Wei-1 well offshore Guyana finds oil in target reservoirs

June 14, 2023
CGX Energy says the exploration and appraisal well on the Corentyne block has reached TD of 20,450 ft.

Offshore staff

TORONTO, Canada – CGX Energy says the Wei-1BP1 exploration and appraisal well on the Corentyne block offshore Guyana has reached TD of 20,450 ft, after encountering oil in Maastrichtian and Campanian reservoirs.

These were secondary targets, drilled by the initial Wei-1 wellbore: in these regions, the well delivered around original 71 ft of net oil pay.

A bypass wellbore (Wei-1BP1) was then drilled from 18,757 ft to TD, intersecting the primary Santonian targets in the western complex in the northern part of the Corentyne block.

LWD data and cuttings suggest multiple hydrocarbon shows in the Santonian interval.

CGX sees the results as encouraging and in line with pre-drill expectations, with the well confirming its geological and geophysical assessment of the block.

The revised cost estimate for the program, including completing the logging runs, finish well operations, and release the rig, is $190-195 million.

06.14.2023

Courtesy CGX and Frontera's "Joint Technical Presentation On Guyana-Suriname Basin, Corentyne Block, and Integrated Well Results" presentation, December 2023
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