The Rubiales Oil Field is an oil field located in the Llanos Basin, Meta Department, Colombia. It was discovered in 1981 and was first developed, operated and owned by Pacific Rubiales Energy. The field produces heavy oil (11.3-14.5° API gravity) from the C7 unit of the Carbonera Formation.ANH, 2006, p.7 The porosity of the reservoir formation is between 28 and 33% and the permeability ranges from 3 to 5 Darcies.Gómez et al., 2010, p.5 In 2008, 22.817.163 barrels were produced from the field.García González et al., 2009, p.160 The total proven reserves of the Rubiales oil field are 4.38 billion barrels (588 million tonnes), and production in 2017 is .
Change of operator Since July 1, 2016, the field is operated by Ecopetrol. Rubiales, el campo petrolero más productivo del país, empieza a ser operado por Ecopetrol - Portafolio It is the most productive field of the country. En 20 campos se produce el 66 % del petróleo del país
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