Research on Minimum Length Calculation of Skid-Mounted Small-Diameter Pipe Weight Bar
The drainage gas recovery operation with smalldiameter continuous pipes is applicable to the one in natural gas well with low pressure,low production and low water content. Its advantages exhibit as the following: 1) high efficiency on continuous running of pipe string under pressure;2) production while operation;3) correct monitoring the position of ejection head;and 4) precised control of ejection quantity. Due to the small diameter,thin wall thickness and relative low rigidity of pipe string,it is easy to cause bending and deformation during downhole process and affect the capability of small diameterpipe operation. Aiming at shutting and opening of the well,this thesis analyzes the force of the small-diameter pipe during down process,establishes the corresponding digital model and proposes the calculating method required to run the small-diameter pipes under different status. Taking G25-5 well as example,the appropriate minimum length of weight bar under different working status is given to verify the validness of the method to determine the minimum length of weight bar
skid-mounted small-diameter pipe drainage gas recovery & weight bar
Xue Jijun Cuan Ying
Mechanical Engineering College of Xian Shiyou University Computer College of Xian Shiyou University
国际会议
西安
英文
385-389
2011-12-23（万方平台首次上网日期，不代表论文的发表时间）