NDLI: Numerical simulation of pressure impact on hydro-automatic reversing valve core in a down-hole pump

Content Provider	Springer Nature Link
Author	Zhao, Wei Wang, Fengchao Guo, Chuwen
Copyright Year	2015
Abstract	Ultra-high-pressure-jet-assisted drilling is one of the main techniques for improving the rate of penetration in well drilling. The hydro-automatic reversing valve, which is a five-way, two-position control valve, is the core component of the novel down-hole pump. Two reversing valves with symmetrical structure and non-symmetrical structure were designed. And a prototype of optimized symmetrical structure hydro-automatic reversing valve was built and tested. Calculation and analysis results indicate that the down-hole pump can intensify the drilling mud to 148.5–178.5 MPa within an area ratio of 9.9 and 11.9 theoretically. Two reversing valves with symmetrical structure and non-symmetrical structure were compared and analyzed by numerical simulation. Results show that force impacting on the surface of the non-symmetrical structure hydro-automatic reversing valve core is worse than that on the optimized one. With the symmetrical structure reversing valve used in the novel down-hole pump, impact on the core surface becomes balanced, friction and abrasion of valve parts will be reduced, operation stability and safety can be enhanced.
Starting Page	525
Ending Page	533
Page Count	9
File Format	PDF
ISSN	16785878
Journal	Journal of the Brazilian Society of Mechanical Sciences and Engineering
Volume Number	38
Issue Number	2
e-ISSN	18063691
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-03-20
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Down-hole pump Hydro-automatic reversing valve Pressure impact Numerical simulation Ultra-high pressure Mechanical Engineering Symmetrical structure
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Industrial and Manufacturing Engineering Automotive Engineering Mechanical Engineering Aerospace Engineering

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