Impact of asphaltenes and clay interaction on in-situ combustion performance

Ismail, Norasyikin; Hasçakir, Berna

doi:10.1016/j.fuel.2020.117358

Cited by 26 publications

(15 citation statements)

References 50 publications

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“…Authors have reported the impact of the presence of asphaltenes and clays in the ISC process. , Typical clays in the FPO are reported to be kaolinite, illite, and smectite …”

Section: Discussionmentioning

confidence: 99%

Workflow of the In Situ Combustion EOR Method in Venezuela: Challenges and Opportunities

Rodriguez¹,

Llamedo

Belhaj

et al. 2023

ACS Omega

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In situ combustion (ISC) is one of the oldest thermal enhanced oil recovery methods to have been applied in Venezuela to increase the production of highly viscous crude oils, with a first field application in 1959 in the Tia Juana Field-Lake Maracaibo Basin. This method, which is characterized by high energy efficiency, consists of injecting air into the reservoir where exothermic oxidation reactions initiate to increase the mobility of the oil. Compared to other thermal enhanced oil recovery methods such as steam injection, ISC has a lower environmental impact in terms of water and fuel consumption, and emission of gases as the produced gases can be reinjected or stored. Several ISC projects have been carried out in Venezuela in Tia Juana, Morichal, Miga, and Melones fields. Although the technical results have been satisfactory in terms of viscosity reduction and improved crude oil properties (such as °API), other important aspects of project evaluations have not been convincing due to the following factors: high temperatures in producing wells, acid gases management, generation of complex emulsions, corrosion, and high CAPEX and OPEX costs. Nevertheless, additional research work has been conducted on process optimization, using catalysts and hydrogen donors, to better address these other factors. Due to the great need to increase hydrocarbon production in Venezuela and to the advantages of ISC as an upgrading technique where low-carbon fuels and hydrogen as byproducts are generated, this paper presents a revisit of ISC projects in Venezuela from R&D technical aspects to field applications. It seeks to identify the main insights regarding the success and failure of the evaluated projects and make substantiated recommendations in the case of future applications of this technology.

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“…Authors have reported the impact of the presence of asphaltenes and clays in the ISC process. , Typical clays in the FPO are reported to be kaolinite, illite, and smectite …”

Section: Discussionmentioning

confidence: 99%

Workflow of the In Situ Combustion EOR Method in Venezuela: Challenges and Opportunities

Rodriguez¹,

Llamedo

Belhaj

et al. 2023

ACS Omega

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“…This method can also apply to physical methods as marine oil spill remediation. [105][106][107] Thermal remediation methods, such as in situ burning, [108][109][110] are a simple and rapid means of remediation that requires minimal specialized equipment to remove a great deal of spilled oil efficiently. The effectiveness of this method depends on the condition of the wind and quality of the oil; it is effective when there is no wind, and the spills consists of fresh oils or light refined products, which quickly burn without endangering marine life.…”

Section: Remediation Technologies For Oil Spillsmentioning

confidence: 99%

A Role for Newly Developed Sorbents in Remediating Large‐Scale Oil Spills: Reviewing Recent Advances and Beyond

Kim

Zhang

Chung

et al. 2021

Advanced Sustainable Systems

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The conservation of ocean and freshwater have been crucial issues over the past decades, and oil/water separation is a well‐known technology to restore polluted water systems. In the meantime, oil sorbents serve as a promising means of achieving water conservation to recover from oil spills, which require a multi‐factorial approach to review high selectivity, capacity, and rate of oil recovery. However, reusability is a critical component to consider in incidents with large‐scale spills. With the development of sorbent technology, some studies have progressed to explore surface engineering and material design for high oil sorption capacity and durability. Thus, this systemic review, a summary of sorbent developments, serves as a guide to understanding practical applications that can apply to large‐scale oil spills and recognize remaining issues. In this review, the oil weathering process and oil sorption mechanisms in relation to the characteristics of target pollutants are introduced. Then, this comprehensive review focuses on materials in advanced sorbents. These materials have properties including, aligned channels for fast sorption, self‐heating capabilities for viscous oil cleanup, and magnetic‐responsiveness to enhance a collection of final products. The perspective and challenges for the next generation of oil spills remediation technology‐based oil sorbents materials are finally presented in the last section.

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“…This is where tertiary methods known as enhanced oil recovery (EOR) techniques are needed to help. EOR techniques can recover the residual oil saturation left in the reservoir, and they can be referred to as follows: thermal recovery, , microbial recovery, , gas injection, , and chemical flooding. − In an oil reservoir, EOR techniques can make an overall improvement in terms of efficiency of oil displacement, which involves both macroscopic and microscopic parameters. , Due to different rock and fluid types, a suitable EOR technique should be chosen . For example, carbonate reservoirs, which are complex cases because of their low relative permeability, are the best to be treated in a way such that alterations in wettability occur in the rock .…”

Section: Introductionmentioning

confidence: 99%

“…15 This is where tertiary methods known as enhanced oil recovery (EOR) techniques are needed to help. EOR techniques can recover the residual oil saturation left in the reservoir, and they can be referred to as follows: thermal recovery, 16,17 microbial recovery, 18,19 gas injection, 20,21 and chemical flooding. 22−24 In an oil reservoir, EOR techniques can make an overall improvement in terms of efficiency of oil displacement, which involves both macroscopic and microscopic parame- ters.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and Modeling of Fluid and Carbonated Rock Interactions with EDTA Chelating Agent during EOR Process

et al. 2023

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The injection of chemical fluids into oil reservoirs is gaining widespread attention in light of the declining conventional oil resources by recovering more hydrocarbons. This study is focused on using a chemical called ethylenediaminetetraacetic acid (EDTA) chelating agent in a carbonate reservoir to shed light on contact angle differences of 625 aged thin sections and rock dissolution under the influence of different pHs, temperatures, chelating times, and various chelating agent concentrations in seawater. According to a rock dissolution test, at least 5 wt % of EDTA chemical is needed to obtain oil recovery. A ζ potential test and scanning electron microscopy (SEM) images revealed that the mechanism of adsorption at low pH values and the expansion of the electrical double layer (EDL) at high pH values were responsible for wettability alteration, and an increase in EDTA concentration intensified each mechanism. Interfacial tension (IFT) measurements also showed that adding 1 and 10 wt % of the EDTA to the seawater solution reduced the IFT by 67.75% and 76.08%, respectively. The contact angle experiments demonstrated an increase in the mechanism that leads rock to behave more hydrophilically as pH, solution temperature, and chelating agent concentration in saltwater increased. Artificial neural network (ANN) methods also led to the introduction of a model to predict the contact angle employing multilayer perceptron neural networks (MPNN) and cascade feedforward neural networks (CFFNN). The CFFNN with two hidden neurons and trained by the Levenberg–Marquardt backpropagation algorithm is the most accurate model when comparing the accuracy of models for predicting contact angle values. The CFFNN model indicated that the weight percentage of the chelating chemical, which has a share of about 90%, had the greatest influence on the contact angle, and chelating time, with a share of less than 10%, had the least.

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Impact of asphaltenes and clay interaction on in-situ combustion performance

Cited by 26 publications

References 50 publications

Workflow of the In Situ Combustion EOR Method in Venezuela: Challenges and Opportunities

Workflow of the In Situ Combustion EOR Method in Venezuela: Challenges and Opportunities

A Role for Newly Developed Sorbents in Remediating Large‐Scale Oil Spills: Reviewing Recent Advances and Beyond

Experimental Investigation and Modeling of Fluid and Carbonated Rock Interactions with EDTA Chelating Agent during EOR Process

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