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downhole bums
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downhole bums
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钻井复杂事故种类
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downhole bums
井下燃爆
空气钻井或雾化空气钻井中钻遇油气层时,天然气和原油等烃类物质与含氧气体混合后,在混合物达到燃爆范围并有着着火条件的情况下,井下就可能发生燃爆,造成烧坏钻具、井眼报废等难于处理的恶性事故,给钻井带来巨大损失的情况。
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4-colour process printing
4Cs of psychological control
4C星表
4D gravity survey
4 dimensional covariant
4-dimensional covariant
4 dimensional form of Lorenz transformation
4-dimensional form of Lorenz transformation
4-dimensional geometry
4-dimensional manifold
4 dimensional n order tensor
4 dimensional n-order tensor
4-dimensional n-order tensor
4 dimensional second order tensor
4 dimensional second-order tensor
4-dimensional second-order tensor
4-dimensional universe
4D navigation
4D seismic data processing
4 force vector
4-force vector
4G
4GL
4G网络
4H-benzopyran-4-one, chromone
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