While waiting on cementing, the cement slurry weight loss can easily lead to early annular gas channeling and sustained casing pressure. Studying the weight loss process is an important means for reducing gas channeling risk. Due to complex physical and chemical changes during cement hydration process, conventional pressure reduction prediction models based on static gel strength theory produce distorted fits. Hence, a new dimensionless prediction model has been established through a large-scale physical experiment, and the effects of relevant parameters require further investigation. In this study parameters were investigated through sensitivity analysis with a styrene-acrylic latex cement slurry system as the study object. The results showed that a high temperature and a deep wellbore depth could cause the cement slurry to lose weight rapidly, whereas a high gas pressure and a high latex content could alleviate the weight loss trend. Weight loss rate was the most sensitive to changes in temperature, followed by wellbore depth and gas pressure. The latex content had a relatively insignificant effect but could be artificially adjusted. An anti-gas channeling method that primarily involves optimization of latex content and experimental evaluation of gas channeling was proposed. The results are reference significance to guiding anti-gas channeling cementing.
| Published in | International Journal of Oil, Gas and Coal Engineering (Volume 10, Issue 3) |
| DOI | 10.11648/j.ogce.20221003.12 |
| Page(s) | 82-89 |
| 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), 2022. Published by Science Publishing Group |
Cementing, Hydrostatic Pressure Reduction, Prediction Model, Sensitivity Analysis, Anti-gas Channeling Method
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APA Style
Peiqing Lu, Sang Laiyu, Shiming Zhou, Xiaojiang Li. (2022). An Analysis and Control method on Preventing Gas Channeling in Cementing Operation. International Journal of Oil, Gas and Coal Engineering, 10(3), 82-89. https://doi.org/10.11648/j.ogce.20221003.12
ACS Style
Peiqing Lu; Sang Laiyu; Shiming Zhou; Xiaojiang Li. An Analysis and Control method on Preventing Gas Channeling in Cementing Operation. Int. J. Oil Gas Coal Eng. 2022, 10(3), 82-89. doi: 10.11648/j.ogce.20221003.12
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Download@article{10.11648/j.ogce.20221003.12,
author = {Peiqing Lu and Sang Laiyu and Shiming Zhou and Xiaojiang Li},
title = {An Analysis and Control method on Preventing Gas Channeling in Cementing Operation},
journal = {International Journal of Oil, Gas and Coal Engineering},
volume = {10},
number = {3},
pages = {82-89},
doi = {10.11648/j.ogce.20221003.12},
url = {https://doi.org/10.11648/j.ogce.20221003.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20221003.12},
abstract = {While waiting on cementing, the cement slurry weight loss can easily lead to early annular gas channeling and sustained casing pressure. Studying the weight loss process is an important means for reducing gas channeling risk. Due to complex physical and chemical changes during cement hydration process, conventional pressure reduction prediction models based on static gel strength theory produce distorted fits. Hence, a new dimensionless prediction model has been established through a large-scale physical experiment, and the effects of relevant parameters require further investigation. In this study parameters were investigated through sensitivity analysis with a styrene-acrylic latex cement slurry system as the study object. The results showed that a high temperature and a deep wellbore depth could cause the cement slurry to lose weight rapidly, whereas a high gas pressure and a high latex content could alleviate the weight loss trend. Weight loss rate was the most sensitive to changes in temperature, followed by wellbore depth and gas pressure. The latex content had a relatively insignificant effect but could be artificially adjusted. An anti-gas channeling method that primarily involves optimization of latex content and experimental evaluation of gas channeling was proposed. The results are reference significance to guiding anti-gas channeling cementing.},
year = {2022}
}
TY - JOUR T1 - An Analysis and Control method on Preventing Gas Channeling in Cementing Operation AU - Peiqing Lu AU - Sang Laiyu AU - Shiming Zhou AU - Xiaojiang Li Y1 - 2022/08/04 PY - 2022 N1 - https://doi.org/10.11648/j.ogce.20221003.12 DO - 10.11648/j.ogce.20221003.12 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 - 82 EP - 89 PB - Science Publishing Group SN - 2376-7677 UR - https://doi.org/10.11648/j.ogce.20221003.12 AB - While waiting on cementing, the cement slurry weight loss can easily lead to early annular gas channeling and sustained casing pressure. Studying the weight loss process is an important means for reducing gas channeling risk. Due to complex physical and chemical changes during cement hydration process, conventional pressure reduction prediction models based on static gel strength theory produce distorted fits. Hence, a new dimensionless prediction model has been established through a large-scale physical experiment, and the effects of relevant parameters require further investigation. In this study parameters were investigated through sensitivity analysis with a styrene-acrylic latex cement slurry system as the study object. The results showed that a high temperature and a deep wellbore depth could cause the cement slurry to lose weight rapidly, whereas a high gas pressure and a high latex content could alleviate the weight loss trend. Weight loss rate was the most sensitive to changes in temperature, followed by wellbore depth and gas pressure. The latex content had a relatively insignificant effect but could be artificially adjusted. An anti-gas channeling method that primarily involves optimization of latex content and experimental evaluation of gas channeling was proposed. The results are reference significance to guiding anti-gas channeling cementing. VL - 10 IS - 3 ER -
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