An environmentally friendly and low-cost alginate-based gel for water management in petroleum reservoirs: Characterization and efficacy investigation
Available online 8 March 2025
Water production in petroleum reservoirs poses considerable challenges, such as lower production efficiency, higher operational costs, and severe environmental risks. This study investigates the effectiveness...
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Predicting water-based drilling fluid filtrate volume in close to real time from routine fluid property measurements
Available online 7 March 2025
Drilling operations depend on precisely controlling drilling fluid filtration volume (FV), which affects formation integrity, costs, and borehole stability. Maintaining optimal FV is essential to prevent...
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Rapid Screening and Optimization of CO2 Enhanced Oil Recovery Operations in Unconventional Reservoirs: A Case Study
Available online 5 March 2025
CO2 injection not only effectively enhances oil recovery (EOR) but also facilitates CO2 utilization and storage. Rapid screening and optimization of CO2-EOR operations is urgently needed for unconventional...
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Experimental and modelling studies on static sag of solid weighting powders in Polysulfonate workover fluids at high temperature and high pressure
February 2025
The solid weighting material in a high-density workover fluid is prone to static sag. Existing experimental methods cannot predict the parameters of the settling stability of workover fluids at high...
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Synergistic enhancement of oil recovery: Integrating anionic-nonionic surfactant mixtures, SiO2 nanoparticles, and polymer solutions for optimized crude oil extraction
February 2025
Enhanced oil recovery (EOR) methods are essential for optimizing oil extraction from modern reservoirs. This research delved into the synergistic impact of combining anionic and nonionic surfactant...
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Dynamical counterfactual inference under time-series model for waterflooding oilfield
February 2025
The performances of numerical simulation and machine learning in production forecasting are severely dependent on precise geological modeling and high-quality history matching. To address these challenges,...
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Intelligent optimization of fracturing stage and cluster parameters for tight oil reservoir
February 2025
The Mahu oilfield in the Junggar Basin of Xinjiang has the characteristics of poor reservoir quality, large horizontal stress difference, and strong heterogeneity, which poses challenges in oil production...
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Discussion of the feasibility of spontaneous ignition, oil requirement, and air requirement for air injection in shale and tight reservoirs
February 2025
Because of the nature of low permeability of shale and tight reservoirs, a gas injection method has the advantage of enhancing oil recovery. Among gases, air has its vast and free resources. And one...
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Effect of potential determining ions on sulfonated polyacrylamide behavior during smart water-polymer injection into carbonate reservoirs
February 2025
In low salinity polymer flooding (LSPF), an advanced hybrid method for enhanced oil recovery (EOR), less attention has been given to the impacts of potential determining ions on polymer behavior in...
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Untreatment reutilization of high-salinity flowback fluid and produced water to prepare fracturing fluid by using associative thickener
February 2025
Reutilizing flowback fluid and produced water to prepare fracturing fluid is still an urgent problem that needs to be solved and is not well solved. In this work, an anti-salt associative thickener...
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Low-temperature oxidation characteristics and reaction pathways of crude oil within tight shale during air injection
February 2025
The investigation of low-temperature oxidation (LTO) of crude oil within tight shale holds significant importance due to its implications for subsequent oxidation reactions and enhanced oil recovery...
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Evolution law of stress induced by pressure depletion in fractured shale reservoirs: Implications for subsequent refracturing and infill well development
February 2025
Stress changes associated with reservoir depletion have been frequently observed. Stress evolution within and around the drainage areas can affect the completion of infill wells and refracturing considerably....
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The rock cutting simulation of heterogeneous granite using FDEM method
February 2025
Many advanced rock breaking methods are emerged form improving the ROP in deep formation drilling in recent years, such as electric pulse rock breaking, ultrasonic rock breaking and hydraulic rock breaking....
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Formation damage evaluation and fracturing fluids in tight and shale oil reservoirs: Review and envision
Available online 28 February 2025
Tight and shale oil reservoirs are characterized by small pore throats, low porosity, and low permeability, which must be stimulated to increase production. Fluid flow experiences a multi-scale transport...
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Optimizing heavy crude oil conversion: Catalytic thermolysis with TiO2@ α-Fe2O3 nanocomposite and surfactant dynamics
Available online 24 February 2025
Currently, as the production of light crude oil is reaching its peak, the focus of the petroleum industry is shifting towards significant amount of heavy oil to meet the increasing need for energy and...
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A review of the critical conditions required for effective hole cleaning while horizontal drilling
Available online 13 February 2025
Horizontal drilling has become increasingly prevalent in the oil and gas industry due to its potential for enhanced reservoir recovery and reduced environmental impact. However, effective hole cleaning...
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Study on rapid construction of microemulsion system based on EACN of crude oil measured by the direct method
Available online 8 February 2025
The purpose of this study is to delineate the applicability of the direct method for determining the equivalent alkane carbon number (EACN), a crucial parameter in the hydrophilic-lipophilic deviation...
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Micro- and macroscopic experiments on self-adaptive mobility control and displacement efficiency of carbon-based composite nanofluid for enhanced oil recovery
Available online 25 January 2025
Reservoir heterogeneity, unfavorable water–oil mobility ratio, and high oil-water interface energy are primary constraints impeding macroscopic sweep and microscopic oil displacement efficiencies of...
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Drilling dynamics measurement of drilling motors and its application in recognition of motor operation states through machine learning
December 2024
Drilling motors are widely used in unconventional oil and gas exploration. Due to the increased non-productive time and drilling costs brought about by accidental damage to drilling motors, predictive...
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Estimation of SARA composition of crudes purely from density and viscosity using machine learning based models
December 2024
Accurate characterization of crude oils by determining the composition of saturates, aromatics, resins and asphaltenes (SARA) has always been a challenging task in the petroleum industry. However, conventional...
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Nanoparticle-stabilized CO2 foam flooding for enhanced heavy oil recovery: A micro-optical analysis
December 2024
Surfactant flooding is a well-known chemical approach for enhancing oil recovery. Surfactant flooding has the disadvantage that it cannot withstand the harsh reservoir conditions. Improvements in oil...
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Multiphase flow challenges in drilling, completions, and injection: Part 2
December 2024
This review addresses the diverse applications of multiphase flows, focusing on drilling, completions, and injection activities in the oil and gas industry. Identifying contemporary challenges and suggesting...
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Multiphase flow challenges in drilling, completions, and injection: Part 1
December 2024
This review addresses the diverse applications of multiphase flows, focusing on drilling, completions, and injection activities in the oil and gas industry. Identifying contemporary challenges and suggesting...
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Effect of monovalent/divalent ions and SiO2-based nanocomposite dosage on thermochemical stability of HPAM polymeric solutions
December 2024
This study evaluated the effect of monovalent and divalent ions and the dosage of a SiO2-based nanocomposite on the thermochemical stability of HPAM polymeric solution. Chelating amine–functionalized...
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Numerical investigation of proppant transportation characteristics in hydraulically fractured wedge fractures
December 2024
Hydraulic fracturing creates multiple induced fractures and micro-fractures, forming a complex fracture network in the reservoir. The study of the transport and distribution of the proppant within the...
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