RE: Kimmeridge17 Feb 2023 14:48
ZYX,
'If it is just a simple case of a precipitous decline in initial producing rates, it's doubtful the the test was long enough to tell them what the recharge rate was - unless it was very quick, but water.'
The test IBug and I mention was the last one they gave any information on - and it continued until some time before January 16:-
'In order to conduct interference testing, HH-1 Portland EWT production was resumed on 16 January 2020'
But there were plenty of Kimmeridge tests during the ewts carried out in 2018 and 2019. The test that finished on 27 November had been underway since 12 September (RNS 12 September:- ' Kimmeridge test oil production has now resumed and will continue until the rig arrives, when a further short shut-in will occur to enable the HH-2/2z drilling set-up to be assembled) this from 9 October, though no flow details, just an update to total production, 'over 41,800bbls.
'Continuous Kimmeridge oil production from Horse Hill-1 ("HH-1") has been maintained since the start of the Horse Hill-2/2z horizontal drilling campaign on 29 September 2019.'
In the 12 September RNS total Kimmeridge production was also mentioned 'Prior to the current shut-in, Kimmeridge test production reached a total of 36,559 barrels ("bbl")'.
This means between 12 September and 9 October the Kimmeridge test produced 5241bbls.
The number of days is uncertain as the test was suspended while rigging up but assuming about 4 days less that means about 23 days which gives an average of about 230bopd - way below the sort of flow rates that were been headlined during the tests - the previous test they ran at 313bopd in the final 24 hours.
There are other clues as to what the previous Kimmeridge flow period produced.
1 August 2019 - 'From 6th July to date, the Phase 2 Kimmeridge test has produced a further 5,524 barrels ("bbl")'... &.....Total aggregate Portland and Kimmeridge test oil production .........now totals a significant landmark of 60,186 barrels ("bbl").'
26 days = average about 212bopd
and again on 12 September 'Total aggregate Portland and Kimmeridge test production now stands at a landmark 66,127 bbl'
So 1 August to 12 September Kimmeridge production was 66127 - 60186 = 5941bbls - although production was suspended whil;e flow lines were being rerouted in preparation for the rig arrivsl. That work commenced 30 August so assuming 29 days production that's about 205bopd average.
You might assume like all these tests mentioned here thAT the final Kimmeridge test into January 2020 had an overall average of low 200's which would mean very low flow rates at the end - until there's a published report or CPR we shan't know
Bit long wided - but they certainly had some fairly long tests and shut in periods to determine what was happening even though they've used lots of smoke and mirrors to disguise it.