A NEW PERMEABILITY PREDICTION FOR CLEAN SANDS USING 3D RECONSTRUCTION METHODOLOGY ON THIN SECTIONS

There are several methods to predict permeability from thin sections. Conducting numerical simulation of laboratory experiments through 3D pore structure generated from thin section image is one of the methods. To implement this method on a standard personal computer and in real time, the size of th...

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Main Author:	Lubis, Luluan Almanna
Format:	Thesis
Published:	2012
Subjects:	Q Science (General)
Online Access:	http://eprints.utp.edu.my/10672/1/UPDATELuluan.A.Lubis.PrepThesis.07-May-2012.pdf
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topic	Q Science (General)
spellingShingle	Q Science (General) Lubis, Luluan Almanna A NEW PERMEABILITY PREDICTION FOR CLEAN SANDS USING 3D RECONSTRUCTION METHODOLOGY ON THIN SECTIONS
description	There are several methods to predict permeability from thin sections. Conducting numerical simulation of laboratory experiments through 3D pore structure generated from thin section image is one of the methods. To implement this method on a standard personal computer and in real time, the size of the generated 3D should be limited to mm scale. This size is an order of magnitude smaller than the physical core plug. Computed permeability from this size may be over or underestimated when compared with the true laboratory measurement which is conducted at cm scale. The aim of this study is to develop a robust workflow to estimate permeability of reservoir rocks at core plug scale (cm scale) using full thin section images of sandstone which can be implemented in real time on a standard personal computer. The workflow is based on a combination of fluid flow simulation through 3D porous media generated from 2D images at mm scale and grain size vertical profile trends of entire image area of the thin section which covers an area in cm scale. For validation purposes the 2D to 3D porous media methods were tested on 2D images selected from 3D CT-Scan image. The results showed that this methodology had good agreement with the CT-scan data. The workflow was then applied on thin sections of the Berea core plug and three wells in the Malay Basin where their porosity and permeability were tested in the laboratory. The grain size vertical profile trends which cover the entire area of thin sections were used to define the heterogeneity of full thin section images at cm scale. The building blocks for upscaling purposes were created based on these trends. The representative image from each block was selected and the 2D to 3D porous media method was applied. From this information permeability at mm scale from each block was estimated and then upscaled from pore to core plug scale. The upscaling results on each thin section matched well with laboratory data.
format	Thesis
qualification_level	Master's degree
author	Lubis, Luluan Almanna
author_facet	Lubis, Luluan Almanna
author_sort	Lubis, Luluan Almanna
title	A NEW PERMEABILITY PREDICTION FOR CLEAN SANDS USING 3D RECONSTRUCTION METHODOLOGY ON THIN SECTIONS
title_short	A NEW PERMEABILITY PREDICTION FOR CLEAN SANDS USING 3D RECONSTRUCTION METHODOLOGY ON THIN SECTIONS
title_full	A NEW PERMEABILITY PREDICTION FOR CLEAN SANDS USING 3D RECONSTRUCTION METHODOLOGY ON THIN SECTIONS
title_fullStr	A NEW PERMEABILITY PREDICTION FOR CLEAN SANDS USING 3D RECONSTRUCTION METHODOLOGY ON THIN SECTIONS
title_full_unstemmed	A NEW PERMEABILITY PREDICTION FOR CLEAN SANDS USING 3D RECONSTRUCTION METHODOLOGY ON THIN SECTIONS
title_sort	new permeability prediction for clean sands using 3d reconstruction methodology on thin sections
granting_institution	Universiti Teknologi PETRONAS
granting_department	Geosciences Department
publishDate	2012
url	http://eprints.utp.edu.my/10672/1/UPDATELuluan.A.Lubis.PrepThesis.07-May-2012.pdf
_version_	1747837928269152256
spelling	my-utp-ep.106722017-03-20T02:11:32Z A NEW PERMEABILITY PREDICTION FOR CLEAN SANDS USING 3D RECONSTRUCTION METHODOLOGY ON THIN SECTIONS 2012-05-01 Lubis, Luluan Almanna Q Science (General) There are several methods to predict permeability from thin sections. Conducting numerical simulation of laboratory experiments through 3D pore structure generated from thin section image is one of the methods. To implement this method on a standard personal computer and in real time, the size of the generated 3D should be limited to mm scale. This size is an order of magnitude smaller than the physical core plug. Computed permeability from this size may be over or underestimated when compared with the true laboratory measurement which is conducted at cm scale. The aim of this study is to develop a robust workflow to estimate permeability of reservoir rocks at core plug scale (cm scale) using full thin section images of sandstone which can be implemented in real time on a standard personal computer. The workflow is based on a combination of fluid flow simulation through 3D porous media generated from 2D images at mm scale and grain size vertical profile trends of entire image area of the thin section which covers an area in cm scale. For validation purposes the 2D to 3D porous media methods were tested on 2D images selected from 3D CT-Scan image. The results showed that this methodology had good agreement with the CT-scan data. The workflow was then applied on thin sections of the Berea core plug and three wells in the Malay Basin where their porosity and permeability were tested in the laboratory. The grain size vertical profile trends which cover the entire area of thin sections were used to define the heterogeneity of full thin section images at cm scale. The building blocks for upscaling purposes were created based on these trends. The representative image from each block was selected and the 2D to 3D porous media method was applied. From this information permeability at mm scale from each block was estimated and then upscaled from pore to core plug scale. The upscaling results on each thin section matched well with laboratory data. 2012-05 Thesis http://eprints.utp.edu.my/10672/ http://eprints.utp.edu.my/10672/1/UPDATELuluan.A.Lubis.PrepThesis.07-May-2012.pdf application/pdf masters Universiti Teknologi PETRONAS Geosciences Department [1] Dvorkin, J, Armbruster, M., Baldwin, C., Fang, Q., Derzhi, N., Gomez, C., Nur, B., Nur, A., and Mu, Y., “The future of rock physics: computational methods vs. lab. Testing,” EAGE First Break (26), 2008, pp. 63-68. 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A NEW PERMEABILITY PREDICTION FOR CLEAN SANDS USING 3D RECONSTRUCTION METHODOLOGY ON THIN SECTIONS

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