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Exergetic assessment of energy systems on North Sea oil and gas platforms

Abstract

Oil and gas platforms in the North Sea region are associated with high power consumption and large CO{sub 2}-emissions, as the processing and utility plants suffer from significant changes in production rates and performance losses over the field lifespan. In this paper, a generic model of the overall offshore system is described: its thermodynamic performance is assessed by performing an exergy accounting and rules of thumb for oil and gas platforms are derived. Simulations are built and conducted with the tools Aspen Plus{sup ®}, Dynamic Network Analysis and Aspen HYSYS{sup ®}. 62–65% of the total exergy destruction of an offshore platform is attributable to the power generation and waste heat recovery system, and 35–38% to the oil and gas processing. The variability of the feed composition has little effect on the split of the thermodynamic irreversibilities between both plants. The rejection of high-temperature gases from the utility and flaring systems is the major contributor to the exergy losses. These findings suggest to focus efforts on a better use of the waste heat contained in the exhaust gases and on the ways in which the gas compression performance can be improved. - Highlights: • North Sea oil and gas platforms are  More>>
Authors:
Nguyen, Tuong-Van; [1]  Pierobon, Leonardo; Elmegaard, Brian; Haglind, Fredrik; [1]  Breuhaus, Peter; [2]  Voldsund, Mari [3] 
  1. Section of Thermal Energy, Department of Mechanical Engineering, Technical University of Denmark, Building 403, Nils Koppels Allé, 2800 Kongens Lyngby (Denmark)
  2. Department of Energy, International Research Institute of Stavanger, Professor Olav Hanssens vei 15, 4021 Stavanger (Norway)
  3. Department of Chemistry, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim (Norway)
Publication Date:
Dec 01, 2013
Product Type:
Journal Article
Resource Relation:
Journal Name: Energy (Oxford); Journal Volume: 62; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Subject:
29 ENERGY PLANNING, POLICY AND ECONOMY; CARBON DIOXIDE; COMPRESSION; COMPUTERIZED SIMULATION; ENERGY CONSUMPTION; ENERGY LOSSES; ENERGY SYSTEMS; EXERGY; EXHAUST GASES; GREENHOUSE EFFECT; HEAT RECOVERY; HEAT RECOVERY EQUIPMENT; NETWORK ANALYSIS; NORTH SEA; OFFSHORE PLATFORMS; POWER GENERATION; THERMODYNAMIC PROPERTIES; WASTE HEAT
OSTI ID:
22312432
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0360-5442; CODEN: ENEYDS; Other: PII: S0360-5442(13)00187-4; TRN: GB14R4501018606
Availability:
Available from http://dx.doi.org/10.1016/j.energy.2013.03.011
Submitting Site:
INIS
Size:
page(s) 23-36
Announcement Date:
Mar 03, 2015

Citation Formats

Nguyen, Tuong-Van, Pierobon, Leonardo, Elmegaard, Brian, Haglind, Fredrik, Breuhaus, Peter, and Voldsund, Mari. Exergetic assessment of energy systems on North Sea oil and gas platforms. United Kingdom: N. p., 2013. Web. doi:10.1016/J.ENERGY.2013.03.011.
Nguyen, Tuong-Van, Pierobon, Leonardo, Elmegaard, Brian, Haglind, Fredrik, Breuhaus, Peter, & Voldsund, Mari. Exergetic assessment of energy systems on North Sea oil and gas platforms. United Kingdom. doi:10.1016/J.ENERGY.2013.03.011.
Nguyen, Tuong-Van, Pierobon, Leonardo, Elmegaard, Brian, Haglind, Fredrik, Breuhaus, Peter, and Voldsund, Mari. 2013. "Exergetic assessment of energy systems on North Sea oil and gas platforms." United Kingdom. doi:10.1016/J.ENERGY.2013.03.011. https://www.osti.gov/servlets/purl/10.1016/J.ENERGY.2013.03.011.
@misc{etde_22312432,
title = {Exergetic assessment of energy systems on North Sea oil and gas platforms}
author = {Nguyen, Tuong-Van, Pierobon, Leonardo, Elmegaard, Brian, Haglind, Fredrik, Breuhaus, Peter, and Voldsund, Mari}
abstractNote = {Oil and gas platforms in the North Sea region are associated with high power consumption and large CO{sub 2}-emissions, as the processing and utility plants suffer from significant changes in production rates and performance losses over the field lifespan. In this paper, a generic model of the overall offshore system is described: its thermodynamic performance is assessed by performing an exergy accounting and rules of thumb for oil and gas platforms are derived. Simulations are built and conducted with the tools Aspen Plus{sup ®}, Dynamic Network Analysis and Aspen HYSYS{sup ®}. 62–65% of the total exergy destruction of an offshore platform is attributable to the power generation and waste heat recovery system, and 35–38% to the oil and gas processing. The variability of the feed composition has little effect on the split of the thermodynamic irreversibilities between both plants. The rejection of high-temperature gases from the utility and flaring systems is the major contributor to the exergy losses. These findings suggest to focus efforts on a better use of the waste heat contained in the exhaust gases and on the ways in which the gas compression performance can be improved. - Highlights: • North Sea oil and gas platforms are investigated and a generic model is developed. • Exergy analysis of these offshore facilities is performed. • Most of the total exergy destruction is attributable to the utility systems producing the electrical power required onsite. • Rejection of the exhaust gases from the utility systems is the major exergy loss of this system. • The highest thermodynamic performance is reached with low well-fluid content of water and gas.}
doi = {10.1016/J.ENERGY.2013.03.011}
journal = {Energy (Oxford)}
volume = {62}
journal type = {AC}
place = {United Kingdom}
year = {2013}
month = {Dec}
}