Concept+ 2.0 - The Revolution of Small and Marginal Fields

Abstract

The development of small and marginal fields is becoming progressively more important in mature oil and gas provinces. During the low oil price environment starting in 2015, the challenging economic climate required going beyond conventional boundaries to develop small and marginal fields; hence a concept was tested further through “Concept+ Workflow”. In 2019, “Concept+2.0 Workflow” was introduced with the incorporation of Design to Value (D2V) principles. Among the elements in “Concept+2.0 Workflow” was design replication through the “Design One Build Many (D1BM)” concept, with the primary focus on one standardized fit-for-purpose topsides design. With the right mind set, such development will not only technically feasible, but also economically attractive and value creative. The first element of this approach is the Lightweight Structure (LWS) with a targeted weight topsides. A long term EPCIC contract will be established based on the generic D1BM fit-for-purpose functional facilities design to provide economies of scale. The second element is on the Target Cost Setting and Target Schedule Ready for Rig (RFR) which ascertains the EPCIC capability to compete and provide the optimum Design to Value approach for the development. Throughout, an integrated approach and disciplined project management have been essential for maintaining a cost effective and timely execution of Concept+ as well as Concept+2.0. Results have clearly illustrated the success of this approach in Concept+, leading to successful execution of various small and marginal fields as well as capturing the best practices and lesson learnt to be emulated. This paper reviews the above-mentioned applications and highlights the seamless integration of the efforts of various departments and multi-disciplinary teams.