oil extraction mechanism in co2 flooding from rough surface

Oil extraction mechanism in CO2 flooding from rough

In this study, the behavioral mechanism of CO 2 extraction of the crude oil in the rough surface was investigated by adopting molecular dynamic simulations. As a ubiquitous phenomenon in the process of CO 2 flooding, the dynamic miscibility of the CO 2 /oil phase with different CO 2 injection pressures was mainly researched.

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Oil extraction mechanism in CO2 flooding from rough

Through molecular dynamic simulations, the mechanism of CO 2 extracting hydrocarbon in rough surface was investigated. In the present study, the entrance effect of CO 2 molecules and the destruction of the miscible zone were considered as the critical factors in the extraction process. Subsequently, seven assistants were added to explore the main factors of the stability of miscible zone.

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Oil extraction mechanism in CO2 flooding from rough

Oil extraction mechanism in CO2 flooding from rough surface: Molecular dynamics simulation Article in Applied Surface Science 494:80-86 · July 2019 with 127 Reads How we measure 'reads'

Molecular Simulations of Wetting of a Rough Surface by an

The goal of this work is to study via molecular simulations the wetting kinetics of a rough surface by an oily fluid. We use forward flux sampling to compute the wetting transition rate and elucidate the transition mechanism of a small droplet on a surface of nails. The nails provide the re-entrant geometry necessary to keep the droplet in the nonwetted, composite state. The effects of nail

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Effect of CO2 on the Interfacial and Transport Properties

We conducted molecular dynamics (MD) simulations to investigate the effect of supercritical carbon dioxide (sc-CO2) on the interfacial and transport properties of water–oil systems. The oil phase was resembled by employing different binary hydrocarbons (paraffin + aromatic), namely, benzene + hexane, benzene + octane, xylene + hexane, and xylene + octane. Furthermore, we added an asphaltene

Oil extraction mechanism in CO2 flooding from rough

Request PDF On Jul 1, 2019, Timing Fang and others published Oil extraction mechanism in CO2 flooding from rough surface: Molecular dynamics simulation

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Oil extraction mechanism in CO2 flooding from rough surface: Molecular dynamics simulation. TM Fang and YN Zhang and R Ma and YG Yan and CL Dai and J Zhang, APPLIED SURFACE SCIENCE, 494, 80-86 (2019). DOI: 10.1016/j.apsusc.2019.07.190 Through molecular dynamic simulations, the mechanism of CO2 extracting hydrocarbon in rough surface was investigated. In the present study,

Oil extraction mechanism in CO2 flooding from rough

Oil extraction mechanism in CO2 flooding from rough surface: Molecular dynamics simulation Applied Surface Science ( IF 5.155) Pub Date : 2019-07-21, DOI: 10.1016/j.apsusc.2019.07.190 Timing Fang, Yingnan Zhang, Rui Ma, Youguo Yan, Caili Dai, Jun Zhang

Is it Possible to Change Wettability of Hydrophilic

Wetting behavior of model rough surfaces made of hydrophilic square pillars is investigated. The hydrophilic pillars are equally spaced on hydrophilic surface. The surface roughnesses are altered by varying the pillar width and interpillar spacing. Wetting to dewetting transition is observed for these surfaces. This is one of the first accounts of observation from molecular simulations where

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Yingnan ZHANG China University of Petroleum, Qingdao

A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.

Timing FANG China University of Petroleum Beijing

A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.

Swelling/Extraction Test of a Small Sample Size for Phase

Request PDF On Apr 1, 2010, Jyun-Syung Tsau and others published Swelling/Extraction Test of a Small Sample Size for Phase Behavior Study Find, read and cite all the research you need on

Emad Roayaei's research works National Iranian South Oil

Reference: Oil extraction mechanism in CO2 flooding from rough surface: Molecular dynamics simulation Mechanistic investigation of bypassed-oil recovery during CO2 injection in

Oil detachment mechanism in CO2 flooding from silica

Oil detachment mechanism in CO 2 flooding from silica surface: However, the displacement of adsorbed oil involves a ternary system including solid surface, oil and CO 2 flooding phases, and the complex mutual interactions should be considered (Tran et al., 2012, Zheng et al., 2016). To the best of our knowledge, at molecular and atomic level, the temperature effect on the detachment of

Fundamentals of Carbon Dioxide-Enhanced Oil Recovery -EOR

CO 2-Enhanced Oil Recovery (EOR) Process General After discovery, an oilfield is initially developed and produced using primary recovery mechanisms in which natural reservoir energy—expansion of dissolved gases, change in rock volume,

Carbon Dioxide Flooding an overview ScienceDirect

Carbon dioxide flooding is commonly used to recover oil from reservoirs in which the initial pressure has been depleted through primary production and possibly water flooding (Orr et al., 1982). Water is injected into the reservoir until pressure is restored to a desired level, and then CO 2 is introduced into the reservoir through these same injection wells.

