Production of oil & gas depends upon the recoverable amount of hydrocarbon existing beneath the underlying reservoir. Reservoir recovery factor provides of the production potential of 'proven reservoirs' which helps the planning of field development…
Production of oil & gas depends upon the recoverable amount of hydrocarbon existing beneath the underlying reservoir. Reservoir recovery factor provides of the production potential of 'proven reservoirs' which helps the planning of field development…
Production of oil & gas depends upon the recoverable amount of hydrocarbon existing beneath the underlying reservoir. Reservoir recovery factor provides of the production potential of 'proven reservoirs' which helps the planning of field development…
Large gas fields play an important role in natural gas industry. Recovery rate, plateau duration, recovery at the end of plateau, decline rate and recovery factor are the key development indexes for dynamic performance analysis and development…
Large gas fields play an important role in natural gas industry. Recovery rate, plateau duration, recovery at the end of plateau, decline rate and recovery factor are the key development indexes for dynamic performance analysis and development…
To further improve the utilization of millimeter-scale polymer gel particles (PPGs) in the heterogeneous oil reservoir, it is necessary to investigate its mechanical state of transportation in porous medium and fracture. In this paper, for…
The high viscosity and low fluidity of heavy crude oil hinder its sorption by conventional porous sorbents, so the efficient clean-up of such heavy crude oil spills is challenging. Recently, Joule heating has been emerging as a new tool to reduce the…
In recent years, with the rapid growth of natural gas (NG) consumption and foreign dependency in China, frequent supply shortages have threatened supply security. From the perspective of energy resilience, this paper aims to examine the recovery…
Natural gas is generally transported with high pressure, and most of the gas pressure is above 10MPa, which will be 0.4MPa after the vacuum treatment at pressure regulating station. So there is huge pressure energy that can be recovered. The research…
District cooling systems (DCSs) are networks able to distribute thermal energy, usually as chilled water, from a central source to industrial, commercial, and residential consumers, to be used for space cooling/dehumidification. As cooling demand…
Crude oil rail loadings are objects of considerable hydrocarbon emissions. A mathematical model of the process of oil vapor displacement during the loading of rail tanks is proposed in this article. This model makes it possible to determine…
Underground hydrogen storage has been recognized as a key technology for storing enormous amounts of hydrogen, thus aiding in the industrial-scale application of a hydrogen economy. However, underground hydrogen storage is only poorly understood,…
As we all know, energy helps promote Chinas social and economic growth and the improvement of peoples living standards. Therefore, the oil and gas industry has obtained important development opportunities. However, oil and gas resources are…
The application of non-hydrocarbon gas injection for enhanced gas and condensate recovery (EGCR) is still in a developmental stage as the mixing/interaction between the injected gas and resident reservoir fluid is yet to be extensively understood and…
CO2-based enhanced gas recovery (EGR) is an appealing method with the dual benefit of improving recovery from mature gas reservoirs and storing CO2 in the subsurface, thereby reducing net emissions. However, CO2 injection for EGR has the drawback of…
Conversion of olefin-rich side streams of petroleum distillate cracking operations, pyrolysis gasoline (pygas), to hydrocarbon resins (HRs) represents a promising technology to upgrade the pygas byproduct and facilitate pygas valorization. Several…
In this study, field scale reservoir simulations and production history matching are performed to investigate CO2 storage and CO2 heat mining potential in the high-temperature Arun gas condensate reservoir in Indonesia. Our study shows that CO2…
The objective of this research is to examine the link between total petroleum systems (TPS), geomodeling and reserves determination with a view to improve production forecasting, and to increase petroleum rates and recoveries while keeping an eye on…
In recent years, the greenhouse gas control has been a hot issue. A solution of injecting supercritical CO2 (scCO2) in Longmaxi shale gas formation (in Southwest China) is proposed in this study. To evaluate the feasibility of this method that…
The industrial development of Xinjiang is facing serious carbon emissions and water shortage problems in this region. It is urgent to find a sustainable development way. CO2 geological storage combined with enhanced water recovery (CO2-EWR) is a…
CO2 geological storage and utilization (CGUS) is an economical and effective method to reduce CO2 emissions and improve oil and gas reservoir recovery, while generating additional economic benefits. In recent years, due to the rapid development of…
Sodium dodecyl benzene sulfonate (SDBS) was used as a surfactant to prepare microemulsion for emergency treatment of crude oil contaminated soil and recovery of crude oil. Comparison between the original and the recovered crude oil and soil samples…
The extraction process of crude oil by supercritical CO2 was simulated in a high pressure extractor at 40, 50, 60 and 70 C, and at 20, 40 and 60 MPa in order to investigate the effect of temperature on oil recovery. The total recovery of oil…
Hydrogen gas as a clean and renewable kind of energy can be considered to supply electricity demand during peak usage times. Actually, excess electricity cannot be stored in great quantities, but it can be converted to hydrogen, which can be stored…
In this paper, we evaluate opportunities for CO2 capture and storage (CCS) within a study area of radius 1,000 km from Singapore. Results show that stationary CO2 emission from the study area is 391 Mtpa. There is mid CO2 storage resource of 0.5 Gt…
