State Gas Limited Stock Market Press Releases and Company Profile
Operational Update - Reid's Dome Project
Operational Update - Reid's Dome Project

Brisbane, Dec 9, 2019 AEST (ABN Newswire) - State Gas Limited (googlechartASX:GAS) is pleased to provide a further update on field activities at its Reid's Dome Gas Project (PL 231).

Highlights:

- Serocold-1 spudded on 6 December 2019, with drilling and testing expected to be completed within approximately two weeks.

- Currently at 269m depth at Serocold-1, pulling out of hole to DST the Cattle Creek Sandstone.

- Nyanda-4 well placed on production test on 4 December and is currently de-watering.

- The increasing casing pressure being recorded at Nyanda-4 during early de-watering indicates that the well has already commenced desorption of gas from the coals and is a positive sign for future gas production.

- Aldinga East-1A (Cattle Creek Formation) wellhead gas sample tested by an independent laboratory confirmed 97.88% methane (i.e. pipeline quality gas).

- Essential data is being acquired for the Company's Target 2021 Gas-to-Market strategy.

As outlined in the Company's release of 3 December 2019, the field season at the Reid's Dome Gas Project is drawing to an exciting end with frenetic activity underway to complete work required to inform the planning of the Company's Target 2021 Gas-to-Market strategy.

Serocold-1

Located in the centre of PL 231, approximately half way between the Aldinga East-1A and Nyanda-4 wells (refer Figure-1*), Serocold-1 has been located to provide important information about the extent of coals and gas throughout the Reid's Dome Gas Project.

As the final well in the current field program, Serocold 1 was spudded on 6 December and is currently drilling ahead at 269m. After a 7" surface casing was set and cemented, Silver City Drilling 'SCD' Rig #25 is currently drilling below the 7" casing using a 6-1/8" drill bit.

Total Depth is planned for 1200m, within the prospective Reid's Dome Beds coal interval.

Nyanda-4

The first dedicated coal seam gas well in the Reid's Dome Gas Project, Nyanda 4, was drilled by State Gas in November 2018.

Nyanda-4 was placed on production test on 4 December 2019, with water being pumped-down in a controlled manner to decrease the hydrostatic pressure within the well in order to release gas in the coal seams.

The water level in Nyanda-4 is currently 233m below the well surface level, and the de-watering process has reduced the bottom hole pressure to 377 psi.

In a positive sign for future gas production from Nyanda-4 and the Reid's Dome coals, the increasing casing pressure being recorded within the Nyanda-4 well during early de-watering indicates that the well has already commenced desorption of gas from the coals.

Aldinga East-1A

The testing being conducted at Aldinga East 1A was completed on 5 December and included four successful Drill Stem Tests.

The pressure data acquired during testing reconfirmed the presence of gas within the Cattle Creek Formation sandstone at Aldinga East-1A.

A down-hole gas sample taken from the well was analysed by an independent laboratory as containing 97.88% methane (i.e. pipeline quality gas).

Permeability testing at Aldinga East-1A has proven difficult, with the sandstones within the well having absorbed significant drilling brine during the shut-in period of two months prior to testing. This absorption of drilling brine appears to have impaired the surrounding permeability of the reservoir within the well, reducing the reliability of permeability testing.

Target 2021 Gas-to-Market Strategy

This testing and drilling information being acquired during the 2019 field program at Reid's Dome is providing essential information for State Gas to design the pilot project for 2020 in order to optimise gas production and reserve upgrades in line with the Company's Target 2021 Gas-to-Market strategy.

*To view tables and figures, please visit:
https://abnnewswire.net/lnk/HLP4E0H8


About State Gas Limited

State Gas Limited ASX:GASState Gas Limited (ASX:GAS) is a Queensland-based developer of the Reid's Dome gas field, originally discovered during drilling in 1955, located in the Bowen Basin in Central Queensland. State Gas is 100%-owner of the Reid's Dome Gas Project (PL-231) a CSG and conventional gas play, which is well-located 30 kilometres southwest of Rolleston, approximately 50 kilometres from the Queensland Gas Pipeline and interconnected east coast gas network.

Permian coal measures within the Reid's Dome Beds are extensive across the entire permit but the area had not been explored for coal seam gas prior to State Gas' ownership. In late 2018 State Gas drilled the first coal seam gas well in the region (Nyanda-4) into the Reid's Dome Beds and established the potential for a significant coal seam gas project in PL 231. The extension of the coal measures into the northern and central areas of the permit was confirmed in late 2019 by the Company's drilling of Aldinga East-1A (12 km north) and Serocold-1 (6 km to the north of Nyanda-4).

State Gas is also the 100% holder Authority to Prospect 2062 ("Rolleston-West"), a 1,414 km2 permit (eight times larger than PL 231) that is contiguous with the Reid's Dome Gas Project. Rolleston-West contains highly prospective targets for both coal seam gas (CSG) and known conventional gas within the permit area. It is not restricted by domestic gas reservation requirements.

The contiguous areas (Reid's Dome and Rolleston-West), under sole ownership by State Gas, enable integration of activities and a unified super-gasfield development, providing economies of scale, efficient operations, and optionality in marketing.

State Gas is implementing its strategic plan to bring gas to market from Reid's Dome and Rolleston-West to meet near term forecast shortfalls in the east coast domestic gas market. The strategy involves progressing a phased appraisal program in parallel with permitting for an export pipeline and development facilities to facilitate the fastest possible delivery of gas to market. State Gas' current focus has been to confirm the producibility of the gas through production testing of the wells.

 

abnnewswire.com 


Contact

Lucy Snelling
Chief Executive Officer
Phone: 0439 608 241
e-mail: lucy@stategas.com

Richard Cottee
Executive Chairman
Phone: 0458 517 850
e-mail: richard@stategas.com



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