Casabe Alliance is a production sharing contract project between a service company and Ecopetrol (Colombian national oil company) that looks for incremental production in Casabe field. The service company plays the role of technology transfer partner and Ecopetrol is the field operator. The contract includes Casabe, Casabe Sur, and Peñas Blancas fields.
Peñas Blancas was a mature field with only four active producer wells with a total oil production of 250 B/D. A field redevelopment plan (FRDP) was proposed to increase the production up to 4,000 BOPD; this included the drilling of 18 oil producer wells, the construction of the gathering network pipelines, implementation of water injection system for waterflooding and the construction of fluid treatment facilities.
Initially, the FRDP contemplated a treatment station in Peñas Blancas; however, the economic analysis showed lower profit than expected by the partners. To overcome these marginal finance results, alternatives were evaluated showing that an integrated multiphase pumping station (multiphase pump and a multiphase meter) was operationally and economically viable. The main objective of this paper is to show the decision-making process followed by the design and construction of the multiphase flow station in Peñas Blancas field. It highlights the milestones, consequences, limitations, benefits, and the operation philosophy that affects the field operation.