Denison begins five-well drilling program in Queensland

Denison Gas Ltd. has started a five-well drilling program to support production and reserves growth across its Denison North and South Project areas.The wells are targeting a variety of plays in Bowen basin, Queensland, Australia, consisting of conventional, tight gas, and coal seam gas within known gas fields as well as new formations within prospective areas, the company said in a release Feb. 28.

The initial well will be the horizontally drilled Punchbowl Gully-14 in the 620-sq-km Denison South area. The well lies adjacent to the successful Punchbowl Gully-13 well drilled and completed in 2023 which achieved a stabilized flow rate of about 9.5 terajoules/day (8.20 MMscfd) on test. That well was drilled to a total measured depth of 2,845 m with about 1,100 m drilled in the target Aldebaran Sandstone. It was the first horizontally drilled, multi-staged fracture stimulated well in the Denison Trough.

Punchbowl Gully 13 will be connected into the Yellowbank Central Treatment Plant at Denison South.Following the completion of Punchbowl Gully-14, the Ventia Rig #101 will then move to execute a step-out appraisal well in the Punchbowl Gully field, two appraisal wells to be drilled underbalanced in the 539-sq-km Denison North area, and a dual lateral coal seam gas well in PL42 near Rolleston in Denison North.

The Rolleston well, once completed, will be placed on production providing a “proof of concept” pilot test to establish the potential of the coal seam gas in the field, the company said. The drilling program is expected to complete by end-May.