| 释义 |
hydraulic fracturing
hydraulic fracturingn. The process of extracting oil or natural gas by injecting a mixture of water, sand or gravel, and certain chemicals under high pressure into well holes in dense rock to create fractures that the sand or gravel holds open, allowing the oil or gas to escape. Also called fracking.hydraulic fracturing
hydraulic fracturing[hī′drȯ·lik ′frak·chə·riŋ] (petroleum engineering) A method in which sand-water mixtures are forced into underground wells under pressure; the pressure splits the petroleum-bearing sandstone, thereby allowing the oil to move toward the wells more freely. |