Vintage Energy advances Vali gas discovery testing
Vintage Energy Ltd. expects fracture stimulation of Vali-1 ST1 well in the Vali gas discovery of Cooper and Eromanga basins (ATP 2021), Queensland, to begin in early July (OGJ Online, Mar. 3, 2020).
Following successful casing pressure test on May 26, and successful cement bond log on May 10, the work confirmed wellbore integrity for the fracture treatment. A baseline temperature log was acquired which will aid in assessing effectiveness of fracture stimulation stages.
Condor Energy Services will perform the fracture stimulation and will mobilize to site later this month, subject to the service company’s schedule. Six stages are expected to be stimulated in Vali-1 ST1, five in the Patchawarra section, and one in the deeper Tirrawarra/Basal Patchawarra section. Gas-saturated zones to be fracture stimulated are at depths of 2,810-3,140 m.
Fracture stimulation is expected to take a week to complete. Flow testing will immediately follow, with potential gas flow rates recorded over several weeks. Results expected in early August. GPA Engineering has been engaged for concept design work on a pipeline connection and discussions with Santos regarding access to gas infrastructure have been initiated, as a successful economic outcome will prompt the company to have the well connected to nearby gas infrastructure, said Neil Gibbins, Vintage managing director,
Vintage is operator of ATP 2021 with 50% interest (OGJ Online, May 22, 2019). Joint venture partners are Metgasco Ltd. (25%), and Bridgeport (Cooper Basin) Pty Ltd. (25%).
