Cayley Field – consists of two wells tied back to the Montrose BLP Platform via a bundle consisting of 8” Production, 4” Water Injection and 3” Gas lift.
Shaw Field – consists of three wells tied back to the Montrose BLP Platform via individual pipelines circa 17km long consisting of 10” production, 8” water injection and 4” gas lift.
Leak Testing – numerous requirements to carry out simultaneous pipeline and tie-in spool leak tests during the project to reduce schedule and vessel time.
Strength Testing – requirement to carry out simultaneous pipeline strength testing of the Shaw pipelines at different test pressures with through water data upload capability via ROV umbilical
In addition to the mobilisation and utilisation of the ‘standard’ pigging and testing equipment, to get around the challenges of the intricate testing requirements, the Altus Test Manifold was designed and constructed in-house. The manifold specification is:
All work scopes were successfully carried out over an 18-month period and multiple vessel mobilisations, with excellent customer feedback upon completion of the overall project.
The Altus Intervention manifold was successfully designed and utilised multiple times throughout the project, including successful use of the optical through water data transfer. This greatly reduced vessel duration and overall client schedule
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