Gas Lift Technique a Tool to Production Optimization

Okotie Sylvester; Ikporo Bibobra; Ovuema Augustina

doi:doi:10.11648/j.ogce.20150303.12

| Peer-Reviewed

Gas Lift Technique a Tool to Production Optimization

Okotie Sylvester, Ikporo Bibobra, Ovuema Augustina

Published in International Journal of Oil, Gas and Coal Engineering (Volume 3, Issue 3)

Received: 5 May 2015 Accepted: 26 May 2015 Published: 11 June 2015

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

The paramount aim of every oil and gas operator is to minimize both capital and operating costs and more importantly, maximize cumulative oil production in the most cost-effective manner for the entire field. This is to say that a true production optimization requires an operator to take a logical look at the field’s production systems from the subsurface to surface facilities. Therefore, when an oil well fails to flow naturally, it requires an assisted lifting system. Gas lift system is one of the few artificial lift methods used to start up a well and/or increase the producing life of oil and gas wells. The principle of Gas lift is by lowering the hydrostatic pressure inside the production tubing through the injection of lighter fluid into the annulus. GT oil field in the Niger Delta was used as case study; it has a production life span of eighteen years. To increase GT production and extend the lifetime of the field, the operator decided to start up an artificial lift project with an aim of optimize its production. To select the best artificial lift method to use, an economic evaluation was carried out using PROSPER for gas lift and a base case (Natural Flow) and then a production forecast with the different scenarios was performed for six years. In technical comparison, PROSPER simulation results shows that Gas lift technique gave a higher production rates when compared with the Base Case (Natural Flow), and in terms of economic comparison by considering factors like: water cut and replacement of failed pump, gas lift system was preferred for proper production optimization techniques. However, gas lift was chosen for GT based on the availability of the readily compressed gas, higher life time expectance and lower installation and operational cost as compared to other artificial lift techniques.

Published in	International Journal of Oil, Gas and Coal Engineering (Volume 3, Issue 3)
DOI	10.11648/j.ogce.20150303.12
Page(s)	41-46
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Gas Lift, Artificial Lift, Natural Flow, Production Optimization, PROSPER, Production Rate, Economic and Sensitivity Analysis

References

[1]	Bath, England (1998): Introduction to well testing.
[2]	B. Neely, F. Gipson, B. Capps, J. Clegg, P. Wilson,“Selection of Artificial Lift method,” Dallas, Texas, 1981, SPE#1033.
[3]	Bath, England (1998): Introduction to well testing.
[4]	H. D Beggs, “Production optimization using nodal analysis”, oil and gas consultant, International Tulsa, 1991, pp.6, 9-36,135.
[5]	K. Dutta-Roy and J. Kattapuram, “New approach to gas-lift allocation optimization,” in Proceedings of 67th Annual Western Regional Meeting, pp. 685–691, Long Beach, Calif, USA, June 1997.
[6]	N. Nishikiori, R. A. Redner, D. R. Doty, and Z. Schmidt, “Improved method for gas lift allocation optimization,” in Proceedings of the SPE Annual Technical Conference & Exhibition (ATCE '89), pp. 105–118, San Antonio, Tex, USA, October 1989. View at Scopus
[7]	J. D Clegg, S.M. Bucaram, and N.W. Heln, Jr. “Recommendations and Comparisons for Selecting Artificial-Lift Methods.” Paper SPE 24834. Journal of Petroleum Technology. December 1993.
[8]	J. D. Clegg, “High-rate Artificial Lift,” Journal of Petroleum Technology, SPE#17638.
[9]	Petroleum Experts Limited, (2005). “Prosper Single Well System Analysis Version 9.1 User Guide”. Scotland.
[10]	PROSPER v.10 User Manual, Petroleum Experts. 2008.
[11]	S. Ayatollahi, A. Bahadori, and A. Moshfeghian, “Method optimisesAghajari oil field gas lift,” Oil and Gas Journal, 2001, vol. 99, no. 21, pp. 47–49.

Cite This Article

Plain Text BibTeX RIS

APA Style

Okotie Sylvester, Ikporo Bibobra, Ovuema Augustina. (2015). Gas Lift Technique a Tool to Production Optimization. International Journal of Oil, Gas and Coal Engineering, 3(3), 41-46. https://doi.org/10.11648/j.ogce.20150303.12

Copy | Download

ACS Style

Okotie Sylvester; Ikporo Bibobra; Ovuema Augustina. Gas Lift Technique a Tool to Production Optimization. Int. J. Oil Gas Coal Eng. 2015, 3(3), 41-46. doi: 10.11648/j.ogce.20150303.12