Extraction of petroleum Wikipedia

This form of recovery is used extensively to increase oil extraction in the San Joaquin Valley, which yields a very heavy oil, yet accounts for ten percent of the United States' oil extraction. [ citation needed ] Fire flooding (In-situ burning) is another form of TEOR, but instead of steam, some of the oil is burned to heat the surrounding oil.

What is the Difference between Primary, Secondary

Primary oil recovery refers to the process of extracting oil either via the natural rise of hydrocarbons to the surface of the earth or via pump jacks and other artificial lift devices. Since this technique only targets the oil, which is either susceptible to its release or accessible to the pump jack, this is very limited in its extraction potential. In fact, only around 5% 15% of the well

课题组博士生房体明的文章被Applied Surface Science接收

2019 年 07 月 21 日,课题组博士生房体明文章 “Oil Extraction Mechanism in CO 2 Flooding from Rough Surface: Molecular Dynamics Simulation” 被 Applied Surface Science (SCI 中科院分区 2 区,小类 1 区, IF=5.155 ,工程技术类 top 期刊) 录用。. 该工作通过分子动力学模拟,研究了 CO 2 抽提粗糙表面中碳氢化合物的微观机理。

Enhanced oil recovery Wikipedia

Enhanced oil recovery (abbreviated EOR), also called tertiary recovery, is the extraction of crude oil from an oil field that cannot be extracted otherwise. EOR can extract 30% to 60% or more of a reservoir's oil, compared to 20% to 40% using primary and secondary recovery. According to the US Department of Energy, carbon dioxide and water are injected along with one of three EOR techniques

The pros and cons of Enhanced Oil Recovery (EOR) for

One way to counteract this decrease in pressure is to inject a fluid — commonly CO2 — into the oil reservoir to force more oil to the surface. This process, called EOR, traps much of the CO2 used for oil extraction in the underground rock. Because the CO2 remains trapped in the rock, this method has been proposed as a carbon sequestration technique.

Investigation of Efficiency Improvement During CO2

The project used an X-ray CT scanner to image saturation profiles of flow patterns for direct measurement of bypassing mechanisms and to measure bypassed oil in order to optimize CO2 flooding efficiency. With this equipment, researchers have established the relationship between fracture aperture distribution and overburden pressures. They found that CO2 gravity drainage still plays an

An Introduction to Enhanced Oil Recovery Techniques

Carbon dioxide flooding works on the premise that by injecting CO2 into the reservoir, it dissolves in oil, the oil swells and the viscosity of any hydrocarbon will be reduced and hence, it will be easier to sweep to the production well. If an existing well has been designated suitable for CO2 flooding, the pressure

Carbon dioxide in enhanced oil recovery ScienceDirect

Use of Carbon Dioxide in Enhanced Oil Recovery. Science 224. 563- 569. Society of Petroleum Engineers (1984). The SI Metric System of Units and SPE METRIC STANDARD. Richardson, Texas, Society of Petroleum Engineers. Taber, J. J. (1988). Current Status of the Use of CO2 for Enhanced Oil Recovery. US Department of Energy and Argonne National Laboratories Recovery and Use of Waste CO2

Oil sands Wikipedia

The Athabasca oil sands lie along the Athabasca River and are the largest natural bitumen deposit in the world, containing about 80% of the Alberta total, and the only one suitable for surface mining, according to a 2009 Canadian Association of Petroleum Producers publication. With modern unconventional oil production technology, at least 10% of these deposits, or about 170 Gbbl (27 × 10 ^ 9

Enhanced Oil Recovery (EOR) Definition Investopedia

Enhanced Oil Recovery EOR: Enhanced oil recovery (EOR) is the process of obtaining stranded oil not recovered from an oil reservoir through certain extraction

Waterflooding PetroWiki

Waterflooding is the use of water injection to increase the production from oil reservoirs. Use of water to increase oil production is known as "secondary recovery" and typically follows "primary production," which uses the reservoir’s natural energy (fluid and rock expansion, solution-gas drive, gravity drainage, and aquifer influx) to produce oil.

