Large-scale visualized physical simulation of the occurrence and flow of condensate oil in fracture-vuggy condensate gas reservoir
September 2026
The Tazhong No. 1 condensate gas reservoir in Tarim Basin shows complex storage spaces and strong heterogeneity. To intuitively assess the production performance characteristics of the condensate gas...
A technical review of in situ conversion technologies for oil shale
September 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...
Full-field petroleum production forecasting: Is deep learning all you need?
September 2026
We investigate full-field petroleum production forecasting using machine learning. A data-driven proxy model that predicts field-scale production under various operational scenarios is proposed. It...
Effects of TPH contamination on soil and rice growth: Assessing the efficacy of sodium persulfate as a remediation agent
September 2026
Soil contamination by total petroleum hydrocarbons (TPH) poses a major risk to soil health and crop productivity. This study aims to investigate the effects of TPH on soil properties and rice growth...
Preparation and mechanistic analysis of high-selectivity water control systems
September 2026
This paper presents a highly selective water control system designed to address declining oil production in offshore wells caused by rising water cuts while overcoming the poor selectivity of current...
Fluid flow mechanisms in tight gas reservoirs: A case study of Xujiahe formation in the central Sichuan basin
September 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...
Proppant transportation in vertical fractures with controlled roughness in different positions
September 2026
Effective proppant placement is essential for increasing the production of unconventional oil/gas reservoirs. It can substantially affect the fracture roughness. This paper presents a laboratory fracture...
Data-driven real-time prediction of cutting's transport index in directional wellbores
September 2026
The drilling of non-vertical wellbores requires effective real-time monitoring techniques to improve drilling efficiency. This study innovatively develops nine robust hybrid machine learning (HML) models...
Drilling wellhead structure's fire resistance evaluation with gas well blowout fires
September 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...
A new model of predicting the optimal mud density for maximizing the open-hole extension capacity in offshore extended-reach horizontal well drilling
September 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...
Corrosion inhibitors in drilling mud: Advances, challenges, and future Directions
September 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...
Influence of dually modified tapioca starch on drilling fluid filtration and filter cake development on rock samples
September 2026
Degradation of biomaterials under high temperatures and saline conditions leads to deterioration and loss of performance in deep well drilling applications. This research focuses on examining the impact...
Inversion method for multi-section friction factors in horizontal wells based on Fisher optimal segmentation and SSA
September 2026
The friction factor plays a critical role in drag and torque calculations. In the drag and torque model, the friction factor is typically treated as an average value, or the wellbore is roughly divided...
Advanced machine learning approaches for optimizing waterflooding: A focus on injector-producer dynamics
September 2026
Waterflooding persists as the primary secondary oil recovery method, although its efficiency evaluation is often hindered by limitations from reservoir heterogeneities alongside non-uniform sweep efficiency...
Influence of fracturing fluid rheology on proppant transport and elbow erosion: A comparative CFD-DEM study
September 2026
To enable the precise prediction and control of erosion in hydraulic fracturing pipelines, this study employs a CFD-DEM method coupled with a wear model to quantitatively analyze the influence of shear-thinning...
Dynamic loads on energy pipelines: Origins, mitigation strategies, and future research directions
September 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...
Performance evaluation of hybrid polymer-phosphonate scale inhibitors in oilfield water flooding operations
September 2026
The formation of inorganic scales such as calcium sulfate and barium sulfate during water injection in oilfields can severely impair productivity by clogging pores and reducing rock permeability. This...
Application of random forest model optimized with genetic algorithm for determination of minimum miscibility pressure in CO2 flooding
September 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...
Economic and environmental impact assessment of carbon storage in Malaysia
September 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...
Laboratory physical simulation study on water flooding EOR mechanisms and patterns in FM fault- fractured-vuggy reservoirs
September 2026
The FM fault-fractured-vuggy volatile oil reservoir exhibits significant heterogeneity and rapid production decline. Furthermore, there are notable differences in the effects of depletion development,...
Study on the phase behavior and mass transfer laws of CO2-shale oil in shale oil reservoirs
September 2026
Injecting CO2 into shale oil reservoirs has the dual purpose of enhancing oil recovery rate and geological storage of CO2. The phase behavior and mass transfer laws of the CO2-shale oil are crucial...
Dominant lithofacies and hydrocarbon enrichment characteristics of lacustrine shale reservoirs: A case study of the Qingshankou Formation shale in the Southern Songliao Basin
September 2026
With the growing challenges in conventional hydrocarbon exploration, shale oil has emerged as a critical target for future energy supply. The Qingshankou Formation (K2qn) in the southern Songliao Basin...
The impact of grid refinement, foam model, and peaceman model on gas and liquid injectivities during SAG foam EOR: An FFT benchmarking study
September 2026
Surfactant-Alternating-Gas (SAG) utilizes foam to reduce gas mobility and improve reservoir sweep efficiency in gas-injection enhanced oil recovery and carbon capture and storage. Although SAG is known...
Design and analysis of a micro hydraulic reamer-while-drilling tool
September 2026
Casing window sidetracking is a key technique for tapping remaining oil in small-scale enriched zones, such as minor anticlines and thin interbeds. While reaming-while-drilling (RWD) technology can...
A new prediction model of bottomhole weight on bit in offshore extended-reach drilling based on the integration of intelligent algorithms and the physical models of rate of penetration
September 2026
Offshore extended-reach drilling is widely employed for the efficient development of deepwater hydrocarbon fields. However, the complex subsea formation environment and downhole frictional losses lead...
