ESTABLISHMENT AND APPLICATION OF HEAT FLOW COUPLING MODEL

Main Article Content

Ling-Tao YU Jun HE Gao-Liang PENG Chen-Zheng LI Chuan-Hao LI Guo-Juan CHENG

Abstract

Wax deposition on walls of oil pipes is a common occurrence in crude oil extraction and is one of the major impediments to oilfield production. The most common method of paraffin removal is superconducting car thermal washing. This study proposes a heat flow coupling model that can analyze the temperature of the tubing-casing annular space to solve the low  efficiency problem caused by adjusting initial parameters empirically. Using the superconducting car thermal washing process at the test oil well in Daqing as research object, the real-time temperature of annulus under various initial conditions is acquired by the fully-distributed Raman optical fiber temperature monitoring system. Compared with the real-time data, theoretical data has a maximum deviation of 5 °C; this result verifies the accuracy of the model. Based on the model, the study investigates the  optimal initial parameters of superconducting car thermal washing by taking effective depth as an optimization goal; the optimal parameters for oil wells with different working conditions are obtained to improve the effectiveness  of paraffin removal and increase thermal efficiency. This study provides theoretical support and an inspection method to promote superconducting car thermal washing and paraffin removal as well as to improve productive efficiency.

Article Details

How to Cite
YU, Ling-Tao et al. ESTABLISHMENT AND APPLICATION OF HEAT FLOW COUPLING MODEL. Thermal Science, [S.l.], mar. 2017. ISSN 2334-7163. Available at: <http://thermal-science.tech/journal/index.php/thsci/article/view/2417>. Date accessed: 24 feb. 2018. doi: https://doi.org/10.2298/TSCI160422025P.
Section
Articles
Received 2017-03-15
Accepted 2017-03-15
Published 2017-03-15

References

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