Evaluation on the anisotropic brittleness index of shale rock using geophysical logging
December 2023
The brittleness index plays a significant role in the hydraulic fracturing design and wellbore stability analysis of shale reservoirs. Various brittleness indices have been proposed to characterize...
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Forecasting oil production in unconventional reservoirs using long short term memory network coupled support vector regression method: A case study
December 2023
Production prediction is crucial for the recovery of hydrocarbon resources. However, accurate and rapid production forecasting remains challenging for unconventional reservoirs due to the complexity...
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Lessons learned from coreflood experiments with surfactant-polymer and alkali-surfactant-polymer for enhanced oil recovery
December 2023
A review of coreflood experiments for chemically enhanced oil recovery (EOR) is presented in this paper, particularly surfactant-polymer (SP) and alkali-surfactant-polymer (ASP) processes. The objective...
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An adaptive neuro-fuzzy inference system white-box model for real-time multiphase flowing bottom-hole pressure prediction in wellbores
December 2023
The majority of published empirical correlations and mechanistic models are unable to provide accurate flowing bottom-hole pressure (FBHP) predictions when real-time field well data are used. This is...
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Mechanical behavior of salt rocks: A geomechanical model
December 2023
The geomechanical behavior of salt rocks is a significant concern during drilling and development operations in some hydrocarbon reservoirs and underground gas storage sites. In this study, the static...
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Development and application of guar gum crosslinked gel with adjustable gelation time for total loss treatment
December 2023
To remediate the problem of severe or total losses, and meet the requirements of borehole plugging and pumping at different well depths, a novel crosslinked polymer gel (named HPG/Zr gel) with controlled...
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Calculating densities and viscosities of natural gas with a high content of C2+ to predict two-phase liquid-gas flow pattern
December 2023
The paper is devoted to the two-phase flow simulation. The gas-condensate mixture flow in a horizontal pipe under high pressure is considered. The influence of the equation of state (EOS) choice for...
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Simulation of directional propagation of hydraulic fractures induced by slotting based on discrete element method
December 2023
Hydraulic fracturing (HF) technology can safely and efficiently increase the permeability of coal seam, which is conducive to CBM exploration and prevent coal and gas outburst. However, conventional...
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An experimental study on optimizing parameters for sand consolidation with organic-inorganic silicate solutions
Available online 28 December 2023
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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Low-temperature oxidation characteristics and reaction pathways of crude oil within tight shale during air injection
Available online 27 December 2023
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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Paleo-uplift forced regional sedimentary evolution: A case study of the Late Triassic in the southeastern Sichuan Basin, South China
Available online 14 December 2023
The sedimentary environment of the Upper Triassic in the southeastern Sichuan Basin is obviously controlled by Luzhou paleo-uplift (LPU). However, the influence of paleo-uplift on the sedimentary patterns...
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Progress in the application of graphene material in oilfield chemistry: A review
Available online 11 December 2023
Graphene is a single atom thick crystal composed of carbon atoms. It is the lightest, thinnest, strongest material that conducts heat and electricity well heretofore. In terms of application, by introducing...
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Fracturing-flooding technology for low permeability reservoirs: A review
Available online 4 December 2023
The development of low-permeability oil and gas resources presents a significant challenge to traditional development methods. To address the problem of “no injection and no production” in low -permeability...
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Production performance analysis of a continental shale oil reservoir in Bohai Bay basin
Available online 29 November 2023
Due to the extremely low permeability of shale formations, the combination of horizontal well and volume fracturing has been proposed as an effective technique to improve the production of Dagang continental...
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A thermo-mechanical simulation for the stability analysis of a horizontal wellbore in underground coal gasification
Available online 29 November 2023
The stability analysis of horizontal wells is essential for a successful underground coal gasification (UCG) operation. In this paper, a new 3D coupled thermo-mechanical numerical modeling is proposed...
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Enhanced heavy and extra heavy oil recovery: Current status and new trends
Available online 31 October 2023
Due to the increased demand for energy resources these days, especially due to the Russian-Ukrainian war, the focus of the major countries is turning strongly towards improving oil production, especially...
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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
Available online 31 October 2023
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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Parameter sensitivity analysis of the axial stability for a marine flexible pipe
Available online 6 October 2023
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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Study on the supercritical phase behavior of Yaha condensate gas reservoir in Tarim Basin
September 2023
Yaha condensate gas reservoir is condensate gas reservoir developed by gas injection in the Tarim Basin. The practice of gas injection in condensate gas reservoir shows that the key to improve gas injection...
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A new robust predictive model for lost circulation rate using convolutional neural network: A case study from Marun Oilfield
September 2023
A major cause of some of serious issues encountered in a drilling project, including wellbore instability, formation damage, and drilling string stuck – which are known to increase non-productive time...
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Investigation of low water recovery based on gas-water two-phase low-velocity Non-Darcy flow model for hydraulically fractured horizontal wells in shale
September 2023
Various mechanisms are employed to interpret the low water recovery during the shale-gas production period, such as extra-trapped water in the fracture network, water imbibition due to osmotic pressure...
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Experimental study on nanoparticles-assisted low-salinity water for enhanced oil recovery in asphaltenic oil reservoirs
September 2023
The purpose of this research is to look into the augmentation of silica nanoparticles (NPs) with low salinity (LowSal) brine for EOR. A series of analyses, including oil/water interfacial tension (IFT)...
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Sealing performance analysis of rubber core of annular BOP: FEM simulation and optimization to prevent the SBZ
September 2023
The present work studies the influence of oil pipe joint passing through annular blowout preventer (BOP) on its sealing performance in high pressure gas wells under snubbing service. When the oil pipe...
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Simulation studies on optimizing oil productivity in oil rim reservoirs under gas cap blow down production strategy
September 2023
Gas cap blow down strategy is normally deployed for Ultra-thin oil rim reservoirs with huge gas caps due to extremely high gas oil ratios from wells in such reservoirs. The current state leads to loss...
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