bottom hole pump

基本解释

To pump the drilling fluid until a sample from the bottom of the hole reaches the surface.
泵送流体直到岩样从井底到达地表为止。
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This can render the entire set of components to rotate back leakage from the hole and pump alignment at the bottom.
这样可以使整套部件旋转至背板漏液排出孔与泵的最底端对齐。
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In the course of transmission, mud pulse signal mainly disturbed by drilling pump, engine in the bottom hole, air bladder contained in mud and movement of drilling equipment.
泥浆脉冲信号在传输过程中主要受钻探泵、井底动力机、泥浆中的气泡及活动钻具的干扰；