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 language | English |
|---|---|
| Pages (from-to) | 647-666 |
| Number of pages | 20 |
| Journal | SPE Production and Operations |
| Volume | 34 |
| Issue number | 3 |
| Early online date | 1 Jun 2019 |
| DOIs | |
| Publication status | Published - 1 Aug 2019 |
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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 journal › Article
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 -