Pub Date : 2019-11-18DOI: 10.3997/2214-4609.201903111
Abdulmujeeb T. Onawole, I. Hussein, M. Saad, M. Ahmed, S. Aparicio
Summary Scale formation including those formed by iron sulfides have been a major hassle in the upstream sector of the oil and gas industry for many decades. Iron Sulfide scales including pyrite (FeS2) and troilite (FeS) often form a precipitate in the matrix formation, tubulars and other downhole equipment in the wells resulting in plant shutdown. Herein, a molecular modelling tool known as Density Functional Theory (DFT) is used to study the binding affinity of chelating agents to ferrous ion, which is the state of iron in pyrite scale. The calculated binding affinity of the chelating agents to Fe2+ increased in the order; GLDA < HEDTA < EDTA < DTPA which correlated with what has been reported experimentally. The number of nitrogen atoms in a chelating agent plays a predominant role in its binding ability. This could give insights on how novel chemicals could be designed which would be more effective and environmentally friendly in iron sulfide scale removal.
{"title":"Application of DFT in Iron Sulfide Scale Removal from Oil and Gas Wells","authors":"Abdulmujeeb T. Onawole, I. Hussein, M. Saad, M. Ahmed, S. Aparicio","doi":"10.3997/2214-4609.201903111","DOIUrl":"https://doi.org/10.3997/2214-4609.201903111","url":null,"abstract":"Summary Scale formation including those formed by iron sulfides have been a major hassle in the upstream sector of the oil and gas industry for many decades. Iron Sulfide scales including pyrite (FeS2) and troilite (FeS) often form a precipitate in the matrix formation, tubulars and other downhole equipment in the wells resulting in plant shutdown. Herein, a molecular modelling tool known as Density Functional Theory (DFT) is used to study the binding affinity of chelating agents to ferrous ion, which is the state of iron in pyrite scale. The calculated binding affinity of the chelating agents to Fe2+ increased in the order; GLDA < HEDTA < EDTA < DTPA which correlated with what has been reported experimentally. The number of nitrogen atoms in a chelating agent plays a predominant role in its binding ability. This could give insights on how novel chemicals could be designed which would be more effective and environmentally friendly in iron sulfide scale removal.","PeriodicalId":237705,"journal":{"name":"Third EAGE WIPIC Workshop: Reservoir Management in Carbonates","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125016230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.201910001
T. Sager, W. Saleh
{"title":"Comparative Analysis of ML Classifiers in an Imbalanced Facies Distributed Data from a Libyan Carbonate Reservoir","authors":"T. Sager, W. Saleh","doi":"10.3997/2214-4609.201910001","DOIUrl":"https://doi.org/10.3997/2214-4609.201910001","url":null,"abstract":"","PeriodicalId":237705,"journal":{"name":"Third EAGE WIPIC Workshop: Reservoir Management in Carbonates","volume":"53 48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122006118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.201910002
G. Berthereau, S. Finlay, M. Viandante
{"title":"4D Seismic Integration with Reservoir Mapping While Drilling (RMWD) for Reservoir Heterogeneities Characterization (Al Shaheen Field)","authors":"G. Berthereau, S. Finlay, M. Viandante","doi":"10.3997/2214-4609.201910002","DOIUrl":"https://doi.org/10.3997/2214-4609.201910002","url":null,"abstract":"","PeriodicalId":237705,"journal":{"name":"Third EAGE WIPIC Workshop: Reservoir Management in Carbonates","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121356057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.201903137
R. Al-Raoush, J. Hannun, Z. Jarrar, K. Alshibli, J. Jung
{"title":"Grouping Minimum REV of Porosity and Tortuosity Based on Descriptors of Sand Grains","authors":"R. Al-Raoush, J. Hannun, Z. Jarrar, K. Alshibli, J. Jung","doi":"10.3997/2214-4609.201903137","DOIUrl":"https://doi.org/10.3997/2214-4609.201903137","url":null,"abstract":"","PeriodicalId":237705,"journal":{"name":"Third EAGE WIPIC Workshop: Reservoir Management in Carbonates","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127339330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.201903121
N. Zhang, A. Abushaikha
