Estimation of the minimum miscibility pressure for CO2–crude-oil systems by molecular dynamics simulation
Available online 15 August 2022
CO2 injection is an effective enhanced oil recovery technique for energy security with the benefits of carbon neutrality. To reach the maximum oil recovery, the miscible condition between CO2 and oil...
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Performance evaluation of nanosilica derived from agro-waste as lost circulation agent in water-based mud
Available online 4 August 2022
Seepage or loss of the mix-water from the drilling muds into the porous and permeable formations is a common problem during drilling operation. The drilling mud design requires a good knowledge of sealing...
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Review of application of artificial intelligence techniques in petroleum operations
Available online 16 July 2022
In the last few years, the use of artificial intelligence (AI) and machine learning (ML) techniques have received considerable notice as trending technologies in the petroleum industry. The utilization...
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Speciation, source identification, and risk assessments of potentially toxic metals in oil-impacted soils around petroleum products retailing stations
Available online 15 July 2022
The present study was carried out to investigate the speciation, source identification, and risk assessment of potentially toxic elements (As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) in soils around petroleum...
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Microfacies analysis and depositional environment of the Upper Devonian Dankovo-Lebedyansky sediments, Tatarstan, Volga-Ural Basin, Russia
Available online 15 July 2022
The Upper Devonian, Middle Famennian Dankovo-Lebedyansky sediments in Southeast Tatarstan territory are a carbonate sequence composed of limestone and dolomite, which is important hydrocarbon reservoir...
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Predicting the effects of selected reservoir petrophysical properties on bottomhole pressure via three computational intelligence techniques
Available online 7 July 2022
This study investigates the effects of selected petrophysical properties on predicting flowing well bottomhole pressure. To efficiently situate the essence of this investigation, genetic, imperialist...
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Effect of operating pressure on the performance of THAI-CAPRI in situ combustion and in situ catalytic process for simultaneous thermal and catalytic upgrading of heavy oils and bitumen
June 2022
According to the analysis of the 2020 estimates of the International Energy Agency (2020), the world will require up to 770 billion barrels of oil from now to 2040. However, based on the British Petroleum...
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Prediction of fold-of-increase in productivity index post limited entry fracturing using artificial neural network
June 2022
Unified Fracture Design (UFD) bridges the gap between practices and theory in the hydraulic fracturing industry. It represents a technique to design hydraulic fracturing treatment with a particular...
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Review of wax sedimentations prediction models for crude-oil transportation pipelines
June 2022
Wax sedimentation in pipelines is a severe crude oil production and transportation challenge. Pipeline surface roughness is experienced at the early stages of the problem; with time, the effective pipe...
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Chemical speciation, bioavailability and risk assessment of potentially toxic metals in soils around petroleum product marketing company as environmental degradation indicators
June 2022
The study aims at investigating chemical speciation, bioavailability and risk assessment of some selected metals in soils around refined petroleum depot using the concentrations of the metals as variables...
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Investigation of flow behavior of crude oils with emphasis to upper Assam Basin, India
June 2022
This paper attempts to investigate the viscoelastic nature of eight Crude Oil (CO) samples from the Upper Assam Basin, India. Viscoelasticity was studied using Dynamic Mechanical Analysis (DMA) where...
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NMR chemical shifts of carbon atoms and characteristic shift ranges in the oil sample
June 2022
Application of high resolution 13C nuclear magnetic resonance (NMR) spectroscopy to characterize crude oil was demonstrated. The chemical shifts of 13C NMR functional groups that determine the composition...
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A minimalist approach for detecting sensor abnormality in oil and gas platforms
June 2022
Compressors play an important role in day-to-day operation in most oil and gas platforms, especially in the case for maintaining gas pressure in transportation pipe. Its complex problem to detect the...
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An assessment of trace metal pollution indicators in soils around oil well clusters
June 2022
Due to the metallic ion constituents of crude oil, environmental levels of toxic metals are often exacerbated when oil is spilt. Biseni community plays host to numerous oil production companies in Bayelsa...
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Influence of wellhead pressure and water cut in the optimization of oil production from gas lifted wells
June 2022
The worldwide increase in energy demand necessitates the development and optimization of marginal oil fields for sustenance. In this regard, effective and economic production of fluids are heavily relied...
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Hybrid surfactant-nanoparticles assisted CO2 foam flooding for improved foam stability: A review of principles and applications
June 2022
Miscible carbon dioxide (CO2) flooding is a well-established and promising enhanced oil recovery (EOR) technique whereby residual oil is recovered by mixing with injected CO2 gas. However, CO2, being...
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A robust deep structured prediction model for petroleum reservoir characterization using pressure transient test data
June 2022
A robust deep learning model consisting of long short-term memory and fully connected neural networks has been proposed to automatically interpret homogeneous petroleum reservoirs having infinite, no...
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Application of machine learning algorithms to predict tubing pressure in intermittent gas lift wells
June 2022
Tubing pressure at gas injection depth in intermittent wells is one of the most critical parameters for production engineers to evaluate the performance of the system. However, monitoring of the tubing...
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Machine learning classification approach for formation delineation at the basin-scale
June 2022
Machine learning and artificial intelligence approaches have rapidly gained popularity for use in many subsurface energy applications. They are seen as novel methods that may enhance existing capabilities,...
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Effects of nanoparticles, polymer and accelerator concentrations, and salinity on gelation behavior of polymer gel systems for water shut-off jobs in oil reservoirs
Available online 17 June 2022
Excess water production is one of the crucial complications in the oil industry, leading to a rapid decline in oil production. To overcome this problem, different polymer gels are used to block the...
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Studying the direction of hydraulic fracture in carbonate reservoirs: Using machine learning to determine reservoir pressure
Available online 11 June 2022
Hydraulic fracturing (HF) is an effective way to intensify oil production, which is currently widely used in various conditions, including complex carbonate reservoirs. In the conditions of the field...
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Structure modeling of activated carbons used for simulating methane adsorption – A review
Available online 11 June 2022
Activated carbons (ACs) are highly porous materials with a broad range of applications in industry such as gas storage, water and air purification, gas separation, and catalysis. The microstructure...
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Numerical simulation investigations of the applicability of THAI in situ combustion process in heavy oil reservoirs underlain by bottom water
Available online 10 June 2022
The presence of a bottom water (BW) layer in heavy oil reservoirs can present substantial problems for efficient oil recovery for all recovery techniques. Hence, it is necessary to know how particular...
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Determination of total organic carbon content using Passey's method in coals of the central Kalahari Karoo Basin, Botswana
Available online 10 June 2022
This paper focuses on determining total organic carbon (TOC) from boreholes in the Kalahari Basin, Botswana, using Passey's method. The Kalahari Karoo basin is one of several basins in southern Africa...
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