In the production process of oil and gas fields, for old wells, sealed wells, etc., if the bridge plug or packer is inserted into the well for a long time, the sealing cylinder will harden under the high-temperature and high-pressure environment of the wellbore. The sealing cylinder cannot contract normally and tightly adhere to the inner wall of the casing. During the tool unsealing and lifting process, impurities such as scale and rust on the casing wall will be scraped off and continuously accumulated, ultimately causing the bridge plug or packer to jam and unable to successfully complete the tool unsealing and salvage. During construction, the method of repeatedly moving the pipe column and suspending it is usually used for unblocking, and nitrogen gas lifting and lowering liquid construction is added, but the results are not ideal. During the process of moving the tubing, fatigue damage to the tubing increases the risk of well control and complex wellbore conditions, while significantly prolonging the construction period and increasing construction costs. Therefore, it is urgent to develop a degradation and ablation agent for hardened rubber parts, which can degrade and soften the hardened rubber cylinder, ensuring the smooth operation of tool salvage. Rubber products obtained through normal cross-linking reactions exhibit a regular grid like molecular structure, which can resist the invasion of organic molecules and oxidant molecules. This is also the reason why rubber products are resistant to organic solvents and acid-base corrosion. The experiment proposes to use a combination of "dissolution" and "destruction" methods to soften and melt the excessively cross-linked and hardened rubber cylinder.
| Published in | Science Discovery (Volume 12, Issue 4) |
| DOI | 10.11648/j.sd.20241204.13 |
| Page(s) | 89-93 |
| 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), 2024. Published by Science Publishing Group |
Bridge Plug Fishing, Packer Unsealing, Hardening of Rubber Parts, Ablation Agent, Degradation Softening
有机溶剂 | 强氧化剂 | 筛选方式 | 有效组合体系 | 实验结果 |
YJ-1 | YH-1 | 将不同的有机溶剂与强氧化剂分别进行混配，形成15种消融剂体系，并分别置于100°C的恒温环境下，与硬化的胶筒进行反应。 | YJ-3与YH-2 | 2小时胶筒表面开始软化，4小时软化部分向胶筒深部拓展，8小时胶筒彻底软化 |
YJ-2 | YH-2 | YJ-4与YH-2 | 12小时胶筒表面出现一层软化层后无变化 | |
YJ-3 | YH-3 | / | 通过实验观察，其他组合方式制备的消融剂对橡胶的软化降解作用非常微弱 | |
YJ-4 | / | / | ||
YJ-5 | / | / |
编号 | 温度 °C | 腐蚀介质 | 腐蚀时间/ h | 蚀前重/ g | 蚀后重/g | 腐蚀速度 g/㎡h |
1 | 120 | 消融剂 | 12 | 10.779 | 10.774 | 0.005 |
2 | 120 | 消融剂 | 12 | 10.761 | 10.756 | 0.005 |
3 | 120 | 消融剂 | 12 | 10.736 | 10.729 | 0.007 |
序号 | 井号 | 消融剂用量/m³ | 处理及反应时间 /h | 使用效果 |
1 | 苏49-1 | 1.2 | 20 | 一次打捞成功 |
2 | 苏3 | 1 | 6 | 一次打捞成功 |
3 | 苏4-3 | 1.2 | 8 | 一次打捞成功 |
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APA Style
Dong, Y., Yongqiang, R., Wei, Z., Zhihong, W., Jianbao, W., et al. (2024). Application Research of Bridge Plug Packer Rubber Tube Ablation Technology in Gas Storage. Science Discovery, 12(4), 89-93. https://doi.org/10.11648/j.sd.20241204.13
ACS Style
Dong, Y.; Yongqiang, R.; Wei, Z.; Zhihong, W.; Jianbao, W., et al. Application Research of Bridge Plug Packer Rubber Tube Ablation Technology in Gas Storage. Sci. Discov. 2024, 12(4), 89-93. doi: 10.11648/j.sd.20241204.13
AMA Style
Dong Y, Yongqiang R, Wei Z, Zhihong W, Jianbao W, et al. Application Research of Bridge Plug Packer Rubber Tube Ablation Technology in Gas Storage. Sci Discov. 2024;12(4):89-93. doi: 10.11648/j.sd.20241204.13
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Download@article{10.11648/j.sd.20241204.13,
author = {Yang Dong and Ren Yongqiang and Zhang Wei and Wei Zhihong and Wang Jianbao and Zhou Jianhua},
title = {Application Research of Bridge Plug Packer Rubber Tube Ablation Technology in Gas Storage
},
journal = {Science Discovery},
volume = {12},
number = {4},
pages = {89-93},
doi = {10.11648/j.sd.20241204.13},
url = {https://doi.org/10.11648/j.sd.20241204.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20241204.13},
