EnQuest optimizes older North Sea fields, prepares for Alma/Galia start-up

Offshore staff

LONDONEnQuest has provided an update on its UK North Sea operations in its latest results statement.

Following the re-start of drilling at the Thistle platform, the A61 well came onstream in May, followed by a new production well A62/53 earlier this month.

An electric submersible pump workover on well A59 is due to be completed during the current quarter, allowing this well to be restored to production.

Output from Thistle and the Deveron satellite has been restricted by the build-up of sand in separators, although this has now been cleaned out.

Later this year EnQuest plans two more production wells, one on Deveron and a crestal well in the western fault block.

First half production from the Dons/Ythan fields was down year on year, partly because of the need to shut in the W4 well due to scale build-up, although the well has since been brought back online.

EnQuest is reviewing further Dons drilling options to offset natural decline, and is analyzing the dynamic performance of the recently onstream Ythan field before committing to further drilling here.

At the Greater Kittiwake Area (GKA), the previously redundant Gadwall production well was successfully side tracked to an updip location and brought onstream this month with strong results.

At Goosander, another GKA satellite, chemical treatment has lifted production levels substantially.

As for new developments, the FPSO for the Alma/Galia project left the yard in Newcastle, northeast England, and is now moored at the field location and able to weathervane.

Subsea equipment has been tested from the vessel via the umbilicals. Commissioning of first oil systems is nearing completion and EnQuest anticipates first oil in the next few weeks.

The Galia production well has also been completed and tied into the production manifold.

Six wells should be brought onstream later this year in phases, and the W11 water injection well should also be completed. Power systems will be ramped up in a phased manner through the latter part of the year.

At the Kraken field, the fixed pipelines for the first two drill centers (DCs) have been installed on the seabed, while installation is under way of the mooring system for the FPSO, currently undergoing conversion at the shipyard in Singapore.

The turret/mooring buoy has been manufactured and is being transported to the field from Southeast Asia.

Following completion of the Kraken batch top-hole drilling program at DC1, the drilling rig is pre-drilling individual wells into the reservoir.

An appraisal well earlier this year on the Kraken West prospect confirmed the presence of oil and potential for upside. Evaluation continues.

08/20/2015

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