In November 2017 partner Ecopetrol reported the Brahma 1 exploration well located in the in the Tayrona (B) Block of the offshore South Caribbean Deformed Belt encountered non-commercial accumulation of hydrocarbons and was plugged and abandoned (P&A). The well reached a total depth (TD) of some 3,667 m (12,028 ft) on 25 August 2017. With an approximate spud date of 5 July 2017, the Brahma 1 had a proposed total depth (PTD) of some 4,000 m and it was drilled with the âPetrobras 10000â drillship (DS), presumably to appraise the Orca 1 discovery well (2014). Interest holders in the block are operator Petrobras with 40%, Ecopetrol with 30%, Repsol with 20% and Statoil with 10%. Repsol previously held 30% interest, however as of early September 2014 it farmed down 10% interest to Statoil. The 16,500 sq km Tayrona (B) Block is located in water depths of 50 m to 1,500 m. In March 2016, Ecopetrol reported plans for the high-interest Orca appraisal drilling program, initially slated for 2016, hoping offshore Caribbean will give Colombian a âboostâ in exploration. On 2 December 2014, Colombiaâs first deepwater discovery was announced with Petrobrasâs Orca 1 new-field wildcat (NFW). The well is located in the Tayrona Block, and was confirmed as a natural gas discovery. The operator reached a final total depth (TD) of 4,240 m in September 2014 and recent testing indicated natural gas from sandstones at a depth of 3,657 m (12,000 ft). The trap is a large four-way closure, some 460 sq km in size and resource estimates were reported at some 4Tcf of gas. The offshore well was spudded on 4 July 2014 using the âPlataforma Ocean Clipperâ rig in 674 m (2,211 ft) of water. It had a proposed total depth (PTD) of 4,775 m targeting the Siamana Formation.  The Orca 1 NFW is located 1.59 km southeast of the Santa Ana 1 well which was plugged and abandoned (P&A) by Mobil Oil Company back in late 1979.The operator planned to spud the well by the end of May 2014, however details were not released regarding the cause of the delay. Orca 1 NFW was originally scheduled for the 2013-2014 drilling program, as previously reported by Petrobras in early March 2012. The Diamond offshore drillship Ocean Clipper arrived in Colombia on 21 June 2014 to drill the well.
Colombia (South Caribbean Deformed Belt) Brahma 1 op. by PETROBRAS (40.0%, ECOPETROL 30.0%, REPSOL 20.0%, STATOIL 10.0%) in Tayrona (B) block