Physicochemical characterization of oilfield produced water and its treatment constraints
June 2026
Produced water is the largest waste stream generated during oil and gas production, presenting significant environmental risks due to its complex chemical composition. Characterizing the contaminant...
Research on segmented modelling and prediction of shale gas production based on time series analysis
June 2026
At present, the world is experiencing an unprecedented period of change, and the third wave of energy conversion is also emerging. Natural gas is widely regarded as an ideal bridge between traditional...
Alumina nanofluid enhances the heavy-oil upgrading process
June 2026
Upgrading heavy crude oil remains one of the most critical and technically demanding processes in the petroleum industry, primarily due to the inherently poor quality of the various types of crude oil...
A review on cementing system for CO2 storage wells: Mechanisms, testing protocols and screening criteria
June 2026
Long-term containment of CO2 in geological formations demands cementing systems that can withstand highly aggressive downhole environments, where carbonic acid, brine, and other reactive species threaten...
Comprehensive permeability-transform solutions for shale and sandstones using data sets from around the globe
June 2026
This study uses 13 proprietary data sets from sedimentary basins around the globe to constrain the permeability and porosity ranges occupied by clastic rocks (sandstones and shale). The combined data...
Asphaltene deposition during miscible and immiscible gas injection in tight heavy oil reservoir: Implications for formation damage
June 2026
Gas injection is frequently used to displace the trapped oil. However, this may lead to deposition of asphaltene, which can profoundly block the pores and throats of the porous media, resulting in reduced...
Experimental investigation of pressure, temperature, and salinity effects on the interfacial tension of H2/brine/cushion gases: Implications for H2 geo-storage
June 2026
Underground hydrogen storage (UHS) in saline aquifers is a promising solution for large-scale, long-duration energy storage in a low-carbon energy system. Cushion gases, such as N2, CO2, and CH4, are...
Facies-controlled diagenesis and its impact on reservoir quality of carbonate sequences: Cretaceous Sarvak Formation in the Zagros Basin, Iran
June 2026
The Cretaceous Sarvak Formation in the Zagros Basin exhibits complex reservoir heterogeneity controlled by depositional facies and sequence stratigraphy-constrained diagenesis. This study integrates...
Paleocene spatiotemporal structure and evolution of the Dongying depression in the eastern Bohai Bay Basin: Evidence from seismic interpretation and basalt 40Ar/39Ar dating
June 2026
The Paleocene marked a critical structural transition period from tectonic subduction to extensional rifting in the Bohai Bay Basin. To reconstruct the spatiotemporal structural framework, evolutionary...
Integrated approach and insights into shale gas potential: Geological, petrophysical, geochemical, and geomechanical evaluation of the Khatatba Formation (Western Desert, Egypt)
June 2026
This study provides a comprehensive assessment of the shale gas potential of the Middle Jurassic Khatatba Formation in the Obaiyed Field, Western Desert, Egypt, by integrating geological, petrophysical,...
Application of neutron-X-ray dual-modal imaging in oil and gas well cementing under ultra-high temperature conditions
June 2026
Understanding the failure mechanisms affecting cement sheath integrity under ultra-high temperature (UHT) conditions is essential for ensuring wellbore integrity and supporting the safe and sustainable...
A Machine Learning Model for HTHP Shear-Stress Prediction of Oil-Based Drilling Fluid Using Polynomial-Corrected RBF-CRM
Available online 29 May 2026
Accurate prediction of the shear stress of oil-based drilling fluids (OBDF) under high-temperature and high-pressure (HTHP) conditions is essential for drilling-hydraulics calculation and safe drilling...
Field characterization and 3D static modeling of the gas-bearing reservoirs, Scarborough field, Northern Carnarvon Basin, Australia
Available online 13 May 2026
The Scarborough gas field, located in the Exmouth Sub-basin of the Northern Carnarvon Basin, is one of the largest undeveloped gas discoveries offshore Western Australia. Despite its favorable geological...
A succinct model for prediction of crude oil emulsion viscosity
Available online 2 May 2026
Flow and mixing of oil and water in petroleum production systems often lead to formation of emulsions. The primary factors influencing the dynamic viscosity of emulsions are variations in temperature,...
Performance prediction of CO2 huff-and-puff in heavy oil reservoirs using an improved adaboost ensemble learning algorithm
Available online 2 May 2026
CO2 huff-and-puff is an effective method to enhance heavy oil recovery, while the success of such operations is highly dependent on the classification of well incremental oil. However, the Adaboost...
Characterizing the present-day stress field and fracture intensity in the Kuqa Depression, northwestern China
Available online 24 April 2026
Stress fields govern subsurface conditions and fracture development, which strongly influence hydrocarbon migration and accumulation in tight reservoirs. Yet, their characterization has often overlooked...
Innovative Technique to Control Sanding Tendency of Oil and Gas Wells
Available online 3 April 2026
Sand production is a worldwide problem facing thousands of oil and gas fields. A huge cost is directed annually to predict and control sand production and fix and replace equipment affected. This study...
Impact of paragenesis on the quality of a mixed carbonate-siliciclastic reservoir from the Perth Basin, Australia
Available online 2 April 2026
This research focuses on the Beekeeper Formation, a mixed carbonate-siliciclastic (MCS) reservoir in Western Australia. MCS reservoirs are proven to contain hydrocarbons in many fields worldwide. The...
Characterization of the coquinas of Brazil porous system through numerical simulation to evaluate poroelastic anisotropy and fluid flow dynamics
Available online 2 April 2026
The coquinas of the Brazilian pre-salt layers represent vast but complex hydrocarbon reservoirs, whose heterogeneous pore systems challenge accurate prediction of fluid flow and geomechanical behavior....
1D and 3D models of the northwest Persian Gulf’s Permo-Triassic petroleum system
Available online 2 April 2026
This study develops one dimensional (1D) and three dimensional (3D) basin models to evaluate the evolution of the Paleozoic petroleum system surrounding the studied gas field in the northwest Persian...
Carbon dioxide (CO2) storage in geological formations: Overview of mechanisms, storage media, leakage risk, and monitoring techniques
Available online 1 April 2026
The continuous rise in anthropogenic carbon dioxide (CO2) emissions poses severe environmental challenges, including global warming and climate change. Geological CO2 storage (GCS) has emerged as a...
Oil displacement by CO2 and water flooding in fine and conglomerate sandstones: Impact of micropore structure
Available online 1 April 2026
Developing low-permeability sandstone reservoirs by secondary and tertiary methods is strongly influenced by the micropore structure and pronounced heterogeneity, which remain topics of debate. To quantify...
Development of a next-generation Asphaltene inhibitor for sustained permeability protection and extended squeeze lifetime in carbonate reservoirs
Available online 1 April 2026
Asphaltene deposition remains one of the most severe causes of formation damage in carbonate reservoirs, leading to rapid permeability loss and costly flow assurance problems. To mitigate these effects,...
Enhancing drilling efficiency and sustainability through advanced cuttings transport: Fundamentals, modeling, and emerging technologies
Available online 1 April 2026
Efficient cuttings transport is a critical determinant of drilling performance, directly influencing non-productive time (NPT), energy efficiency, and environmental footprint, particularly as modern...
Deep learning supported uncertainty quantification of core saturation measurements
March 2026
Core extraction and analysis are fundamental components of reservoir development. Core samples provide continuous vertical sections of the subsurface, enabling detailed visual assessment of depositional...
