Thanks for the response You3OAte, much appreciated. I’ve gone back through this year’s announcements and extracted all commentary relating to all header houses – they’re listed further down if anyone is interested in a summary of how things have evolved throughout the year. Here is my take from these announcements:
Header houses 1 & 2
Both were reported to be star performers, producing at 105% of steady state targets
Header houses 3, 4
#3 came online 15 April, #4 in June. As at 30 September both were reported to be taking longer to ramp up. Both header houses still ramping up according to the presentation the other day. I agree about header house 4 perhaps being a problem child, though the company has previously acknowledged that it is smaller than the others due to it being close to the MU boundary. In Slide 18 of the latest preso, (Option 3 – Stage 1.5) header house #4 has been quietly dropped, whereas it is shown in the previous slide under Options 1 & 2. Does this mean it will be shut down, as it’s not viable? Don’t know.
Header houses 5, 6 & 7
Too early to tell how these are going. #5 only came online in early November, #6 expected to come online around now and #7 by the end of the month
Flow rates, porosity & permeability
Throughout all announcements production flow rates have been stated as meeting expectations. Porosity and permeability has also been confirmed
Product target for CY2016
CY2016 production target in 2 June was stated as being 200,000 to 300,000 lbs. On 30 September this was revised down to 135,000 to 160,000 to align with delivery commitments. Was this alignment forced upon them due to unexpected lower production rates or was it intentional? Hard to say for sure.
Conclusion
So these are the key facts as reported by the company. Given we’ve only had header houses 1 to 4 online for any meaningful length of time, and half of them (1 & 2) have been performing exceptionally well, whilst the other half (3 & 4) seem to be having some issues, I think it’s too early to say that Stage 2 header houses 8 to 10 are being brought online early due to underlying production problems and not as stated by the company, to lower operating costs and deliver higher average uranium head grade. It will be key to see the next update on 3 and 4 for an indication of improving performance plus some result on 5, 6 & 7. With some length of production history being all 7, we will have a much better idea of the performance of the whole MU1
Activities Report - 31 March 2016
Since the initial injection of O2 and CO2 at the first header house unit on 2 December 2015, production well flow-rates are meeting expectations and substantially confirming the permeability of the ore body, a key risk factor in ISR operations. Production is still early in the ramp-up phase; the second header house came online on 27 January 2016 and the third header house came online on 15 April 2016. Stage One full production will see up to seven header houses in simultaneous operation.
The minimum target level of NaHCO3 (sodium bicarbonate) rates in the operating header houses was first reached on 10 March 2016. Since that date the uranium head grade has consistently increased by an average of 3.3% per day (170% over the past 6 weeks) across both header houses, substantially confirming the solubility of the uranium and consistent with expectations drawn from the results of pre-operation leach testing performed between 2009 and 2012.
Head grades are already at 72% of forecast life of mine average head grades (38mg/L per production unit) and are at 61% of the equivalent peak head grade (45mg/L per production unit) which is expected to be reached at all seven header houses during the first 12 months of operations. The 4th header house is expected to come online during June and the remaining header houses are forecast to progressively come online during the second half of the 2016 calendar year.
Announcement – 2 June 2016
Production ramp up continues at the Lance Projects with the fourth header house coming online in early June 2016.
When minimum target levels of NaHCO3 (sodium bicarbonate) have been reached, the Company has seen a consistent increase in uranium production from each operating header house. The Company expects the fifth header house to come online in the third quarter of 2016 and all seven header houses are planned to be constructed and commissioned before the end of the calendar year 2016. Minimum target levels of sodium bicarbonate saturation are expected to be reached for Header House 6 and Header House 7 early in calendar year 2017.
While the project is still in the early stages of ramp-up, production performance to date at the first two header houses indicate that between 200,000 to 300,000 pounds of U3O8 will be produced, dried and drummed for 2016, with production from five header houses at various levels of ramp-up. Meaningful amounts of uranium will not be extracted from Header Houses 6 and 7 until early in 2017. Based on current uranium production ramp up rates, the targeted production level of 600,000 to 700,000 lbs per annum for Stage 1 will be achieved in the first half of 2017.
Announcement - 12 July 2016
Production for the June quarter was primarily from header houses 1 and 2. Whilst header houses 3 and 4 were successfully commissioned during the June quarter, meaningful quantities of uranium from both header houses commenced during July.
Average flowrates from extraction wells at header houses 1 and 2 are in excess of 20gpm (as per forecasts) and combined uranium head grade from these two header houses now exceed the life of mine average head grade of 38 mg/L. As a result, these two header houses are now producing uranium at 105% of steady state target rates.
Activities Report - 30 September 2016
Since the initial injection of O2 and CO2 at the first header house unit on 2 December 2015, production well flow-rates continue to meet expectations and have substantially confirmed the permeability of the ore body, a key risk factor in ISR operations. The Central Processing Plant (CPP) and well field systems continue to operate as expected.
Each header house experiences slightly different rates of ramp-up and Peninsula is currently seeing header houses 3 and 4 taking longer to ramp-up than originally projected. Header house 4 is also considerably smaller than the other Stage 1 header houses due to its positioning near mine unit regulatory boundaries. Average flowrates from extraction wells at the first four header houses remain consistent with the planned rate of 20 GPM, substantially confirming the porosity and permeability of the Lance orebody. Production for the 2016 calendar year is expected to be between 135,000 and 160,000lbs U3O8 and is now aligned to delivery commitments under existing term contracts rather than the currently weak spot market.
Announcement - 8 December 2016
Construction on the 5th and 6th header houses was recently completed with header house 5 coming online on 2 November 2016 and header house 6 scheduled to come online in the next week. Construction activity is almost complete on header house 7, which is planned to be ready for start-up by the end of December 2016.
The Company will continue with the roll out of additional header houses, as construction of header houses 8 to 10 will allow flowrates across all production wells to be varied, optimising operating costs and increasing average uranium head grade.
Presentation – 8 December 2016
“Investing in the construction of header houses 8 to 10 allows flow rates to be reduced – lowering operating costs and delivering higher average uranium head grade”
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