Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo

Joel Kabesa Kilungu; Dominique Wetshondo Osomba; El-Richard Molodi Empi; Shams Diambu Mbudi; Romulus Mawa Tuzingila; Link Bukasa Muamba; Junior Mbambo Bokitshi

doi:doi:10.11648/j.ogce.20190706.11

Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo

Joel Kabesa Kilungu, Dominique Wetshondo Osomba, El-Richard Molodi Empi, Shams Diambu Mbudi, Romulus Mawa Tuzingila, Link Bukasa Muamba, Junior Mbambo Bokitshi

Published in International Journal of Oil, Gas and Coal Engineering (Volume 7, Issue 6)

Received: 16 September 2019 Accepted: 29 October 2019 Published: 20 November 2019

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Abstract

The quantity of hydrocarbons initially in place and the technique of exploitation employed in the reservoir determine the period of an oilfield. But the quantity of hydrocarbons in a reservoir defines as a preliminary the type of mechanism drainage which governs the pressure of the oilfield. And this pressure is the key parameter of the oil production. Thus, the mechanism of drainage is a motive element which shows the performance of an oil reservoir during the production. During the oil production in the Upper Pinda reservoir of the Libwa field, the mechanism of drainage used was that of gases in solution. It was noticed that during the production, an abrupt drop of the pressure of 2670 psia with 1567 psia and a cumulated production of oil of 239805 Stb at the end of the year 2018. However, certain studies undertaken in this field revealed the presence of a gas cap which could compensate for the mechanism with dissolved gas but which seemed to be ineffective during the drop pressure. Thus through our study, we put in evidence the existing quantity of gas in the primary gas cap which are worth 1.09414 MMscf under the basic conditions and with the factor of the primary gas cap (m) with 0.0018 who is scarcely and the new gas cap which is created starting from the addition of a quantity of dissolved gas released during the production of which the quantity of this gas is estimated at 1.86329 MMscf under the basic conditions and, the new factor of the gas cap (m) is worth 0.0059 and the value of this new factor of the gas cap (m) is almost null too. Taking into consideration these result, it is shown that this new gas cap will be always ineffective with the performance of the reservoir. On this it is necessary that the factor of the gas cap reaches a value at least equal to 10 to completely replace the mechanism with gas dissolved in the Upper Pinda reservoir in the Libwa field.

Published in	International Journal of Oil, Gas and Coal Engineering (Volume 7, Issue 6) This article belongs to the Special Issue Advances in Enhanced Oil Recovery for Conventional and Unconventional Reservoirs
DOI	10.11648/j.ogce.20190706.11
Page(s)	109-117
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), 2019. Published by Science Publishing Group

Keywords

Mechanism of Drainage, Material Balance Equation, Oil-Gas Ratio, Drop Pressure, Gas-Cap Factor

References

[1]	Pierre Donnez, “Essentials of Reservoir engineering”, Editions Technip; volume 2, 512 pp, 2006.
[2]	Joel Kabesa Kilungu, Dominique Wetshondo O, et al, “Estimation of the Performance and Prediction of the Decline Time of Reservoir: A Case study of Libwa field, Democratic Republic of Congo”, Volume 5, Issue 6, June – 2019, International Journal of Advances in Scientific Research and Engineering IJASRE-33237, 58-69 pp.
[3]	Tarek Ahmed, “Reservoir engineering hand book”, second edition, Gulf Professional Publishing, 1188 pp, 2001.
[4]	C. SALLE, J. DEBYSER, “Formation of the oilfield: Study of the fundamental geological phenomenon”, Editions Technip-Paris, 237pp, 1976.
[5]	René Cossé, “The oilfield”, Editions Technip-Paris, 325 pp, 1988.
[6]	NNAEMEKA EZEKWE, “Petroleum Reservoir Engineering Practice”, Library of Congress Cataloging-in-Publication Data, 801pp, 2010.
[7]	LP. DAKE, “Fundamentals of reservoir engineering”, ELSEVIER, Developments in Petroleum Science, 8, 498pp, 1978.
[8]	Chapman, R. E, “Petroleum Geology, a Concise Study”. Elsevier Scientific Publishing Co., Amsterdam, 67-76 pp, 1973.
[9]	BOYUN GUO, William C. Lyons, Ali Ghalambor, “Petroleum Production Engineering: a computer-assisted approach”, Elsevier Science & Technology Books, 287 pp, February 2007.
[10]	Martin J. Blunt, “Reservoir Performance Predictors”, Master of Science in Petroleum Engineering Centre for Petroleum Studies, Department of Earth Science and Engineering, Imperial College London, 307 pp, January 2012.

