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Prediction of Field Drag Reduction by a Modified Practical Pipe Diameter Model
Author(s) -
Zhao Jinzhou,
Chen Pengfei,
Liu Youquan,
Zhao Wanwei,
Mao Jincheng
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201600570
Subject(s) - drag , petroleum engineering , radius , reduction (mathematics) , fracturing fluid , drag coefficient , field (mathematics) , geotechnical engineering , well stimulation , environmental science , geology , mechanics , reservoir engineering , physics , mathematics , petroleum , paleontology , geometry , computer security , computer science , pure mathematics
Slick water fracturing is a successful stimulation technology for gas shales. Due to the high pumping rates associated with slick water fracturing, drag reduction (DR) is critical to the success of field operations. In this study, three drag‐reducing agents were tested in a laboratory setup and the results were compared with data from numerous slick water fracturing treatments in the field in China. The results show that, as long as the slopes of effective pipe radius versus velocity from the laboratory‐scale tubes and from the field pipes are close, field drag reduction can be predicted by a modified correlation between DR and velocity established in the laboratory. The modified practical pipe diameter model should be useful in the design of slick water fracturing treatments and the selection of drag‐reducing agents in the laboratory.