Norwest Energy has successfully obtained a cement bond log for the Lockyer Deep-1 well, which is part of a plan to continue using the Ensign Rig 970 at the Western Australian project.
Last week the company advised that milling operations had successfully removed cement from within the 5-1/2-inch casing from a depth of 2420 m to just above the casing float collar.
This followed the company’s announcement on 27 September, where it reported that during casing cementing operations, the cement was not displaced into the annulus due to a suspected wiper plug held up in the casing hanger.
This resulted in cement remaining within the 5-1/2-inch production casing, with only minimal cement in the production annulus.
Norwest Energy advised that once remedial cementing operations are complete the rig will be released and a final cement bond log, combined with a vertical seismic profile, will be obtained with the wireline unit only on site.
The plan is to conduct production testing as soon as possible after the well operations are completed.
The Ensign 970 rig has remained on location for the milling operations, and Norwest said the resulting delay to well completion is not expected to materially affect the timing of production testing of the Kingia Sandstone reservoir.
At this stage, costs associated with drilling the Lockyer Deep-1 well have remained with the joint venture (JV) authorisation for expenditure of around $14.5 million.
The joint venture is targeting late fourth quarter 2021 however it might be delayed until early 2022.
The Lockyer Deep-1 is located waiting exploration permit EP368, a joint venture between Norwest (20 per cent) and Energy Resources (80 per cent).
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