Analysis of the flow and thermal-fluid–solid coupling of crude oil in circular pipe caused by variable pressure gradient-Reference-Cited by-同舟云学术

Analysis of the flow and thermal-fluid–solid coupling of crude oil in circular pipe caused by variable pressure gradient

Published:2024-05-09 Issue:8 Volume:79 Page:795-804
ISSN:0932-0784
Container-title:Zeitschrift für Naturforschung A
language:en
Short-container-title:

Author:

Jiang Jinxia¹,Liu Mengqi²,Zhang Yan³,Huang Zhen⁴

Affiliation:

1. 118188 Dezhou Vocational and Technical College , Dezhou 253000 , China

2. Dongying Technician College , Dongying 257091 , China

3. School of Science , 117781 Beijing University of Civil Engineering and Architecture , Beijing 100044 , China

4. Shandong Cultural Industry Vocational College , Qingdao 266699 , China

Abstract

Abstract Globally, enhanced oil recovery (EOR) has become a pressing issue as the demand for crude oil continues to increase. This study investigates the flow and thermal-fluid–solid coupling of crude oil in a rod pump during hot water recovery and obtains the maximum recovery of crude oil in a vertical pipeline through numerical analysis. The pressure gradient in the pump barrel was first developed and deduced based on the ideal gas state equation and Bernoulli’s equation. According to the rheological experiment results, it was proven that the light crude oil conforms to the Newtonian constitutive equation. Subsequently, the momentum equation of crude oil flowing in the pipeline and fluid–solid coupling heat transfer equations were established and solved using the finite difference method. The effects of the thermal recovery temperature T w , wall thickness c, and stroke time n of the rod pump on flow Q are discussed. In particular, the flow Q within 1 min first increases and then slows down with the increase in stroke time n and reaches its maximum value at n = 7 r/min. Furthermore, flow Q decreases with an increase in c but increases as T w increases; c = 1.2 cm, T w = 363 K is the best oil recovery scheme.

Funder

National Natural Science Foundation of China

Humanities and Social Sciences Youth Foundation, Ministry of Education

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/zna-2023-0293/pdf

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