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APA Style

Joel Kabesa Kilungu, Dominique Wetshondo Osomba, El-Richard Molodi Empi, Shams Diambu Mbudi, Romulus Mawa Tuzingila, et al. (2019). Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo. International Journal of Oil, Gas and Coal Engineering, 7(6), 109-117. https://doi.org/10.11648/j.ogce.20190706.11

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ACS Style

Joel Kabesa Kilungu; Dominique Wetshondo Osomba; El-Richard Molodi Empi; Shams Diambu Mbudi; Romulus Mawa Tuzingila, et al. Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo. Int. J. Oil Gas Coal Eng. 2019, 7(6), 109-117. doi: 10.11648/j.ogce.20190706.11

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AMA Style

Joel Kabesa Kilungu, Dominique Wetshondo Osomba, El-Richard Molodi Empi, Shams Diambu Mbudi, Romulus Mawa Tuzingila, et al. Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo. Int J Oil Gas Coal Eng. 2019;7(6):109-117. doi: 10.11648/j.ogce.20190706.11

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@article{10.11648/j.ogce.20190706.11,
  author = {Joel Kabesa Kilungu and Dominique Wetshondo Osomba and El-Richard Molodi Empi and Shams Diambu Mbudi and Romulus Mawa Tuzingila and Link Bukasa Muamba and Junior Mbambo Bokitshi},
  title = {Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo},
  journal = {International Journal of Oil, Gas and Coal Engineering},
  volume = {7},
  number = {6},
  pages = {109-117},
  doi = {10.11648/j.ogce.20190706.11},
  url = {https://doi.org/10.11648/j.ogce.20190706.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20190706.11},
  abstract = {The quantity of hydrocarbons initially in place and the technique of exploitation employed in the reservoir determine the period of an oilfield. But the quantity of hydrocarbons in a reservoir defines as a preliminary the type of mechanism drainage which governs the pressure of the oilfield. And this pressure is the key parameter of the oil production. Thus, the mechanism of drainage is a motive element which shows the performance of an oil reservoir during the production. During the oil production in the Upper Pinda reservoir of the Libwa field, the mechanism of drainage used was that of gases in solution. It was noticed that during the production, an abrupt drop of the pressure of 2670 psia with 1567 psia and a cumulated production of oil of 239805 Stb at the end of the year 2018. However, certain studies undertaken in this field revealed the presence of a gas cap which could compensate for the mechanism with dissolved gas but which seemed to be ineffective during the drop pressure. Thus through our study, we put in evidence the existing quantity of gas in the primary gas cap which are worth 1.09414 MMscf under the basic conditions and with the factor of the primary gas cap (m) with 0.0018 who is scarcely and the new gas cap which is created starting from the addition of a quantity of dissolved gas released during the production of which the quantity of this gas is estimated at 1.86329 MMscf under the basic conditions and, the new factor of the gas cap (m) is worth 0.0059 and the value of this new factor of the gas cap (m) is almost null too. Taking into consideration these result, it is shown that this new gas cap will be always ineffective with the performance of the reservoir. On this it is necessary that the factor of the gas cap reaches a value at least equal to 10 to completely replace the mechanism with gas dissolved in the Upper Pinda reservoir in the Libwa field.},
 year = {2019}
}

