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Analysis of Wireline Interval Pressure Transient Tests From Single and Layered Reservoir Systems

Chuin Cherng, Tang (2013) Analysis of Wireline Interval Pressure Transient Tests From Single and Layered Reservoir Systems. Universiti Teknologi Petronas. (Unpublished)

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Abstract

This project examines the methodology of the packer-probe wireline formation tests (WFT) to interpret and analyse the pressure transient data acquired at the packer and probes along the wellbore for single layer and multi-layered systems. Such tests are often called WFT interval pressure transient tests or simply WFT IPTTs. IPTTs offer some advantages over the conventional (extended) well tests in terms of cost, time, and providing important properties such as horizontal and vertical permeability over a scale larger than cores but smaller than that of extended well tests. In this project, the same methodology applied to a packer-probe WFT in single layer system will be applied to various multi-layered systems to investigate the feasibility and validity of using the single-layer analysis methodology for the WFT IPTTs conducted in multilayered systems. A number of papers were presented on interpretation of packerprobe transient test because it is important to know the horizontal and vertical permeability along a wellbore for the benefits of secondary recovery and enhanced oil recovery purposes. However, most papers available in the literature present analysis methods for interpreting pressure transient test data acquired by packer-probe WFTs in single-layer systems. Only a few of them considered interpretation of packer-probe interval pressure-transient tests in multi-layered systems. Thus, one of the main objectives in this project is in detail to access the methodology used for analyzing a single layer system and apply the same to multi-layered system. Various averaging formulas of horizontal and vertical permeabilities will be used to represent the multilayered system. The validity of the representation is tested through pressure response matching. The methodology will be thoroughly discussed in this project. The interpretation is to conduct in step by step manners by covering the main steps of pressure transient interpretation and analysis; i.e., flow regime identification, parameters estimation, averaging permeability as well as pressure response matching.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petrophysics - Petrophysical data acquisition
Subject: T Technology > T Technology (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Users 2053 not found.
Date Deposited: 25 Nov 2013 16:44
Last Modified: 25 Jan 2017 09:39
URI: http://utpedia.utp.edu.my/id/eprint/10731

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