Copy | Download

AMA Style

Okotie Sylvester, Ikporo Bibobra, Ovuema Augustina. Gas Lift Technique a Tool to Production Optimization. Int J Oil Gas Coal Eng. 2015;3(3):41-46. doi: 10.11648/j.ogce.20150303.12

Copy | Download

@article{10.11648/j.ogce.20150303.12,
  author = {Okotie Sylvester and Ikporo Bibobra and Ovuema Augustina},
  title = {Gas Lift Technique a Tool to Production Optimization},
  journal = {International Journal of Oil, Gas and Coal Engineering},
  volume = {3},
  number = {3},
  pages = {41-46},
  doi = {10.11648/j.ogce.20150303.12},
  url = {https://doi.org/10.11648/j.ogce.20150303.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20150303.12},
  abstract = {The paramount aim of every oil and gas operator is to minimize both capital and operating costs and more importantly, maximize cumulative oil production in the most cost-effective manner for the entire field. This is to say that a true production optimization requires an operator to take a logical look at the field’s production systems from the subsurface to surface facilities. Therefore, when an oil well fails to flow naturally, it requires an assisted lifting system. Gas lift system is one of the few artificial lift methods used to start up a well and/or increase the producing life of oil and gas wells. The principle of Gas lift is by lowering the hydrostatic pressure inside the production tubing through the injection of lighter fluid into the annulus. GT oil field in the Niger Delta was used as case study; it has a production life span of eighteen years. To increase GT production and extend the lifetime of the field, the operator decided to start up an artificial lift project with an aim of optimize its production. To select the best artificial lift method to use, an economic evaluation was carried out using PROSPER for gas lift and a base case (Natural Flow) and then a production forecast with the different scenarios was performed for six years. In technical comparison, PROSPER simulation results shows that Gas lift technique gave a higher production rates when compared with the Base Case (Natural Flow), and in terms of economic comparison by considering factors like: water cut and replacement of failed pump, gas lift system was preferred for proper production optimization techniques. However, gas lift was chosen for GT based on the availability of the readily compressed gas, higher life time expectance and lower installation and operational cost as compared to other artificial lift techniques.},
 year = {2015}
}

Copy | Download

TY  - JOUR
T1  - Gas Lift Technique a Tool to Production Optimization
AU  - Okotie Sylvester
AU  - Ikporo Bibobra
AU  - Ovuema Augustina
Y1  - 2015/06/11
PY  - 2015
N1  - https://doi.org/10.11648/j.ogce.20150303.12
DO  - 10.11648/j.ogce.20150303.12
T2  - International Journal of Oil, Gas and Coal Engineering
JF  - International Journal of Oil, Gas and Coal Engineering
JO  - International Journal of Oil, Gas and Coal Engineering
SP  - 41
EP  - 46
PB  - Science Publishing Group
SN  - 2376-7677
UR  - https://doi.org/10.11648/j.ogce.20150303.12
AB  - The paramount aim of every oil and gas operator is to minimize both capital and operating costs and more importantly, maximize cumulative oil production in the most cost-effective manner for the entire field. This is to say that a true production optimization requires an operator to take a logical look at the field’s production systems from the subsurface to surface facilities. Therefore, when an oil well fails to flow naturally, it requires an assisted lifting system. Gas lift system is one of the few artificial lift methods used to start up a well and/or increase the producing life of oil and gas wells. The principle of Gas lift is by lowering the hydrostatic pressure inside the production tubing through the injection of lighter fluid into the annulus. GT oil field in the Niger Delta was used as case study; it has a production life span of eighteen years. To increase GT production and extend the lifetime of the field, the operator decided to start up an artificial lift project with an aim of optimize its production. To select the best artificial lift method to use, an economic evaluation was carried out using PROSPER for gas lift and a base case (Natural Flow) and then a production forecast with the different scenarios was performed for six years. In technical comparison, PROSPER simulation results shows that Gas lift technique gave a higher production rates when compared with the Base Case (Natural Flow), and in terms of economic comparison by considering factors like: water cut and replacement of failed pump, gas lift system was preferred for proper production optimization techniques. However, gas lift was chosen for GT based on the availability of the readily compressed gas, higher life time expectance and lower installation and operational cost as compared to other artificial lift techniques.
VL  - 3
IS  - 3
ER  -

Copy | Download

Author Information

Okotie Sylvester

Department of Petroleum and Natural Gas Engineering, Federal University of Petroleum Resources, Effurun, Nigeria
Ikporo Bibobra

Department of Chemical and Petroleum Engineering, Niger Delta University, Amasoma, Nigeria
Ovuema Augustina

Department of Petroleum and Natural Gas Engineering, Federal University of Petroleum Resources, Effurun, Nigeria

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Okotie Sylvester, Ikporo Bibobra, Ovuema Augustina. (2015). Gas Lift Technique a Tool to Production Optimization. International Journal of Oil, Gas and Coal Engineering, 3(3), 41-46. https://doi.org/10.11648/j.ogce.20150303.12

