Skip to comments.Microwave oil recovery could unlock trillions of barrels of oil [...] from Oil shale and oil sands
Posted on 12/07/2016 6:45:48 PM PST by Vince Ferrer
Peter Kearl is co-founder and CTO of Qmast which is a Colorado-based company pioneering the use of the microwave technology to recover oil. Oil giants BP and ConocoPhillips are pouring resources into developing similar extraction techniques, which can be far less water- and energy-intensive than fracking.
There is more than 4.285 trillion barrels of oil barrels of oil in the Green River Formation (2011 U.S. Geological Survey of resource in-place). Using oil shale cutoffs of potentially viable (15 gallons per ton) and high grade (25 gallons per ton), it is estimated that between 353 billion and 1.146 trillion barrels of the in-place resource have a high potential for development
The Green river formation is the worlds largest known deposit of kerogen-rich rock and covers Colorado, Utah and Wyoming. This is oil shale.
Oil shale is not shale oil. Shale oil is essentially liquid oil locked up in rock thats found in deep formations and requires hydraulic fracturing, or fracking, for it to flow freely to the wellbore for extraction. Oil shale, on the other hand, isnt really oil yet. Instead, it is found in more shallow formations that contain solid organic materials called kerogen. Oil shale must be heated to get oil out of it.
Producers would microwave oil shale formations with a beam as powerful as 500 household microwave ovens, cooking the kerogen and releasing the oil. It also would turn the water found naturally in the deposits to steam, which would help push the oil to the wellbore. Once you remove the oil and water, Kearl continues, the rock basically becomes transparent to the microwave beam, which can then penetrate outward farther and farther, up to about 80 feet from the wellbore. It doesnt sound like much, but a single microwave-stimulated well, which would be drilled in formations on average nearly 1,000 feet thick, could pump about 800,000 barrels. Qmast plans to have its first systems deployed in the field in 2017 and start producing by the end of that year.
Qmast estimates his pumping costs will be about $9 per barrel, which is only about $2 more than conventional wells.
Qmast would be to lower a high-power, 2.45-gigahertz emitter essentially a supercharged microwave oven into the ground.
The idea that a microwave antenna might do the job has actually been around for a while. However, equipment that can create, steer and stabilize the beam was too bulky to fit down a narrow well. Now, designs that will soon make the technology cheap and commonplace are emerging from small outfits, including one Kearl has set up, and from the defense industry.
But just as a ceramic mug in a microwave oven remains cold to the touch while its contents warm up, porous rocks dont heat up when zapped with microwaves. The trick is that any water trapped in their pores will. If that is mixed up with solid hydrocarbons, the boiling water will heat and liquefy these. The water then turns to steam, and everything can flow through the cleared pores and cracks to be collected at the surface
Kearl thinks there is another, immediate use for his technology: to unblock existing oil and gas wells that have become too sluggish to be worth operating. In oil wells, this happens when paraffin wax and other impurities build up in the conduits to the pipe. Similarly, fracking well production declines quickly when the shale absorbs water, causing the rock to swell and squeeze into the fractures and block the gass exit. Many of these wells are abandoned despite there being . plenty of remaining oil or gas, and new wells are dug. If microwaves can melt paraffin and boil off water, blocked wells will flow like new. They could be effectively rehabilitated by microwave heating, says Kearl. This could help protect environmentally sensitive areas. If we can produce more oil from old wells, that would lessen interest in drilling for new sources of oil, says Stephen Brown, an energy economist at the University of Nevada, Las Vegas.
John Robinson and his colleagues at the University of Nottingham, UK, are developing a system to dislodge oil trapped in drill cuttings, the contaminated sand left by the drilling process in a conventional well. When the team zaps the mix with microwaves, the heating of any water mixed in with the heavy oil makes oil dribble out, leaving basically clean sand. BP has funded Robinsons team to extract oil from cuttings left by its ocean platforms, making the cuttings safe to put back into the ocean.
The same process can coax oil from tar sands, a forbidding mixture of sand, clay, water and bitumen a heavy oil sludge that has resisted all efforts to pump it from the sands.
Low-grade tar sands reserves might be recovered by zapping thanks to their payload of water, trapped in this case within the crystal structures of small particles called clay fines. Robinson says his groups long-term goal, like QMast, is to use microwave heat for large-scale production of hydrocarbons. If microwave technologies can eliminate the need for water and chemicals in hydraulic fracturing, that would be a significant advance, says Rob Jackson, an earth systems scientist at Stanford University in California. Indeed, rather than consuming vast quantities of water as fracking does, zapping could even unlock fresh water supplies
When Robinsons technique turns the water in tar fines to steam, it yields not just oil but water pure enough to drink. Tar sands are only about 1 per cent water, but oil shales water content can approach 20 per cent. Current methods of oil and gas extraction use two to five barrels of water per barrel of oil produced, says Eleanor Binner, an engineer on Robinsons team.
Microwave extraction can yield not just oil, but water pure enough to drink
By contrast, Kearl says, oil-producing rocks for example the Green River formation in the western US, which contains the largest oil shale deposit in the world would yield a barrel of water for every two barrels of oil. The hydrocarbons and water can be easily separated once condensed, says Robinson.
Oh I can hardly wait until the enviro-whacko’s hear about this. If they thought fracking was bad - this is gonna be fun
Thanks for posting this. Sounds promising.
“They’re gonna zap all the earthworms!!!”
It will be to “Save the Whales!”
It will be to “Save the Whales!”
Microwave ovens will now have a “frack” button.
“Come and listen to my story bout a man named Jed.
A poor mountaineer barely kept his family fed.
And then one day he was microwaving popcorn
And up from the ground came a bubbling crude.”
Just doesn’t work.
Mixing oil and water nearer to the surface. They are going to cry ground water, well, and aquifer contamination.
Giant microwave??? I’ll get the popcorn.
Indeed. Fracking is already absolutely safe. The Watermelons will be opposed to anything traditional energy companies do
Dammit. How are we ever going to become a society of hunter-gatherers who have to rely on sunlight and wind for power if people keep inventing new ways to produce cheap oil?
Will it nuke animals underground too?
Whatis the energy cost to power this? Sounds like 500 kwatts but what does this add onto the pumping costs?
Don’t know how much oil they’ll get, but I can see an endless supply of bad SyFy movies.
I am sure Trump will let them go and explore this method to determine whether it is indeed as good as it sounds, and if it is, then let them use it in the industry.
"Qmast estimates his pumping costs will be about $9 per barrel, which is only about $2 more than conventional wells."
....then one day he was microwaving food,
and up from the ground came a’ bubblin’ crude.
Exxon radiated oil shale back in the 70s around Rifle, Colorado.
Didn’t work very well.
The shale became larger after the oil was zapped out.
Yes, PUMPING COSTS, ie bringing up the oil. Does this include the energy they will use powering the microwave to cook the shale to release the oil? half a megawatt isn’t going to be inexpensive.
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