Use Conventional and Statistical Methods for Porosity Estimating in Carbonate Reservoir in Southern Iraq, Case Study

Porosity is important because it reflects the presence of oil reserves. Hence, the number of underground reserves and a direct influence on the essential petrophysical parameters, such as permeability and saturation, are related to connected pores. Also, the selection of perforation interva...

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Autor principal:	Ali Hussein Tali
Formato:	article
Lenguaje:	EN
Publicado:	Union of Iraqi Geologists (UIG) 2021
Materias:	Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/42c10f20e96a45239be982b54cc7cd9c
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spelling	oai:doaj.org-article:42c10f20e96a45239be982b54cc7cd9c2021-11-06T11:55:28ZUse Conventional and Statistical Methods for Porosity Estimating in Carbonate Reservoir in Southern Iraq, Case Study2414-60642663-875410.46717/igj.54.2D.3Ms-2021-10-22https://doaj.org/article/42c10f20e96a45239be982b54cc7cd9c2021-10-01T00:00:00Zhttp://igj-iraq.org/igj/index.php/igj/article/view/728https://doaj.org/toc/2414-6064https://doaj.org/toc/2663-8754 Porosity is important because it reflects the presence of oil reserves. Hence, the number of underground reserves and a direct influence on the essential petrophysical parameters, such as permeability and saturation, are related to connected pores. Also, the selection of perforation interval and recommended drilling additional infill wells. For the estimation two distinct methods are used to obtain the results: the first method is based on conventional equations that utilize porosity logs. In contrast, the second approach relies on statistical methods based on making matrices dependent on rock and fluid composition and solving the equations (matrices) instantaneously. In which records have entered as equations, and the matrix is solved in one step, the porosity, saturation, and volume of minerals embedded inside the rock formations were obtained. The results indicated that the porosity was determined using statistical and conventional approaches matched to the core porosity. In the end, statistical techniques afford a different path for calculation and provide outcomes that can be used in all situations, particularly when the rock has many types of components. Furthermore, it is not based on conventional equations and overcomes the problems coming from the unreliability of porosity logs in formations containing mixed minerals.Ali Hussein TaliUnion of Iraqi Geologists (UIG)articleGeologyQE1-996.5ENIraqi Geological Journal, Vol 54, Iss 2D, Pp 30-38 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Geology QE1-996.5
spellingShingle	Geology QE1-996.5 Ali Hussein Tali Use Conventional and Statistical Methods for Porosity Estimating in Carbonate Reservoir in Southern Iraq, Case Study
description	Porosity is important because it reflects the presence of oil reserves. Hence, the number of underground reserves and a direct influence on the essential petrophysical parameters, such as permeability and saturation, are related to connected pores. Also, the selection of perforation interval and recommended drilling additional infill wells. For the estimation two distinct methods are used to obtain the results: the first method is based on conventional equations that utilize porosity logs. In contrast, the second approach relies on statistical methods based on making matrices dependent on rock and fluid composition and solving the equations (matrices) instantaneously. In which records have entered as equations, and the matrix is solved in one step, the porosity, saturation, and volume of minerals embedded inside the rock formations were obtained. The results indicated that the porosity was determined using statistical and conventional approaches matched to the core porosity. In the end, statistical techniques afford a different path for calculation and provide outcomes that can be used in all situations, particularly when the rock has many types of components. Furthermore, it is not based on conventional equations and overcomes the problems coming from the unreliability of porosity logs in formations containing mixed minerals.
format	article
author	Ali Hussein Tali
author_facet	Ali Hussein Tali
author_sort	Ali Hussein Tali
title	Use Conventional and Statistical Methods for Porosity Estimating in Carbonate Reservoir in Southern Iraq, Case Study
title_short	Use Conventional and Statistical Methods for Porosity Estimating in Carbonate Reservoir in Southern Iraq, Case Study
title_full	Use Conventional and Statistical Methods for Porosity Estimating in Carbonate Reservoir in Southern Iraq, Case Study
title_fullStr	Use Conventional and Statistical Methods for Porosity Estimating in Carbonate Reservoir in Southern Iraq, Case Study
title_full_unstemmed	Use Conventional and Statistical Methods for Porosity Estimating in Carbonate Reservoir in Southern Iraq, Case Study
title_sort	use conventional and statistical methods for porosity estimating in carbonate reservoir in southern iraq, case study
publisher	Union of Iraqi Geologists (UIG)
publishDate	2021
url	https://doaj.org/article/42c10f20e96a45239be982b54cc7cd9c
work_keys_str_mv	AT alihusseintali useconventionalandstatisticalmethodsforporosityestimatingincarbonatereservoirinsoutherniraqcasestudy
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Use Conventional and Statistical Methods for Porosity Estimating in Carbonate Reservoir in Southern Iraq, Case Study

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