Synergizing foam stability, gas mobility control, and oil recovery: A new approach combining silane-silica oxide and MFomax
June 2026
Oil reservoirs subjected to a gas recovery technique are commonly challenged by early gas breakthroughs affecting the production rate. Foam is injected to block and divert gas to reservoir sections,...
Comprehensive judgment method of low production causes in tight gas reservoirs——Taking the LX gas reservoir in Ordos Basin as an example
June 2026
The low production of tight gas reservoirs arises from complex and multifaceted causes, and elucidating these factors is crucial for guiding the formulation of effective stimulation strategies. Conventional...
Spatially continuous regularization of the parameters of the capacitance–resistance model
June 2026
The capacitance–resistance model (CRM) is a widely-used model for predicting well production rates because it requires the estimation of only a small number of parameters to describe production wells...
Pressure transient analysis of commingled multilayer reservoirs: A deconvolution-based approach for individual layer characterization using sparse PLT data
June 2026
Layering is common in hydrocarbon reservoirs due to stratified sedimentary deposition, with each layer exhibits distinct characteristics. Multilayer reservoirs are typically classified as systems with...
Fracture conductivity damage in shale oil reservoirs: Mechanism model and its impact on oil production
June 2026
Shale oil reservoirs often experience severe hydraulic fracture stress sensitivity and conductivity damage, leading to rapid production decline and low oil recovery. Understanding fracture damage mechanisms...
Integrated electrochemical and machine learning framework for SiO2/CaCO3 under-deposits driven welded X65 carbon steel corrosion mitigation in sour service conditions
June 2026
The integrity of welded X65 carbon steel (CS) pipelines in oil and gas systems is significantly compromised by preferential weldment corrosion (PWC) and pitting in sour conditions. This study clarifies...
Seismic attribute integration and neural network analysis for quantitative reservoir characterization: A case study from the Offshore Nile Delta (Egypt)
June 2026
Accurate reservoir characterization is essential for optimizing hydrocarbon exploration and production, particularly in complex deep-water environments. The Simsat Field, Offshore Nile Delta, features...
Cellulose bionanomaterial design for enhanced oil recovery: A review of existing, emerging technologies and future outlook
June 2026
Cellulose nanoparticles are attracting interest in diverse fields because of their availability, low cost, and benign nature. Albeit previous studies have reported excellent experimental results, the...
Research on intelligent kick early warning technology based on LSTM-AE unsupervised learning
June 2026
In oil and gas exploration, kick is a typical high-risk downhole incident. Currently, most intelligent kick detection methods belong to supervised learning, which depends on labeled samples and is prone...
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...
