Drilling of the second well in the Búzi hydrocarbon block is now complete, and the well should enter the testing phase in the next few days.
Two natural gas exploration wells were drilled in the Búzi block. The drilling of the second, designated BS-2 (Búzi Supercial-2) was interrupted as a result of Covid-19 prevention measures.
At the time of interruption, the well, situated one thousand meters from the first well (BS-1), was 836 metres deep out of a total of 1,548 anticipated.
A source from the National Petroleum Institute (INP) told ‘Notícias’ that testing would determine the existence or otherwise of natural gas, and its possible respective quantity.
The first (BS-1) well was sunk last year to a total depth of 1,567 metres, achieved on March 10, 2020. The well revealed the occurrence of natural gas. At this point in time, production tests to confirm the discovery are awaited.
The purpose of drilling a second well is to assess the lateral continuity of the geological formations showing signs of natural gas, both in BS-1 and in Búzi-1, which was sunk by Gulf-Amoco in 1962 and discovered natural gas in this location.
The two wells are provided for in the programme agreed in the concession contract signed between the Ministry of Mineral Resources and Energy and Buzi Hydrocarbons PTE Limitada (BHPL) in 2010.
In the first survey period, BHPL reprocessed 300 kilometres of pre-existing two-dimensional (2D) seismic survey; carried out the reinterpretation of 1,650 km of pre-existing 2D seismic data, as well as the acquisition, processing and interpretation of a further 600 km of 2D seismic data.
The concession contract signed with BHPL is subdivided into three sub-periods of exploration, totalling eight years, which has been extended for a further 12 months to allow the completion of the activities foreseen in the second and third exploration periods.