Recovery rates, enhanced oil recovery and technological

Enhanced oil recovery (EOR) involves injecting a fluid into an oil reservoir that increases oil recovery over that which would be achieved from just pressure maintenance by water or gas injection. For lighter oils, these processes include miscible gas injection 6,7], water alternating gas (WAG) injection,polymer flooding,flow diversion via polymer gels and the use of surfactants . For more

NMR-MRI Characterization of Low-Salinity Water

Understanding the oil extraction processes at the laboratory scale is critical for designing and implementing the injection fluids to predict the enhanced oil recovery performance at the reservoir scale. Benchtop low-field nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) is a powerful technique to characterize confined fluids in complex rock pore throat networks. The

Waterflooding PetroWiki

Waterflooding is the use of water injection to increase the production from oil reservoirs. Use of water to increase oil production is known as "secondary recovery" and typically follows "primary production," which uses the reservoir’s natural energy (fluid and rock expansion, solution-gas drive, gravity drainage, and aquifer influx) to produce oil.

Thermal Oil Extraction

Thermal Oil Extraction Rustem Zaydullin November 12, 2013 Submitted as coursework for PH240, Stanford University, Fall 2013 Introduction. Fig. 1: Typical Heavy-oil viscosity vs temperature plot. About 70% of all the liquid oil of all types estimated today falls into the category of heavy-oils (20 API gravity). Among these resources, Canada and Venezuela together account for about 55-65%. [1

Enhanced Oil Recovery Techniques and Nitrogen

Oil displacement may be initiated by a number of mechanisms due to injection of CO2 into oil reservoirs. Carbon dioxide is not usually miscible with reservoir oil upon initial contact, however it may create a miscible front like the lean gas process. So, there are two major types of CO2 floods; miscible flood in which the gas is injected at or above the MMP, and immiscible flood in which

Steam injection (oil industry) Wikipedia

In a steam flood, sometimes known as a steam drive, some wells are used as steam injection wells and other wells are used for oil production. Two mechanisms are at work to improve the amount of oil recovered. The first is to heat the oil to higher temperatures and to thereby decrease its viscosity so that it more easily flows through the formation toward the producing wells. A second mechanism

Mechanism and modelling of CO2 corrosion on

1. Introduction. Carbon dioxide flooding is one of the most effective technologies in modern oil extraction; it makes a positive contribution to the geological storage of carbon and has been rapidly developed [1,2].However, CO 2 produces carbonic acid under suitable pressure and humidity conditions in the well. This is highly corrosive to cement and oil casings, causing severe corrosion to

EOR Screening Criteria Revisited- Part 1 Introduction to

ters, it is instructive to consider the oil-displacement mechanisms for the EOR methods. Table 2 shows that there are three main mecha- nisms for displacing additional oil with an injected fluid (1) solvent extraction to achieve (or approach) miscibility, interfacial-tension (IK) reduction, and (3) viscosity change of either the oil or water,

Microfluidic and nanofluidic phase behaviour

for enhanced oil recovery, covering visualization technologies, and modelling of a suite of hydrocarbon recovery processes, e.g. water/surfactant flooding, polymer flooding, nanoparticle flooding, foam flooding, microbial enhanced oil recovery, heavy oil extraction and carbon sequestration.7 Nanoscale phase characterization.

Oil Recovery Mechanisms During Sequential Injection

Different recovery mechanisms are reported for increasing the oil recovery during chelating agent flooding. The aims of this work are to identify the possible recovery mechanisms during chelating agent flooding in carbonate reservoirs and to investigate the in situ CO 2 generation as a potential recovery mechanism during the injection of chelating agent solutions into carbonate reservoirs.

The Title of Writing and Year Isolated mechanism study on

The Title of Writing and Year Isolated mechanism study on in situ CO2 EOR And. The title of writing and year isolated mechanism. School Islamic University of Riau; Course Title TEKNIK PER 153210; Uploaded By DoctorLobsterPerson22. Pages 10 This preview shows page 8 10 out of 10 pages. 8. The Title of Writing and Year

Enhanced Recovery NoDoC, Cost Engineering Data

Adding oil recovery methods adds to the cost of oil — in the case of CO2 typically between 0.5-8.0 US$ per tonne of CO2. The increased extraction of oil on the other hand, is an economic benefit with the revenue depending on prevailing oil prices. Onshore EOR has paid in the range of a net 10-16 US$ per tonne of CO2 injected for oil prices of 15-20 US$/barrel. Prevailing prices depend on



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