Method for laser drilling subterranean earth formations

Details Method for laser drilling subterranean earth formations Method for laser drilling subterranean earth formations

1975-10-20

1976-08-31

Purser, Ernest R.

Boring or penetrating the earth

Boring by directly applying heat to fluidize or comminute

Electrically produced heat

219121LM, 175 71, 166308, E21C 1900

Patent

active

039774783

ABSTRACT:
Laser drilling of subterranean earth formations is efficiently accomplished by directing a collimated laser beam into a bore hole in registry with the earth formation and transversely directing the laser beam into the earth formation with a suitable reflector. In accordance with the present invention, the bore hole is highly pressurized with a gas so that as the laser beam penetrates the earth formation the high pressure gas forces the fluids resulting from the drilling operation into fissures and pores surrounding the laser-drilled bore so as to inhibit deleterious occlusion of the laser beam. Also, the laser beam may be dynamically programmed with some time dependent wave form, e.g., pulsed, to thermally shock the earth formation for forming or enlarging fluid-receiving fissures in the bore.

REFERENCES:
patent: 3461964 (1969-08-01), Venghiattis
patent: 3493060 (1970-02-01), Van Dyk
patent: 3527198 (1970-09-01), Takaoka
patent: 3539221 (1970-11-01), Gladstone
patent: 3693718 (1972-09-01), Stout
patent: 3871485 (1975-03-01), Keenan, Jr.

Affiliated with

Also associated with

Rating

Method for laser drilling subterranean earth formations does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for laser drilling subterranean earth formations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for laser drilling subterranean earth formations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1809976