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TY  - JOUR
T1  - Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo
AU  - Joel Kabesa Kilungu
AU  - Dominique Wetshondo Osomba
AU  - El-Richard Molodi Empi
AU  - Shams Diambu Mbudi
AU  - Romulus Mawa Tuzingila
AU  - Link Bukasa Muamba
AU  - Junior Mbambo Bokitshi
Y1  - 2019/11/20
PY  - 2019
N1  - https://doi.org/10.11648/j.ogce.20190706.11
DO  - 10.11648/j.ogce.20190706.11
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  - 109
EP  - 117
PB  - Science Publishing Group
SN  - 2376-7677
UR  - https://doi.org/10.11648/j.ogce.20190706.11
AB  - The quantity of hydrocarbons initially in place and the technique of exploitation employed in the reservoir determine the period of an oilfield. But the quantity of hydrocarbons in a reservoir defines as a preliminary the type of mechanism drainage which governs the pressure of the oilfield. And this pressure is the key parameter of the oil production. Thus, the mechanism of drainage is a motive element which shows the performance of an oil reservoir during the production. During the oil production in the Upper Pinda reservoir of the Libwa field, the mechanism of drainage used was that of gases in solution. It was noticed that during the production, an abrupt drop of the pressure of 2670 psia with 1567 psia and a cumulated production of oil of 239805 Stb at the end of the year 2018. However, certain studies undertaken in this field revealed the presence of a gas cap which could compensate for the mechanism with dissolved gas but which seemed to be ineffective during the drop pressure. Thus through our study, we put in evidence the existing quantity of gas in the primary gas cap which are worth 1.09414 MMscf under the basic conditions and with the factor of the primary gas cap (m) with 0.0018 who is scarcely and the new gas cap which is created starting from the addition of a quantity of dissolved gas released during the production of which the quantity of this gas is estimated at 1.86329 MMscf under the basic conditions and, the new factor of the gas cap (m) is worth 0.0059 and the value of this new factor of the gas cap (m) is almost null too. Taking into consideration these result, it is shown that this new gas cap will be always ineffective with the performance of the reservoir. On this it is necessary that the factor of the gas cap reaches a value at least equal to 10 to completely replace the mechanism with gas dissolved in the Upper Pinda reservoir in the Libwa field.
VL  - 7
IS  - 6
ER  -

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Author Information

Joel Kabesa Kilungu

Department of Exploration-Production, Faculty of Oil, Gas and New Energies, University of Kinshasa, Kinshasa, Democratic Republic of Congo
Dominique Wetshondo Osomba

Department of Geosciences, Faculty of Science, University of Kinshasa, Kinshasa, Democratic Republic of Congo
El-Richard Molodi Empi

Department of Exploration-Production, Faculty of Oil, Gas and New Energies, University of Kinshasa, Kinshasa, Democratic Republic of Congo
Shams Diambu Mbudi

Department of Exploration-Production, Faculty of Oil, Gas and New Energies, University of Kinshasa, Kinshasa, Democratic Republic of Congo
Romulus Mawa Tuzingila

Department of Exploration-Production, Faculty of Oil, Gas and New Energies, University of Kinshasa, Kinshasa, Democratic Republic of Congo
Link Bukasa Muamba

Department of Exploration-Production, Faculty of Oil, Gas and New Energies, University of Kinshasa, Kinshasa, Democratic Republic of Congo
Junior Mbambo Bokitshi

Department of Exploration-Production, Faculty of Oil, Gas and New Energies, University of Kinshasa, Kinshasa, Democratic Republic of Congo

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APA Style

Joel Kabesa Kilungu, Dominique Wetshondo Osomba, El-Richard Molodi Empi, Shams Diambu Mbudi, Romulus Mawa Tuzingila, et al. (2019). Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo. International Journal of Oil, Gas and Coal Engineering, 7(6), 109-117. https://doi.org/10.11648/j.ogce.20190706.11

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ACS Style

Joel Kabesa Kilungu; Dominique Wetshondo Osomba; El-Richard Molodi Empi; Shams Diambu Mbudi; Romulus Mawa Tuzingila, et al. Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo. Int. J. Oil Gas Coal Eng. 2019, 7(6), 109-117. doi: 10.11648/j.ogce.20190706.11

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AMA Style

Joel Kabesa Kilungu, Dominique Wetshondo Osomba, El-Richard Molodi Empi, Shams Diambu Mbudi, Romulus Mawa Tuzingila, et al. Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo. Int J Oil Gas Coal Eng. 2019;7(6):109-117. doi: 10.11648/j.ogce.20190706.11

