MARGINAL NORTH SEA FIELDS DEVELOPED BY SUBSEA TIE BACKS
The use of subsea completions tied back to existing platforms has allowed the development of marginal fields in the U.K. sector of the North Sea (Fig. 1). Contractual agreements between various operators permit production from the Staffa field and the Lyell field to flow to the Ninian Southern platform. The lower capital expenditure provided an economic incentive to develop these small fields.