First oil has commenced from the Wassana oil field in the G10/48 concession in the Gulf of Thailand, operator KrisEnergy announced.
Wassana is expected to achieve peak production of approximately 10,000 bo/d by year’s end. KrisEnergy says additional development wells will be drilled and completed by Shelf Drilling’s Key Gibraltar jackup rig.
Up to 15 development wells are planned for Wassana including 14 producer wells and one water disposal well. The wells will produce to a mobile offshore production unit, the Ingenium, with oil transferred to the Rubicon Vantage floating storage offloading vessel. The field also includes a catenary anchor leg mooring (CALM) buoy. Its hull is moored to the seabed using six mooring chain legs guided through rotating chain stoppers and connected to high capacity power anchors.
The G10/48 block spans 4696sq km over the Southern Pattani Basin in water up to 60m deep. The G10/48 area contains three other discoveries – Niramai and Mayura from 2009 and Rayrai, which was drilled in March 2015. KrisEnergy said in April that the Rayrai-1 exploration well intersected approximately 50ft true vertical depth of net oil-bearing sandstones. The discovery is 2.25km north of the 2009 Niramai discovery.
KrisEnergy operates G10/48 with 89% working interest. Its partner Palang Sophon Offshore holds the remaining 11%. Wassana’s first oil is a major milestone for KrisEnergy as it is the company’s first as an operator. KrisEnergy took over as operator of the G10/48 block in May 2014. A month later, a final investment decision for the Wassana field was approved.
“Work is now underway to bring another five wells on stream and to optimize production in this initial wave of drilling,” said Chris Gibson-Robinson, KrisEnergy’s Director of Exploration & Production. “This field is the first of a series of KrisEnergy-operated developments we are working on in Thailand, Cambodia and Indonesia.”
KrisEnergy has made major investments in Asia. In March, KrisEnergy moved to increase its stake offshore Vietnam by taking over operatorship and all of Eni Vietnam’s interest in block 105. In August 2014, the company bought Chevron’s Cambodian business, including Cambodia block A, for US$65 million. There KrisEnergy is reviewing a development concept for the Aspara oil field.
Image: G10/48 block from KrisEnergy.
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