Matrix acidizing is an essential strategy to maintain or increase the productivity or injectivity of hydrocarbon wells. However, for sandstone reservoirs, the heterogeneous flow reaction mechanism of acid–rock in porous media is very complex because of their complex mineral and chemical compositions. It is often difficult to match real formation conditions by experimental simulation. Also, traditional numerical simulation methods have the disadvantages of complex boundary processing and low computational efficiency. In this study, the lattice Boltzmann method (LBM) was used to establish the heterogeneous flow reaction model of acid–rock from a new perspective, which was solved by MATLAB to obtain the distribution of temperature, concentration of various substances, porosity, and permeability. The simulation results indicate that with increases in injection time and injection speed, the temperature and mass transfer distance of the acid will also increase. Changing the injection time had a more obvious influence on the transfer of temperature and mass than did changing the injection speed. The increasing rates of porosity and permeability in the middle of the flow channel were the highest. The fast-reaction mineral content, hydrofluoric acid injection concentration, and acid injection time had a great influence on the acidizing effect, whereas the slow-reaction mineral content, acid injection temperature, and injection speed had little influence on the acidizing effect. The results suggest that to improve the acidizing effect, priority should be given to improve the HF concentration and acid dose. It will be important for further guiding the optimization of acidizing process design parameters.
Published in | International Journal of Oil, Gas and Coal Engineering (Volume 7, Issue 6) |
DOI | 10.11648/j.ogce.20190706.14 |
Page(s) | 130-143 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2019. Published by Science Publishing Group |
Heterogeneous Reaction, Lattice Boltzmann Method, Matrix Acidizing, Porous Media, Sandstone Reservoirs
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APA Style
Bo Ning, Zhonghua Chen, Ninghai Fu, Xin Zhao. (2019). Simulation of Acid–rock Heterogeneous Flow Reaction Based on the Lattice Boltzmann Method. International Journal of Oil, Gas and Coal Engineering, 7(6), 130-143. https://doi.org/10.11648/j.ogce.20190706.14
ACS Style
Bo Ning; Zhonghua Chen; Ninghai Fu; Xin Zhao. Simulation of Acid–rock Heterogeneous Flow Reaction Based on the Lattice Boltzmann Method. Int. J. Oil Gas Coal Eng. 2019, 7(6), 130-143. doi: 10.11648/j.ogce.20190706.14
AMA Style
Bo Ning, Zhonghua Chen, Ninghai Fu, Xin Zhao. Simulation of Acid–rock Heterogeneous Flow Reaction Based on the Lattice Boltzmann Method. Int J Oil Gas Coal Eng. 2019;7(6):130-143. doi: 10.11648/j.ogce.20190706.14
@article{10.11648/j.ogce.20190706.14, author = {Bo Ning and Zhonghua Chen and Ninghai Fu and Xin Zhao}, title = {Simulation of Acid–rock Heterogeneous Flow Reaction Based on the Lattice Boltzmann Method}, journal = {International Journal of Oil, Gas and Coal Engineering}, volume = {7}, number = {6}, pages = {130-143}, doi = {10.11648/j.ogce.20190706.14}, url = {https://doi.org/10.11648/j.ogce.20190706.14}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20190706.14}, abstract = {Matrix acidizing is an essential strategy to maintain or increase the productivity or injectivity of hydrocarbon wells. However, for sandstone reservoirs, the heterogeneous flow reaction mechanism of acid–rock in porous media is very complex because of their complex mineral and chemical compositions. It is often difficult to match real formation conditions by experimental simulation. Also, traditional numerical simulation methods have the disadvantages of complex boundary processing and low computational efficiency. In this study, the lattice Boltzmann method (LBM) was used to establish the heterogeneous flow reaction model of acid–rock from a new perspective, which was solved by MATLAB to obtain the distribution of temperature, concentration of various substances, porosity, and permeability. The simulation results indicate that with increases in injection time and injection speed, the temperature and mass transfer distance of the acid will also increase. Changing the injection time had a more obvious influence on the transfer of temperature and mass than did changing the injection speed. The increasing rates of porosity and permeability in the middle of the flow channel were the highest. The fast-reaction mineral content, hydrofluoric acid injection concentration, and acid injection time had a great influence on the acidizing effect, whereas the slow-reaction mineral content, acid injection temperature, and injection speed had little influence on the acidizing effect. The results suggest that to improve the acidizing effect, priority should be given to improve the HF concentration and acid dose. It will be important for further guiding the optimization of acidizing process design parameters.}, year = {2019} }
TY - JOUR T1 - Simulation of Acid–rock Heterogeneous Flow Reaction Based on the Lattice Boltzmann Method AU - Bo Ning AU - Zhonghua Chen AU - Ninghai Fu AU - Xin Zhao Y1 - 2019/12/13 PY - 2019 N1 - https://doi.org/10.11648/j.ogce.20190706.14 DO - 10.11648/j.ogce.20190706.14 T2 - International Journal of Oil, Gas and Coal Engineering JF - International Journal of Oil, Gas and Coal Engineering JO - International Journal of Oil, Gas and Coal Engineering SP - 130 EP - 143 PB - Science Publishing Group SN - 2376-7677 UR - https://doi.org/10.11648/j.ogce.20190706.14 AB - Matrix acidizing is an essential strategy to maintain or increase the productivity or injectivity of hydrocarbon wells. However, for sandstone reservoirs, the heterogeneous flow reaction mechanism of acid–rock in porous media is very complex because of their complex mineral and chemical compositions. It is often difficult to match real formation conditions by experimental simulation. Also, traditional numerical simulation methods have the disadvantages of complex boundary processing and low computational efficiency. In this study, the lattice Boltzmann method (LBM) was used to establish the heterogeneous flow reaction model of acid–rock from a new perspective, which was solved by MATLAB to obtain the distribution of temperature, concentration of various substances, porosity, and permeability. The simulation results indicate that with increases in injection time and injection speed, the temperature and mass transfer distance of the acid will also increase. Changing the injection time had a more obvious influence on the transfer of temperature and mass than did changing the injection speed. The increasing rates of porosity and permeability in the middle of the flow channel were the highest. The fast-reaction mineral content, hydrofluoric acid injection concentration, and acid injection time had a great influence on the acidizing effect, whereas the slow-reaction mineral content, acid injection temperature, and injection speed had little influence on the acidizing effect. The results suggest that to improve the acidizing effect, priority should be given to improve the HF concentration and acid dose. It will be important for further guiding the optimization of acidizing process design parameters. VL - 7 IS - 6 ER -