Title: Difference in perforation rates of jetting tool nozzles and influencing factors

Authors: Jiarui Cheng; Yihua Dou; Ningsheng Zhang; Zhen Li; Lu Cui

Addresses: State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, 710049 Xi'an, China ' Department of Mechanical Engineering, Xi'an Shiyou University, 710065 Xi'an, China ' Department of Petroleum Engineering, Xi'an Shiyou University, 710065 Xi'an, China ' Department of Mechanical Engineering, Xi'an Shiyou University, 710065 Xi'an, China ' Department of Mechanical Engineering, Xi'an Shiyou University, 710065 Xi'an, China

Abstract: Variations in the rates of hydraulic perforation among different jetting nozzles are common in gas well development, especially the multi-stage perforation of horizontal wells. A laboratory experiment was conducted to analyse the effects of flow rate, liquid viscosity and particle size on the perforation rate of a multi-nozzle structure under liquid-solid flow. The spatial distributions of particles and sample erosion rates were documented for multi-stage multi-angle nozzles with a variable difference in liquid properties and flow parameters using three particle sizes. Results showed that the difference in perforation rates among the nozzles was affected by the particle distribution inside the jetting tool and the energy of the particles ejected by each nozzle. Furthermore, the difference in perforation rates of nozzles with different jet angles was markedly affected by particle size, then by the flow rate and finally the liquid viscosity. [Received: April 15, 2018; Accepted: May 28, 2018]

Keywords: hydraulic perforation rate; multi-stage and multi-angle nozzles; jet erosion test; perforation non-uniformity; particle following property.

DOI: 10.1504/IJOGCT.2020.106702

International Journal of Oil, Gas and Coal Technology, 2020 Vol.24 No.1, pp.102 - 127

Received: 15 Apr 2018
Accepted: 28 May 2018
Published online: 20 Apr 2020 *

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