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Visualized Study on a New Preformed Particle Gels (PPG) + Polymer System to Enhance Oil Recovery by Oil Saturation Monitoring Online Flooding Experiment

After tertiary recovery from the oilfields, improving the production of the remaining hydrocarbon is always challenging. To significantly improve oil recovery, a heterogeneous composite flooding system has been developed with preformed particle gels (PPG) and polymers according to the technical appr...

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Autores principales: Pi, Yanfu, Liu, Jinxin, Cao, Ruibo, Liu, Li, Ma, Yingxue, Gu, Xinyang, Li, Xianjie, Fan, Xinyu, Zhao, Mingjia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9956667/
https://www.ncbi.nlm.nih.gov/pubmed/36826251
http://dx.doi.org/10.3390/gels9020081
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author Pi, Yanfu
Liu, Jinxin
Cao, Ruibo
Liu, Li
Ma, Yingxue
Gu, Xinyang
Li, Xianjie
Fan, Xinyu
Zhao, Mingjia
author_facet Pi, Yanfu
Liu, Jinxin
Cao, Ruibo
Liu, Li
Ma, Yingxue
Gu, Xinyang
Li, Xianjie
Fan, Xinyu
Zhao, Mingjia
author_sort Pi, Yanfu
collection PubMed
description After tertiary recovery from the oilfields, improving the production of the remaining hydrocarbon is always challenging. To significantly improve oil recovery, a heterogeneous composite flooding system has been developed with preformed particle gels (PPG) and polymers according to the technical approach of plugging and flooding combination. In addition, an oil saturation monitoring device and a large-scale 3D physical model were designed to better evaluate the performance of the technique. The evaluation results show that the viscosity, stability, and elasticity of the heterogeneous composite flooding system are better than the single polymer system. In addition, both systems exhibit pseudoplastic fluid characteristics and follow the principle of shear thinning. The results of seepage experiments showed that PPG migrates alternately in porous media in the manner of “piling plugging-pressure increasing-deformation migration”. The heterogeneous composite system can migrate to the depths of the oil layer, which improves the injection profile. In the visualization experiment, the heterogeneous composite system preferentially flowed into the high-permeability layer, which increased the seepage resistance and forced the subsequent fluid to flow into the medium and low permeability layers. The average saturation of the high, medium, and low permeability layers decreased by 4.74%, 9.51%, and 17.12%, respectively, and the recovery factor was further improved by 13.56% after the polymer flooding.
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spelling pubmed-99566672023-02-25 Visualized Study on a New Preformed Particle Gels (PPG) + Polymer System to Enhance Oil Recovery by Oil Saturation Monitoring Online Flooding Experiment Pi, Yanfu Liu, Jinxin Cao, Ruibo Liu, Li Ma, Yingxue Gu, Xinyang Li, Xianjie Fan, Xinyu Zhao, Mingjia Gels Article After tertiary recovery from the oilfields, improving the production of the remaining hydrocarbon is always challenging. To significantly improve oil recovery, a heterogeneous composite flooding system has been developed with preformed particle gels (PPG) and polymers according to the technical approach of plugging and flooding combination. In addition, an oil saturation monitoring device and a large-scale 3D physical model were designed to better evaluate the performance of the technique. The evaluation results show that the viscosity, stability, and elasticity of the heterogeneous composite flooding system are better than the single polymer system. In addition, both systems exhibit pseudoplastic fluid characteristics and follow the principle of shear thinning. The results of seepage experiments showed that PPG migrates alternately in porous media in the manner of “piling plugging-pressure increasing-deformation migration”. The heterogeneous composite system can migrate to the depths of the oil layer, which improves the injection profile. In the visualization experiment, the heterogeneous composite system preferentially flowed into the high-permeability layer, which increased the seepage resistance and forced the subsequent fluid to flow into the medium and low permeability layers. The average saturation of the high, medium, and low permeability layers decreased by 4.74%, 9.51%, and 17.12%, respectively, and the recovery factor was further improved by 13.56% after the polymer flooding. MDPI 2023-01-18 /pmc/articles/PMC9956667/ /pubmed/36826251 http://dx.doi.org/10.3390/gels9020081 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Pi, Yanfu
Liu, Jinxin
Cao, Ruibo
Liu, Li
Ma, Yingxue
Gu, Xinyang
Li, Xianjie
Fan, Xinyu
Zhao, Mingjia
Visualized Study on a New Preformed Particle Gels (PPG) + Polymer System to Enhance Oil Recovery by Oil Saturation Monitoring Online Flooding Experiment
title Visualized Study on a New Preformed Particle Gels (PPG) + Polymer System to Enhance Oil Recovery by Oil Saturation Monitoring Online Flooding Experiment
title_full Visualized Study on a New Preformed Particle Gels (PPG) + Polymer System to Enhance Oil Recovery by Oil Saturation Monitoring Online Flooding Experiment
title_fullStr Visualized Study on a New Preformed Particle Gels (PPG) + Polymer System to Enhance Oil Recovery by Oil Saturation Monitoring Online Flooding Experiment
title_full_unstemmed Visualized Study on a New Preformed Particle Gels (PPG) + Polymer System to Enhance Oil Recovery by Oil Saturation Monitoring Online Flooding Experiment
title_short Visualized Study on a New Preformed Particle Gels (PPG) + Polymer System to Enhance Oil Recovery by Oil Saturation Monitoring Online Flooding Experiment
title_sort visualized study on a new preformed particle gels (ppg) + polymer system to enhance oil recovery by oil saturation monitoring online flooding experiment
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9956667/
https://www.ncbi.nlm.nih.gov/pubmed/36826251
http://dx.doi.org/10.3390/gels9020081
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