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Wednesday, September 14, 2011

Case Study -- In Real Time -- BEXP -- West Of Williston -- Bakken, North Dakota, USA

Start with the discussion here.

Two BEXP three-well pads, with a rig-on-site in the middle well for both of the following configurations. In Todd oil field (Williston).

Here's the first:
  • 21005, 2,436, Statoil/BEXP, Borsheim Trust 33-28 1H, section 33-155-101, t3/12; cum 239K 5/17;
  • 21006, 3,001, Statoil/BEXP, Orville 4-9 2H, section 33-155-101, t3/12; cum 274K 5/17;
  • 21007, 2,788, Statoil/BEXP, Orville 4-9 1H, section 33-155-101, t3/12; cum 232K 5/17;
These three wells sit on one pad, or are very, very close to each other. I will have to take a drive out there sometime this month.

Of the three wells, two will go south (ala the Olson wells -- 19085 and 19086) and one will run north. Both will be long laterals.

And what makes this really cool, BEXP will do the same thing again, 0.36 miles to the southeast in section 3-154-101:
  • 20997, 2,823, Charles 3-10 1H, section 33-155-101; t5/12; cum 238K 5/17;
  • 20098, 2,315, Charles 3-10 2H, section 33-155-101, t3/12; cum 252K 5/17;
  • 20099, 1,080, Cherrey 34-27 1H, section 33-155-101, t11/11; cum 340K 5/17;
Again, these three wells sit on one pad, or are very, very close to each other. I will have to take a drive out there sometime this month.

Of the three wells, two will go south (ala the Olson wells) and one will run north. Both will be long laterals.

Since I mentioned the Olson twins, here's an update:

NDIC File No: 19085 API No: 33-105-01857-00-00 County: WILLIAMS CTB No: 119085
Well Type: OG Well Status: A Status Date: 4/21/2011 Wellbore type: HORIZONTAL
Location: NENW 9-154-102
Lateral 1 Start Coordinates 102 S 131 W From Wellhead, End Coordinates 10105 S 573 W From Wellhead
Current Operator: BRIGHAM OIL & GAS, L.P.
Current Well Name: BRAD OLSON 9-16 3H
Spud Date(s): 8/16/2010
Completion Data
Pool: BAKKEN Perfs: 10993-20440 Comp: 4/21/2011 Status: F Date: 4/24/2011 Spacing: 2SEC
Cumulative Production Data
Pool: BAKKEN Cum Oil: 39154 Cum MCF Gas: 22707 Cum Water: 39709
Production Test Data
IP Test Date: 4/24/2011 Pool: BAKKEN IP Oil: 2172 IP MCF: 1218 IP Water: 5733
Cum 163K 8/14;

NDIC File No: 19086 API No: 33-105-01858-00-00 County: WILLIAMS CTB No: 119086
Well Type: OG Well Status: A Status Date: 11/1/2010 Wellbore type: HORIZONTAL
Location: NENW 9-154-102
Current Operator: BRIGHAM OIL & GAS, L.P.
Current Well Name: BRAD OLSON 9-16 2H
Spud Date(s): 7/13/2010
Completion Data
Pool: BAKKEN Perfs: 10830-20580 Comp: 11/1/2010 Status: F Date: 11/2/2010 Spacing: 2SEC
Cumulative Production Data
Pool: BAKKEN Cum Oil: 64723 Cum MCF Gas: 42895 Cum Water: 64793
Production Test Data
IP Test Date: 11/2/2010 Pool: BAKKEN IP Oil: 2472 IP MCF: 1470 IP Water: 3107
Cum 171K 8/14;

The two laterals start out within feet of each other, diverge, and end up less than 1,500 feet apart as long horizontals. Fracking effectiveness goes out 500 feet from a horizontal, so there is still 500 lateral distance between these two horizontals that is being missed. If these end up being great Bakken wells, BEXP will put a third Olson horizontal in the same formation between these two legs. There are  three horizontals in this spacing unit and the general consensus is that there will eventually be at least 7 horizontals in each "good" Bakken spacing unit. We're not even halfway there in an area with intense activity already.

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