Staged propagation mechanisms and their implications for fracture interaction and fracture swarm formation
Available online 3 June 2026
Hydraulic fracture swarms are widely observed in post-fracturing core samples, yet their formation mechanisms remain incompletely understood. In this study, we employ a visualized experimental system...
Identifying the magnesium source in hydrothermal dolostone reservoirs: A multi-proxy approach using δ26Mg, δ44/40Ca, and 87Sr/86Sr
Available online 3 June 2026
Dolostone, especially replacement dolostone, is a significant component of Earth's carbonate rock archive. Hydrothermal dolostones, often associated with fault zones, play a crucial role in the dolostone...
Polyacrylamide-assisted synthesis of highly dispersed Ni nanoparticles wrapped by SAPO-11 molecular sieves for enhanced alkane hydroisomerization performances
Available online 3 June 2026
A novel polyacrylamide-assisted method for synthesizing the hierarchical SAPO-11-wrapped Ni catalyst was proposed. In this method, firstly, Ni2+ ions from nickel salts were coordinated with nitrogen...
Seismic lithofacies classification and fault detection using self-organizing maps and convolutional neural networks in the Penobscot Field, Scotian Shelf, Eastern Canada
Available online 3 June 2026
Accurate characterization of lithofacies and fault networks is critical for delineating reservoir architecture, heterogeneity, and compartmentalization in structurally complex hydrocarbon systems. Conventional...
Quantifying the through-going evolution of strike-slip fault zones: Insights from analogue modelling
Available online 3 June 2026
Large strike-slip fault zones commonly develop through-going architectures through progressive linkage of fault segments. However, quantitatively characterizing the through-going evolution of strike-slip...
A nano-micro-continuum framework for liquid flow in multicomponent porous media: Impact of microporosity and microscale effects
Available online 2 June 2026
The multiscale features of shale, along with the inherent presence of microporosity due to current imaging limitations, pose significant challenges in accurately describing oil transport behavior. Microscale...
A resilience-oriented transient optimization approach for emergency operation of natural gas pipeline systems with linepack dynamics and priority-based load shedding
Available online 2 June 2026
Under extreme disturbances, the safety of natural gas pipeline networks is governed by transient capabilities to sustain fuel delivery rather than steady-state balance. Existing studies, often grounded...
Depositional environmental evolution and reservoir controlling effects of the P2x Formation in the Mahu Sag: Insights from the PCA-HCA coupled analysis
Available online 2 June 2026
The conglomerates of the Xiazijie (P2x) Formation in the Mahu Sag are dominated by dissolution pores of zeolite cement as the primary hydrocarbon reservoir spaces. Consequently, the storage characteristics...
Geological fault identification via multi-knowledge causally embedding graph representation applied in underground gas storage
Available online 1 June 2026
Geological fault identification is critical for gas storage safety, yet remains reliant on manual interpretation with inherent inefficiencies. While Artificial intelligent (AI) methods offer alternatives,...
Influence factors of long-term stability of silica-enriched Portland cement under ultrahigh temperatures
Available online 1 June 2026
Downhole high-temperature and high-pressure (HTHP) conditions can cause significant deteriorations of well cement, posing a major risk to wellbore integrity. A comprehensive experimental program is...
A physics-data hybrid model for energy consumption prediction of hydraulic rock drills with applications in petroleum engineering
Available online 30 May 2026
To address the issue of high energy consumption in electro-hydraulically driven rock drills, a hybrid energy consumption prediction model integrating physics-informed and data-driven approaches is proposed....
Fracture propagation mechanisms in shale across structural positions of complex tectonic zones under supercritical CO2 fracturing
Available online 30 May 2026
Supercritical CO2 (SC-CO2) fracturing has significant potential for shale gas stimulation and CO2 geological sequestration. However, the differentiated fracture propagation mechanisms of shale from...
Novel fracture network modeling method for tight reservoirs integrating mechanical and geometric characteristics
Available online 29 May 2026
Discrete fracture network (DFN) modeling is widely applied to characterize fracture systems in tight reservoirs, yet its accuracy is often limited by the lack of integration between geological, geometric,...
Online residual correction and hybrid modeling framework for cross-regional rate-of-penetration prediction
Available online 29 May 2026
In oil and gas drilling, the mechanical rate of penetration (ROP) is a key indicator of drilling efficiency, and its optimization is crucial for reducing drilling costs and shortening operational cycles....
An isotope-free transient kinetic approach to probe reactivity during the oxidative scission of ketones over VOX/ γ-Al2O3
Available online 29 May 2026
Although the oxidative scission mechanism of carbonyl compounds over alumina-supported vanadium oxides has been extensively studied, quantifying surface kinetic parameters under steady-state conditions...
In-situ stress controlled reservoir quality in ultra-deep sandstones in Qiulitage Structural Belt, Kuqa Depression, Tarim Basin, NW China,
Available online 28 May 2026
High industrial natural flow has been produced from the ultra-deep Cretaceous Bashijiqike sandstones (>6000 m) in the Qiulitage Structural Belt in the Kuqa Depression, Tarim Basin, northwestern China....
Pore pressure control on multi-scale reservoir properties in deep and ultra-deep sandstones of the Cretaceous Bashijiqike Formation, Kuqa Depression, Tarim Basin, NW China
Available online 28 May 2026
Understanding the effects of pore pressure on multiscale reservoir properties in deep and ultra-deep sandstones is important for many geological processes. This study integrated core analysis, computed...
Techno-economic feasibility evaluation framework for reverse-flow retrofitting in multi -product pipelines aimed at benefit augmentation
Available online 28 May 2026
As China's energy transition advances, optimizing flow direction in multi-product pipelines becomes critical to accommodate structural shifts in oil consumption, particularly reverse-flow operations....
Experimental research on failure mechanism and evolution characteristics of thermal-treated granites under action of impact load with PDC cutter
Available online 27 May 2026
High rock temperatures and complex engineering environments are the most significant problems in enhancing the rate of penetration (ROP) and drilling tool efficiency for hot dry rocks (HDR). Studying...
A knowledge-guided multi-task learning method for drill cuttings analysis
Available online 27 May 2026
Drill cuttings serve as a fundamental source of geological information in oil and gas exploration and development. However, traditional analysis remains largely manual, resulting in low efficiency and...
Influence of pore structure on high-voltage electrical pulse rock breaking: A coupled numerical approach
Available online 27 May 2026
High-voltage electrical pulse (HVEP) rock-breaking technology is extensively utilized due to its advantages of high energy density, controllable fragmentation zones, and tunable energy output. However,...
Diesel contamination reassembles cross-kingdom soil microbial networks via chemodiversity shifts
Available online 27 May 2026
Petroleum contamination not only selects hydrocarbon-degrading microbes but also reshapes dissolved organic matter (DOM), the chemical interface that mediates cross-kingdom interactions. However, the...
An intelligent differential optimization method for fracture parameters in long horizontal wells based on reservoir quality zoning
Available online 27 May 2026
Shale reservoirs are characterized by pronounced heterogeneity, rendering conventional homogeneous fracture spacing and experience-based design approaches inadequate for achieving efficient hydraulic...
Thermodynamic indicator of water sensitivity in deep geo-energy reservoir rocks
Available online 26 May 2026
This study proposes a thermodynamic characterization method for reservoir water sensitivity based on macro-lens infrared thermal imaging, aiming to address the lack of an efficient and fully quantitative...
Large language model-based AI agent for well logging data processing and interpretation
Available online 25 May 2026
Well logging data processing and interpretation are critical to reservoir evaluation and usually involve multi-source data integration, feature construction, and parameter inversion. These procedures...
