Experimental Study on the Mechanism of Thermal Composite Chemical Efficiency Enhancement in Offshore Heavy Oil Reservoir

DOI

10.2991/978-94-6463-415-0_77How to use a DOI?

Keywords

Bohai heavy oil field; thermal combined chemical huff and puff; performance evaluation

Abstract

X Oilfield is a representative of Bohai Extra Heavy Oil Reservoir, with high crude oil viscosity, large oil layer thickness, and large reserve scale. However, based on the current experience of thermal recovery experimental areas, the simple use of steam stimulation development method has low production capacity, short validity period, and low recovery rate, making it difficult to meet the threshold of offshore economic development and achieve large-scale and effective development. It is urgent to explore efficient thermal recovery technologies suitable for offshore heavy oil. This study designed three sets of thermal recovery physical experiments for comparison. The total recovery rate of composite thermochemical huff and puff mining is 21.5%, which is 7.50% higher than that of steam huff and puff mining. It can be seen that composite chemical efficiency enhancement based on steam stimulation can further expand the heating radius, extend the thermal recovery validity period, and improve development effectiveness. Through this technological research, a set of offshore heavy oil thermal composite chemical efficiency enhancement technology has been formed, thereby enriching and developing a new efficient development model for Bohai heavy oil fields, and achieving economic and efficient development of offshore heavy oil reservoirs.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Hui Cai
AU  - Yingxian Liu
AU  - Jie Tan
AU  - Pengfei Mu
PY  - 2024
DA  - 2024/05/14
TI  - Experimental Study on the Mechanism of Thermal Composite Chemical Efficiency Enhancement in Offshore Heavy Oil Reservoir
BT  - Proceedings of the 2023 9th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2023)
PB  - Atlantis Press
SP  - 719
EP  - 728
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-415-0_77
DO  - 10.2991/978-94-6463-415-0_77
ID  - Cai2024
ER  -