Modelling flow for finite conductivity in long horizontal oil wells

The impact of neglected well bore pressure losses due to fluid accumulation and kinetic energy in the fundamental energy equation used for derivation of flowing bottom-hole pressure in horizontal well have been conceived to be a considerable reason for the discrepancy between computed rates from the...

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Main Authors: Adesina Fadairo, Rasouli Vamegh, Ling Kegang, Olusegun Tomomewo, Ayokunle Ayinde, George N Iwenjora
Format: Article
Language:English
Published: SAGE Publishing 2021-09-01
Series:Energy Exploration & Exploitation
Online Access:https://doi.org/10.1177/0144598721998497
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author Adesina Fadairo
Rasouli Vamegh
Ling Kegang
Olusegun Tomomewo
Ayokunle Ayinde
George N Iwenjora
author_facet Adesina Fadairo
Rasouli Vamegh
Ling Kegang
Olusegun Tomomewo
Ayokunle Ayinde
George N Iwenjora
author_sort Adesina Fadairo
collection DOAJ
description The impact of neglected well bore pressure losses due to fluid accumulation and kinetic energy in the fundamental energy equation used for derivation of flowing bottom-hole pressure in horizontal well have been conceived to be a considerable reason for the discrepancy between computed rates from the existing models and actual rates got from production tests. In the study, a new model that investigate all possible well bore pressure losses effect on the production rate of a horizontal oil well have been established. The newly developed model has been validated using the field data obtained from the literature and outcome got from the new model yields more satisfactory results. A more realistic results that evident all flow phenomena in petroleum production well include the initial unsteady, pseudo-steady and steady state flow condition hence flow rate at any given production time has been established for flow of oil along horizontal production well. The concept is useful to estimate flowing bottom-hole pressure and analyze its effect on production rate value of a horizontal oil well without ignoring any pressure resisting terms in the governing thermodynamic equation. The unsteadiness fluid flow period that generally observed after shut in a well have also been demonstrated. Closer agreement between the results obtained using the newly developed model and real life field measurement was observed when compared with the previous model in the literature. The study gives reservoir engineer an exact and helpful device for estimating and assessing horizontal oil well production rate.
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spelling doaj.art-7dec8bc3f7a14729b65136c08c50b6a22022-12-21T19:49:54ZengSAGE PublishingEnergy Exploration & Exploitation0144-59872048-40542021-09-013910.1177/0144598721998497Modelling flow for finite conductivity in long horizontal oil wellsAdesina FadairoRasouli VameghLing KegangOlusegun TomomewoAyokunle AyindeGeorge N IwenjoraThe impact of neglected well bore pressure losses due to fluid accumulation and kinetic energy in the fundamental energy equation used for derivation of flowing bottom-hole pressure in horizontal well have been conceived to be a considerable reason for the discrepancy between computed rates from the existing models and actual rates got from production tests. In the study, a new model that investigate all possible well bore pressure losses effect on the production rate of a horizontal oil well have been established. The newly developed model has been validated using the field data obtained from the literature and outcome got from the new model yields more satisfactory results. A more realistic results that evident all flow phenomena in petroleum production well include the initial unsteady, pseudo-steady and steady state flow condition hence flow rate at any given production time has been established for flow of oil along horizontal production well. The concept is useful to estimate flowing bottom-hole pressure and analyze its effect on production rate value of a horizontal oil well without ignoring any pressure resisting terms in the governing thermodynamic equation. The unsteadiness fluid flow period that generally observed after shut in a well have also been demonstrated. Closer agreement between the results obtained using the newly developed model and real life field measurement was observed when compared with the previous model in the literature. The study gives reservoir engineer an exact and helpful device for estimating and assessing horizontal oil well production rate.https://doi.org/10.1177/0144598721998497
spellingShingle Adesina Fadairo
Rasouli Vamegh
Ling Kegang
Olusegun Tomomewo
Ayokunle Ayinde
George N Iwenjora
Modelling flow for finite conductivity in long horizontal oil wells
Energy Exploration & Exploitation
title Modelling flow for finite conductivity in long horizontal oil wells
title_full Modelling flow for finite conductivity in long horizontal oil wells
title_fullStr Modelling flow for finite conductivity in long horizontal oil wells
title_full_unstemmed Modelling flow for finite conductivity in long horizontal oil wells
title_short Modelling flow for finite conductivity in long horizontal oil wells
title_sort modelling flow for finite conductivity in long horizontal oil wells
url https://doi.org/10.1177/0144598721998497
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AT oluseguntomomewo modellingflowforfiniteconductivityinlonghorizontaloilwells
AT ayokunleayinde modellingflowforfiniteconductivityinlonghorizontaloilwells
AT georgeniwenjora modellingflowforfiniteconductivityinlonghorizontaloilwells