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The Offshore Frontier

Kosmos Energy announces successful appraisal of gas discovery offshore Mauritania and Senegal

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Located in Mauritanian waters, approximately 5 km northwest, and 200 m downdip of the basin-opening Tortue-1 discovery well in approximately 2,800 m of water, Ahmeyim-2 was drilled to a total depth of 5,200 m. As anticipated, in the Lower Cenomanian and Albian, Ahmeyim-2 penetrated the seismic-inferred gas-water contacts, defining the field limit and extending the productive field area from approximately 50 sq km to 90 sq km. Furthermore, the well confirmed significant thickening of the gross reservoir sequences down structure and importantly, within the Lower Cenomanian, static fluid pressure communication between the Tortue-1, Guembeul-1 and Ahmeyim-2 wells.

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Shell delivers more Brazil deepwater production from Parque das Conchas

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Shell and its joint venture announced the start of oil production from the third phase of the deepwater Parque das Conchas (BC-10) development in Brazil's Campos Basin. Production for this final phase of the project is expected to add up to 20,000 barrels of oil equivalent per day (BOED) at peak production, from fields that have already produced more than 100 million bbls since 2009.

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Rigorous risk assessment, data-driven approach among keys to success in SIMOPS operations offshore Nigeria

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To drill a gas-injector well that would support two high-rate producing wells on the Agbami field offshore Nigeria, Chevron and Pacific Drilling decided to conduct two close-proximity SIMOPS drilling and completion operations. More than 80 million barrels of incremental production stood to be gained, but risks had to be identified and mitigated. “One of the things that we agreed upon early was to make data-driven decisions,” Jimmy Jeansonne, Operations Manager Drilling & Completions Operations for Chevron, said in a presentation at the 2016 IADC Drilling Africa Conference in Cape Town, South Africa, on 16 February. He cited this data- and information-driven approach to decision making as one of the critical factors that led to the project’s success.

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Subsea Safety System provides electrohydraulic control of subsea safety tree

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Halliburton has released the Dash 3-in. Subsea Safety System for electrohydraulic control of the company’s subsea safety tree. Previously, control was provided through direct hydraulic pressure from the surface. This latest edition to the Dash series employs the speed of electrohydraulic actuation in core safety functions while still providing full direct hydraulic redundant control of all functions. This helps to increase reliability and provide more cost-efficient operation and maintenance.

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