Capella field is the first extraheavy oil development in the North part of the Caguan-Putumayo basin in Colombia. In addition to the normal reservoirs complexities of any new field, by this condition, no analogous reservoirs and developments are available, putting and additional challenge on the field development.

The field has two main development targets, both clastic, one conventional high porosity-permeability reservoir (Mirador Formation, main objective) and one naturally fractured; both with extraheavy oil as reservoir fluid, 9 API degrees, with viscosities in the range of 2500 - 4000 centipoises at reservoir conditions.

It was defined that the development with horizontal wells, complemented with vertical wells is the best alternative for the field, but even the efficiency of this alternative, the primary expected recovery factor will be below 10%, caused mainly by the high viscosity of the oil. Best identified alternatives to increase the recovery factor were thermal stimulation with steam, both cyclic and continuous, being already some pilots done at the field.

New cyclic steam stimualtion (CSS) pilots are being defined to be implemented on year 2015, having as main goal the definition of best conditions to implement the CSS around the field and the efficiency of the methodology on different areas and/or reservoirs.

This paper presents geological characteristics of the field, production mechanism and behavior, principal development conditionings, main uncertainties and details of the field development strategy.

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