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Eni (Agip) Djambala Sounda

ENI Djambala Sounda

Republic of Congo

Landmark: Equipment delivered in 40 weeks from order

The field development consists of three independent reservoirs, namely, Kitina, Djambala and Sounda. The initial contract for the Djambala and Sounda fields was for two subsea wells at each location. Two 6" pipelines were used to carry the produced fluids back to the Kitina host platform for processing and onward via a 14" export pipeline to the Djeno onshore terminal 40 miles (65 km) away. The PLEMs were designed to allow round-trip pigging, and the system was designed to allow expansion to other areas to the north of Djambala by means of a removable pigging loop.

Sounda was not developed, and the two subsea trees and PLEM were used on a more productive find at Djambala South. Only one subsea tree was installed at Djambala North. The production at Djambala South was enhanced by the addition of a water-injection tree and later an additional production tree, which was installed in 2004.

In 2005 an addition production tree was ordered which was scheduled to be installed at the end of 2006 together with a simplified water-injection tree in connection with the Djambala South.

The system was designed for diver-assist installation and diverless operation. The horizontal tree design used on the Bouri project was reused with a minimum of changes, minimizing the engineering and allowing this project to achieve a fast-track schedule of only 40 weeks from contract award to delivery for the first two subsea trees and manifold. The subsea trees have integral protective structures, and the PLEMs are designed to be installed on a standard 30" wellhead housing which serves as the foundation pile.

  • Contract Award: 1997 (Ph I); 2001 (Ph II); 2003 (Ph III); 2005 (Ph IV)
  • Sales: Dunfermline, U.K.
  • Fabrication Trees: Dunfermline, U.K.
  • Fabrication Controls: Kongsberg, Norway
  • Service Base: Aberdeen, Scotland, and Bergen, Norway 
  • Host Type: Platform
  • Contract Type: EPC