A few weeks ago I discovered information about the large frac's that EOG was performing of some of their better wells. I have recently found that Marathon has been testing similar massive frac jobs on some wells in Gonzales County. The recent monster well report on their Burrows No. 2 is a perfect example as compared to the Burrows No. 1 drilled earlier with a smaller frac. I think the oil componet of the No. 2 is in the 4,000 bopd range so more that double the production of the No. 1
Burrow # 1 - 1569 bopd, 7137' lat, 3.8 MM lb prop (? stages)
Burrow # 2 - 6275 boe/d, 7198' lat, 8.4 MM lb prop (27 stages).
The implications of this are huge assuming the decline curve will follow the traditional model. This would mean that the larger frac is creating double the EUR of the smaller frac. The ROI on wells the bigger fracs will be huge, not the mention that the royalty owner will be doubling their take over the life of the well. It may also mean that some of the marginal areas have now become profitable. However this approach hasn't to my knowledge been tested in the updip areas as yet. The service companies and sand haulers should be jumping up and down for joy with all the additional business it will create for them. I can only guess at what the recovery factor will become with this method, perhaps going from the current 6% to 12%? I wonder how long it will take other operators to get on the bandwagon. This could be the equivalent of finding a second EF formation! I wonder if this is something they have learned from the Baken or some other shale formation?
I hope that some of the experts will comment on this.