Mud Injection

Mud Injection

 

in mining a means of combating underground fires by delivering mud slurry (a mixture of water with clay or fine-grain sand) to mine workings and worked-out areas. Fires are extinguished with mud through individual wells drilled from the surface, through group wells and a network of underground pipelines, and through underground wells. A distinction is made between preventive mud injection and mud injection for extinguishing fires. In preventive mud injection the mud mix fills hollows and cracks and pre-vents air from getting to the fire-hazard area, thus averting spontaneous combustion of the mineral involved.

REFERENCES

Baltaitis, V. la. Tushenie pozharov v ugol’nykh shakhtakh, 2nd ed. Moscow, 1961.
Gofbauer, I. Bor’ba s podzemnymi pozharami. Moscow, 1962. (Translated from Czech.)
References in periodicals archive ?
Initial flow testing of the well has returned disappointing results, from which we infer the possibility of formation damage, due to the mud injection, and a limited ability to lift all of the heavy mud from the well bore.
If the mud injection succeeds in overcoming the upward pressure of oil in the well, which stretches 5 kilometres below the sea floor, engineers will proceed with pumping in cement.