Open Access

ARTICLE

Design and Fluid-Dynamic Analysis of a Flushing Nozzle for Drilling Applications

Zhongshuai Chen^1,2, Hongjian Ni^1,*, Xueliang Pei², Yu Gao³

1 School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, China
2 Drilling Technology Research Institute of Shengli Petroleum Engineering Co., Ltd., Sinopec, Dongying, 257000, China
3 Shenzhen South China Sea Oil Economic Development Company, Shenzhen, 518000, China

* Corresponding Author: Hongjian Ni. Email:

(This article belongs to the Special Issue: High Pressure Jet Theory and its Applications)

Fluid Dynamics & Materials Processing 2023, 19(12), 2953-2963. https://doi.org/10.32604/fdmp.2023.029491

Received 23 February 2023; Accepted 25 April 2023; Issue published 27 October 2023

Abstract

The actuator is a key component of the creaming tool in drilling applications. Its jet performances determine the effective reaming efficiency. In this work, a new selective reaming tool is proposed and the RNG k-ε turbulence model is used to calculate its internal and external flow fields. In particular, special attention is paid to the design of the flushing nozzle. The results show that the jet originating from the flushing nozzle has a significant influence on rock cutting and blade cooling effects. In turn, the jet performances depend on geometric structure of the creaming actuator. In this framework, a conical-cylindrical nozzle with a diameter of 7 mm is initially considered as a basis to implement a strategy to optimize the structural parameters of the reaming actuator, and improve the related side tracking reconstruction technology.

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Keywords

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