STENA ICEMAX - 14 days since spud3 Jan 2021 13:50
Today STENA ICEMAX 14 days since Spud commenced on Sunday 20th December 6.30 am Perseverance 1 - anticipated 45 - 60 days to complete.
The following I re-post once again the view from someone if you are new we were lucky to have on board, namely poster Coman. A 30 year experienced in offshore drilling industry engineer who also has a degree in Petroleum Engineering. He is familiar with our type of drilling rig, been lucky enough to work on both the Maersk Viking and the Stena Icemax, Therefore, as I see it if you are going to ask a question he is well qualified to explain drilling process on STENA ICEMAX. He obligingly said he is happy to offer any operational insight where he can...
Coman views
"On Page 11 of one of the corporate presentations shows the various targets, the top one being the Albian and looks to be at +/- 1750m. The rest of the targets look to be from +/- 2500m and below. That means they must be drilling the 16-1/2" hole through the top Albian target and setting the 13-3/8" casing between the 1st and 2nd target. Thereafter looks like they plan to drill 12-1/4" through the rest of the targets - if they can.
Some of the timings in the EIA don't seem realistic - eg 1 day to run BOPs, part of that is done off the critical path due to the dual derrick set up on the Icemax but I still don't think 1 day is possible especially with the MPD kit to hook up. However based on the well plan in the EIA if they don't encounter any problems I'd say they should easily be in the 1st reservoir within 10-15 days
The MPD package helps manage the well problems associated with drilling these formations. So assuming they are going to have that system completely set up and utilised it would probably add a couple of days overall to the time taken to reach the 1st reservoir.
BPC will most likely have the Schlumberger tools available to perform a mini DST on wireline which gives a lot of the same information. A mini DST also does a pressure drawdown followed by a pressure build-up. Very few companies now do a DST on an exploration well due to the costs associated with having the equipment available and then not doing the test if the well is a duster. Having the tools available for a mini DST won't cost much more than having the normal wireline tool package available and a mini DST can be done in a couple of days as opposed to potentially a couple of weeks or more for a full DST. In a well like this, a mini DST also has the advantage of being run over several of the different zones
My experience is all in Drilling however from what I know of production using an FPSO in the water death and environment makes perfect sense, produced oil would be pumped from the FPSO to an Oil tanker to be taken to a refinery so what has been quoted seems perfectly logical
*Thanks, COMAN for your various views during November & December 2020, it all help everyone form our own opinion.