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A Novel Infinite-Acting Radial-Flow Analysis Procedure for Estimating Horizontal and Vertical Permeability from an Observation-Probe Pressure Response

This paper presents a new infinite-acting radial-flow analysis procedure for estimating horizontal and vertical permeability solely from pressure transient data acquired at an observation probe during an interval pressure transient test (IPTT) conducted with a single-probe or dual-packer module. The...

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Main Author: Onur, Mustafa
Format: Conference or Workshop Item
Published: 2013
Online Access:http://eprints.utp.edu.my/10749/1/SPE-164797-MS-P.pdf
http://eprints.utp.edu.my/10749/
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spelling my.utp.eprints.107492017-03-20T01:59:25Z A Novel Infinite-Acting Radial-Flow Analysis Procedure for Estimating Horizontal and Vertical Permeability from an Observation-Probe Pressure Response Onur, Mustafa This paper presents a new infinite-acting radial-flow analysis procedure for estimating horizontal and vertical permeability solely from pressure transient data acquired at an observation probe during an interval pressure transient test (IPTT) conducted with a single-probe or dual-packer module. The procedure is based on new infinite-acting radial-flow equations that apply for all inclination angles of the wellbore in a single-layer, 3D anisotropic, homogeneous porous medium. The equations for 2D anisotropic cases are also presented and are derived from the general equations given for the 3D anisotropic case. It is shown that the radial-flow equation presented reduces to the Prats’ equation assuming infinite-acting radial flow at an observation point along a vertical wellbore in isotropic or 2D anisotropic formations of finite bed thickness. The applicability of the analysis procedure is demonstrated by considering synthetic and field probe-probe and packer-probe IPTT data. The results indicate that the procedure provides reliable estimates of horizontal and vertical permeability solely from observation-probe pressure data during radial flow for vertical, horizontal, and slanted wellbores. Most importantly, the analysis does not require that both spherical and radial flow prevail at the observation probe during the test. 2013 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/10749/1/SPE-164797-MS-P.pdf Onur, Mustafa (2013) A Novel Infinite-Acting Radial-Flow Analysis Procedure for Estimating Horizontal and Vertical Permeability from an Observation-Probe Pressure Response. In: EAGE Annual Conference & Exhibition incorporating SPE Europec held in London, United Kingdom, 10–13 June 2013., 10-13 June, London. http://eprints.utp.edu.my/10749/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description This paper presents a new infinite-acting radial-flow analysis procedure for estimating horizontal and vertical permeability solely from pressure transient data acquired at an observation probe during an interval pressure transient test (IPTT) conducted with a single-probe or dual-packer module. The procedure is based on new infinite-acting radial-flow equations that apply for all inclination angles of the wellbore in a single-layer, 3D anisotropic, homogeneous porous medium. The equations for 2D anisotropic cases are also presented and are derived from the general equations given for the 3D anisotropic case. It is shown that the radial-flow equation presented reduces to the Prats’ equation assuming infinite-acting radial flow at an observation point along a vertical wellbore in isotropic or 2D anisotropic formations of finite bed thickness. The applicability of the analysis procedure is demonstrated by considering synthetic and field probe-probe and packer-probe IPTT data. The results indicate that the procedure provides reliable estimates of horizontal and vertical permeability solely from observation-probe pressure data during radial flow for vertical, horizontal, and slanted wellbores. Most importantly, the analysis does not require that both spherical and radial flow prevail at the observation probe during the test.
format Conference or Workshop Item
author Onur, Mustafa
spellingShingle Onur, Mustafa
A Novel Infinite-Acting Radial-Flow Analysis Procedure for Estimating Horizontal and Vertical Permeability from an Observation-Probe Pressure Response
author_facet Onur, Mustafa
author_sort Onur, Mustafa
title A Novel Infinite-Acting Radial-Flow Analysis Procedure for Estimating Horizontal and Vertical Permeability from an Observation-Probe Pressure Response
title_short A Novel Infinite-Acting Radial-Flow Analysis Procedure for Estimating Horizontal and Vertical Permeability from an Observation-Probe Pressure Response
title_full A Novel Infinite-Acting Radial-Flow Analysis Procedure for Estimating Horizontal and Vertical Permeability from an Observation-Probe Pressure Response
title_fullStr A Novel Infinite-Acting Radial-Flow Analysis Procedure for Estimating Horizontal and Vertical Permeability from an Observation-Probe Pressure Response
title_full_unstemmed A Novel Infinite-Acting Radial-Flow Analysis Procedure for Estimating Horizontal and Vertical Permeability from an Observation-Probe Pressure Response
title_sort novel infinite-acting radial-flow analysis procedure for estimating horizontal and vertical permeability from an observation-probe pressure response
publishDate 2013
url http://eprints.utp.edu.my/10749/1/SPE-164797-MS-P.pdf
http://eprints.utp.edu.my/10749/
_version_ 1738655892440612864
score 13.211869

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