Method for preventing fluid migration in coal seams

Details Method for preventing fluid migration in coal seams Method for preventing fluid migration in coal seams

1975-07-14

1977-03-01

Gilliam, Paul R.

E02D 314

Patent

active

040095789

ABSTRACT:
A method for preventing fluid migration in coal seams by forming a substantially fluid impermeable zone across the fluid migration path by positioning at least one borehole in the coal seams in a direction generally parallel to the direction of fluid migration; injecting anhydrous hydrogen chloride or ammonia into the coal seams through the boreholes; and thereafter plugging the boreholes to prevent retrograde flow of the hydrogen chloride or ammonia.

REFERENCES:
patent: 2675083 (1954-04-01), Bond et al.
patent: 3163010 (1964-12-01), Carpenter
patent: 3845632 (1974-11-01), Slobod et al.
patent: 3878686 (1975-04-01), Hageman et al.

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