Integrated porosity estimation with uncertainty propagation for reservoir simulation models
Available online 5 September 2026
Porosity is a crucial parameter in assessing reservoir performance, as its accurate estimation in simulation models impacts reserves evaluation, production forecasting, and field development. The inherent...
Differential Accumulation Patterns of Mesozoic Hydrocarbon Reservoirs in the Northern Monocline Belt of the Kuqa Depression (Tarim Basin, NW China): Constraints from Basin Modeling and PVTx Simulation
Available online 3 September 2026
The northern monocline belt of the Kuqa Depression, Tarim Basin, is characterized by structural complexity and limited exploration, despite its considerable hydrocarbon potential. This study subdivides...
CO2 enhanced shale oil and carbon sequestration in kerogen nanopores: A molecular dynamics study
August 2026
Carbon dioxide (CO2) injection is a promising strategy for enhancing shale oil recovery while enabling geological carbon storage. In this study, non-equilibrium molecular dynamics (NEMD) simulations...
Research on the influencing factors and prediction model of sulfur particle aggregation diameter in high-sulfur gas wells
August 2026
The size of sulfur particle aggregates directly influences the critical sulfur particle carrying velocity, flow resistance, sulfur blockage thickness, corrosion rate, and scaling rate in high-sulfur...
Permeability prediction of tight sandstone reservoirs under few-shot and imbalanced conditions: A generative data enhancement and bi-directional attention fusion framework
August 2026
Permeability prediction in tight sandstone reservoirs is strongly influenced by diagenesis, multiscale pore structures and multiphase flow effects, resulting in pronounced spatial heterogeneity. Traditional...
Numerical study on formation blockage and back-pumping during geothermal water reinjection in weakly consolidated heterogeneous reservoirs using a novel mechanism model
August 2026
For the utilization of low-medium temperature geothermal water, the well injection capacity for tail water disposal is often reduced due to the migration of self-generated particles and the invasion...
Microscopic heterogeneity characteristics and movable oil characterization of ultra-deep shale oil in the Mahu Sag
August 2026
The shale oil in the Fengcheng Formation of the Mahu Sag has become an extremely critical target for large-scale reserve growth in the Junggar Basin. Characterized by great burial depth, complex geology,...
Gas condensate recovery in carbonate rocks through wettability alteration: Characterization and optimization by response surface methodology (RSM)
August 2026
Liquid blockage around the wellbore region can significantly decrease the gas and condensate extraction volume from a condensate reservoir. In these kinds of reservoirs, the rock surfaces are commonly...
Mechanisms and patterns of crude oil mobilization in microscopic pores under gravity-assisted CO2 miscible displacement: A case study of tight conglomerate reservoirs in the Mahu Sag, Xinjiang
August 2026
To address the unclear understanding of the microscopic oil displacement mechanisms, patterns of oil mobilization in pore throats, and optimal displacement methods for gravity-assisted CO2 miscible...
Reservoir characterization and pore system heterogeneity analysis of the Eocene Mangahewa Formation: Insights from Kapuni Field, Taranaki Basin
August 2026
Understanding the controls of depositional and diagenetic processes on pore system evolution is essential for predicting fluid flow behavior in sedimentary reservoirs. The sandstones of the Mangahewa...
Mechanistic understanding and mathematical advancements of spontaneous imbibition and fluid saturation measurement: A comprehensive review
August 2026
Accurate prediction of the imbibition of fluid in pores would help to properly estimate the oil/gas recovery. This study is focused on imbibition estimation, considering the influences of various rock...
Torsional vibrations rejection in drilling systems: A combined observer-higher-order sliding mode control approach
August 2026
One of the fundamental challenges in drilling systems is the phenomenon of torsional vibrations that can cause system destruction. This paper presents a new control approach to reject stick-slip vibrations...
Impact of inlet velocity on non-Darcian-Forchheimer oil flow in porous media: A numerical approach
August 2026
Predicting fluid behaviour accurately is crucial for optimising extraction methods in petroleum engineering due to the considerable hurdles posed by the non-Darcian flow of oil through porous surfaces....
A review on functional group chemistry and structure-to-function design for mechanism-centric nanoparticle EOR
August 2026
A significant challenge in advancing nanoparticle-based enhanced oil recovery (EOR) is the gap between synthesis and application. Many reviews catalog surface modification techniques but fail to explain...
The leakage source analysis and the diffusion law of buried hydrogen pipeline
Available online 24 July 2026
To investigate the hydrogen leakage and diffusion behavior of buried hydrogen pipelines, this paper establishes a fluid-domain model specifically for buried pipelines and examines the effects of operating...
Optimized CO2 injection modeling and storage performance evaluation in the Hardeman basin
Available online 21 July 2026
Effective geological carbon dioxide (CO2) sequestration depends not only on injection operations but also on strategic storage site selection that ensures long-term containment and injectivity. This...
Generation and development of micro-annulus under complex load environment conditions in well deviated sections and barrier establishment method
Available online 16 July 2026
The cyclic loading and unloading of casing internal pressure is an important influencing factor causing the generation and development of micro-annulus at the wellbore cementation interface.The well...
An Experimental and Time Series Artificial Intelligence modeling of Shale swelling in Water-Based Mud systems
Available online 2 July 2026
Drilling in shale formation is a challenging and technologically advanced process, primarily because of the diffusion of aqueous species into the nano-spacing. The interaction between water and shale...
Integrated experimental and simulation study of asphaltene precipitation during miscible-rich gas injection in heavy oil reservoirs
Available online 2 July 2026
Miscible hydrocarbon gas injection can lead to asphaltene precipitation by altering the fluid phase equilibrium. The present study characterizes oil samples using SARA (saturates, aromatics, resins,...
Interfacial tension modeling in CO2-brine systems using machine learning for enhanced CO2 storage
June 2026
This study introduces an advanced machine learning (ML) framework to predict interfacial tension (IFT) in CO2-brine systems, a key factor in optimizing carbon capture and storage (CCS) processes. Accurate...
A clustering-guided feature enhancement and Bayesian-optimized LSTM approach for LC temporal anomaly detection
June 2026
Lost circulation (LC), as one of the high-risk accidents in drilling, usually occurs when the wellbore pressure is greater than the formation pressure, causing a large amount of drilling fluid to seep...
Relative permeability and capillary pressure estimation via physics-informed machine learning and reinforcement learning
June 2026
Accurately predicting multiphase fluid flow in oil and gas reservoirs is crucial to optimizing production and minimizing costs. However, traditional numerical reservoir simulations are computationally...
Enhancing the properties of heavy crude oil in the Maysan field using low molecular weight solvents in a high-speed extraction unit equipped with top baffles
June 2026
Heavy crude oils present major challenges in transportation and front-end processing due to their extremely high viscosity and low API gravity. This work introduces an integrated experimental–statistical–mechanistic...
Development status of integrated CO2 fracturing-enhanced recovery-storage technology
June 2026
Driven by the dual objectives of the global energy industry—substantially enhancing hydrocarbon recovery and achieving long-term CO2 geological sequestration—this paper systematically reviews the development...
Discrete element method for investigating the borehole wall rock failure process based on the enhancement effect of microbial drilling fluids
June 2026
Borehole wall instability in unconsolidated formations is a critical challenge in drilling engineering and requires urgent attention. Microbially induced calcium carbonate precipitation (MICP) is a...
