NR  Vol.4 No.5 , September 2013
The Theory and Experimental Study of the Self-Excited Oscillation Pulsed Jet Nozzle (Pipeline Pulsed Flow Generator)
ABSTRACT

In this paper, the basic theories of the Self-excited Oscillation Pulsed Jet Nozzle (SEOPJN) invented by the authors are introduced. Then, some experimental results are shown. According to the results, using tricorn bits assembled the SEOPJN to drill oil well, the rate of penetration (ROP) increases by 8% - 77%, and the rate of the footage for tricorn bit increases by 6.7% - 44%. Although the test was conducted in the water, good result was got in nature gas transportation. The volume of gas transportation could be increased by the Self-excited Oscillation Pulsed generator while the gas pressure drop could be decreased, since it significantly reduced the pressure loss during gas transportation.


Cite this paper
S. Lai and Z. Liao, "The Theory and Experimental Study of the Self-Excited Oscillation Pulsed Jet Nozzle (Pipeline Pulsed Flow Generator)," Natural Resources, Vol. 4 No. 5, 2013, pp. 395-403. doi: 10.4236/nr.2013.45049.
References
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[3]   Z. F. Liao, et al., “Theory and Experimental Study of the Self-Excited Oscillation Pulsed Jet Nozzle,” Chinese Journal Mechanical Engineering, Vol. 16, No. 4, 2003, pp. 379-383. doi:10.3901/CJME.2003.04.379

[4]   Z. F. Liao, C. L. Tang and G. H. Wang, “A New Type of Nozzle for Oil-Well Drill Bits,” Proceedings 10th International Symposium on Jet Cutting Technology, Netherlands, 31 October-2 November 1990, pp. 135-144.

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[6]   C. L. Tang, X. H. Li and Z. F. Liao, “The Study of Oscillation Jet Nozzle with Flow control Oscillator,” Proceedings of the 9th American Water Jet Conference, Dearborn, 23-26 August 1997, pp. 27-34.

[7]   C. L. Tang and Z. F. Liao, “The Application of the Airlift and the Self-Excited Oscillation Pulsed on Exploiting Beach Placer,” 14th International Conference on Jetting Cutting Technology, Brugge, 21-23 September 1998, pp. 375-386.

[8]   C. L. Tang and Z. F. Liao, “The Theory and Experimental Study of Self-Excited Oscillation Pulsed Jet Nozzle,” Journal of China Coal Society, Vol. 12, No. 1, 1989, pp. 90-100.

[9]   Z. F. Liao, D. S. Chen and Y. F. Kang, “The Pipeline Pulsing Flow Generator,” China Patent No. ZL200510057466.6, 2006.

 
 
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