摘要
结合旋转导向钻井系统自身的特点,选择钻井液脉冲作为旋转导向钻井工具信号下传的方式,对信号下传系统钻井液压力脉冲的传播特性进行了深入研究;分析了各种钻井参数对钻井液压力脉冲幅值的影响,给出了钻井液压力脉冲的时间特性,并结合钻井液压力脉冲的传播特性和旋转导向钻井工具的自身特性设计了相适应的指令系统和编码方式。经现场试验验证,所研制的旋转导向钻井工具信号下传系统解码成功率高,能够满足旋转导向钻井的需要。
Combined with the characteristics of ro- tary steerable drilling system, the drilling fluid pressure pulse was taken as the downward signa- ling mode of the rotary steerable drilling tool and the deep study was carried out on the transmission characteristics of the drilling fluid pressure pulses in the system. The influences of various drilling parameters no the pulse amplitude were analyzed and the time characteristics of the pulses were ob- tained. Thereby the suitable command system and the coding method were designed combined with the transmission characteristics of drilling fluid pressure pulses and the characteristics of the rotary steerable drilling tool. The field test has demon- strated that the developed downward signaling sys- tem has high decoding rate and meet the needs of the rotary steerable drilling tool.
出处
《中国海上油气》
CAS
北大核心
2012年第6期42-46,65,共6页
China Offshore Oil and Gas
基金
国家高技术研究发展计划(863计划)“旋转导向钻井系统工程化技术研究(编号:2007AA090801)”部分研究成果
关键词
旋转导向钻井工具
信号下传
钻井液压力脉冲
传播特性
编码
rotary steerable drilling tool
down-ward signaling~ drilling fluid pressure pulse
prop-agation characteristic~ coding
