Frontera, CGX discover hydrocarbons at Wei-1, Corentyne block

Frontera Energy Corp. discovered oil at the Wei-1 well on Corentyne block, about 200 km offshore from Georgetown, Guyana. The company successfully finished drilling operations and expects to release the drilling rig in early July 2023.

The well targeted Maastrichtian, Campanian, and Santonian aged stacked sands within channel and fan complexes in the northern section of the block and encountered 210 ft of hydrocarbon bearing sands in the Santonian horizon (OGJ Online, Jan. 23, 2023). Frontera acquired wireline logs and extensive core samples from the Santonian, however, due to a tool failure downhole and a new tool not being available, oil samples were not obtained. The rock and fluid properties of the Santonian will be analyzed by an independent third-party laboratory over the next 2-3 months to define net pay and a basis for the evaluation of this interval.

The previously announced discovery in the Maastrichtian and the Campanian intervals has been updated to 77 ft of net pay. Fluid samples were retrieved from the Campanian and Maastrichtian indicating the presence of light crude in the Campanian and sweet medium crude oil in the Maastrichtian.

The data acquisition program included wireline logging, MDT fluid samples, and sidewall cores throughout the various intervals. Over the next few months, results will be integrated into the geologic and geophysical models to form an updated view of the entire northern portion of the Corentyne block.

The northern portion of the block includes the channel complexes discovered by the Kawa-1 and Wei-1 wells, and a prospective central channel complex, which is yet to be evaluated.

Frontera is majority shareholder of CGX Energy Inc. and joint venture partner with CGX in the block.