Offshore Vietnam

Rosneft’s subsidiary Rosneft Vietnam has started drilling of the exploration well PLDD-1X at Block 06.1 off the coast of Vietnam.

Rosneft said that it is the company’s first individual international offshore drilling project as an operator.

The company will use the HAKURYU-5 drilling rig owned and operated by Japan Drilling to drill the well, which has a design depth of around 1,380m.

The sea depth in the area is around 162m and the expected recoverable reserves of natural gas in the PLDD geological structure are estimated at 12.6 billion cubic metres, with 0.6mt of gas condensate.

"After completing drilling of the PLDD-1X well, Rosneft plans to drill another exploration well in Block 05.3/11."

After completing drilling of the PLDD-1X well, Rosneft plans to drill another exploration well in Block 05.3/11, also in the Nam Con Son basin.

By incorporating two wells into the same programme, the company will be able to reduce timelines for implementation of the works.

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Rosneft chairman of the management board Igor Sechin said: "I am sure that the experience gained in Vietnam will be used by the company not only in its activity in the southern seas; these competences will find application in planning and implementation of upstream projects in remote areas.

"I would especially like to emphasise that this project is an example of advanced cooperation with the company’s partners in the Asia-Pacific: Petrovietnam and ONGC."

Later this year, the company proposes to shoot broadband 3D seismic of its existing Block 6.1 operatorship to improve ongoing production recovery.

The survey will also allow the company to explore potential in deeper prospects.

Rosneft Vietnam owns 35% of Block 06.1 and is serving as the project operator.

Block 05.3/11 is 100% owned by Rosneft Vietnam and its resources are currently estimated at around 40 billion cubic metres of gas and nine million tonnes of gas condensate.

Image: The expected recoverable reserves of natural gas in the PLDD structure are estimated to be 12.6 billion cubic metres. Photo: © Rosneft.