A Review of the Nigerian Energy Industry

Addax, Oriental, others announce flow testing of Okwok marginal field

21 April 2015, Lagos – Oriental Energy Resources Ltd (OERL) and its joint venture partners, Afren Energy Resources and Addax Petroleum have announced the completion and flow testing of their first development well, Okwok 13 in the Okwok Marginal Field in Oil Mining Lease (OML) 67.


An oil field worker hangs from an oil derrick outside of Williston, N.D.
An oil field worker hangs from an oil derrick outside of Williston, N.D.

This followed an extensive field appraisal programme, the acquisition and processing of a four-component seismic and the approval of the Field Development Plan (Okwok FDP) by the Department of Petroleum Resources (DPR) in early 2014.

According to a statement by the partners, the Okwok-13 development well was drilled in early 2015 to a total measured depth of 9,212 feet and  was  completed with over 1500 feet pay.
Following the completion, the well was successfully tested to reconfirm commercial deliverability and reservoir connectivity.

A facility-constrained rate of 5,400 barrels of oil per day (bopd), 24.5 deg API was tested on 36/64” choke with GOR of 355scf/bbl and wellhead pressure of 1,248psi.
The test data showed no evidence of depletion and preliminary analysis indicates significant reserves addition is confirmed by this well.

The well will be suspended in readiness for regular production when the planned Mobile Offshore Production Unit (MOPU) and the Okwok crude oil sales export pipeline are installed. The Okwok wellhead jacket was installed late 2014 and this permitted the drilling of this first development well.
The pipeline to transport Okwok processed crude over the 15 kilometre distance to Oriental’s Ebok Terminal has been procured and is currently awaiting installation.

Oriental Chairman, Muhammadu Indimi said “I am extremely pleased with the results of the testing of the Okwok-13 well at a rate over 5000 barrels per day of quality Nigerian crude, as it further confirms the commercial viability of the Okwok Field. The company looks forward to bringing Okwok production online within a short time. Produced Okwok crude will be stored for export in the Ebok Terminal Floating Storage and Offloading (FSO) Veer Prem operated by the Oriental JV”.
Okwok is the second asset that Oriental and its partners are developing under Farmout from ExxonMobil.
The Oriental JV also operates the nearby Ebok Field development where a number of major technological innovations were deployed.
The Ebok Field currently produces over 30,000 bopd.

– This Day

In this article

Join the Conversation