Self-supervised simultaneous deblending and interpolation of incomplete blended data using a multistep blind-trace U-Net
March 2025
Blended acquisition offers efficiency improvements over conventional seismic data acquisition, at the cost of introducing blending noise effects. Besides, seismic data often suffers from irregularly...
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Damage mechanism analysis of polymer gel to petroleum reservoirs and development of new protective methods based on NMR technique
March 2025
Polymer gels are widely used in water control and enhanced oil recovery in oil fields. However, the damage mechanism of polymer gels to layers with remaining oil and not requiring plugging and corresponding...
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Experimental study of EOR mechanisms of non-chemical CO2 microbubbles and their impact on pore structures
March 2025
Non-chemical CO2 microbubbles as a mobility control technology in enhanced oil recovery (EOR) and carbon sequestration are becoming attractive. In this study, the EOR mechanisms of non-chemical CO2...
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Rock breakage and temperature rising of rock cutting after high-temperature treatment
March 2025
Geothermal energy is a clean and ecologically friendly energy source with significant potential. The temperature variations between the Polycrystalline Diamond Compact (PDC) cutter and the rock of the...
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Insights into the pore structure and hydrocarbon accumulation of lacustrine organic-rich shales
March 2025
With the development of unconventional hydrocarbon, how to improve the shale oil and gas recovery become urgent. Therefore hydraulic fracturing becomes the key due to the complicated properties of the...
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Formation mechanism and reservoir quality evaluation in tight sandstones under a compressional tectonic setting: the Jurassic Ahe Formation in Kuqa Depression, Tarim Basin, China
March 2025
The northern structural belt of Kuqa Depression is adjacent to the South Tianshan orogenic belt, which are characterized by complex geological conditions. The reservoir quality of the Jurassic Ahe Formation...
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Morpho-dynamics in fan deltas: Effect of topography on flow transformation, facies distribution and graded profile evolution, a case study in XLG fan delta
March 2025
Fan deltas are usually constructed through episodic flood event with debris flow transforming to hyper-concentrated flow during sediments proceeding. However, the role of topography in controlling the...
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TOC
March 2025
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A robust seismic wavefield modeling method based on minimizing spatial simulation error using L2-norm cost function
March 2025
To reduce the spatial simulation error generated by the finite difference method, previous researchers compute the optimal finite-difference weights always by minimizing the error of spatial dispersion...
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Experimental investigation into CO2 huff-n-puff in low-permeability heavy oil reservoirs: Role of fractures
March 2025
Low-permeability heavy oil reservoirs are characterized by poor flowability, generally mandating hydraulic fracturing to commence production. CO2 huff-n-puff in fractured reservoirs is an effective...
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Research on the pollution and damage mechanism of drilling fluid on casing during ultra-deep well drilling process
March 2025
In drilling ultra-deep wells, the drilling fluid circulation usually causes erosion damage to downhole casing and drilling tools. However, the extent and process of this damage to the downhole tools...
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Mechanism of proppant transport and deposition in rough intersecting fractures after offshore fracturing
March 2025
To accurately analyze proppant transport in rough intersecting fractures and elucidate the interaction mechanisms among liquid, particles, and rough walls, this study reconstructed a numerical model...
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Energy and heat transfer analysis on the heating process of crude oil tank with mechanical stirring
March 2025
Taking into account the characteristics of non-Newtonian fluids and the influence of latent heat of wax crystallization, this study establishes physical and mathematical models for the synergy of tubular...
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Geological-engineering comprehensive evaluation model and application of feasibility of hydraulic fracturing in hydrate-bearing sediments
March 2025
Natural gas hydrates (hereinafter referred to as hydrates) are a promising clean energy source. However, their current development is far from reaching commercial exploitation. Reservoir stimulation...
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Coupling mechanism analysis of CO2 non-Darcy flow in multi-scale reservoirs: A case study of the life-cycle process of fracturing-development in shale oil reservoirs
March 2025
With policy support for carbon capture, utilization, and storage (CCUS), an integrated approach that combines energy storage fracturing, CO2-enhanced oil recovery (EOR), and storage emerges as a promising...
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An integrated multi-scale approach for transient analysis of multi-well horizontal pad with well interference in shale gas reservoirs: Methodology and case study
March 2025
Shale gas, as a clean, low-carbon, and abundant unconventional natural gas resource, plays a crucial role in achieving clean energy transformation and carbon neutrality. The Fuling shale gas reservoir...
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Study on the mass transfer characteristics of hydrogen in heavy oil by a modified dynamic pressure step method
March 2025
The dissolved hydrogen, rather than gaseous hydrogen, plays a crucial role in the hydrogenation process. A thorough understanding of hydrogen dissolution is essential for optimizing the hydrogenation...
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An integrated method of data-driven and mechanism models for formation evaluation with logs
March 2025
We propose an integrated method of data-driven and mechanism models for well logging formation evaluation, explicitly focusing on predicting reservoir parameters, such as porosity and water saturation....
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OFC
March 2025
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Experimental investigation on the effects of deep eutectic solvents (DES) on the wettability of sandstone samples
March 2025
Recently, deep eutectic solvents (DES) have received great attention in assisting water flooding and surfactant flooding to improve oil recovery because they can reduce the interfacial tension (IFT)...
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Adaptive subtraction with 3D U-net and 3D data windows to suppress seismic multiples
March 2025
The deep convolutional neural network U-net has been introduced into adaptive subtraction, which is a critical step in effectively suppressing seismic multiples. The U-net approach has higher precision...
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Dynamic reservoir monitoring using similarity analysis of passive source time-lapse seismic images: Application to waterflooding front monitoring in Shengli Oilfield, China
March 2025
In common practice in the oil fields, the injection of water and gas into reservoirs is a crucial technique to increase production. The control of the waterflooding front in oil/gas exploitation is...
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Unraveling key factors that influence and shape fluid flow dynamics in Brazilian salt Lagoon stromatolites: A case study in pre-salt analogues
March 2025
This study analyzes Brazilian stromatolites in Lagoa Salgada, serving as analogs for pre-salt rocks in the Santos and Campos basins. Despite their excellent petrophysical properties, such as high porosity...
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Coupling analysis of transient cuttings transport and tubular mechanical behaviors in extended-reach drilling
March 2025
It is generally believed that cuttings have a significant impact on the forces of tubular string in extended-reach drilling. However, there are few studies attempted to investigate and quantify it....
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Evaluation of CO2 storage in fractured coal seam and the effect of coal fines
Available online 29 March 2025
Gas channeling in fractures during CO2 injection into the deep coal seam seriously reduces the CO2 storage efficiency after the development of coalbed methane. The generation and migration of coal fines...
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