 February 2026
Tight sandstone gas reservoirs exhibit low gas abundance and extensive gas-bearing lithology, presenting promising prospects for future exploration and development. However, their exploitation in the...
Drilling wellhead structure's fire resistance evaluation with gas well blowout fires
Available online 31 January 2026
To address the absence of fire resistance evaluation methods for drilling wellhead structures under gas well blowout fires, this study firstly conducted experiments to investigate the mechanical properties...
Application of random forest model optimized with genetic algorithm for determination of minimum miscibility pressure in CO2 flooding
Available online 30 January 2026
CO2 flooding is an efficient technique for enhancing oil recovery and carbon sequestration, where accurate estimation of the minimum miscibility pressure (MMP) is crucial. Conventional experiment and...
A technical review of in situ conversion technologies for oil shale
Available online 29 January 2026
The global depletion of conventional oil and gas resources has led to the exploration of alternative energy resources. Among these resources, oil shale is a fine-grained sedimentary rock with a large...
A new model of predicting the optimal mud density for maximizing the open-hole extension capacity in offshore extended-reach horizontal well drilling
Available online 29 January 2026
The pressure fluctuation caused by the axial movement of the string easily causes the bottomhole pressure to exceed the safe pressure window, which seriously restricts the horizontal open-hole extension...
Dynamic loads on energy pipelines: Origins, mitigation strategies, and future research directions
Available online 29 January 2026
Pipelines are an indispensable part of the global infrastructure for energy transportation, and their integrity poses a significant risk as the dynamic loads generated throughout their life cycle might...