RE:The targets.........CascaDeep-1Thanks for sharing this Proselenes. Been doing a bit of my own mapping to try and get my head around Chinook / Cas Deep. Part of that process was going through the press releases TXP provided on all the wells to date and detailing what they did or didn't hit.
December 19th, 2019 – Cascadura Logs – True vertical depth (TVD) 6,100 feet – Measured depth (MD) 6,350 feet. - 180 net feet of oil pay was encountered in an Upper Herrera Gr7c thrust sheet at measured depths between 4,198 and 4,994 feet. These sands were also not reported in any offset wells previously drilled in the area.
- 600 net feet of oil pay was encountered in a Middle Herrera Gr7c thrust sheet at measured depths between 5,516 and 6,162 feet. These sands were also not reported in any offset wells previously drilled in the area.
- 177 net feet of oil pay was encountered in a Lower Herrera Gr7a thrust sheet at measured depths between 6,162 and 6,350 feet, which were one of the Company’s targeted sands as identified in the offsetting BW-5 well.
October 14th, 2020 – Chinook Logs - True vertical depth (TVD) 9,776 feet – Measured depth (MD) 10,039 feet. - 341 net feet of hydrocarbon pay in the Gr7a section of the overthrust Herrera sands at measured depths between 8,154 and 8,710 feet. The overthrust Gr7a sands were the Company’s primary target originally identified in the offsetting BW-7X well.
- 180 net feet of hydrocarbon pay was identified in the Gr7bc section of the intermediate Herrera sands at measured depths between 8,850 and 9,750 feet. The sands encountered in this thrust sheet also correlate to the offsetting BW-7X well and were the Company’s secondary target.
- 68 net feet of hydrocarbon pay was identified in the Gr7bc section in a subthrust sheet of Herrera sands at measured depths between 9,750 and 10,003 feet. This represents a previously unknown thrust sheet as no sands of this depth were previously penetrated in the offsetting wells.
October 29th, 2020 – Cascadura Deep Spuds – Targeting Measured depth (MD) 10,600 feet. - The surface location is on the same drilling pad as the previously drilled Cascadura-1ST1 well with the bottom hole location anticipated to be 1,300 feet to the south east. The well is targeting three distinct Herrera thrust sheets and is designed for a total depth of 10,600 feet. The current drilling plan is based on a 45-day drilling schedule.
Here's an image of what I think that looks like:
A couple things are worth pointing out. Slide 11 of the current TXP presentation includes faded lines that show where previous shell wells were drilled. In addition to the shell wells, there appears to be a well tract that follows the current Cascadura well track that is faded that may be the Cascadura deep well track. Another thing of note is the third thurst sheet found in Chinook. The image provided by management only appears to have 2 sheets?
Goaweight had askend the following previously:
So how much potential resource could we lose because the original sheet now has a seam in the middle, for lack of a better term.
Having looked at the image provided by TXP and thought a bit about it more, I don't think it matters if the Cascadura Deep bottom hole prospect is connects with the Chinook bottom hole reservoir. Both zones being charged for hydrocarbons is what matters.
My mind does wander back to how large Chinook is without any further developments from Cascadura Deep. My understanding is TXP has the BW-7 and BW-7X logs (old logs). Additionally they have the new Chinook logs. From the cross section provided in the TXPs presentation on slide 11 it looks like quite a large area compared to Cascadura... With a well test rate that doesn't dissappoint, I am thinking Chinook is significantly bigger than Cascadura without any further data from Cascadura deep. Another lense on this thought can been seen below in an updated image:
Happy sunday evening everyone. Lets hope the week goes well!
Best,
Moric