西南石油大学学报（自然科学版）
西南石油大學學報（自然科學版）
서남석유대학학보（자연과학판）
JOURNAL OF SOUTHWEST PETROLEUM UNIVERSITY(SEIENCE & TECHNOLOGY EDITION)
2014年
6期
150-159
,共10页
黏滑%钻柱振动%钻柱动力学%扭转振动模型%仿真
黏滑%鑽柱振動%鑽柱動力學%扭轉振動模型%倣真
점활%찬주진동%찬주동역학%뉴전진동모형%방진
stick-slip%drillstring vibration%drillstring dynamics%torsional vibration model%simulation
以四自由度钻柱动力学方程为基础，结合钻头–岩石的相互作用规律，分析了钻柱在直井眼内的动力学特征，研发了多自由度钻柱粘滑振动仿真软件。利用该软件开展了钻柱动力学行为影响的单因素分析，得出了管柱、钻头和转盘的刚度与转动惯量，以及钻压、转速等对钻柱动力学行为的影响规律，获得了钻柱运动的4种状态特征。通过对实际钻柱动力学参数的仿真分析，表明钻杆越长，钻铤越短，钻柱越容易处于黏滑振动状态。另外，改变钻柱的内外直径不可能有效抑制黏滑振动。研究成果对现场钻井作业具有非常实用的指导意义。
以四自由度鑽柱動力學方程為基礎，結閤鑽頭–巖石的相互作用規律，分析瞭鑽柱在直井眼內的動力學特徵，研髮瞭多自由度鑽柱粘滑振動倣真軟件。利用該軟件開展瞭鑽柱動力學行為影響的單因素分析，得齣瞭管柱、鑽頭和轉盤的剛度與轉動慣量，以及鑽壓、轉速等對鑽柱動力學行為的影響規律，穫得瞭鑽柱運動的4種狀態特徵。通過對實際鑽柱動力學參數的倣真分析，錶明鑽桿越長，鑽鋌越短，鑽柱越容易處于黏滑振動狀態。另外，改變鑽柱的內外直徑不可能有效抑製黏滑振動。研究成果對現場鑽井作業具有非常實用的指導意義。
이사자유도찬주동역학방정위기출，결합찬두–암석적상호작용규률，분석료찬주재직정안내적동역학특정，연발료다자유도찬주점활진동방진연건。이용해연건개전료찬주동역학행위영향적단인소분석，득출료관주、찬두화전반적강도여전동관량，이급찬압、전속등대찬주동역학행위적영향규률，획득료찬주운동적4충상태특정。통과대실제찬주동역학삼수적방진분석，표명찬간월장，찬정월단，찬주월용역처우점활진동상태。령외，개변찬주적내외직경불가능유효억제점활진동。연구성과대현장찬정작업구유비상실용적지도의의。
In this paper,based on dynamical equation of the drillstring of four degrees of freedom and bit-rock interaction law, we analyzed the dynamic characteristics of drillstring in straight borehole. And the systemic simulation software of a multi-DOF drillstring stick-slip vibration is developed. Using this software,we made the simulation research on the influence of single factor on the dynamic behavior of the drillstring. And we also derived the influence of the stiffness and the moment of inertia of the drillstring,the bit and the rotary table,and WOB,speed,etc. on the dynamic behavior of the drillstring. In addition, the four state characteristics of the movement of the drillstring are obtained. Further practical dynamic parameter simulation of the drillstring,reveals that the longer the drillpipes are,or the shorter the drillcollars,the more likely the drillstring is in a stick-slip vibration state. In addition,changing the inner and outer diameters of the drillstring is unlikely to effectively suppress the stick-slip effect. Obviously,these results have very practical significance for on-site drilling process.
