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A process for the reduction of the torque during the rotary drilling of oil - and gas wells
A process for the reduction of the torque during the rotary drilling of oil - and gas wells
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机译:一种在油气井旋转钻井过程中降低扭矩的方法
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摘要
A method of reducing drag and rotating torque in the rotary drilling of oil and gas wells comprising the incorporation of quantities of minute spherical glass beads in a liquid drilling fluid.
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