PROCEEDINGS, 41st Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 22-24, 2016 SGP-TR-209 An Expanded Matrix to Scope the Technical and Economic Feasibility of Waste Heat Recovery from Mature Hydrocarbon Fields Jawhara AL-Mahrouqi (*), Gioia Falcone(**) (*)Imperial College London, South Kensington Campus, London SW7 2AZ, UK Now with Petroleum Development Oman (PDO) (**)Clausthal University of Technology, Agricolastraβe 10, 38678 Clausthal-Zellerfeld, Germany
[email protected] Keywords: co-production, waste heat recovery, decision matrix ABSTRACT Substantial volumes of water are co-produced with hydrocarbons during the latter stages of an oil or gas field’s producing life. Such volumes require costly treatment schemes and inevitably force operators to cease field production, which leaves potentially recoverable hydrocarbons in the ground. However, the flowing temperature of these waste streams is high enough for it to be exploited for district heating and/or power generation. This opens up opportunities for mature hydrocarbon fields with the potential of extending their lifespan, improving their ultimate recovery, providing an alternative renewable low carbon energy source and reducing their operational expenditure. With several feasibility studies and pilots supporting the feasibility of this concept, the objective of this paper is to identify key technical and economic parameters of waste heat recovery from mature and abandoned hydrocarbon fields, both onshore and offshore. These are translated into a set of indices, forming a practical screening matrix for geothermal feasibility. With reference to an existing decision matrix (Soldo and Alimonti, 2015) which was designed to select between two heat extraction technologies, the new matrix is an expanded version, with wider applicability.