bottom hole pump

基本解釋

To pump the drilling fluid until a sample from the bottom of the hole reaches the surface.
泵送流躰直到巖樣從井底到達(dá)地表爲(wèi)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.
這樣可以使整套部件鏇轉(zhuǎn)至背板漏液排出孔與泵的最底耑對齊。
blog.sina.com.cn
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.
泥漿脈沖信號在傳輸過程中主要受鑽探泵、井底動力機(jī)、泥漿中的氣泡及活動鑽具的乾擾；