There's a lot of giddiness over fracking of tight oil from shale rock. Hydraulic fracturing is allowing oil companies to capture oil from old reservoirs or deposits that were once considered uneconomic in shale rock formations all over the world. In the United States, this kind of production is reducing oil imports and, some say, may one day make the United States an oil exporter again.
One of the reasons this is happening is indeed because of this new (fracking) technology. But another reason is because oil prices are high enough to make hard-to-get oil worth getting.
But does that really mean there will be decades of abundant oil? Does that mean the U.S. will become an oil exporter?
I'm not a geologist but I'm pretty sure there isn't an infinite supply of oil on this planet. By that I mean, you don't just get more oil from a reservoir forever just by spending more money to develop it. In other words, oil pumped versus dollars spent does not look like Figure A, to the right. Figure B, on the other hand, has a 50:50 chance of being correct, as I understand it, because some reservoirs did not give up more than a third of the oil with conventional drilling techniques. That's why horizontal drilling was developed. That was supposed to get at the rest of the oil. So, maybe two thirds of the oil was ultimately recovered. Which brings us to figure C. My suspician is that what's left to be recovered by fracking the rock underground is the last third of the North American oil, and not the sort of mammoth deposits we all (including me) want to believe are there to be mined. Fracking has simply allowed us to access them and to suck them out at a great rate.
Like the light bulb that flares up before it burns out, fracking my be these reservoirs' great last gasp.
One of the reasons this is happening is indeed because of this new (fracking) technology. But another reason is because oil prices are high enough to make hard-to-get oil worth getting.
But does that really mean there will be decades of abundant oil? Does that mean the U.S. will become an oil exporter?
I'm not a geologist but I'm pretty sure there isn't an infinite supply of oil on this planet. By that I mean, you don't just get more oil from a reservoir forever just by spending more money to develop it. In other words, oil pumped versus dollars spent does not look like Figure A, to the right. Figure B, on the other hand, has a 50:50 chance of being correct, as I understand it, because some reservoirs did not give up more than a third of the oil with conventional drilling techniques. That's why horizontal drilling was developed. That was supposed to get at the rest of the oil. So, maybe two thirds of the oil was ultimately recovered. Which brings us to figure C. My suspician is that what's left to be recovered by fracking the rock underground is the last third of the North American oil, and not the sort of mammoth deposits we all (including me) want to believe are there to be mined. Fracking has simply allowed us to access them and to suck them out at a great rate.
Like the light bulb that flares up before it burns out, fracking my be these reservoirs' great last gasp.







