The Structure and Technical Parameters Analysis of Snubbing Unit
Snubbing service is a method of using characterized operation equipment moving the pipe string into or out of the well under pressure to complete workover. It can avoid to use killing fluid and eliminate producing formation pollution caused by killing operation, and it can maximum protect the hydrocarbon zone. Aimed at the existing snubbing units’ low efficiency, a new snubbing unit has been proposed in this paper which can achieve fast running or pulling pipe string under pressure. By the depth analysis of the main technical parameters, we can obtain the corresponding formulas, which is providing the corresponding basis theory for the design and analysis of snubbing unit.
Zhijiu Ai, Xiaodong Zhang, Yun-Hae Kim and Prasad Yarlagadda
G. X. Zhong et al., "The Structure and Technical Parameters Analysis of Snubbing Unit", Advanced Materials Research, Vol. 339, pp. 566-570, 2011