The process to put mud hydraulic cement in an area underground, to cimentacao primary in the void,To increase the capacity of a tube and formaco a cement of oil well, and to prevent leakage of gas, the composition of cement, the middle of geraco gas in hydraulic cement.The composition of the mud of hydraulic cement, and cimentacao of poco poco soda, cement of oil transportation system of underground fluid, and,Process to prevent entry of gas into a coating around a bore of poco

摘要

A process for cementing adjacent a subterranean gas-containing zone, in which process a cement slurry containing a stabilized, dispersed gas is placed adjacent the zone. Sufficient gas is present in the cement slurry or is capable of being generated within the slurry to prevent the connate formation gas under pressure from passing into or around the cement prior to the time the cement has set up.