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DEVELOPMENT OF PREDICTIVE EQUATIONS FOR PERMEABILITY AND STRENGTH OF OIL WELL CEMENT USING ELECTRICAL IMPEDANCE

Oilwell cement plays an important role either to seal-off the casing or to isolate the formation layers from the fluids infiltration that might cause a well bore damage. A cautious evaluation of cement after displacement is coming to be crucial to secure the long-term durability and integrity...

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Main Author: RIDHA, SYAHRIR
Format: Thesis
Language:English
Published: 2012
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://utpedia.utp.edu.my/21678/1/2012%20-PETROLEUM%20-%20DEVELOPMENT%20OF%20PREDICTIVE%20EQUATIONS%20FOR%20PERMEABILITY%20%26%20STRENGTH%20OF%20OIL%20WELL%20CEMENT%20USING%20ELECTRICAL%20IMPEDANCE%20-%20SYAHRIR%20RIDHA.pdf
http://utpedia.utp.edu.my/21678/
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spelling my-utp-utpedia.216782021-09-23T23:30:28Z http://utpedia.utp.edu.my/21678/ DEVELOPMENT OF PREDICTIVE EQUATIONS FOR PERMEABILITY AND STRENGTH OF OIL WELL CEMENT USING ELECTRICAL IMPEDANCE RIDHA, SYAHRIR TA Engineering (General). Civil engineering (General) Oilwell cement plays an important role either to seal-off the casing or to isolate the formation layers from the fluids infiltration that might cause a well bore damage. A cautious evaluation of cement after displacement is coming to be crucial to secure the long-term durability and integrity of wellbore. This work in turn is focused on the utilization of electrical properties for predicting the permeability and compressive strength of oil well cement. At present work, an electrical impedance measurement has been used to detect the conductivity evolution of oil well cement during early hydration. It was then followed by an examination towards the potential existence of interface conductivity along with its effects on various water cement ratios, curing temperature and also pressure. In analyzing the interface conductivity, the evaluation of the electrical responses in the form of conductivity dispersion characteristics has been done. Together with porosity data, conductivity data consisting of bulk and pore solution conductivity were examined to study several composite conductivity models to describe certain changes in the electrical conductivity of oil well cement system. Several empirical equations for predicting the permeability and compressive strength of oilwell cement based on its electrical properties response have been proposed. To validate the result, the proposed equations were experimentally compared to other cement samples with different water cement ratios and curing conditions. A comparison has also been made to the equation proposed by Katz�Thompson and Johnson's and also data from literatures. A good agreement between the proposed equation and measured data then shows that it is feasible to obtain the cement's strength and permeability in place using these electrical properties. Permeability and compressive strength in mature stage, furthermore, can be predicted by the proposed equations. 2012-11 Thesis NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/21678/1/2012%20-PETROLEUM%20-%20DEVELOPMENT%20OF%20PREDICTIVE%20EQUATIONS%20FOR%20PERMEABILITY%20%26%20STRENGTH%20OF%20OIL%20WELL%20CEMENT%20USING%20ELECTRICAL%20IMPEDANCE%20-%20SYAHRIR%20RIDHA.pdf RIDHA, SYAHRIR (2012) DEVELOPMENT OF PREDICTIVE EQUATIONS FOR PERMEABILITY AND STRENGTH OF OIL WELL CEMENT USING ELECTRICAL IMPEDANCE. PhD thesis, Universiti Teknologi PETRONAS.
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
RIDHA, SYAHRIR
DEVELOPMENT OF PREDICTIVE EQUATIONS FOR PERMEABILITY AND STRENGTH OF OIL WELL CEMENT USING ELECTRICAL IMPEDANCE
description Oilwell cement plays an important role either to seal-off the casing or to isolate the formation layers from the fluids infiltration that might cause a well bore damage. A cautious evaluation of cement after displacement is coming to be crucial to secure the long-term durability and integrity of wellbore. This work in turn is focused on the utilization of electrical properties for predicting the permeability and compressive strength of oil well cement. At present work, an electrical impedance measurement has been used to detect the conductivity evolution of oil well cement during early hydration. It was then followed by an examination towards the potential existence of interface conductivity along with its effects on various water cement ratios, curing temperature and also pressure. In analyzing the interface conductivity, the evaluation of the electrical responses in the form of conductivity dispersion characteristics has been done. Together with porosity data, conductivity data consisting of bulk and pore solution conductivity were examined to study several composite conductivity models to describe certain changes in the electrical conductivity of oil well cement system. Several empirical equations for predicting the permeability and compressive strength of oilwell cement based on its electrical properties response have been proposed. To validate the result, the proposed equations were experimentally compared to other cement samples with different water cement ratios and curing conditions. A comparison has also been made to the equation proposed by Katz�Thompson and Johnson's and also data from literatures. A good agreement between the proposed equation and measured data then shows that it is feasible to obtain the cement's strength and permeability in place using these electrical properties. Permeability and compressive strength in mature stage, furthermore, can be predicted by the proposed equations.
format Thesis
author RIDHA, SYAHRIR
author_facet RIDHA, SYAHRIR
author_sort RIDHA, SYAHRIR
title DEVELOPMENT OF PREDICTIVE EQUATIONS FOR PERMEABILITY AND STRENGTH OF OIL WELL CEMENT USING ELECTRICAL IMPEDANCE
title_short DEVELOPMENT OF PREDICTIVE EQUATIONS FOR PERMEABILITY AND STRENGTH OF OIL WELL CEMENT USING ELECTRICAL IMPEDANCE
title_full DEVELOPMENT OF PREDICTIVE EQUATIONS FOR PERMEABILITY AND STRENGTH OF OIL WELL CEMENT USING ELECTRICAL IMPEDANCE
title_fullStr DEVELOPMENT OF PREDICTIVE EQUATIONS FOR PERMEABILITY AND STRENGTH OF OIL WELL CEMENT USING ELECTRICAL IMPEDANCE
title_full_unstemmed DEVELOPMENT OF PREDICTIVE EQUATIONS FOR PERMEABILITY AND STRENGTH OF OIL WELL CEMENT USING ELECTRICAL IMPEDANCE
title_sort development of predictive equations for permeability and strength of oil well cement using electrical impedance
publishDate 2012
url http://utpedia.utp.edu.my/21678/1/2012%20-PETROLEUM%20-%20DEVELOPMENT%20OF%20PREDICTIVE%20EQUATIONS%20FOR%20PERMEABILITY%20%26%20STRENGTH%20OF%20OIL%20WELL%20CEMENT%20USING%20ELECTRICAL%20IMPEDANCE%20-%20SYAHRIR%20RIDHA.pdf
http://utpedia.utp.edu.my/21678/
_version_ 1739832897762754560
score 13.211869

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