EnSys Yocum
Providing Software and Services for Oil Field Performance Improvement

Phone: (781) 274-8454 | Email: info@ensysyocum.net | Downstream contact: martin@tallett.co

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Water Management Study for Unocal in Serang, Indonesia

Field Background:  EnSys Yocum was contracted by Unocal to assess current field operations and recommend system modifications to increase capacity and meet water disposal requirements for the Serang, Indonesia offshore facility.  In the Serang field, 21 offshore oil wells produced a total of 63,000 barrels/day of oil and water. The summary fluid characteristics were: Crude […]

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Oversized Gas-oil Separator Design Project in Duri Field (Sumatra), Indonesia

Background: Caltex and Texaco selected EnSys Yocum to evaluate installation options for separation facilities in their 106,000 bpd Duri (Sumatra), Indonesia oil field. A major obstacle to separation was the high viscosity oil-water emulsion.  This problem was further compounded by sand content exceeding 2 volume percent. The summary fluid characteristics were: Crude Oil: 19.0˚ API […]

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Case Study II: Surface line and gas-oil separator optimization for a Venezuelan heavy oil field (Hamaca)

Engagement Background:  The Venezuelan Hamaca oil field was one of four major projects underway in the Orinoco belt which involved the extraction of extra-heavy crude and bitumen deposits.  The 9° API extra-heavy Hamaca crude oil was diluted with naphtha to 16° API in order to lower its viscosity and enable the fluid to flow through […]

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Case Study I: Surface line and gas-oil separator optimization for a Venezuelan heavy oil field (Cabimas)

Engagement Background and Field Overview: The Venezuelan Cabimas oil field was originally developed by Shell Oil in 1917 and had declined over the years to a reservoir pressure of only 300 psig, with the facility operating at 30 psig in the gathering trunklines and flowing into booster stations at 1-3 psig. Because of the low […]

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