Page 20: of Offshore Engineer Magazine (Nov/Dec 2019)

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FEATURE Marginal Fields hub screening. These may then be rapidly screened under What are the benefits of designing various scenario constraints – e.g. the chosen pipeline size for a portfolio?

limits to accommodate throughput, whilst optimizing ar- Working over a portfolio with simpli? ed designs and rival temperature and pressure. standardized equipment reduces deployment cost, owner-

In the OMF, the principal formations occur at widely ship cost and project risk – improving project economics. varying depths, with widely varying ? uid composition and This effectively reduces the minimum economic ? eld size a wide range of pressures and temperatures. A different ap- hurdle. By utilizing reusable equipment, the cost is further proach is thus needed. reduced. Designing for reuse is one of the principles be- “It’s about deciding which design options are most rel- hind the UK’s Oil & Gas Technology Center’s (OGTC) evant for a hub,” says Paul Lindop, project coordinator for Tie Back of the Future initiative. The OGTC is actively the OMF Special Interest Group, a consortium of major collaborating with the OMF participants to make such operators in the region. TROVE is used to identify which initiatives happen.

design bases are most applicable for all unsanctioned The approach is equally relevant for an existing instal- discoveries – delivering value through “design once, use lation looking to form a strategic plan to exploit satellite many”, taking everything from single well natural ? ow resources or a new hub where there is insuf? cient existing through to multiple wells with water injection and gas lift. capacity or limited remaining ? eld life at the existing hub.

Once screened and ranked the most value adding design For an emergent hub, the tools are the same but by op- bases can be taken through a front-end engineering study timizing new hub locations, strategies can be formed by to provide the foundation of a “development playbook” the participants based on shared data optimizing all assets for the basin. within the capture area.

Figure 4: Undeveloped discoveries and risked prospect sizes by distance from Piper field. 20 OFFSHORE ENGINEER OEDIGITAL.COM