EnCana has reported several months of production from the first of their long lateral hz. wells in San Augustine County. I thought I'd share some comps. (with shorter laterals) so you can see the improvements... and judge for yourselves. Keep in mind that there have probably been other (than lateral length) changes such as # of perfs, # of stages, frac design (I started to say “recipe” but decided that would be really too “girl-ie”… ish) etc… .
ECA drilled their first well in the county back in 2010. It was the Black Stone Minerals A43 Unit #1H (405-30307) which came on @ a reported 32.000 MMcfd on a 28/64 choke with a 5659# flowing pressure (13 frac stages). By December it was producing an average of 2.131 MMcfd from a ~4400’ lateral. Here are the 2010 monthly numbers:
May – 397,411 mcf
Jun – 474,540 mcf
Jul – 293,300 mcf
Aug – 232,185 mcf
Sep – 168,306 mcf
Oct – 134,040 mcf
Nov – 103,238 mcf
Dec - 66,072 mcf Total (8 months) : 1,869,092 mcf
Cum. to date (51 months) 2,912,745 mcf
Black Stone A-398 Unit #1H (405-30335) was the next to come on, in August 2010, @ 23.424 MMcfd from a ~4,000’ lateral (18 frac stages) … a very strong well with a 9097# flowing pressure on a 27/64 choke. This has been a better producer than the first well which had a larger IP, a longer lateral and a steeper decline. Here are the numbers from 2010/2011:
Aug – 456,444 mcf
Sep – 463,548 mcf
Oct – 398,242 mcf
Nov – 350,209 mcf
Dec – 274,467 mcf
Jan - 215,532 mcf
Feb – 154,138 mcf
Mar – 136,338 mcf Total (8 months): 2,448,918 mcf
Cum. to date (48 months) 3,669,194 mcf
I am not going to include the A43 #2H (405-30369) because I think it was (most likely) a Bossier completion. I am also not going to use what I am calling the “Norwood, East” wells because I think (by my amateur analysis) they are finding different and/or thinner rock over there… so the well results are different. I will stick to just the “Norwood, West” wells for this exercise.
That brings us to the BSI Unit A47 wells. #1H (405-30414) and #2H (405-30445) both had a lateral length of ~7,500’ (both wells had 30 frac stages on completion reports). A47 #1H came on in Nov. 2011 (partial month).
Nov – 139,179 mcf
Dec – 415,211 mcf
Jan - 499,980 mcf
Feb – 452,522 mcf
Mar – 474,811 mcf
Apr - 238,836 mcf
May- 137,437 mcf
Jun- 169,052 mcf Total (8 months): 2,527,028 mcf
Cum. to date (33 months) 6,714,9896 mcf
A47 #2H came on in Dec. 2011 (partial month).
Dec – 428,947 mcf
Jan – 503,917 mcf
Feb – 481,450 mcf
Mar – 493,196 mcf
Apr - 235,660 mcf
May- 207,470 mcf
Jun- 163,640 mcf
July- 207,445 mcf Total (8 months): 2,721,725 mcf
Cum. to date (32 months) 6,925,986
This is not enough time to really compare these two new wells (to the others) but they are looking good, so far, and I will come back and add the production until we have eight months from all of the wells. The decline appears to be fairly flat (I’d do charts but I’m not an accomplished “chartist”… sorry) on both and they look set to eclipse (by far) the shorter wells at eight months in. This will give us something to while away our summer with… while we wait for the NG price to improve.
With over thirty months of production from the A47 wells it is now apparent that the longer laterals (~7500' vs.~4000') are far out-producing the shorter wells. What is not apparent are the differences in the later wells compared to earlier ones regarding number of stages, number of perforations per stage and frac design.
To give you another exemplar of a still later well in the area, to show that these are all evolving aspects of a horizontal well, the XTO - Banana Slugs DU #1H has an effective lateral length of 6,538' & was frac'd with 8,612,980# of sand. (Sorry, no data available on number of stages... but I will make a WAG that it is upwards of 28-30).
Banana Slugs DU #1H came on in May of 2013 (partial month) @ 15.332 MMcfd on a 17/64 choke with 8342# flowing pressure. It has exhibited gentle decline in fifteen (15) months of production and turned in 401,014 mcf in July, 2014:
May- 243,593 mcf
Jun- 463,670 mcf
Jul- 448,927 mcf
Aug- 461,712 mcf
Sep- 391,040 mcf
Oct- 431,454 mcf
Nov- 440,797 mcf
Dec- 472,418 mcf Total (8 months): 3,353,611 mcf
Cum. to date (15 months): 6,198,746 mcf
Banana Slugs DU #1H is on track to eclipse the A47 wells in just a few months as the A47 wells continue to decline.
That fits with something I heard from another operator - 20% increase in frac costs due to extra perfs/more water/more sand = 40% better well. Optimizing doesn't always simply mean "cheaper"
It will be interesting to see how these longer wells hold up over time. I'm impressed with how flat the decline looks, so far, but they could fall off pretty sharply in a few months.
Holy friggin smokes!! I had no idea these wells were producing so well. Once again jffree1, you have enlightened my heart. The wells are a "stone's throw" away from us! Exco's Walker wells to the west & Encana's A-47's to the east. Not to mention a few XTO's to the north. I think I'll be smiling when I go to sleep tonight.
I couldn't help myself, farmbrad. I saw your distress signal over on the Nacogdoches group yesterday. And, I did give you a "hint" in my reply. You should just stop frettin' about your lease running out. Your gas isn't going anywhere and someone will show up eventually to offer a new lease.
Location, location, location...
Great info jffreel........thanks!
I really haven't been following permits lately but I took FM1277 to San Augustine Saturday & saw the dirt work for a new pad just east of BS A398. I guess this will be another long lateral for Encana?
I believe that is the BSI/USFS F1 Unit which has three wells permitted. All will be about 8000'. I may be wrong on this but their one rig left Nacogdoches last week and it could be going (next) to the unit in Z. Redmond just west of 147 on 103. That is the F16 unit which also has three permits and should make absolute monsters @ about 9,000'.
Ah, the F16. That would be incredible. Encana would actually be letting someone other than Blackstone get a little royalty money....
fb, EnCana has lots of individual owners in their units by the time they file the unit designation. I can't think of one, already drilled, where that isn't true.
Even on USFS blocks, US may own all of the surface but only part of the minerals. Black Stone doesn't always hold all of the minerals under their tracts, either. There are plenty of individuals who will benefit from EnCana wells. It's just not always obvious... looking at a surface plat.
Good to know....the original plats have shown little if any common folks interests. An acre here, an acre there. If you total all the units together & figure % not owned by Blackstone minerals there's a large gap. I was told that Encana has less time to drill Blackstone interests & that's driving their decisions. I don't fully understand the philosophy but I don't understand a lot of things going on these days.
April production added.
Just curious to see if there has been any activity on the Z. Redmond lately. We are leased with Encana and had heard there will be up to 7 wells there. That was over a year ago though and we all know things have changed. I've only found the three wells mentioned in this string of posts on the TRRC site. It would be nice to hear some good news!