Optimizing Production in Brown Fields Using Re-Entry Horizontal Wells

S. I. Onwukwe, N. C. Izuwa, E. E. Ileaboya, K. K. Ihekoronye


Reviewing of some Niger Delta oil field reservoirs indicate that most of them are brown fields, thereby vulnerable to challenges such as; coning due to reduced size of the oil column, low oil production and lack of access to the residual oil trapped between existing wells of the brown field. Due to coning occurrences in the Niger-Delta brown oil field, most wells have been shut-in and a lot of recompletions are being made in order to combat this problem. To proffer solutions to these technical challenges of these brown oil fields, this study seeks to review the potentials of re-entry horizontal well technology and its viable application to optimizing oil production from brown oil field. Re-entry horizontal well Technology involves a method of converting an existing vertical well into an horizontal well to save cost as oppose to drilling a fresh horizontal well from the surface. The object of the re-entry well is to reduced cost, especially in areas where drilling costs are very high. The re-entry horizontal in this research was represented by a virtual horizontal well to study the potentials of producing brown fields. The simulation paradigm studied was Black oil with light oil type variation of 32O API. This article is therefore aimed at suggesting the conversion of existing vertical wells in the Niger-Delta into re-entry horizontal wells as a measure to optimize oil productionof these brown oil fields.


Brown fields; Conning; Reservoir simulation; Re-entry horizontal wells

Full Text:



Babadagli, T. (2001). EOR possibilities for development of a mature light- oil reservoir in Oman. Paper SPE 72110 Presented at the 2001 SPE Asia Pac. Imp. Oil Rec. Conf., Kuala Lumpur, Malaysia, Oct. 8-9.

Blaskovich, F. T. (2000). Historical problems with oil field rejuvenation. Paper SPE 62518 Presented at the 2000 SPE/AAPG Western Reg. Meet., Long Beach, CA, June 19-23.

Javed, M.S. (1995). Targeting new wells in a mature field. Paper SPE-29853-MS. Presented at the 1995 SPE Middle East Oil Show, Bahrain, Mar. 11-14.

Joshi, S. D. (1988). Augmentation of well productivity using slant and horizontal wells. Journal of Petroleum Technology, (June), 729-739.

Joshi, S. D. (1991). Horizontal well technology (pp.389-420). Tulsa, Oklahoma: Penn Well Publishing Company.

Joshi, S. D. (2003). Cost / benefit of horizontal wells. Paper SPE-83621-MS presentation at the SPE Western Regional/AAPG Pacific Section Joint Meeting held in Long Beach, California, U.S.A., 19-24 May.

Kabir, C. S., Agamini, M. O. & Holguin, R. A. (2008). Production strategy for thin-oil columns in saturated reservoirs. SPE-89755-PA. SPE Reservoir Evaluation & Engineering Journal, 11(1), 73-82, Feb.

Kimbrell, C. W. (2001). Produced water in Louisiana: Analyzing the magnitude of the problem. Proceedings of PTTC Symposium on Water Production, Baton Rouge, LA, April 5.

Loif, A. H., Papatzacos, P., & Skjaeveland, S. M. (2012). Critical rate for water coning: Correlation and analytical solutions. SPE 15855.

Muskat, M., & Wyckoff, R. D. (1935). An approximate theory of water coning in oil production (AIME, Trans. pp.114 & 144).

Onwukwe, S. I. (2012). A model approach of controlling coning in oil rim reservoirs. Journal of Petroleum Engineering and Technology, 2(1), 1-10.

Papatzacos, P., Herring, T. U., Martinsen, R., & Skjaeveland, S. M. (1989). Cone breakthrough time for horizontal wells. SPE Paper 19822, presented at the 64th SPE Annual Conference and Exhibition, San Antonio, TX, October 8–11.

Paris, S., Schijndel, L. V. & Wynne, M. (2008). NUGS position paper on oil rim development. Shell International Exploration and Production. Report EP-5203.

Schlumberger. (2010). Eclipse 2010 Reservoir Engineering Software, Schlumberger.

Syed, A. (2012). Mature fields and well revitalization. JPT, (January), 73-84.

Syed, A. (2009). Mature field revitalization. JPT, (January), 58-69.

Vo, D. T., Sukerim.,Widjaja, D. R., Partono, Y. J. & Clark, R. T. (1999). Development of thin oil columns under water drive: Serang field examples. SPE-54312-MS, presented at the SPE Asia-Pacific Oil & Gas Conference & Exhibition, Jakarta, Indonesia, April 20-22.

DOI: http://dx.doi.org/10.3968/11299


  • There are currently no refbacks.

Copyright (c) 2020 kingsley kelechi lhekoronye

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Share us to:   


  • How to do online submission to another Journal?
  • If you have already registered in Journal A, then how can you submit another article to Journal B? It takes two steps to make it happen:

1. Register yourself in Journal B as an Author

  • Find the journal you want to submit to in CATEGORIES, click on “VIEW JOURNAL”, “Online Submissions”, “GO TO LOGIN” and “Edit My Profile”. Check “Author” on the “Edit Profile” page, then “Save”.

2. Submission

  • Go to “User Home”, and click on “Author” under the name of Journal B. You may start a New Submission by clicking on “CLICK HERE”.

We only use three mailboxes as follows to deal with issues about paper acceptance, payment and submission of electronic versions of our journals to databases:
caooc@hotmail.com; aped@cscanada.net; aped@cscanada.org

 Articles published in Advances in Petroleum Exploration and Development are licensed under Creative Commons Attribution 4.0 (CC-BY)


Address:1055 Rue Lucien-L'Allier, Unit #772, Montreal, QC H3G 3C4, Canada.

Telephone: 1-514-558 6138
Website: Http://www.cscanada.net
E-mail:office@cscanada.net;  office@cscanada.org

Copyright © 2010 Canadian Research & Development Centre of Sciences and Cultures