Experimental study on jet pulse assembly design and numerical simulation

作     者：Liang Xue Hu Han Dian Wang Xian-Bo Liu He Liu Zhi-Qiang Yu Liang Xue;Hu Han;Dian Wang;Xian-Bo Liu;He Liu;Zhi-Qiang Yu

作者机构：China University of Petroleum–BeijingBeijing 102249China Bohai Drilling Engineering Technology Research InstituteTianjin 300280China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2020年第17卷第1期

页      码：222-231页

摘      要：Jet pulse assembly is one of the main components of jet hydraulic *** pressure wave characteristics produced by jet pulse assembly have an important influence on the performance of the *** this paper,the structure and working principle of jet pulse assembly are studied,the mechanical analysis model of piston rod is established,the dynamic resistance ratio formula of jet pulse assembly is deduced,and the numerical simulation test of 89-mm jet pulse assembly structure parameters is carried *** results show that the piston rod downward stroke is driven by both the jet element driving force and the throttle plate load driving force,and can stably *** driving force of the piston rod upward stroke jet element is opposite to the load acting force of the throttle disc,and the jet driving force needs to be greater than the load resistance of the throttle disc to stably *** dynamic resistance ratio formula is *** the area of the end of the piston rod is reduced,the resistance of the throttle disc is reduced and the jet power is increased,thus solving the problem of insufficient power of the piston rod in the upstroke and ensuring the normal operation of the *** groups of numerical simulation tests were carried out,and it was found that the pressure amplitude and pressure drop of the tool decreased significantly with the increase of the tool size,and the error between the numerical simulation value and the theoretical calculation value was less than 9%,which verified the correctness of the *** is suggested to select tools on site according to the drilling construction situation to ensure the drilling effect.

主 题 词：Friction reduction and torsion Jet pulse assembly Dynamic resistance ratio formula Pressure amplitude Numerical simulation 

学科分类：0820[工学-航空航天类] 082001[082001] 08[工学] 

核心收录：

D　O　I：10.1007/s12182-019-00396-y

馆 藏 号：203879078...