RE: On news15 Mar 2018 16:01
MO will calc... A5 (or try to)
From update 08-Aug...
"Extreme high pressure and temperature resulted in a difficult drilling phase, which led to the initial decision to test the well on an open-hole basis. However, for some time, we have believed a side-track from a depth of 4,000 meters would be the best way forward. Work to accomplish this was delayed as we switched from a lighter rig to the current 50 tonne RT-50 rig to avoid excessive wear on the rig's engines.
We have removed the majority of the 4,290 meters of production tubing in the well. Once fully removed we shall proceed to drill out from the casing tubing from a depth of approximately 4,300 to 4,500 meters."
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Was 4200m at interims... 4331m at update, so between 20-Sep and 02-Oct is 12 day for 131m drilling, is crude method...
Completion RNS on 23-Oct... Can workout how long sidetrack took... Max 60 days...
"The previously announced side-track has been drilled and completed without incident using a 4-1/2 inch pre-perforated liner followed by running 3-1/2 inch tubing
On 21 October 2017 the well was opened for clean-up purposes. The initial flow rates were approximately 3,500 bopd using a 11 mm choke.
The well flowed without interruption for 4 hours and without artificial stimulation before it was shut in pending the arrival on site of additional high pressure testing equipment.
The well-head pressure varied from 160 to 300 bar. The pressure build-up dynamics indicate an excellent reservoir quality. The current shut-in pressure is 470 bar (6,887 psi). The high well-head pressure and the good presence of rich gases such as butane and pentane also indicate lighter and more valuable oil compared to our shallow wells.
The interval tested is limestone and extends 85 meters in height between depths 4,335 meters and 4,420 meters."
Sorry for random, just trying to see if targets realistic...
MO
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