Copy | Download

@article{10.11648/j.ogce.20190706.11,
  author = {Joel Kabesa Kilungu and Dominique Wetshondo Osomba and El-Richard Molodi Empi and Shams Diambu Mbudi and Romulus Mawa Tuzingila and Link Bukasa Muamba and Junior Mbambo Bokitshi},
  title = {Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo},
  journal = {International Journal of Oil, Gas and Coal Engineering},
  volume = {7},
  number = {6},
  pages = {109-117},
  doi = {10.11648/j.ogce.20190706.11},
  url = {https://doi.org/10.11648/j.ogce.20190706.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20190706.11},
  abstract = {The quantity of hydrocarbons initially in place and the technique of exploitation employed in the reservoir determine the period of an oilfield. But the quantity of hydrocarbons in a reservoir defines as a preliminary the type of mechanism drainage which governs the pressure of the oilfield. And this pressure is the key parameter of the oil production. Thus, the mechanism of drainage is a motive element which shows the performance of an oil reservoir during the production. During the oil production in the Upper Pinda reservoir of the Libwa field, the mechanism of drainage used was that of gases in solution. It was noticed that during the production, an abrupt drop of the pressure of 2670 psia with 1567 psia and a cumulated production of oil of 239805 Stb at the end of the year 2018. However, certain studies undertaken in this field revealed the presence of a gas cap which could compensate for the mechanism with dissolved gas but which seemed to be ineffective during the drop pressure. Thus through our study, we put in evidence the existing quantity of gas in the primary gas cap which are worth 1.09414 MMscf under the basic conditions and with the factor of the primary gas cap (m) with 0.0018 who is scarcely and the new gas cap which is created starting from the addition of a quantity of dissolved gas released during the production of which the quantity of this gas is estimated at 1.86329 MMscf under the basic conditions and, the new factor of the gas cap (m) is worth 0.0059 and the value of this new factor of the gas cap (m) is almost null too. Taking into consideration these result, it is shown that this new gas cap will be always ineffective with the performance of the reservoir. On this it is necessary that the factor of the gas cap reaches a value at least equal to 10 to completely replace the mechanism with gas dissolved in the Upper Pinda reservoir in the Libwa field.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - Estimation of the New Gas-cap to the Performance of the Reservoir of the Oil Field Libwa, Offshore of the Democratic Republic of Congo
AU  - Joel Kabesa Kilungu
AU  - Dominique Wetshondo Osomba
AU  - El-Richard Molodi Empi
AU  - Shams Diambu Mbudi
AU  - Romulus Mawa Tuzingila
AU  - Link Bukasa Muamba
AU  - Junior Mbambo Bokitshi
Y1  - 2019/11/20
PY  - 2019
N1  - https://doi.org/10.11648/j.ogce.20190706.11
DO  - 10.11648/j.ogce.20190706.11
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  - 109
EP  - 117
PB  - Science Publishing Group
SN  - 2376-7677
UR  - https://doi.org/10.11648/j.ogce.20190706.11
AB  - The quantity of hydrocarbons initially in place and the technique of exploitation employed in the reservoir determine the period of an oilfield. But the quantity of hydrocarbons in a reservoir defines as a preliminary the type of mechanism drainage which governs the pressure of the oilfield. And this pressure is the key parameter of the oil production. Thus, the mechanism of drainage is a motive element which shows the performance of an oil reservoir during the production. During the oil production in the Upper Pinda reservoir of the Libwa field, the mechanism of drainage used was that of gases in solution. It was noticed that during the production, an abrupt drop of the pressure of 2670 psia with 1567 psia and a cumulated production of oil of 239805 Stb at the end of the year 2018. However, certain studies undertaken in this field revealed the presence of a gas cap which could compensate for the mechanism with dissolved gas but which seemed to be ineffective during the drop pressure. Thus through our study, we put in evidence the existing quantity of gas in the primary gas cap which are worth 1.09414 MMscf under the basic conditions and with the factor of the primary gas cap (m) with 0.0018 who is scarcely and the new gas cap which is created starting from the addition of a quantity of dissolved gas released during the production of which the quantity of this gas is estimated at 1.86329 MMscf under the basic conditions and, the new factor of the gas cap (m) is worth 0.0059 and the value of this new factor of the gas cap (m) is almost null too. Taking into consideration these result, it is shown that this new gas cap will be always ineffective with the performance of the reservoir. On this it is necessary that the factor of the gas cap reaches a value at least equal to 10 to completely replace the mechanism with gas dissolved in the Upper Pinda reservoir in the Libwa field.
VL  - 7
IS  - 6
ER  -

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