偏心位移控制旋转导向钻井工具研制及关键技术

Development of eccentric-shifting-control rotary-steering drilling tool and key technology

蒋世全 李汉兴 傅鑫生 陈红新 程载斌 吴光武

JIANG Shiquan LI Hanxing FU Xinsheng CHEN Hongxin CHENG Zaibin WU Guangwu

中海油研究总院，北京　100027 西安石油大学，陕西西安　710065

CNOONC Research Institute, Beijing 100027, China Xi’ an Petroleum University, Xi’ an 710065, China

在概括旋转导向钻井技术应用现状的基础上，介绍了偏心位移控制旋转导向钻井工具的工作原理，重点讨论其关键技术点，论述工具面稳定及控制方法，阐述了双向信息传输系统的的实现过程，通过系统试验证明研制的旋转导向钻井系统初步实现了稳斜、造斜、扭方位功能，现场试验最大造斜率达到3.41（°）/30 m。

This paper summarizes the working principle of eccentric-shifting-controlled rotary steering drilling tools based on the status of rotary-steering drilling technology, focusing on discussion of key technical points of the eccentric-shifting-controlled rotary steering drilling tool, describing the tool face stabilization and control method and setting forth the realization process of dual-direction information transmission system. The system tests have proved that the rotary-steering drilling system has preliminarily achieved the functions of angle holding, angle building and azimuth adjusting, the maximum build-up rate of test well is 3.41（°）/30 m.