That’s theoretically possible, but how do you install them? Power them? Deal with abrasive particles and lubrication issues?
What people have decided is more practical is: have a big bucket in the hole, and have compressed air blow the cuttings into the bucket. Then it’s periodically lifted up and emptied. But liquid drilling fluid has other advantages, like balancing pressure down in the hole.
Of course, with microwave drilling you can’t use liquid and need a large mass flow of air for cooling.
That’s theoretically possible, but how do you install them? Power them? Deal with abrasive particles and lubrication issues?
What people have decided is more practical is: have a big bucket in the hole, and have compressed air blow the cuttings into the bucket. Then it’s periodically lifted up and emptied. But liquid drilling fluid has other advantages, like balancing pressure down in the hole.
Of course, with microwave drilling you can’t use liquid and need a large mass flow of air for cooling.