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Ibug'
a new Kimmeridge horizontal well, not a sidetrack from HH-1.
What would be different for Loxley? BB is planned after more well/s into and tests of the Kimmeridge, when they will confirm their decision to drill (or not).
'This extension will enable us to incorporate key future well and test information'
At HH they could just put in a new pad and drill once they have completed all the planning conditions - how many are left? Even if Loxley PP got overturned today there are 8 pre starting any work conditions to comply with, then build the site. For something of 'primary interest' why not get on with it now?
Northfork,
if pressure is a problem then solving the drill mud (if it is a problem) is a minor thing, as is not acidising, though that might affect flow rates - injecting into a fractured reservoir for pressure support is not that easy, well it's easy but getting it to do what you want may not be.
All they need to dl is to start building a new lay-by and it will add a couple of pence to the share price... simple
Some good discussion on here this morning, facts. not lemons and dogs, though I love both.
I am sure will we return to BB, the oil is there, matter as always of getting it out. This was the flagship, bigger than HH.
Question to PBOO, in your opinion would a retry using oil based mud do the trick, and would it be possible to unblock the fractures in any way?
penguins
"A simple question. Why not drill a new Kimmeridge horizontal well at HH"
They would need to drill a new sidetrack into the Kimmeridge, core it and log it. They would then need to carry out analysis of core and logs before they could decide where to drill it.
Sounds easy but takes time and money.
Ibug,
Not sure of your point but they could core then sidetrack anywhere, as if it's a neccessity they will need to do that at Loxley anyway.
UKOG didn't even bother to drill the HH-2z pilot through the Kimmeridge (like so many RNS'd 'plans') which would have given them decent log information which would have enabled a pretty good assessment as they have log to core comparison data at BB for the Kimmeridge.
But without any new data I would put it in the KL3 at HH (which if they get round to drilling a horizontal Iin the Kimmeridge is an odds on favourite anyway) from the Nutech analyses, based on 'pay' thickness of the KL and the fracture analysis through the shales and KLs.
penguins
Would you drill a horizontal well into the Kimmeridge without coring it first? Where would you dril? KL0, KL1, KL2, KL3, KL4 or KL5?
I can't see how they can go back to Broadford Bridge before 2023 at the earliest.
Priority 1 is they have to solve the issues at HH-2z, re-complete HH1, drill some more producers and maybe an injector at HH.
Priority 2 - probably Isle of Wight - possible big discovery (but risky) but would be a major boost - say drill late 2021/early 2022 (assuming planning refused, public inquiry et etc)
Priority 3 - Loxley/Godley Bridge/Dunsfold - 2022 - relatively target, relatively low (or lower) risk - but gas
Priority 4 - Broadfrod Bridge - 2023
THE main focus has to be on getting decent production at HH - the sweep I ran earlier this year didn't have a single punter guessing at less than 400 bopd and we're still nowhere near that. Any new drilling means even more fund raising......
Penguins
When we were invited into the site Steve Sanderson told us that the Starch based drilling mud and acid stimulation had blocked the fractures. HH1 was drilled with oil based mud and ukog got permission to use oil based mud for HH2.
Not sure what was used at Brockham or Balcombe.
Penguins,
Think you're right about the drilling mud argument being attributable to Paul Vonk.
Think it was that which led SS promptly to fire off an RNS contradicting PV.
Pboo,
Why did they put this in their March 2019 Final results then:
'Post well analysis concluded that the acidisation process, used to clean perforations and the near wellbore, likely released fine grained clay particles from the rocks, which then either blocked or significantly reduced the flow potential of the Kimmeridge's natural fractures.'
Nothing about the drilling mud. In fact I'm pretty sure that came from Vonk who was about to drill a well that would also test the Kimmeridge at Lidsey so needed to find a reason ffor failure at the great success that BB apparently was that was an operational error, not a problem with the reservoir.
But then in the Loxley planning application submitted in 2019 they stated that HH and BB Kimmeridge was sub commercial because of flow and pressure data.
A year after testing at BB was complete and following testing of HH-1 they cite two different problems with the Kimmeridge.
A simple question. Why not drill a new Kimmeridge horizontal well at HH as obviously drilling HH-1z is out of the question without any other production? Apart from it's not BB or HH (which perhaps in itself says a lot about the Kimmeridge at those sites) if testing the Kimmeridge at Loxley will answer questions about BB and HH why wouldn't drilling and trying out a different completion at HH be even better? or would failure at HH be a problem in itself whereas a failure at Loxley could still enable another try at HH to keep the dream going.
Pboo
Thanks for your reply my thoughts we that the radial drilling would provide a solution to that but I have just read a article that the current new radial drilling tecnology developed in 2018 is only suitable for vertical wells but they hope to be able to develop this further. Please see the article below.
https://drillers.com/radial-jet-drilling-rjd-a-full-overview/
noalcohol - you're beginning to sound a lot like an old poster who kept barfing the same bile .. scandik
Wizard125
It was the type of drilling mud ( starch based) used to drill the well and the chemical stimulation that blocked all the fractures that stopped it flowing.
HH1 was drilled with an oil based mud.
Just looked at Radial Drilling methods looks very plausible, there's always a solution to most problems with today's and future technologies. Gla.
You're not the only one OCELOT
I'm delighted to have it confirmed that a "decision to further sidetrack and test BB-1" still remains in play.
For me one of the biggest problems was the lack of time permitted at BB & the other work programs sheduled at HH.
If the reports of the blockages preventing the oil flows are correct as indicated which didn't happenn the KL5 layer the new radial drilling tecnology should be a very cost effective solution & if a new sidetrack was also drilled it could prove a double success.
The best bit of the latest rns, I think was the lack of fund raising. Hopefully the dilution is over and production at HH Will pay for future works. Looking forward to more communication from the bod.
bendog
The sidetrack is the best option but it will also be interesting to see if they experiment with radial drilling.
I understand that the technology has come a long way even since we were last at BB.
A lot of money was spent at BB so let's hope it will prove & repay the investment even if it takes longer than expected.
The good thing is that BB has been fully upgraded , as Ukog spent millions on this .
It was the well that was the problem , so a side track is what's needed.
Igas
is there any other operator in the area other than angus
From Angus's Half-year report RNS of 23/06, re Balcombe:
... we therefore shortly intend to resubmit our Planning Application for a shorter well test duration. We would still aim to be looking at operations and cashflow from this asset in this calendar year.
brockham is all about portland now. however balcombe is not dead. the oil flowed. it was a mess by the operator. it will be rectified once planning sorted.
wizard,
Think "other operators" refers to Angus's Balcombe ewt, where they are due to submit their revised application to WSCC any time now.