CLR Does It Again; Another Huge Cedar Coulee Carus Well -- November 20, 2019

Updates

November 18, 2021: #35577 production updated --35577, 2,017, CLR, Carus 9-28H, 42 stages; 12.75 million lbs; Three Forks first bench, Cedar Coulee, t8/19; cum 113K 9/19; cum 402K 3/21; recent production: cum 439K 9/21;

Pool	Date	Days	BBLS Oil	Runs	BBLS Water	MCF Prod	MCF Sold	Vent/Flare
BAKKEN	9-2021	30	6561	7053	8292	29039	27967	742
BAKKEN	8-2021	31	10787	10253	12164	54040	53228	293
BAKKEN	7-2021	26	4078	3951	6316	19433	18843	88
BAKKEN	6-2021	30	4937	4908	6255	23610	23172	108
BAKKEN	5-2021	31	5121	5145	5014	27413	26742	370
BAKKEN	4-2021	30	6290	6271	6185	29480	29192	156
BAKKEN	3-2021	31	6606	6598	7180	26002	25453	412
BAKKEN	2-2021	28	6062	6063	4540	23574	22991	461
BAKKEN	1-2021	31	7627	7674	7225	36046	35824	48
BAKKEN	12-2020	31	9813	9701	8217	41833	41584	104
BAKKEN	11-2020	30	11693	11685	10486	36742	33888	2718
BAKKEN	10-2020	11	4307	4464	3998	10932	10567	311
BAKKEN	9-2020	30	13739	13678	11962	37598	36871	586
BAKKEN	8-2020	31	14721	14558	14074	27012	26593	277
BAKKEN	7-2020	2	1545	1642	1401	2559	2508	32

  Original Post

This post won't be updated; the CLR Carus wells are tracked here.

• 35577, 2,017, CLR, Carus 10-28H1, 9-28H, Cedar Coulee, within the "Rocket prospect," t8/19; cum 113K 9/19; cum 402K 3/21;
  
• 35550, 1,063, CLR, Carus 4-28H1, Cedar Coulee, t10/19; cum 5K after 7 days; cum 226K 3/21;
  

Production and data from the file report for this well:

• 35577, 2,017, CLR, Carus 9-28H, 42 stages; 12.75 million lbs; Three Forks first bench, Cedar Coulee, t8/19; cum 113K 9/19; cum 402K 3/21;
  

Pool	Date	Days	BBLS Oil	Runs	BBLS Water	MCF Prod	MCF Sold	Vent/Flare
BAKKEN	9-2019	28	36673	36597	27570	46643	43949	2694
BAKKEN	8-2019	31	50301	50464	42142	61761	59629	2132
BAKKEN	7-2019	20	24467	23970	22539	26312	24989	1323
BAKKEN	6-2019	0	0	0	0	0	0	0
BAKKEN	5-2019	5	1955	1955	4235	965	0	965

From the file report:

• spud date: December 15, 2018; drilling operations begat at midnight of December 15, 2018 (sic -- no typo -- from the file report); H&P rig 535; normally takes about three days for the vertical section; 12 hours for the curve; no explanation for delay from December 18, 2018 to January 14, 2018; perhaps Christmas break; weather;
  
• TD date: January 18, 2019
• KOP: target of 11,438'; data (Upper Bakken Shale) suggested lowering it to 11,440' TVD; the change was communicated to the directional hands; the final ideal target at the Three Forks ended up being 11,439' TVD
• collapse issues have been encountered in this region (previously posted, by the way)
• discussion about best way to enter the shale
• no shale collapse issues occurred
• drilled out of the shoe early on January 14, 2019
• discussion regarding drilling rates; geologist thought they were in ideal seam
• gases extremely high; shoutout to the roughnecks preventing a blowout
• background gases initially averaged 500 - 1,500 units; a couple of peaks exceeding 4,000 units, which brought in the gasbuster;
• at 16,120' MD, gas increased to 1,500 - 2,000 units;
• at 17,700' MD, gas levels rose to exceed 3,000 units and slowly built to 8,000 to 8,500 units from 20,000 - 21,000' MD
• after this point, gas faded to a range of 4,500 - 6,000 units of background gas through to TD
• further discussion regarding the seam and drilling rates
• Markers:
• base of last salt: 9,766'
• Mission Canyon: 9,950'
• Lodgepole: 10,474'
• upper Bakken shale: 11,340'
• middle Baken shale: 11,356' (so about 37' thick)
• lower Bakken shale: 11,393'
• Three Forks: 11,417'
• KOP: 11,439' (so the curve about 341' in length)
• horizontal segment, began at 11,780' MD
• horizontal segment, TVD: 11,434.11 feet to 11,446.57 feet
• assuming the wellbore was about mid-seam, the First Bench must have been about 12 feet thick;