SummaryModelling fluid flows in fractured reservoirs is crucial to many recent engineering and applied science research. Various numerical methods have been applied, including finite element methods, finite volume methods. These approaches have inherent limitations in accuracy and application. Considering these limitations, in this paper, we present a novel mimetic finite difference (MFD) framework to simulate two phase flow accurately in fracture reservoirs.A novel MFD method is proposed for simulating multiphase flow through fractured reservoirs by taking advantage of unstructured mesh. Our approach combines MFD and finite volume (FV) methods. Darcy’s equation is discreted by MFD method, while the FV method is used to approximate the saturation equation. The resulting system of equations is then imposed with suitable physical coupling conditions along the matrix/ fracture interfaces. This coupling conditions at the interfaces between matrix and fracture flow involve only the centroid pressure of fractures, which brings some simplification in analysis. The proposed approach is applicable for three dimensional systems. Moreover, it is applicable in arbitrary unstructured gridcells with full-tensor permeabilities. Some examples are implemented to show the performance of MFD method. The results showed a big potential of our method to simulate the flow problems with high accuracy and application.
{"title":"Mimetic Finite Difference Simulation of Multiphase Flow in Carbonate Fractured Media in Presence of Capillary Pressure","authors":"N. Zhang, A. Abushaikha","doi":"10.3997/2214-4609.201903121","DOIUrl":"https://doi.org/10.3997/2214-4609.201903121","url":null,"abstract":"SummaryModelling fluid flows in fractured reservoirs is crucial to many recent engineering and applied science research. Various numerical methods have been applied, including finite element methods, finite volume methods. These approaches have inherent limitations in accuracy and application. Considering these limitations, in this paper, we present a novel mimetic finite difference (MFD) framework to simulate two phase flow accurately in fracture reservoirs.A novel MFD method is proposed for simulating multiphase flow through fractured reservoirs by taking advantage of unstructured mesh. Our approach combines MFD and finite volume (FV) methods. Darcy’s equation is discreted by MFD method, while the FV method is used to approximate the saturation equation. The resulting system of equations is then imposed with suitable physical coupling conditions along the matrix/ fracture interfaces. This coupling conditions at the interfaces between matrix and fracture flow involve only the centroid pressure of fractures, which brings some simplification in analysis. The proposed approach is applicable for three dimensional systems. Moreover, it is applicable in arbitrary unstructured gridcells with full-tensor permeabilities. Some examples are implemented to show the performance of MFD method. The results showed a big potential of our method to simulate the flow problems with high accuracy and application.","PeriodicalId":237705,"journal":{"name":"Third EAGE WIPIC Workshop: Reservoir Management in Carbonates","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131590054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.201903136
A. F. M. Moshiur Rahman
{"title":"Formation Damage by Produced Water Injection in Carbonate Reservoir","authors":"A. F. M. Moshiur Rahman","doi":"10.3997/2214-4609.201903136","DOIUrl":"https://doi.org/10.3997/2214-4609.201903136","url":null,"abstract":"","PeriodicalId":237705,"journal":{"name":"Third EAGE WIPIC Workshop: Reservoir Management in Carbonates","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117158102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.3997/2214-4609.201903129
S. Nishad, R. Al-Raoush
{"title":"Pore-Scale Mechanisms Associated with Permeability Impairment in Porous Media: a Micromodel Study","authors":"S. Nishad, R. Al-Raoush","doi":"10.3997/2214-4609.201903129","DOIUrl":"https://doi.org/10.3997/2214-4609.201903129","url":null,"abstract":"","PeriodicalId":237705,"journal":{"name":"Third EAGE WIPIC Workshop: Reservoir Management in Carbonates","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123066403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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