Jansz Flowline Hot Tap Review

Atteris performed a concept study for Chevron to assess the technical feasibility of a zero downtime hot tap tie-in to the Jansz pipeline and define a forward work plan to close minor technology gaps in the concept. Atteris demonstrated that a full cut-in to the Jansz pipeline could be achieved without production impact, subject to incremental development of a selected vendor’s hot tap and plug isolation technology.

A Chevron compression project was reconsidering a number of compression options including a shallow water compression platform concept. This required a cut-in to the existing Jansz flowline at a water depth in the range of 80 – 100m. A number of cut-in options were being assessed which entailed significant downtime, so Chevron wished to consider the feasibility of a zero-downtime hot tap concept.