Downhole Oil and Water Seperation: a New Start

Offshore China in the Cao Fei Dian 11-2 field (FCD 11-2), Bochai Bay, Joint Venture Partners Kerr-McGee China Petroleum Ltd (KMCPL) and China National Offshore Oil Corp. (CNOOC) were looking for original solutions to manage their water handling constraints. Downhole oil and water seperation was investigated, with the goal of injecting most of the produced water downhole to alleviate surface processing requirements. This paper presents the completion design selected, results and equipment performance (to date), lessons learned and future applications.