Moscow. November 11. Unsuccessful drilling in block L offshore Cuba cost Zarubezhneft 100 million euros, said Deputy General Director for Geology and development Igor Afanasyev at the conference “exploration 2015”.
“In 2011, the company made a detailed 3D-seismic survey. Was contoured by a magnificent trap, which looked very good: in length 40 km, width 8 km, Were allocated to the most promising areas in the Jurassic sediments, which were recognized as part of deposits, coming on land, where there were already discovered large proven oil reserves. Were conducted all possible tests of seismic studies, which revealed clear anomalies that indicate the presence of hydrocarbons. Resources the plot was very promising,” he said.
“We have started drilling, but in Cretaceous sediments began catastrophic absorption. The well was stopped for geological reasons: they opened a carbonate reservoir with a highly developed crevice. To drill further just wasn’t possible”, – said Afanasiev.
“The cost of the well was more than 100 million euros,” – said the Deputy head of “Zarubezhneft”.
According to him, a similar problem was faced by other company seeking to drill offshore Cuba. “Around the same time in the same region were drilling three more wells – the result was the same: stop for Geology in the Cretaceous deposits”, – said Afanasiev.
As reported, Zarubezhneft started drilling the first well offshore Cuba in December 2012. It was planned that drilling of the well, the length of which will reach more than 6 km, will be completed in June 2013. “Zarubezhneft” emphasized the high probability of discovery of new deposits of hydrocarbons within block L.
Failure hasn’t stopped the company. In may 2014, Rosneft, Zarubezhneft and Cupet, the Cuban signed a package of documents on joint cooperation in the field explore the possibilities of implementing projects in Cuba.