RE: A newcomer26 Nov 2018 03:52
rxdav / presneill31 - I would say yes always be cautious when it comes to the expectant results, but what is in fact rather unusual in the oil industry is to have two tests ongoing on a new formation literally 5 miles from each other as the crow flies.
So we have see the Kimmeridge has flowed at:
HH =Yes
Balcombe = Yes
Lidsey = Yes
Now for Brockham (5 miles as the crow flies from HH).
Personally I have used the rate of 1,000bopd. Set yourself a benchmark and then anything above it is a bonus. I've used 1,000bopd in reflection of what HH saw just from the Upper and Lower Kim layer tests in 2016.
It bodes well for an Angus SP rerate as we are about to test the same formation that has been flowing 5miles down the road as the crow flies, as well as the interbedded shale. A deviated well sees more of the limestone than a vertical well,...trigonometry.
The added bonus is that Brockham was drilled specifically as a Kimmeridge producer with the correct hole size / drilling fluid, whereas HH wasn't due to it being an exploration well assessing multiple zones of interest.
That's a very interesting point as I've based my production rates on the HH 2016 test and not a standard production well with the correct sized hole, as well as adding the additional the hydrocarbons in the interbedded shale, so Brockham should see better flow rates than the HH 2016 test
Brockam isn't a horizontal well, so I will go for a conservative figure of 1,000bopd.
UKOG (actually Angus did it for them) flow tested their deviated well in both the Upper and Lower Kimmeridge back in 2016
Upper Kim perforated 88ft observing 901bopd
Lower Kim perforated 80ft observing 464bopd
So they perforated 168ft and observed 1,365bopd
Angus are perforating 200m or 656ft of Kimmeridge.
That is 4 times what UKOG did.”
Vonk says at 6min 44secs
“Brockham is a carbon copy of HH. Brockham is drilled as a Kimmeridge Producer. HH was never drilled as a Kimmeridge producer. Hole is too big and used the wrong drilling fluid to get the best out of the reservoir”
http://www.lse.co.uk/media/exclusive-balcombe-test-boost-for-angus-energy-as-oil-flows.html
What is the difference between Brockham and HH?
Brockham is deviated where as HH isn’t.
Brockham has more exposure to the limestone than HH.
Brockham was drilled as a Kimmeridge producer with the correct sized hole for optimum production. HH drilled through Kimmeridge section with much larger hole due to well design assessing deeper reservoirs beneath it.
Brockham drilled with correct drilling fluid for producing from Kimmeridge. HH used wrong drilling fluid as deeper reservoirs were the objective.