Bit is the tool of crash rock and rateofdrilling is deep related with type of bit.
钻头是直接破碎井底岩石的工具，钻井速度的高低与钻头类型密切相关。
2
Geological exploration will increase the efficiency of research and to increase the types of data analysis capabilities, ultimately raising the success rateofdrilling.
将提高勘探地质研究人员的工作效率，以及提高对各类资料的综合分析能力，最终提高钻探的成功率。
3
Real-time evaluating the stratum by the using LWD (Logging While Drilling) curve could ensure horizontal borehole extend effectively in the reservoir bed and improve rateofdrilling.