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单词 relief well
释义

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relief well
relief well n. a hole drilled to intersect an oil or gas well in which there is a fire or blowout, so as to provide a route for water or mud to stop it.
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society > occupation and work > industry > drilling for oil or gas > [noun] > hole drilled
test-hole1909
relief well1914
slim hole1953
1914 Moberly (Missouri) Daily Monitor 22 Jan. 1/1 A relief well was first bored close to the old well.
1939 D. Hager Fund. Petroleum Industry ix. 222 The relief well was deflected so that it reached the burning hole at a depth of 7046 ft.
1991 New Scientist 23 Mar. 21/3 Drilling a relief well can take more than a month, which is one reason why fire fighters avoid using them.
extracted from reliefn.2
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