Deposits of tight high viscosity heavy and waxy oil are becoming increasingly important in the world economy. They are also of particular importance in Russia, where the fields of easy accessible oil are practically depleted, and the newly discovered…
It is shown that associated petroleum gas (APG) and the product of intrastratal transformation of air (by high-pressure air injection technology) are suitable for oil displacement from low-permeability, high-temperature light oil reservoirs. It was…
In this study, 20 diesel fractions were obtained by co-hydroprocessing blends of low-grade canola oil and Canadian oil sand bitumen-derived heavy vacuum gas oil (HVGO) at different canola oil/HVGO blending ratios, reaction temperatures and pressures,…
Resins of Usa oil and their four fractions obtained by column chromatography have been studied. Changes in the structural parameters of the resins and the product composition for thermolysis of the fractions at temperatures of 200245 and 450495C have…
1 Scope This document specifies a method for the determination of the boiling range distribution of petroleum products by capillary gas chromatography using flame ionization detection. The standard is applicable to materials having a vapour pressure…
Oil and condensate reservoirs frequently experienced later gas charging and cap gas leakage. The influences of these two processes on diamondoid concentrations and compositions are not well documented. To investigate these issues, quantitative GC,…
To realize the fast and accurate determination of coal-based crude oils, gas chromatography combined with mass spectrometry and flame ionization detection is employed to assist in qualitative and quantitative analysis. In addition, material balance…
During an in situ combustion (ISC) process, low-temperature oxidation (LTO) is of vital significance for the follow-up oxidation reactions and oil recovery. Herein, this work is intended to carry out in-depth investigations regarding LTO of heavy…
Interfacial tension (IFT) between oil and brine is key to determine the Capillary Number, which governs capillary forces in the porous medium. As a result, changes in IFT affect the displacement efficiency and the residual oil saturation having…
The ability of geochemistry techniques in reservoir-continuity studies has already been proved. Most of the traditional methods mainly involve analyzing nonpolar components of crude oil and overlooking polar components. Despite valuable information…
In-situ combustion is considered as one of the most effective ways to enhance recovery of heavy crude oils and bitumens. The oxygen from injected air reacts with the heavy components of the crude oil, forming a hot zone in which the cracking and…
Fluid immobilizations in tight formations augment the importance of CO2 molecular diffusions in the processes of geological carbon utilization and storage. This study, for the first time, investigates the CO2 diffusions in unconventional tight…
Abstract: Specific features of the distribution of vanadium and nickel duringfractionation of heavy oil resins were examined using the example of heavysulfurous oils from the Permian and Carboniferous deposits of the Volga-Uralsoil and gas basin…
Nowadays, most of the worlds energy consumption is from fossil fuels. One of these fossil fuels is natural gas condensate which consists of various hydrocarbon components and could be used as the main fuel resource. However, these condensates contain…
Minimum miscibility pressures (MMPs) were measured at reservoir temperatures using a capillary-rise vanishing interfacial tension (VIT) technique for four crude oils collected from different formations in the deep/hot Bakken Petroleum System and the…
A systematic study into the origin and potential formation processes of condensates in the Pinghu Slope Belt of the Xihu Depression, East China Sea Basin, was conducted using fluid inclusion analysis, petroleum geochemistry, and rock gold-tube…
Gas turbines are often the master pieces of the utilities that power Oil and Gas (O&G) installations as they most often operate in off-grid mode and must reliably deliver the electric power and the steam streams required by all the…
We established the generation and migration processes as well as the influence of secondary processes of oil and natural gas accumulated in Lower Cretaceous-Oligocene strata of the western part of the Ukrainian Outer Carpathians based on the results…
Evaporative fractionation is a complex phenomenon associated with the separation of gas from oil in the subsurface, generally involving migration fractionation and gas invasion. The concentrations and distributions of diamondoid hydrocarbons in…
Abstract: General features of the distribution of vanadium and nickel in the products of two-step solvent fractionation of asphaltenes have been using the exampley of heavy crude oils from various fields of the VolgaUrals oil-and-gas basin (Russia).…
Oil mixing and absence of source-rock samples make it difficult to identify the hydrocarbon migration routes in a petroleum system. We provide a case study in the northwestern Junggar Basin to show that combined geochemical and phase fractionation…
During an in situ combustion (ISC) process, low-temperature oxidation (LTO) is of vital significance for the follow-up oxidation reactions and oil recovery. Herein, this work is intended to carry out in-depth investigations regarding LTO of heavy…
Air injection techniques have been widely applied in oil fields, but the associated safety issue of natural gas (NG) and oil explosion has been of great concern. In this study, explosion experiments of different NG compositions were conducted under…
Although the Junggar Basin is one of the four largest petroliferous basins in China, the proved reserves of natural gas is primarily concentrated in the eastern and southern parts of the basin and only account for 9.0% of the total resources. In this…
Air injection techniques have been widely applied in oil fields, but the associated safety issue of natural gas (NG) and oil explosion has been of great concern. In this study, explosion experiments of different NG compositions were conducted under…
Evaporative fractionation is a complex phenomenon associated with the separation of gas from oil in the subsurface, generally involving migration fractionation and gas invasion. The concentrations and distributions of diamondoid hydrocarbons in…
Fluid immobilizations in tight formations augment the importance of CO2 molecular diffusions in the processes of geological carbon utilization and storage. This study, for the first time, investigates the CO2 diffusions in unconventional tight…