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25.02.2018

AGR delivers Chim Sao and Blackbird oil field development FEED study

The operator had discovered a mid‐sized oil field in around 90m water depth and assigned a field development FEED study to investigate a range of development drilling options for wells placed in two separate structures.

What we did

We investigated a range of drilling and development options involving both 1 and 2 wellhead platforms and several optional subsea wells

A comprehensive report with recommendations was produced and this provided input to the integrated pre‐FEED study that started shortly thereafter

Utilized an in-house developed model for scenario based drilling time and cost estimates and an in‐house developed model for estimation of optimum placement of wellhead platforms and subsea templates.

andy-perchard-cropped Andy Perchard
MD APAC
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What did we deliver

  • A detailed offset well review
  • High level designs for platform and subsea development wells
  • Well time and cost estimates, incorporating seasonal (weather related) and technical contingency factors
  • Evaluation of optimum placement of wellhead platform(s) and subsea wells/clusters. A particular challenge in this field was a water depth that was right on the limit of large jack‐up access and reservoir(s) that covered a relative large area requiring extended reach drilling with most wells having to be drilled in a direction that was suboptimal in relation to the earth stress regime
  • Identification of well related risks and mitigation measures
  • Time and cost estimates for drilling and completions and also life of field well intervention
  • Evaluation of rig options, rig availability and rig rate projections
  • Input to the project master schedule