Copy | Download

ACS Style

Okotie Sylvester; Ikporo Bibobra; Ovuema Augustina. Gas Lift Technique a Tool to Production Optimization. Int. J. Oil Gas Coal Eng. 2015, 3(3), 41-46. doi: 10.11648/j.ogce.20150303.12

Copy | Download

AMA Style

Okotie Sylvester, Ikporo Bibobra, Ovuema Augustina. Gas Lift Technique a Tool to Production Optimization. Int J Oil Gas Coal Eng. 2015;3(3):41-46. doi: 10.11648/j.ogce.20150303.12

Copy | Download

@article{10.11648/j.ogce.20150303.12,
  author = {Okotie Sylvester and Ikporo Bibobra and Ovuema Augustina},
  title = {Gas Lift Technique a Tool to Production Optimization},
  journal = {International Journal of Oil, Gas and Coal Engineering},
  volume = {3},
  number = {3},
  pages = {41-46},
  doi = {10.11648/j.ogce.20150303.12},
  url = {https://doi.org/10.11648/j.ogce.20150303.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20150303.12},
  abstract = {The paramount aim of every oil and gas operator is to minimize both capital and operating costs and more importantly, maximize cumulative oil production in the most cost-effective manner for the entire field. This is to say that a true production optimization requires an operator to take a logical look at the field’s production systems from the subsurface to surface facilities. Therefore, when an oil well fails to flow naturally, it requires an assisted lifting system. Gas lift system is one of the few artificial lift methods used to start up a well and/or increase the producing life of oil and gas wells. The principle of Gas lift is by lowering the hydrostatic pressure inside the production tubing through the injection of lighter fluid into the annulus. GT oil field in the Niger Delta was used as case study; it has a production life span of eighteen years. To increase GT production and extend the lifetime of the field, the operator decided to start up an artificial lift project with an aim of optimize its production. To select the best artificial lift method to use, an economic evaluation was carried out using PROSPER for gas lift and a base case (Natural Flow) and then a production forecast with the different scenarios was performed for six years. In technical comparison, PROSPER simulation results shows that Gas lift technique gave a higher production rates when compared with the Base Case (Natural Flow), and in terms of economic comparison by considering factors like: water cut and replacement of failed pump, gas lift system was preferred for proper production optimization techniques. However, gas lift was chosen for GT based on the availability of the readily compressed gas, higher life time expectance and lower installation and operational cost as compared to other artificial lift techniques.},
 year = {2015}
}

Copy | Download

TY  - JOUR
T1  - Gas Lift Technique a Tool to Production Optimization
AU  - Okotie Sylvester
AU  - Ikporo Bibobra
AU  - Ovuema Augustina
Y1  - 2015/06/11
PY  - 2015
N1  - https://doi.org/10.11648/j.ogce.20150303.12
DO  - 10.11648/j.ogce.20150303.12
T2  - International Journal of Oil, Gas and Coal Engineering
JF  - International Journal of Oil, Gas and Coal Engineering
JO  - International Journal of Oil, Gas and Coal Engineering
SP  - 41
EP  - 46
PB  - Science Publishing Group
SN  - 2376-7677
UR  - https://doi.org/10.11648/j.ogce.20150303.12
AB  - The paramount aim of every oil and gas operator is to minimize both capital and operating costs and more importantly, maximize cumulative oil production in the most cost-effective manner for the entire field. This is to say that a true production optimization requires an operator to take a logical look at the field’s production systems from the subsurface to surface facilities. Therefore, when an oil well fails to flow naturally, it requires an assisted lifting system. Gas lift system is one of the few artificial lift methods used to start up a well and/or increase the producing life of oil and gas wells. The principle of Gas lift is by lowering the hydrostatic pressure inside the production tubing through the injection of lighter fluid into the annulus. GT oil field in the Niger Delta was used as case study; it has a production life span of eighteen years. To increase GT production and extend the lifetime of the field, the operator decided to start up an artificial lift project with an aim of optimize its production. To select the best artificial lift method to use, an economic evaluation was carried out using PROSPER for gas lift and a base case (Natural Flow) and then a production forecast with the different scenarios was performed for six years. In technical comparison, PROSPER simulation results shows that Gas lift technique gave a higher production rates when compared with the Base Case (Natural Flow), and in terms of economic comparison by considering factors like: water cut and replacement of failed pump, gas lift system was preferred for proper production optimization techniques. However, gas lift was chosen for GT based on the availability of the readily compressed gas, higher life time expectance and lower installation and operational cost as compared to other artificial lift techniques.
VL  - 3
IS  - 3
ER  -

Copy | Download