VAALCO produces first offshore oil from Gabon’s Dentale formation

Offshore staff

HOUSTON - VAALCO Energy (NYSE: EGY) has delivered first oil from the North Tchibala field offshore Gabon.

The North Tchibala 1-H well came online at just over 3,000 b/d. It was drilled to 11,160 ft (3,401 m) MD, targeting the previously undeveloped Dentale reservoir.

Although the Dentale formation is productive in fields onshore Gabon, this well represents the first Dentale production from that horizon offshore Gabon, VAALCO says.

The well started initially by means of an electrical submersible pump (ESP), but was subsequently allowed to produce naturally. It is not producing formation water or hydrogen sulfide, and has a strong flowing tubing pressure of over 1,000 psi (69 bar).

VAALCO plans to continue production without artificial lift while monitoring surface and downhole pressures.

This was the second well drilled and placed on production at the company’s new Southeast Etame/North Tchibala (SEENT) platform in 260 ft (79 m) water depth.

Currently, the jackup Transocean Constellation II is mobilizing to the Avouma/South Tchibala platform to perform workover operations to replace ESPs on three existing development wells, two of which are offline.

Steve Guidry, VAALCO's chairman and CEO, said: “We will monitor production and reservoir performance over the next few months while we complete our workover program at the Avouma/South Tchibala platform to determine the appropriate timing to drill a follow-up North Tchibala development well.

“We believe this field has significant reserve upside and results from this well over the coming months are important as this will allow us to better understand the potential of the newly producing reservoir."


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