The existence of back pressure will cause shock wave in the Laval nozzle of the supersonic separator, which will lead to the condensed droplets to evaporate and reduce the separation efficiency of the separator. It is of great significance to…
The yield behavior of water-in-oil (W/O) waxy crude oil emulsion cementitious system was studied experimentally under two loading modes of constant and linear increase shear stress. Based on the yield strain and shear rate of the crude oil emulsion…
Underground oil storage is a viable technique to increase energy security in the context of global concern for oil demand and supply. When the economic conditions permit, it makes sense to store oil in water-flooded, water-wet sandstone reservoirs…
This article assesses the impact of energy recovery from digestate on the economics of biomethane produced from the organic fraction of municipal solid waste. Six waste-to-energy routes are investigated and assumed to be deployed in the regional…
Hydrogen storage in underground structures is an appropriate way for keeping the balance between the energy production and consumption. Indeed, excessive electrical energy can be converted, through electrolysis, to chemical energy of hydrogen…
We investigated the sediment properties and gas hydrate saturations in pressure-cores recovered during the National Gas Hydrate Program Expedition 02 (NGHP-02) in Areas B, C, and E of the KrishnaGodavari Basin (KG Basin) off the eastern margin of…
Field-scale reservoir simulation of In-Situ Combustion (ISC) process has been a grey area worldwide, due to the complexities of reactions involved and availability of kinetic model that can cover every aspects of an ISC process properly i.e.…
The demand for crude oil is continuously increasing every year, and the discovery of new oil reservoirs is declining. Crude oil recovery from the mature and developed fields is somewhere between 20 and 40% of the original oil in place. Therefore, it…
Shengli Oilfield is rich in heavy oil resources, and steam stimulation is the main development method. Most of the reservoirs face problems such as low recovery and serious steam enthalpy. The study of flow field distribution law has become the focus…
A comprehensive study is presented on the interfacial behavior of all participating phases in a scenario of using carbon dioxide (CO2) to enhance the recovery of natural gas in tight sandstone reservoirs. Natural gas condensate is contacted with CO2…
Injection of CO2 into shale reservoirs to enhance gas recovery and simultaneously sequester greenhouse gases is a potential contributor towards the carbon-neutral target. It offers a low-carbon, low-cost, low-waste and large-scale solution during the…
The use of foam drainage gas production in natural gas wells can quickly recover the accumulated water in the wellbore, reduce the bottom hole pressure, and increase the production of gas wells.Due to the poor stability of the foam in the wellbore,…
Oily sludge is a hazardous waste, so its improper disposal not only pollutes the environment but also endangers human health. In this study, following the principle of resource recycling, reduction and harmless treatment of oil sludge, we used…
Heavy oil reservoirs remain challenging for surfactant-based EOR. In particular, selecting fine-tuned and cost effective chemical formulations requires extensive laboratory work and a solid methodology. This paper reports a laboratory feasibility…
Nitrogen is a component that often needs to be removed from natural gas. A dual-reflux pressure swing adsorption (DR PSA) technology with activated carbon as the adsorbent was explored for N2 rejection from a binary mixture of 75 mol% CH4 and 25 mol%…
Crude-oil recovery processes with a voidage replacement ratio (VRR = injected volume/produced volume) less than 1 combine solution gas drive mechanisms and viscous crude-oil displacement. Previous laboratory and field studies have shown that a VRR…
The domestic and abroad experience of production test of natural gas hydrate shows that the problem of sand production is a key factor restricting the effective development of hydrate resources. From the perspective of the flow in porous media of…
The universal features of the gas wells in Sulige gas field are low pressure, low production rate, and the liquid-carrying capabilities of the wells that are poor. Accompanied with the gas well entering the process of middle and late life span, the…
The recovery factor of gas reservoirs is highly dependent on various factors such as the type of drive mechanism, the initial reservoir pressure and the abandonment pressure. A higher attention is required to enhance gas recovery from reservoirs…
The analyzer, based on tunable diode laser absorption spectroscopy (TDLAS), was developed for the measurement of carbon dioxide in the natural gas liquids (NGLs) recovery process. Depending on the required concentration range of carbon dioxide and…
In recent years, relevant authorities have successively issued strict control indicators on the tail gas emission of sulfur recovery facilities, so standard tail gas emission from the sulfur recovery facilities in natural gas purification plants is…
In order to study the distribution and flow pattern of foam in the wellbore during the process of foam drainage and gas recovery, A coupled model of gas and foam flow in wellbore was established. The distribution characteristics of foam in the…
Pressure energy recovery is one of the main advantages of a supersonic separator. However, the pressure energy recovery process can cause droplet evaporation in the divergent section, which will reduce the liquefaction efficiency of the nozzle. This…
The Sulige Gas Field in the Ordos Basin ranks the first in China in terms of reserve scale and annual gas production of tight sandstone gas reservoirs. In order to further extend the stable production time and enhance the recovery factor of tight…
Natural Gas Liquid (NGL) is the liquid product obtained from the bottom of the demethanizer in a gas processing plant. It consists of ethane, propane, butanes and natural gasoline (heavier hydrocarbons). Here in USA, the gas processors in the…