LAPSE:2019.0599
Published Article
LAPSE:2019.0599
Numerical Simulation of the Effects of the Helical Angle on the Decaying Swirl Flow of the Hole Cleaning Device
Jingyu Qu, Tie Yan, Xiaofeng Sun, Zijian Li, Wei Li
June 18, 2019
The application of the hole cleaning device in downhole is a new technology that can improve the problem of cuttings accumulation in the annulus and improve the hole cleaning effect of the wellbore during drilling. In this paper, the Reynolds Averaged Navier⁻Stokes model, together with the Realizable k-ε turbulence model, are used to perform transient simulations. The effects of rotational speed, blade shape, and helical angle on the initial swirl intensity and its decay behavior along the flow direction are studied. The swirl number, the initial swirl intensity, the decay rate, the tangential velocity distribution, and the variation of pressure are analyzed. The results indicate that the swirl number of the swirl flow exponentially decays along the flow direction. The straight blade and V-shaped blade have different swirl flow induction mechanisms. Under specific drilling parameters, the critical helical angle is determined for both types of blades. When the selection of the helical angle is close to the critical value, the swirl flow will be close to the axial flow, which is of little help in hole cleaning. Moreover, the rotation direction of swirl flow will change when the helical angle exceeds the critical value.
Keywords
Computational Fluid Dynamics, decaying swirl flow, hole cleaning device, horizontal wellbore, swirl intensity
Suggested Citation
Qu J, Yan T, Sun X, Li Z, Li W. Numerical Simulation of the Effects of the Helical Angle on the Decaying Swirl Flow of the Hole Cleaning Device. (2019). LAPSE:2019.0599
Author Affiliations
Qu J: College of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China [ORCID]
Yan T: College of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
Sun X: College of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
Li Z: Department of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, NF A1B3X5, Canada
Li W: College of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
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Journal Name
Processes
Volume
7
Issue
2
Article Number
E109
Year
2019
Publication Date
2019-02-19
Published Version
ISSN
2227-9717
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Original Submission
Other Meta
PII: pr7020109, Publication Type: Journal Article
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LAPSE:2019.0599
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doi:10.3390/pr7020109
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Jun 18, 2019
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Jun 18, 2019
 
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Jun 18, 2019
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Original Submitter
Calvin Tsay
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