Coupled T-H-M processes' effect on specific energy in continuous wave fiber laser rock perforation

Laser perforation of oil and gas wells is a new method for well completion as an alternative to blasting methods. Under real perforation in oil and gas wells, three main factors have influence on the laser perforation such as specific energy (i.e., energy required to remove the unit weight of rock)....

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Main Authors: Erfan, M., Shahriar, K., Sharifzadeh, Mostafa, Ahmadi, M., Mousavi, M.
Format: Journal Article
Published: 2018
Online Access:http://hdl.handle.net/20.500.11937/69568
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author Erfan, M.
Shahriar, K.
Sharifzadeh, Mostafa
Ahmadi, M.
Mousavi, M.
author_facet Erfan, M.
Shahriar, K.
Sharifzadeh, Mostafa
Ahmadi, M.
Mousavi, M.
author_sort Erfan, M.
building Curtin Institutional Repository
collection Online Access
description Laser perforation of oil and gas wells is a new method for well completion as an alternative to blasting methods. Under real perforation in oil and gas wells, three main factors have influence on the laser perforation such as specific energy (i.e., energy required to remove the unit weight of rock). These three factors are temperature, the hydraulic pressure of fluid flow, and confining pressure. This paper investigates the role and significance of the coupled T-H-M (thermo-hydraulic-mechanical) processes on specific energy (SE) and rate of penetration (RoP). For physical modeling of T-H-M processes, a new cell and setup is designed and developed. In this setup, a circular part of the front side of the cylindrical sample is open in order to interact with the laser beam while the temperature, hydraulic pressure, and confining pressure are applied to the sample. The rock tested under four temperature steps from 25 to 120 °C (temperature range of major oil reservoir in fractured rocks), the hydraulic pressure was chosen in five steps from 0 to 35 MPa (fluid pressure range of more than 70% of Iranian oil reservoir rocks), and confining pressure was selected from 0 to 40 MPa (ranges of overburden pressures). Test results show rises in specific energy with incremental increases in rock temperature, hydraulic pressure, and confining pressure, while the rate of penetration decreases.
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format Journal Article
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institution Curtin University Malaysia
institution_category Local University
last_indexed 2025-11-14T10:41:48Z
publishDate 2018
recordtype eprints
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spelling curtin-20.500.11937-695682018-12-13T03:41:17Z Coupled T-H-M processes' effect on specific energy in continuous wave fiber laser rock perforation Erfan, M. Shahriar, K. Sharifzadeh, Mostafa Ahmadi, M. Mousavi, M. Laser perforation of oil and gas wells is a new method for well completion as an alternative to blasting methods. Under real perforation in oil and gas wells, three main factors have influence on the laser perforation such as specific energy (i.e., energy required to remove the unit weight of rock). These three factors are temperature, the hydraulic pressure of fluid flow, and confining pressure. This paper investigates the role and significance of the coupled T-H-M (thermo-hydraulic-mechanical) processes on specific energy (SE) and rate of penetration (RoP). For physical modeling of T-H-M processes, a new cell and setup is designed and developed. In this setup, a circular part of the front side of the cylindrical sample is open in order to interact with the laser beam while the temperature, hydraulic pressure, and confining pressure are applied to the sample. The rock tested under four temperature steps from 25 to 120 °C (temperature range of major oil reservoir in fractured rocks), the hydraulic pressure was chosen in five steps from 0 to 35 MPa (fluid pressure range of more than 70% of Iranian oil reservoir rocks), and confining pressure was selected from 0 to 40 MPa (ranges of overburden pressures). Test results show rises in specific energy with incremental increases in rock temperature, hydraulic pressure, and confining pressure, while the rate of penetration decreases. 2018 Journal Article http://hdl.handle.net/20.500.11937/69568 10.2351/1.5018799 restricted
spellingShingle Erfan, M.
Shahriar, K.
Sharifzadeh, Mostafa
Ahmadi, M.
Mousavi, M.
Coupled T-H-M processes' effect on specific energy in continuous wave fiber laser rock perforation
title Coupled T-H-M processes' effect on specific energy in continuous wave fiber laser rock perforation
title_full Coupled T-H-M processes' effect on specific energy in continuous wave fiber laser rock perforation
title_fullStr Coupled T-H-M processes' effect on specific energy in continuous wave fiber laser rock perforation
title_full_unstemmed Coupled T-H-M processes' effect on specific energy in continuous wave fiber laser rock perforation
title_short Coupled T-H-M processes' effect on specific energy in continuous wave fiber laser rock perforation
title_sort coupled t-h-m processes' effect on specific energy in continuous wave fiber laser rock perforation
url http://hdl.handle.net/20.500.11937/69568