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After 2.5 Billion Barrels, Eagle Ford Has More Oil Coming

Unread postPosted: Tue 05 Dec 2017, 12:12:59
by AdamB

Mark Twain would appreciate irony in the Eagle Ford Shale, where rumors of the play’s impending exhaustion are greatly exaggerated. The Eagle Ford has produced 2.5 billion barrels (Bbbl) of oil and will generate another 2.1 Bbbl, according to Allen Gilmer, CEO of DrillingInfo, the Austin-based Big Data repository of all things oil and gas. The play has also produced 10 Tcf of natural gas and is on track to produce another 5 Tcf to 6 Tcf. DrillingInfo compiles datapoints on rock quality, drilling parameters and completion techniques. Internally, the company correlates well metric variables to rock quality in an attempt to determine which aspects of rock quality drive are producible. The company has classified 10 grades of rock across the play, which stretches from the Mexican border east and north to the area around Bryan/College Station, Texas. “The reason we did this—and


After 2.5 Billion Barrels, Eagle Ford Has More Oil Coming

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Tue 05 Dec 2017, 14:04:56
by Cog
Better stick to redwoods pstarr.

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Fri 08 Dec 2017, 14:20:46
by Outcast_Searcher
pstarr wrote:"A second trend involves enhanced recovery, which is currently focused on reinjection of natural gas for pressure maintenance. Enhanced recovery is early in evolution and the industry is studying techniques such as ethane injection since ethane is currently low cost because of oversupply."

So the genius will pump ethane into the depleted wells where it convert magically into what? Butane? Lighter fluid is a nice product but car need a balanced diet.

Yes, if news disturbs us, we should always make content-free silly comments about it. That's the fast crash doomer way. Because that's so productive and credible. You can look to your hero, short, for an example of that.

Of course, according to ETPers, he is well respected by most around here. LOL

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Fri 08 Dec 2017, 20:40:07
by ralfy
Is that 2 billion barrels divided by 100 million barrels consumed worldwide daily?

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Sat 09 Dec 2017, 13:00:50
by AdamB
pstarr wrote:So the genius will pump ethane into the depleted wells where it convert magically into what? Butane? Lighter fluid is a nice product but car need a balanced diet.


Not a genius. Just someone who knows far more than you about the oil field (and plenty of other things as well probably), and how changes in viscosity effect reservoir dynamics.

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Sat 09 Dec 2017, 13:03:45
by AdamB
Cog wrote:Better stick to redwoods pstarr.


Watching them getting chopped down with a buzz on maybe.

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Sat 09 Dec 2017, 13:06:28
by AdamB
ralfy wrote:Is that 2 billion barrels divided by 100 million barrels consumed worldwide daily?


Jimmy Carter once made that bad calculation in 1977 when claiming the world was running out of oil. Did LATOC teach you why this faux logic turned out to be so wrong? Or as one of the participants looking for a daddy figure, did you just focus on bird flu fears and fiat currency claptrap?

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Sat 09 Dec 2017, 13:24:44
by coffeeguyzz
That pisstar guy's comments regarding ethane injection - and LTO EOR in general - could prompt some interesting learning opportunities for those inclined to expand their knowledge.
EOG is very happy with their ongoing pilot program in the EF where they are up to about 100 wells are producing higher rates of hydrocarbons as a result of field gas being reinjected nearby.

Of much more potential consequence, however, is the trial underway in the Bakken, a consortium led by Core Labs, that is injecting a proprietary gas mix underground.
The potential significance of the Bakken work is it may be an outgrowth of the ND EERC folks' research into EOR, specifically using ethane.
Steven Hawthorne, from the EERC, has some outstanding, graphic rich presentations on the net describing the high ecpections of ethane rich EOR efforts.

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Sat 09 Dec 2017, 13:31:36
by rockdoc123
Indeed..EOR in the tight shales has tremendous upside. Someone pointed out that just increasing recovery factor by 1% for the Bakken could result in 9 billion bbls of additional oil. Given that current recovery factor in the tight shales is well below 10% (I've seen everything from 4 - 8% quoted) the upside is pretty big if you could just get above 10%.

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Sat 09 Dec 2017, 15:03:20
by coffeeguyzz
From a broad view, it makes some sense to capture and re inject gas back into these formations.
Granite Oil has been successfully doing it on a small scale in Canada's Viewfield Bakken for a while now.
The small outfit that designed the micro LNG plant, now manufactured by Dresser and called LNGo, came up with a waterless fracturing process using supercritical gas, captured from nearby wells and treated with their hardware, and neutraly buoyant proppant to fracture new wells.
Nothing came of it, as far as I know.
However, the intensity and scope of ongoing work to both increase recovery and enhance completions is a very real thing.

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Sat 09 Dec 2017, 16:46:42
by AdamB
coffeeguyzz wrote:That pisstar guy's comments regarding ethane injection - and LTO EOR in general - could prompt some interesting learning opportunities for those inclined to expand their knowledge.


Pisstar has no interest in learning. He has been reciting dogma from the book of peak and doom without thought or hesitation for more than a decade now. He can be counted on to repeat what little dogma he knows without fail, nothing more.

As for CO2 EOR into tight source rocks, some folks were quite interested it in the Bakken as far back as 2012 when I spoke to Lynn Helms about it, they had done the work, and it didn't work out very well. Not saying it can't work out elsewhere, but it doesn't appear particularly cut and dried by any stretch of the imagination. And going back into wells as they are completed now to apply CO2 might fare no better.

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Sat 09 Dec 2017, 17:05:49
by rockdoc123
Every tight-shale play today is an old oil field, that has already undergone primary and secondary recovery.


OK this just beat Short for the stupidest thing ever said on this forum...congratulations.

Now the industry is dipping into the source rock for the last drips of oil. That is tertiary recovery.


No it is not. Fracking and producing is primary recovery from the shales....injecting Ethane or CO2 into the shales creates what is for all intents and purposes a miscible flood and that is EOR.

Hydraulic fracturing of OIP source rocks, with 5 mile drill pipes, that utilize millions of gallons of water and fancy chemicals under high diesel powered pumps IS EOR.


God you are incredibly thick. You were on this kick before and were corrected. Fracking does nothing to improve the fluid viscosity nor the wettability of the reservoir, ergo it is not EOR. Injecting gas of some variety that remaining oil which is now bound in the formation forms a miscible gas/liquid with is EOR.

Re: After 2.5 Billion Barrels, Eagle Ford Has More Oil Comin

Unread postPosted: Sat 09 Dec 2017, 18:30:57
by coffeeguyzz
Adam
Some of the challenges facing earlier EOR attempts in the Bakken (I believe there were 3, 2 in ND and 1 in Montana), may be partially overcome with the advances in diversionary products.
The ability to prevent unwanted breakthroughs of fluid via far field diversion is no small accomplishment.
In addition, having greater control of the placement and pressure increase of introduced fluid should enable more precise targeting of the rock.
Crescent Point has been using closable sleeves in their completion hardware so they can intermittently repressurize select areas of the formation and - hopefully - increase recovery.
They are doing sweeps in Canada and hope at some point to do the same in North Dakota.
What should be kept in mind is that a vast underground grid of steel is being emplaced about 1,000 feet apart.
The future fuzzy heads will have an enormous, existing infrastructure with which to perform their magic.