abstract = {In the production process of oil and gas fields, for old wells, sealed wells, etc., if the bridge plug or packer is inserted into the well for a long time, the sealing cylinder will harden under the high-temperature and high-pressure environment of the wellbore. The sealing cylinder cannot contract normally and tightly adhere to the inner wall of the casing. During the tool unsealing and lifting process, impurities such as scale and rust on the casing wall will be scraped off and continuously accumulated, ultimately causing the bridge plug or packer to jam and unable to successfully complete the tool unsealing and salvage. During construction, the method of repeatedly moving the pipe column and suspending it is usually used for unblocking, and nitrogen gas lifting and lowering liquid construction is added, but the results are not ideal. During the process of moving the tubing, fatigue damage to the tubing increases the risk of well control and complex wellbore conditions, while significantly prolonging the construction period and increasing construction costs. Therefore, it is urgent to develop a degradation and ablation agent for hardened rubber parts, which can degrade and soften the hardened rubber cylinder, ensuring the smooth operation of tool salvage. Rubber products obtained through normal cross-linking reactions exhibit a regular grid like molecular structure, which can resist the invasion of organic molecules and oxidant molecules. This is also the reason why rubber products are resistant to organic solvents and acid-base corrosion. The experiment proposes to use a combination of "dissolution" and "destruction" methods to soften and melt the excessively cross-linked and hardened rubber cylinder.
},
year = {2024}
}
TY - JOUR T1 - Application Research of Bridge Plug Packer Rubber Tube Ablation Technology in Gas Storage AU - Yang Dong AU - Ren Yongqiang AU - Zhang Wei AU - Wei Zhihong AU - Wang Jianbao AU - Zhou Jianhua Y1 - 2024/08/20 PY - 2024 N1 - https://doi.org/10.11648/j.sd.20241204.13 DO - 10.11648/j.sd.20241204.13 T2 - Science Discovery JF - Science Discovery JO - Science Discovery SP - 89 EP - 93 PB - Science Publishing Group SN - 2331-0650 UR - https://doi.org/10.11648/j.sd.20241204.13 AB - In the production process of oil and gas fields, for old wells, sealed wells, etc., if the bridge plug or packer is inserted into the well for a long time, the sealing cylinder will harden under the high-temperature and high-pressure environment of the wellbore. The sealing cylinder cannot contract normally and tightly adhere to the inner wall of the casing. During the tool unsealing and lifting process, impurities such as scale and rust on the casing wall will be scraped off and continuously accumulated, ultimately causing the bridge plug or packer to jam and unable to successfully complete the tool unsealing and salvage. During construction, the method of repeatedly moving the pipe column and suspending it is usually used for unblocking, and nitrogen gas lifting and lowering liquid construction is added, but the results are not ideal. During the process of moving the tubing, fatigue damage to the tubing increases the risk of well control and complex wellbore conditions, while significantly prolonging the construction period and increasing construction costs. Therefore, it is urgent to develop a degradation and ablation agent for hardened rubber parts, which can degrade and soften the hardened rubber cylinder, ensuring the smooth operation of tool salvage. Rubber products obtained through normal cross-linking reactions exhibit a regular grid like molecular structure, which can resist the invasion of organic molecules and oxidant molecules. This is also the reason why rubber products are resistant to organic solvents and acid-base corrosion. The experiment proposes to use a combination of "dissolution" and "destruction" methods to soften and melt the excessively cross-linked and hardened rubber cylinder. VL - 12 IS - 4 ER -
China National Petroleum Corporation Bohai Drilling Engineering Company Limited Downhole Services Company, Renqiu, China
Biography: 杨东，1982年7月出生，男，汉族，河北省沧州市黄骅县，工程师，本科，2012年毕业于西南石油大学石油工程专业，主要从事油气田试油、试气技术管理工作。
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