Solving the Waxy Crude Oil Pipeline Flow Restart Problem Numerically in non-isothermal Condition from the Perspective of Engineering

Junjie Gao , Chen Lei, Liu Gang, Shuyi Ren, Cheng Chen, Ruiyu Xu, John Chai

Research output: Contribution to journalArticle

Abstract

For maintenance, emergency, or other reasons, pipeline flow can stop. In the development of startup models, the heat diffusion between oil and the surrounding region has not always been considered. Here we establish a numerical restart model for buried pipelines consisting of a new simplified oil heat-transfer model and a cold oil-displacement-flow model considering oil heat diffusion to low-temperature soil and temperature gradients in the axial direction. In addition, we present our studies on the effects of axial-mesh size, timestep, different boundary conditions of the pipe wall, and shutdown in different seasons.

Original languageEnglish
Pages (from-to)647-666
Number of pages20
JournalSPE Production and Operations
Volume34
Issue number3
Early online date1 Jun 2019
DOIs
Publication statusPublished - 1 Aug 2019

Fingerprint

Pipe flow
Crude oil
Thermal gradients
Numerical models
Pipelines
Pipe
Boundary conditions
Heat transfer
Soils
Oils
Temperature
Hot Temperature

Cite this

Gao , Junjie ; Lei, Chen ; Gang, Liu ; Ren, Shuyi ; Chen, Cheng ; Xu, Ruiyu ; Chai, John. / Solving the Waxy Crude Oil Pipeline Flow Restart Problem Numerically in non-isothermal Condition from the Perspective of Engineering. In: SPE Production and Operations. 2019 ; Vol. 34, No. 3. pp. 647-666.
@article{20668aea4f5d4c8c927e5a364f518c55,
title = "Solving the Waxy Crude Oil Pipeline Flow Restart Problem Numerically in non-isothermal Condition from the Perspective of Engineering",
abstract = "For maintenance, emergency, or other reasons, pipeline flow can stop. In the development of startup models, the heat diffusion between oil and the surrounding region has not always been considered. Here we establish a numerical restart model for buried pipelines consisting of a new simplified oil heat-transfer model and a cold oil-displacement-flow model considering oil heat diffusion to low-temperature soil and temperature gradients in the axial direction. In addition, we present our studies on the effects of axial-mesh size, timestep, different boundary conditions of the pipe wall, and shutdown in different seasons.",
keywords = "waxy crude oil, displacement flow, soil temperature field, heat diffusion, engineering application",
author = "Junjie Gao and Chen Lei and Liu Gang and Shuyi Ren and Cheng Chen and Ruiyu Xu and John Chai",
year = "2019",
month = "8",
day = "1",
doi = "10.2118/195692-PA",
language = "English",
volume = "34",
pages = "647--666",
journal = "SPE Production and Operations",
issn = "1930-1855",
publisher = "Society of Petroleum Engineers (SPE)",
number = "3",

}

Solving the Waxy Crude Oil Pipeline Flow Restart Problem Numerically in non-isothermal Condition from the Perspective of Engineering. / Gao , Junjie; Lei, Chen; Gang, Liu; Ren, Shuyi; Chen, Cheng; Xu, Ruiyu ; Chai, John.

In: SPE Production and Operations, Vol. 34, No. 3, 01.08.2019, p. 647-666.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Solving the Waxy Crude Oil Pipeline Flow Restart Problem Numerically in non-isothermal Condition from the Perspective of Engineering

AU - Gao , Junjie

AU - Lei, Chen

AU - Gang, Liu

AU - Ren, Shuyi

AU - Chen, Cheng

AU - Xu, Ruiyu

AU - Chai, John

PY - 2019/8/1

Y1 - 2019/8/1

N2 - For maintenance, emergency, or other reasons, pipeline flow can stop. In the development of startup models, the heat diffusion between oil and the surrounding region has not always been considered. Here we establish a numerical restart model for buried pipelines consisting of a new simplified oil heat-transfer model and a cold oil-displacement-flow model considering oil heat diffusion to low-temperature soil and temperature gradients in the axial direction. In addition, we present our studies on the effects of axial-mesh size, timestep, different boundary conditions of the pipe wall, and shutdown in different seasons.

AB - For maintenance, emergency, or other reasons, pipeline flow can stop. In the development of startup models, the heat diffusion between oil and the surrounding region has not always been considered. Here we establish a numerical restart model for buried pipelines consisting of a new simplified oil heat-transfer model and a cold oil-displacement-flow model considering oil heat diffusion to low-temperature soil and temperature gradients in the axial direction. In addition, we present our studies on the effects of axial-mesh size, timestep, different boundary conditions of the pipe wall, and shutdown in different seasons.

KW - waxy crude oil

KW - displacement flow

KW - soil temperature field

KW - heat diffusion

KW - engineering application

UR - http://www.scopus.com/inward/record.url?scp=85072086584&partnerID=8YFLogxK

U2 - 10.2118/195692-PA

DO - 10.2118/195692-PA

M3 - Article

VL - 34

SP - 647

EP - 666

JO - SPE Production and Operations

JF - SPE Production and Operations

SN - 1930-1855

IS - 3

ER -