Here's an example of a 5120-acre drilling (spacing) unit.
The 5120-acre unit is laid out as a 2 x 4 grid: two sections wide and four sections long (running north to south). The eight sections in T155N R98W:
- 13/14
- 23/24
- 25/26
- 35/36
- 35659, Richmond 9-26HSL 1, runs north; 5120-acre unit; Three Forks B1;
- 35658, Addyson 10-23HSL 1, runs south; 5120-acre unit; Three Forks B1;
- 35657, Boston 4-25HSL, runs south; 5120-acre unit; middle Bakken;
- 35656, Boise 4-24HSL, runs north, 5120-acre unit; middle Bakken;
- 35658, Addyson 10-23HSL 1, runs north; one of our wells in this 5120-acre unit; target: Three Forks B1;
- according to the permit, this will be a standard, run-of-the-mill long lateral:
- a Three Forks, first bench target
- vertical depth: 11,175 feet
- total depth: 22, 438 feet
- horizontal: 11,263 feet
- the bottom hole will be 10,736 feet almost directly north of the drilling site, in the corner of section 14-155-98
- the horizontal lateral will run along the west side of the section line between sections 23/25 and 14/13
- the horizontal lateral will be about 100 feet from the section line
This is what is really cool about this: any mineral owner who owns minerals in any part of any of those eight sections will participate in royalties from this well. This means that even those folks owning minerals two miles to the south of where this well is sited, and where the horizontal won't even come close will receive royalties from this well.Screenshots.
The permit:
Satellite view:
The NDIC graphic:
OK, now this makes more sense... I was picturing a north/south 8 sections... which would have been 4 miles north and 4 miles south. Thank you for all your digging around and finding these interesting facts. We (I) learned what the SL designation stands for... LOL! I hope you never lose interest in digging around for information and facts... Myself and probably hundreds of people really appreciate what you do!! (P.S. This is another Three Forks well... You can call me Mr. Three Forks, but I am VERY impressed with the Three Forks formation and what that adds to the Williston Basin.)
ReplyDeleteYou are quite welcome. I had the same thought some time ago regarding four-mile wells, etc. Your comments about the Three Forks is right on. A huge formation. Lynn Helms says that the Three Forks may produce better wells than the middle Bakken -- not more wells because the Three Forks has a smaller footprint -- but better wells when compared head-to-head in the same location.
DeleteThe second and third benches are still a mystery. Thank you for your kind comments. It is interesting. I've learned a lot from readers.