难钻进地层用新型钻头、钻具及泥浆的研究

Research on New Type of Drilling Bits, Tools and Mud in Difficult Drilling Formations

摘要:

阐述了难钻进地层用新型金刚石钻头的结构、制造特点，射流式钻具的原理、类型，以及防塌型稀释剂的作用机理。

Abstract:

The structure and manufacture of new type of bits, working principle and types of fluidic drilling tools, action mechanism of anti-cave-in thinners, for difficult formation drilling were discussed.