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The Rubiales Oil Field is an
oil field A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form when kerogen (ancient plant matter) is created in surrounding rock by the prese ...
located in the
Llanos Basin The Llanos Basin () or Eastern Llanos Basin () is a major sedimentary basin of in northeastern Colombia. The wikt:onshore, onshore foreland basin, foreland on Mesozoic rift basin covers the departments of Colombia, departments of Arauca Departmen ...
,
Meta Department Meta () is a department of Colombia. It is close to the geographic center of the country, to the east of the Andean mountains. A large portion of the department, which is also crossed by the Meta River, is covered by a grassland plain known ...
,
Colombia Colombia, officially the Republic of Colombia, is a country primarily located in South America with Insular region of Colombia, insular regions in North America. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuel ...
. 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 The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water: if its API gravity is greater than 10, it is lighter and floats on water; if less than 10, it is heavier and sinks ...
) from the C7 unit of the Carbonera Formation.ANH, 2006, p.7 The
porosity Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%. Strictly speaking, some tests measure ...
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 Proven reserves (also called measured reserves, 1P, and reserves) is a measure of fossil fuel energy reserves, such as oil and gas reserves and coal reserves. It is defined as the "quantity of energy sources estimated with reasonable certaint ...
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 Ecopetrol, formerly known as Empresa Colombiana de Petróleo S.A. () is the largest and primary petroleum company in Colombia. As a result of its continuous growth, Ecopetrol forms part of the Fortune Global 500 and was ranked 346. In the 2020 ...
.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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References


Bibliography

* * * Oil fields of Colombia Geography of Meta Department {{Colombia-stub