The mobilization is commencing earlier than previously anticipated due to the availability of the Marianas, a fourth generation Earl & Wright Sedco 700 design semi-submersible drilling unit that will be performing the intervention, the company said.
Camac Energy acquired a 60% contractual interest in the Oyo Field in April 2010 and Nigerian Agip Exploration is the Oyo Field’s operator.
Following commencement of production from the Oyo Field in December 2009, oil production from the Oyo #5 well has been decreasing due to higher than expected gas production from the well.
The intervention program is designed to address this gas breakthrough and improve oil production from the well, the company said.
The program includes the running of a suite of Schlumberger production logging tools, which will seek to determine the source of gas breakthrough, into the horizontal section of the wellbore.
This will be followed by an engineered polymer injection in zones with identified gas breakthrough which is designed to decrease gas production and increase oil flow from these zones.
The well intervention is expected to allow Oyo #5’s oil production to increase from approximately 3,500bopd currently to about 7,500bopd-9,500bopd for the next 12 months following completion of the intervention.
The intervention is also anticipated to provide valuable reservoir information that will assist in the completion design of new drilling in the Oyo Field.
