Insight into the role of masking agents in inhibiting water-based mud contamination of oil well cement slurry
June 2026
During cementing operations, unavoidable contact between water-based mud (WBM) and oil well cement (OWC) often degrades OWC performance. This is particularly problematic in natural gas or offshore wells,...
Multi-spherical interactions driving the generation, accumulation and distribution of natural gases and CO2 resources in the Changling Fault Depression, Songliao Basin, China
June 2026
This study systematically investigates the genesis, migration, accumulation, and distribution patterns of natural gas and CO2 in the Changling Fault Depression of the Songliao Basin through an interdisciplinary...
In-situ combustion of heavy oil within a vuggy carbonate reservoir: Part II—Mechanism of permeability inversion and rock fabric transformation
June 2026
Predicting the performance of in-situ combustion (ISC) in carbonate reservoirs is notoriously challenging. This study reveals a paradoxical permeability inversion phenomenon: initially high-permeability...
Dynamic evolution of stress interference during the multi-layer exploitation of sand-shale interacted continental shale oil reservoirs
June 2026
Accurate prediction of stress evolution induced by production pressure depletion after hydraulic fracturing is essential for efficient development of stacked continental shale reservoirs. This study...
Artificial intelligence in petroleum and natural gas prospect evaluation and prediction
June 2026
Artificial intelligence has shown great performance and considerable potential in petroleum and natural gas prospect evaluation and prediction (PPEP). Multiple machine learning (ML) and deep learning...
A data augmentation method for lacustrine shale lithofacies classification based on a conditional diffusion probabilistic model: A case study from the Dongying Depression, Bohai Bay Basin, China
June 2026
Accurate identification of lithofacies is critical for shale hydrocarbon exploration and development. Although machine learning (ML) is one of the most effective approaches for predicting shale lithofacies,...
Multiparameter Bayesian full-waveform inversion with uncertainty quantification based on regularized inverse scattering theory for elastic transversely isotropic media
June 2026
Complex subsurface structures exhibit significant anisotropic characteristics, making multi-parameter imaging techniques important for achieving a more comprehensive geological interpretation. Full-waveform...
TOC
June 2026
Conquering high-temperature acidic corrosion with a molecular anvil: A robust pyridinium quaternary ammonium salt
June 2026
Achieving robust corrosion protection under extreme acidic and high-temperature conditions remains a formidable challenge in the oil and gas industry. In this work, we report a molecularly engineered...
Beyond spatial averaging: Modeling DAS seismic responses with optical system effects
June 2026
Distributed acoustic sensing (DAS) utilizes standard optical fibers as continuous distributed seismic sensors, enabling the acquisition of subsurface vibration information with high spatial sampling...
Adaptive structure-guided impedance inversion using implicit sparse constraint
June 2026
Structure-guided inversion has been increasingly adopted to enhance structural features and improve the interpretability of seismic impedance imaging. However, the limited bandwidth of seismic wavelets...
Preparation and performance evaluation of phase change material microcapsules for smart regulation of drilling fluid temperature for marine gas hydrate reservoirs
June 2026
In the drilling process of hydrates, hydrate decomposition and regeneration can cause wellbore collapse and plugging. Herein, phase change materials (PCMs) were introduced into the drilling fluids to...
Characteristics of fracturing fluid water blocking damage in tight gas reservoirs based on two-dimensional NMR T1–T2
June 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...
Insights of abrasive water jet slotting mechanisms in hard rock using CFD-DEM simulation
June 2026
Abrasive water jet (AWJ) slotting technology shows great potential for stimulating oil and gas reservoirs, particularly in hard rock formations. Understanding the transport mechanisms of water and abrasives...
High-fidelity numerical simulation of ocean-bottom node 4C seismic data using the acoustic-elastic coupling equation
June 2026
The complex wavefields in ocean-bottom node (OBN) four-component (4C) seismic data, particularly interface waves like Scholte waves, pose significant challenges for processing and inversion. A key issue...
Molecular dynamics simulation for effect of stress on quartz dissolution: Implication on the development of high-quality reservoirs in foreland basins
June 2026
The dissolution of unstable minerals such as feldspar and carbonate is currently recognized as the primary cause of the dissolution pores in most clastic rock reservoirs globally. However, research...
Reinterpretation of volcanic and hydrothermal influence on organic matter accumulation and paleo-depositional environment in a lacustrine shale system: Insight from interpretable machine learning model
June 2026
The significant resource potential of lacustrine shale oil has spurred interest in understanding organic matter enrichment mechanisms. However, conventional analytical methods are often constrained...
Erosion characteristics and energy economy of low-pressure abrasive gas jet across distinct lithologies
Available online 20 June 2026
The exploitation of deep-earth energy resources demands rock excavation technologies that are efficient, compact, and reservoir-friendly. While high-pressure abrasive water jets (HPAWJ) are effective,...
Mechanisms of mobilizing water-sealed residual gas via low-frequency pulsating waves
Available online 19 June 2026
Breaking the gas–water interfacial equilibrium of water-sealed residual gas is critical for improving recovery in water-invaded gas reservoirs. Given the limitations of existing energy-enhancement and...
Drilling knowledge constrained deep learning for autonomous drilling optimization in deep geological formations
Available online 19 June 2026
The development of deep and ultra-deep underground resources is often constrained by high drilling costs and low operational efficiency, among which the rate of penetration (ROP) serving as a critical...
Recent advances in polymer gels in oil and gas drilling and production engineering: A review
Available online 19 June 2026
Polymer gels are recognized as essential functional materials in oil and gas drilling and production engineering due to the design flexibility of their three-dimensional networks, the controllability...
A review of matrix acidizing for carbonate reservoirs
Available online 17 June 2026
Carbonate reservoirs are rich in geothermal and petroleum resources, and matrix acidizing is one of the main methods for such reservoir’s stimulation. This study systematically reviewed the research...
A fluidic hammer as a high-fidelity seismic-while-drilling source: A direct, quantitative comparison with conventional drill bits
Available online 16 June 2026
We performed a direct comparative analysis of the seismic wavefields radiated from three distinct drilling mechanisms under controlled laboratory conditions: percussion-rotary drilling with a fluidic...
