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Laboratory investigation on inhibition of polyvinyl alcohol used for wireline coring drilling
To address the problems of wall collapse, cuttings slurrying, and scaling on the inner wall of the drill pipe, which often occur in small-diameter...
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Robust fracture intensity estimation from petrophysical logs and mud loss data: a multi-level ensemble modeling approach
This study presents a pioneering machine learning approach to continuously model fracture intensity in hydrocarbon reservoirs using solely...
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Automatic arrival-time picking of P- and S-waves of micro-seismic events based on relative standard generative adversarial network and GHRA
Rapid, high-precision pickup of microseismic P- and S-waves is an important basis for microseismic monitoring and early warning. However, it is...
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Acoustic impedance prediction based on extended seismic attributes using multilayer perceptron, random forest, and extra tree regressor algorithms
Acoustic impedance is the product of the density of a material and the speed at which an acoustic wave travels through it. Understanding this...
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Experimental study on the pseudo threshold pressure gradient of supported fractures in shale reservoirs
Pseudo threshold pressure gradient (PTPG) exists in the propped fractured reservoir, but its nonlinear flow law remains unclear. The effects of the...
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Sand screen selection by sand retention test: a review of factors affecting sand control design
The installation of sand screens in open-hole completions in the wellbore is crucial for managing sand production. The main reason for using...
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Maximizing the capacity and benefit of CO2 storage in depleted oil reservoirs
Sequestering CO 2 in depleted oil reservoirs provides one of the most appealing measures to reduce greenhouse gases (GHG) concentration in the...
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Integrity assessment of shale gas wells in Changning Block based on hierarchical analysis method
The integrity of shale gas wells is crucial in ensuring safety and efficiency throughout the development process. Such integrity spans the entire...
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Research on the factors influencing the width of hydraulic fractures through layers
The method of segmented hydraulic fracturing in the coal seam roof has proven to be an efficient technique for coalbed methane exploitation. However,...
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Generation mechanism of overpressures caused by disequilibrium compaction in the northwestern Bozhong subbasin, China
In sedimentary basins, deep-seated overpressure conditions are frequently encountered. However, the precise origins of these overpressure conditions...
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Improving the in-situ upgrading of extra heavy oil using metal-based oil-soluble catalysts through oxidation process for enhanced oil recovery
The demand for fuel from unconventional sources is increasing all over the world, however, there are still special and strict regulations regarding...
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A new workflow for warning and controlling the water invasion
Warning and controlling the water invasion in water-driving reservoirs is significant because water invasion will seriously hamper well productivity...
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Development and field application of strongly resilient temporary plugging diversion agent for fracturing
Temporary plugging diversion fracturing in multistage horizontal well is normally used to improve stimulation efficiency and increase production in...
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Tight carbonate reservoir evaluation case study based on neural network assisted fracture identification and analytic hierarchy process
Comprehensive evaluation of reservoirs is an important link in gas reservoir exploration and development. The evaluation of tight carbonate...
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Image-based microscale rock ty** and its application
Rock ty** plays a crucial role in describing the heterogeneity of the reservoir. Most of the conventional rock ty** methods are implemented to...
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Pore throat distributions and movable fluid occurrences in different diagenetic facies of tight sandstone reservoirs in the Triassic Chang 6 reservoirs, Wuqi Area, Ordos Basin, China
The 6th member of the Triassic Yanchang Formation, hereafter referred to as Chang 6 reservoir, in the Wuqi area of the Ordos Basin presents...
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Gas–water percolation of tight sandstone reservoirs with different pore types in the Ordos Basin
To investigate the percolation mechanism of tight sandstone reservoirs, qualitative and quantitative methods are applied to analyze the pore...
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Effect of equilibrium contact angle on water equilibrium film thickness for the carbon dioxide–brine–mineral system based on surface force theory
The thickness of the thin wetting film depends on disjoining pressure forces, and it evolves with pH evolution due to brine acidification at the...
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Organic geochemical evaluation of crude oils from some producing fields in the Niger Delta basin, Nigeria
Geochemical and biomarker characteristics of representative crude oil samples from selected fields in southern Nigeria were evaluated to determine...
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A novel reservoir classification method for sandstone reservoir evaluation using multi-scale digital rock method
The formulation of an effective development plan, optimizing exploitation efficiency, relies heavily on accurate reservoir characterization. However,...
