Numerical Simulation on displacement mechanism of fracture-cave reservoir surfactant-Assisted N2 huff and puff in Tahe Oilfield

DOI

10.2991/icmse-18.2018.80How to use a DOI?

Keywords

surfactant；N2 huff and puff；numerical simulation；fracture-cave；enhanced oil recovery；

Abstract

Some fracture-cave units controlled by single well in fractured-vuggy carbonate reservoirs lack natural energy, which leads to rapid decline of production and recovery. Having applied the N2 huff and puff, Tahe Oilfield has improved their exploitation. However, the effect of N2 injection weakens in the production process. So it is necessary to seek new method for exploitation of fractured-vuggy reservoirs. Combing with the numerical simulation, then analyzing the qualitative and quantitative influences of injection rate, injection concentration of surfactant on the recovery efficiency of isolated fracture-cave units, this paper focuses on the problem of the fractured-vuggy carbonate oil reservoir’s low recovery, and also forecasts the effect of the different surfactant-Assisted N2 huff and puff scheme, then presents the best plan in this reservoir condition and acquires the main control factors of the surfactant - assisted N2 huff and puff.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Liping Yang
AU  - Baodong Ding
PY  - 2018/05
DA  - 2018/05
TI  - Numerical Simulation on displacement mechanism of fracture-cave reservoir surfactant-Assisted N2 huff and puff in Tahe Oilfield
BT  - Proceedings of the 2018 8th International Conference on Manufacturing Science and Engineering (ICMSE 2018)
PB  - Atlantis Press
SP  - 415
EP  - 421
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-18.2018.80
DO  - 10.2991/icmse-18.2018.80
ID  - Yang2018/05
ER  -