Buru Energy Ltd spudded the Miani 1 oil exploration well in L 08, located in the Canning Basin, on 2 October 2019. The well was drilled by the "NGD 405" land rig and had a revised planned total depth (TD) of 3,000 m. On 4 November 2019 Buru reported that it was plugging and abandoning the well, after logging indicated the hydrocarbon shows encountered were within tight reservoir units, and therefore immovable. Analysis will be undertaken to determine the significance of the shows observed.  TD was reached on 29 October 2019, at 3,006 m in the Frasnian Clastics section. Elevated mud gas readings and oil shows were observed in a section of dolomitised limestone between 2,970 and 2,990 m. Buru ran logging operations over the interval to assess the hydrocarbon indications.  On 23 October 2019 Buru reported that it was running a wiper trip over the Anderson Formation shales, to condition the hole for logging. The wiper trip was required as the first attempt at a logging run was unable to pass below 1,650 m. On 29 October, Buru further reported that wireline logs were not possible in the formation due to poor hole conditions. The lower section was evaluated with LWD tools.  Initial log results indicated the lower Nullara Carbonate may be prospective, though the well had not yet penetrated this unit. Therefore, it was planned that once the wiper trip was completed, the well would be deepened to around 3,000 m to evaluate this section. Logging would then be undertaken at the new total depth.  Buru reported that thick units of tight limestones, with dolomite sections, were encountered during drilling. However, the expected vuggy porosity zones were not encountered.  Miani 1 was targeting what was previously known as the âHotdogâ prospect, which is a carbonate sag feature, with a reservoir target in the Nullara Reef unit, sourced by the Laurel Carbonates. The prospect is well defined from 3D seismic. Estimated recoverable reserves, best case, are reported at 17 MMbo.  The well was spudded as planned, being scheduled to spud in early-October 2019. Site construction was reported to be well advanced as of late-July 2019. Environmental clearances and heritage approvals were achieved by July 2019.  The well lies in the L 08 permit, which contains the Sundown, Terrace West and Lloyd oil fields, discovered in 1982, 1985 and 1987 respectively. All three have ceased production or are shut-in.  L 08, which covers an area of 326 sq km, was awarded on 22 October 1984. Buru Energy Ltd holds 100% interest and operatorship of the licence.
Miani 1 expl. (Buru Energy) in L 08 block, TD=3006 m in the Frasnian Clastics section. Elevated mud gas readings and oil shows were observed in a section of dolomitised limestone between 2970 and 2990m. P&A oil shows.