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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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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Using ultrasonic and microwave to prevent and reduce wax deposition in oil production
December 2024
Wax deposition in oil and gas pipelines and equipment is a fundamental challenge that can lead to a decrease in the performance and useful life of these systems. To address this issue, various methods...
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Study on the mechanism of gas-water two-phase flow in carbonate reservoirs at pore scale
December 2024
Carbonate gas reservoirs generally contain water, leading to uneven water invasion, explosive water flooding and other prominent phenomena, which is an important factor restricting the efficient development...
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On how water injection may induce fault reactivation and slippage: A numerical method
December 2024
During the water injection process in oil fields, the original stress equilibrium of faults might be disrupted by the large influx of fluids into the reservoir, resulting in movements. Fault slip may...
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Active control of the fluid pulse based on the FxLMS
December 2024
In petroleum engineering, the performance of drilling fluid is the key factor affecting the drilling success. Drilling fluid rheology can be measured by tube measurement. Fluid pulsation will cause...
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Research on corrosion defect identification and risk assessment of well control equipment based on a machine learning algorithm
December 2024
In recent years, the risk assessment of well control equipment has faced some problems, such as shallow defect detection depth, large identification error of corrosion defect type, inaccurate equipment...
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Novel phase field model of hydraulic fracture propagation in poroelastic media and numerical investigation of interaction between hydraulic fracture and natural fracture
December 2024
A novel numerical model is established to study the hydraulic fracture extend in poroelastic media with natural fractures based on the phase field method. In this new model, the poroelasticity parameter...
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Integrated reservoir characterization of the Permo-Triassic gas reservoirs in the Central Persian Gulf
December 2024
The upper Dalan and Kangan or Permian-Triassic carbonate formations in the central the Persian Gulf are considered as world's giant gas reservoirs. The primary purpose of this research is to model and...
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Inhibition of carbon steel corrosion in CO2-saturated 3.5 wt.% NaCl solution by vanillin chitosan oligosaccharide and synergistic effect of KI additive
December 2024
The chitosan oligosaccharide and vanillin are used as raw materials to synthesize non-toxic and water-soluble chitosan oligosaccharide derivative called vanillin chitosan oligosaccharide as a green...
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Influence of supercritical CO2 on the physical property of tight sandstone
September 2024
In low-pressure gas reservoirs, water-based fracture fluid is difficult to flowback, which is unfavorable for several tight sandstone gas reservoirs in the Sichuan Basin with low pressure and high permeability...
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An experimental study on optimizing parameters for sand consolidation with organic-inorganic silicate solutions
September 2024
Sand production along with the oil/gas detrimentally affects the oil production rate, downhole & subsurface facilities. Mechanical equipment and various chemicals like epoxy resin, furan resin, phenolic...
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Characteristics and genesis of shoal facies reservoir of the Lower Ordovician Tongzi Formation in southeastern Sichuan Basin, China
September 2024
The Lower Ordovician Tongzi Formation containing abundant shoal sediments is the most promising stratum for the petroleum exploration in the Sichuan Basin. However, the current studies mainly focus...
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A review of torsional vibration mitigation techniques using active control and machine learning strategies
September 2024
Drilling is one of the most challenging and expensive processes in hydrocarbon extraction and geothermal well development. Dysfunctions faced during drilling can increase the non-productive time (NPT)...
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New insights into the DPR mechanism of elastic energy released by polymer gel for enhanced oil recovery
September 2024
Polymer gel was widely used as water shutoff agent in mature oil fields. And the results of single-phase plugging experiments show that the plugging rate of the polymer gel to the oil phase is lower...
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Parameter sensitivity analysis of the axial stability for a marine flexible pipe
September 2024
Marine unbonded flexible pipes serve as the most essential equipment in offshore oil and gas exploration and exploitation. Axial compressive loads during installation or in service in the complex marine...
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Modelling and mechanical characteristics of PDC cutter-rock interaction by combining mixed fragmentation modes with dynamic rock strength
September 2024
Polycrystalline diamond compact (PDC) bit is one of the most widely used drill bits for improving the rate of penetration in deep oil and gas well and geothermal well. However, the dynamic rock fragmentation...
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Axial-torsional nonlinear vibration of bottom hole assembly in the air drilling technology
September 2024
The safety and efficiency of drilling engineering are greatly impeded by destructive vibrations of drill string in air drilling, such as stick-slip, bit-bounce and their coupled vibrations. To avoid...
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Experimental investigation of surfactant adsorption during EOR and soil pollution control processes: Influence of surfactant concentration, water salinity, and clay type
September 2024
Surfactant injection is a well-established method of chemical EOR processes. Surfactant adsorption into clay layers can prevent their proper performance and thus reduce the oil recovery factor. On the...
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