近钻头地质导向系统是开发薄油藏、复杂架构井钻井的必备钻井仪器。本文设计了一种新型近钻头随钻仪器,主要功能包括近钻头井斜测量、近钻头电阻率测量、以及方位伽马成像等。首次在近钻头处采用传播电阻率测量原理进行钻头处电阻率测量,大大提高了地层探测深度,实现了精确地质导向。 The near-bit geosteering system is an essential drilling instrument for the development of thin reservoirs and complicated structure well drilling. This paper designs a new near-bit drilling while drilling instrument, the main features include near-bit deviation measurement, near-bit resistivity measurement, and azimuth gamma imaging. For the first time, the resistivity measurement at drill bit is based on the principle of propagation resistivity measurement near the drill bit, which greatly improves the depth of formation exploration and realizes precise geosteering.