Heterogeneity in the molecular composition of effluent organic matter from petrochemical wastewater treatment plants in China
Available online 18 March 2026
The proliferation of petrochemical plants close to natural water bodies has resulted in emission of numerous organic pollutants into aquatic environments. However, the molecular composition of petrochemical...
Application of the AutoMix hybrid model for in-situ stress prediction in shale gas reservoirs
Available online 18 March 2026
Accurate in-situ stress prediction is critical to optimizing hydraulic fracturing design and enhancing reservoir stimulation in deep shale gas development. However, traditional methods often struggle...
Impacts of temperature and pressure on light hydrocarbon parameters during gas washing: Results from simulation experiments
Available online 18 March 2026
As a secondary alteration process in oil reservoirs and a critical mechanism for light oil and condensate formation, gas washing is predominantly governed by temperature and pressure. However, the dynamic...
Boosted organic carbon accumulation in the Late Cretaceous Songliao Basin during marine incursion events
Available online 18 March 2026
Although the Late Cretaceous marine incursion events (MI) significantly boosted organic carbon (OC) accumulation in the Songliao Basin, their net effects and accumulation mechanisms have long been debated....
Effects of swelling clay layers on fluid production from hydrate-bearing sediments induced by depressurization
Available online 17 March 2026
Clay-rich sediments are common in natural gas hydrate reservoirs and pose significant technical challenges in past field production tests. Among these, Na-montmorillonite significantly affects methane...
Research on low-viscosity high-elastic fracturing fluid system with specific recognition and supramolecular assembly
Available online 17 March 2026
Fracturing fluids for tight sandstone reservoirs often suffer from issues such as low sand-carrying efficiency, difficulties in fracturing and gel breaking caused by high viscosity, and increased costs...
Collaborative optimization of well operations and adjustment strategies in waterflooding reservoirs using an enhanced adaptive differential evolution algorithm
Available online 16 March 2026
Efficient optimization of well operations and adjustment strategies in large-scale waterflooding reservoirs is a high-dimensional and complex challenge due to strong decision coupling and reservoir...
Intelligent early kick recognition via knowledge-guided Bi-LSTM
Available online 16 March 2026
During oil and gas drilling, the accuracy of intelligent early kick recognition models relies on their detection of abnormal variation trends in monitoring parameters. These variation trends are contained...
Microscopic experiments and simulations of CO2 huff-n-puff displacement mechanism considering heterogeneity and fractures
Available online 14 March 2026
Heterogeneity and fractures significantly influence oil and gas migration. However, current research remains insufficient in clearly visualizing CO2 displacement mechanisms under such reservoir conditions....
Flocculation–microfiltration integration for high-salinity oilfield offshore produced water treatment
Available online 14 March 2026
This study evaluated an integrated treatment system that combines chemical destabilization (through flocculation) with membrane-based separation (via submerged microfiltration) for removing of dispersed...
Ensemble-based interpretation of Partitioning Inter-Well Tracer Tests for residual saturation and permeability estimation
Available online 14 March 2026
Partitioning Inter-Well Tracer Test (PITT) is a direct method for quantifying remaining oil saturation (), but conventional interpretation workflows can lead to significant overestimation if neglecting...
Evolution of multistage dolomitization fluids in the Upper Ediacaran Qigebrak Formation, northern Tarim Basin, China: Effects on reservoir formation
Available online 14 March 2026
The deep-buried dolomites of the Upper Ediacaran Qigebrak Formation in the Tarim Basin possess substantial hydrocarbon potential. Although diagenetic processes, particularly dolomitization, are recognized...
Enhancing the performance of high-temperature, high-salinity, high-density water-based drilling fluid using a rheological modifier with low viscosity and high yield point characteristic
Available online 14 March 2026
Deep oil and gas development is critical for ensuring stable fossil energy supply and facilitating a smooth energy transition. However, under extreme high-temperature, high-salinity, and high-density...
Characteristics of fracturing fluid water blocking damage in tight gas reservoirs based on two-dimensional NMR T1-T2
Available online 14 March 2026
In the development of tight gas reservoirs, effective flowback of fracturing fluids is crucial for enhancing production. However, water blocking damage caused by fluid retention significantly affects...
Laboratory testing of clayey-silty hydrate reservoir exploitation: Considering the permeability-stress coupling effect
Available online 14 March 2026
Elucidating the multi-field, multi-phase coupling mechanisms in submarine hydrate reservoirs is essential for releasing their energy potential. Current research gaps remain in understanding the permeability-stress...
Conquering high-temperature acidic corrosion with a molecular anvil: A robust pyridinium quaternary ammonium salt
Available online 14 March 2026
Achieving robust corrosion protection under extreme acidic and high-temperature conditions remains a formidable challenge in the oil and gas industry. In response, this work demonstrates a molecularly...
Preparation and performance evaluation of self-degrading core–shell structure temporary plugging agent
Available online 14 March 2026
Temporary plugging agents (TPAs) are widely used in oilfield development due to their self-removal after operations and their minimal effect on reservoirs. However, the current methods used to remove...
A model for shale gas flow and permeability leveraging coupled transport mechanisms
Available online 12 March 2026
The extraction of shale gas is challenged by complex flow mechanisms and significant microscale effects within nanoscale pores. Existing models often overlook key flow mechanisms such as end effects,...
Numerical simulation of integrated “fracturing-soaking-production” in tight reservoirs
Available online 12 March 2026
Integrated fracturing-flooding is a key technology to solve the problem of “difficult injection and difficult extraction” in tight oil and gas reservoirs. Focusing on three key physical processes in...
Mechanisms of CO2 nanobubble-enhanced oil recovery: Interfacial regulation and flow behavior control in porous media
Available online 12 March 2026
Nanobubbles (NBs) have unique physicochemical properties, including a large specific surface area and high mass transfer efficiency. They can be produced using environmentally friendly, low-cost physical...
The effect of geological features on hydraulic fracture propagation guided by radial boreholes in the thin interbedded reservoirs
Available online 12 March 2026
High-strength interlayers and lithological interfaces limit vertical fracture height and stimulation efficiency in the thin interbedded reservoir. This paper proposes a novel radial borehole fracturing...
Progressive Pseudo-label Self-supervised Waveform Inversion and Imaging Based On Multiscale Strategies: A Marine Data Case Application
Available online 11 March 2026
Full waveform inversion (FWI) and reverse time migration (RTM) have shown great potential in subsurface imaging, yet they remain challenged by migration artifacts and limited deep illumination. A novel...
Study on the pyrolysis of kerogen at varying moisture contents: Experimental modeling and ReaxFF simulation
Available online 11 March 2026
Hydrocarbon generation from shale usually occurs in a reducing aqueous environment. Understanding the pyrolysis characteristics of shale kerogen under hydrous conditions is crucial for elucidating the...
A critical review on deep-water oil and gas development equipment research and application: Floating platform, mooring cable and pile foundation
Available online 10 March 2026
As a crucial component of the global energy supply, deep-sea oil and gas resources exist in highly complex environments and pose significant technical challenges, necessitating reliance on floating...
A novel method for drilling rate of penetration prediction and transfer generalization based on physics-informed neural networks
Available online 9 March 2026
The rate of penetration (ROP) is a critical statistic for evaluating drilling efficiency, and its accurate prediction is essential for improving drilling performance and reducing operational costs....