摘要:
Process for disposing of the effluents from the distillers of ammonia-soda plants at the bottom of subterranean cavities of disused salt boreholes, the cavities being filled with a sodium chloride brine to prevent subsidence and an equivalent volume of the brine being recovered. The effluent introduced at the bottom of the borehole comprises a calcium chloride solution which has been concentrated to a density significantly higher than that of the saturated solution of sodium chloride present in the borehole.
摘要:
A method is disclosed for storage of a gas which is soluble in a liquid hydrocarbon in an underground storage cavity wherein the cavity is continuously filled with liquid even when recovering the gas.
摘要:
UNDERGROUND STORAGE COMPRISED OF A CONDUIT SYSTEM EXTENDING INTO ONE OR MORE STORAGE SECTIONS OF A LARGE, VERTICALLY EXTENDED VOLUME OF VOID SPACES AND ROCK RUBBLE, SUCH AS A CHINNEY CREATED BY A SUBSURFACE NUCLEAR EXPLOSION. EACH STORAGE SECTION TRAVERSES AN IMPERMEABLE FORMATION AND IS SEPARATED FROM A MORE PERMEABLE NONSTORAGE SECTION BY ONE OR MORE LATERAL IMPERMEABLE BARRIERS AT LEAST PARTIALLY COMPOSED OF A TIME-SETTING MATERIAL WHICH HAS SET. THE BARRIERS MAY BE FORMED BY INJECTING ENOUGH FLOWABLE, TIME-SETTING BARRIER MATERIAL LIGHTER THAN A HEAVIER LIQUID IN THE VOLUME TO FORM A FLOATING LAYER OVER THE HEAVIER LIQUID WHICH WAS PREVIOUSLY LOCATED OR LOCATED AND ADJUSTED TO A PREDETERMINED LEVEL WHICH SEPARATES IMPERMEABLE FROM PERMEABLE ZONES. A CONTROLLED FLUID LOSS MATERIAL MAY BE PLACED OPPOSITE PERMEABLE ZONES.