cr137903

Glenaras 26 (GA26) was drilled in the southern portion of Authority to Prospect (ATP) 2019, the areal extent of which has been subdivided into Potential Commercial Areas (PCAs) 314 and 315. The well is located approximately 65km northeast of Longreach in central Queensland and was designed to be a peripheral pilot production well on the southern margin of the greater Glenaras multi-lateral pilot. The primary objective of GA26 was to maximise water extraction from the coals and sands of the Late Permian Betts Creek Beds to enhance depressurisation of the coals for achieving commercial coal seam gas flow. Prior to drilling operations commencing, a 13 3/8 conductor casing was installed to 13.4mRT. GA26 spudded at 09:30hrs on 11th June 2022 with Silver City Rig 23. The 12-1/4 surface hole was drilled vertically to 200mRT into the Allaru Mudstone and 9-5/8 surface casing run and cemented to 197.57mRT. After setting surface casing, the 8-3/4 BHA was run in hole and the cement plug drilled out. Drilling of the 8-3/4 borehole continued, with testing of slow circulation rates (SCRs) occurring at 250m, until the Total Depth of 1,039.8mRT was reached at 10:15hrs on 14th June 2022. SLB then conducted wireline logging and finally after circulating the hole clean, a mixed 7 casing string was run. An integrated Stage Tool and Expandable Cement Packer (ECP) was placed immediately above the R1 Seam in the Upper Betts Creek Beds at 910.89mRT (top) to 916.62mRT (base). Beneath the ECP, 7 slotted casing was run across the entire length of the Betts Creek Beds to 1,033.26mRT to allow commingled production from the coals and sands of the full Betts Creek Beds section with the purpose of maximising water extraction and depressurisation of the coals. Above the ECP, the remainder of the hole was blanked off with 7 casing. Silver City Rig 23 was released at 4:30hrs on the 16th June 2022 with GA26 cased and suspended as a future peripheral pilot production well in the greater Glenaras multi-lateral pilot.