Are we finally seeing the Austin Chalk activity we have been waiting for?
https://www.oilandgasinvestor.com/amelia-resources-louisiana-austin...
http://sonlite.dnr.state.la.us/sundown/cart_prod/cart_con_wellinfo2...
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Thanks David good article
Great article very good maps. Thanks!
Nice map but very misleading since all the historical references are to the traditional natural fracture play in the AC. I doubt if the author(s) of this article even know the difference between what is happening now (i.e. what is the play concept) versus the "old" play?
That is true Rock Man but I don’t think the AC moved since the last action and that is what I was interested in seeing.
Part of it is misleading, but the cumulative amount is from wells that are not as sophisticated as the new type. The new wells should vastly improve the amount of oil equivalent
The new approach to the AC may end up being as good or better than the "old" approach - but only if the reservoir has the properties that will allow fracture stimulation to release / assess trapped O&G that is in the AC matrix system.
If the pore geometry is too small or discontinuous, the play won't work very well.
Rock Man, in the Pitkin/Masters Creek area circa 1998 communication between two wells thirteen miles apart was recorded. What does that say?
That says that the natural fracture system that was the "reservoir" for the AC here was really extensive over a very large area. That is the longest distance I have ever heard as to fracture related communication. However, communication over various distances is common when dealing with fractures (voids) in the subsurface.
Of course, there are some fracture systems that are so limited they can be depleted in only a few weeks (or days).
These fractures will be the storage space for oil & gas & water (oftentimes water if the much larger filler of the void space than O&G)
The new Hz Frac approach has to use certain materials (diverters) to help seal off fractures that may be present so that the matrix is stimulated.
However, large depleted fracture systems like you have described here are very difficult to impossible to isolate and shut off to allow for matrix stimulation
What's the source for that, Bob? I've also never heard of such a long distance communication. Was this bottom hole pressure related or fluids from one well encroaching on another? Who said it, a layman or an oilfield 'expert?' That's certainly an interesting comment.
Once the drilling rig has drilled to Total Depth (TD), the crew will set and cement the final casing string. Then they are finished and the rig leaves. Sometime later the frac crew will arrive to complete the well. There is an elaborate "tree" placed on the well head that is used to pump the stages. It's a continuous 24-hour operation that stimulates a stage and then flows it back, isolates that stage and stimulates the next stage starting at the "toe" and proceeding back along the lateral to the "heel". There is no definitive answer for time to drill a 5000' lateral. Too many variables.
In areas where operators have all the bugs worked out, drilling a 5000' lateral and setting casing can take anywhere from 7 to 14 days. However, in the early stages of drilling in a new area, I would assume 30 days to do this.
By the way, 5000' laterals are becoming more and more scarce as operators push for longer laterals. 10,000' / two section laterals are becoming more the norm in many plays (assuming the acreage is set up to allow for these longer horizontals)
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