Open End Pipeline Pullback Method in HDD
This paper presents an open end pipeline pullback method,in which a PE pipe is connected to the special designed pullhead inside the product pipeline.While the pipeline is being pulled in,the drilling mud in the borehole will flow into the PE pipe continuously through the openings in the pullhead.It is an innovative method that does not only solved the problem of buoyancy control of product pipeline during pullback,but also makes same other typical advantages such as borehole pressure control,more secure for pipeline and smaller pulling force.The case study indicates that the method is feasible and cost effective.
Open End Pullback Method Pullhead Horizontal Directional Drilling
Yaozu Kong Baosong Ma Yuewu Zhang Shaoxiong Wang
PhD Candidate, Engineering Faculty, China University of Geosciences; No.388, Lumo Road, Wuhan 430074 Professor, Director of China-U.S. Joint Center for Trenchless R&D, Engineering Faculty, China Univer Vice Manager, HDD Crossing Branch, China Petroleum Pipeline Bureau; No.87, Guangyang Road, Langfang General Manager, Wuhan Deawon Trenchless Technology Co., Ltd; No.388, Lumo Road, Wuhan 430074
国际会议
北京
英文
1693-1701
2012-10-14（万方平台首次上网日期，不代表论文的发表时间）