Carnarvon Energy has announced that the Valaris JU-107 jack-up drilling rig is currently en-route to the Buffalo-10 location. Drilling is expected to commence within a week.
Buffalo-10 is to be drilled offshore Timor-Leste within the TL-SO-T 19-14 Production Sharing Contract (PSC) in around 30 metre water depth.
The well is being drilled to test for the presence of commercial quantities of hydrocarbons (oil) that could ultimately result in a re-development of the field.
The Valaris JU-107 jack-up mobile offshore drilling unit (MODU) has been contracted to undertake the Buffalo-10 drilling campaign.
The estimated time to drill and complete the well is around 35 days (success case, trouble free).
The base case well design is:
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drill 36” x 26” hole and set 30” x 20” Conductor at around 120 metres;
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drill 17 ½” hole and set 13 ?” Surface Casing at around 800 metres;
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drill 12 ¼” hole and set 9 ?” Intermediate Casing at around 2,800 metres; and
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drill 8 ½” hole and set 7” Production Liner to approximately 3,500 metres (success case)
In the success case, the Buffalo-10 well will be suspended with an unperforated liner, cemented across the reservoir in order for the well to be re-entered and completed for production at a future date.
Carnarvon acquired the permit containing the Buffalo field in 2016, and immediately set about reviewing the potential in the Buffalo field using technology that was not available at the time of the previous development.
Source: Carnarvon
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