In order to reduce the risk of large-scale thermal recovery of heavy oil in Bohai Oilfield, L Oilfield is selected to carry out horizontal well steam stimulation pilot tests. Previous studies have summarized the rationality of the injection parameters and initial production characteristics of this experiment, but the evaluation of its development effectiveness is still blank. Based on the study of the decline law of A23H well cold recovery using reservoir engineering methods, this article evaluates the initial production capacity, production increase effect, technical recoverable reserves, and throughput cycles of steam stimulation. The results show that the thermal recovery production of steam stimulation is three times that of cold recovery, which can significantly improve the production capacity of a single well. The initial daily oil production of two wells is 74m3/d and 90m3/d, respectively, which is 3.0 times and 3.6 times that of the initial production of cold recovery, exceeding the design level of the reservoir; The first round has the best yield increase effect, with an average daily oil increase of 31m3/d, and gradually decreasing thereafter. By the fifth round, it was only 13m3/d. In terms of yield increase multiples, each round can reach about 2 times; The technically recoverable reserves are 19.03 × 104m3, requiring 8-9 rounds. Through this performance evaluation, we have strengthened our confidence in promoting the application of steam injection technology in Bohai Oilfield to achieve large-scale thermal recovery.
| Published in | Science Discovery (Volume 12, Issue 3) |
| DOI | 10.11648/j.sd.20241203.13 |
| Page(s) | 54-57 |
| 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 |
Heavy Oil, Steam Throughput, Pilot Test, Effect Evaluation, Bohai Oilfield
井号 | 轮次 | 第二轮 | 第三轮 | 第四轮 | 第五轮 | |
A22H | 生产时间 | 天 | 310 | 520 | 296 | 375 |
累产油 | 方 | 10625 | 19119 | 6309 | 6774 | |
平均日产油 | 方/天 | 34 | 37 | 21 | 18 | |
A23H | 生产时间 | 天 | 323 | 331 | 254 | 680 |
累产油 | 方 | 8216 | 8860 | 6402 | 14179 | |
平均日产油 | 方/天 | 25 | 27 | 25 | 21 |
(1) 轮次 | 第一轮 | 第二轮 | 第三轮 | 第四轮 | 第五轮 | |
热采累产油 | m3 | 12003 | 8603 | 7852 | 6062 | 5327 |
热采平均日产油 | m3/d | 47 | 34 | 31 | 28 | 21 |
冷采预测累产油 | m3 | 4005 | 3488 | 2972 | 2113 | 2019 |
冷采平均日产油 | m3/d | 15.8 | 13.7 | 11.7 | 9.8 | 7.9 |
热采累增油 | m3 | 7998 | 5115 | 4880 | 3949 | 3308 |
热采平均日增油 | m3/d | 31 | 20 | 19 | 18 | 13 |
(2) 
(3) 轮次 | 第一轮 | 第二轮 | 第三轮 | 第四轮 | 第五轮 | |
累积注入量 | m3 | 7501 | 16956 | 27526 | 39744 | 53544 |
累积采出量 | m3 | 5290 | 12305 | 20733 | 29943 | 46110 |
累积存水量 | m3 | 2211 | 4651 | 6793 | 9801 | 7434 |
累计回采水率 | % | 71 | 73 | 75 | 75 | 86 |
| [1] | 吴婷婷, 张风义, 王大为等. 渤海稠油油藏分类方法及分类界限研究 [J]. 新疆石油天然气, 2019, 15(3): 64-69. |
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APA Style
Chai, S., Lian, Z., Zheng, J., Li, E. (2024). Evaluation of the Pilot Test Effect of Steam Stimulation in Horizontal Wells of Sand Bodies 1-1308 in Bohai L Oilfield. Science Discovery, 12(3), 54-57. https://doi.org/10.11648/j.sd.20241203.13
ACS Style
Chai, S.; Lian, Z.; Zheng, J.; Li, E. Evaluation of the Pilot Test Effect of Steam Stimulation in Horizontal Wells of Sand Bodies 1-1308 in Bohai L Oilfield. Sci. Discov. 2024, 12(3), 54-57. doi: 10.11648/j.sd.20241203.13
AMA Style
Chai S, Lian Z, Zheng J, Li E. Evaluation of the Pilot Test Effect of Steam Stimulation in Horizontal Wells of Sand Bodies 1-1308 in Bohai L Oilfield. Sci Discov. 2024;12(3):54-57. doi: 10.11648/j.sd.20241203.13
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Download@article{10.11648/j.sd.20241203.13,
author = {Shichao Chai and Zhengxin Lian and Jianjun Zheng and Enlin Li},
title = {Evaluation of the Pilot Test Effect of Steam Stimulation in Horizontal Wells of Sand Bodies 1-1308 in Bohai L Oilfield
},
journal = {Science Discovery},
volume = {12},
number = {3},
pages = {54-57},
doi = {10.11648/j.sd.20241203.13},
url = {https://doi.org/10.11648/j.sd.20241203.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20241203.13},
abstract = {In order to reduce the risk of large-scale thermal recovery of heavy oil in Bohai Oilfield, L Oilfield is selected to carry out horizontal well steam stimulation pilot tests. Previous studies have summarized the rationality of the injection parameters and initial production characteristics of this experiment, but the evaluation of its development effectiveness is still blank. Based on the study of the decline law of A23H well cold recovery using reservoir engineering methods, this article evaluates the initial production capacity, production increase effect, technical recoverable reserves, and throughput cycles of steam stimulation. The results show that the thermal recovery production of steam stimulation is three times that of cold recovery, which can significantly improve the production capacity of a single well. The initial daily oil production of two wells is 74m3/d and 90m3/d, respectively, which is 3.0 times and 3.6 times that of the initial production of cold recovery, exceeding the design level of the reservoir; The first round has the best yield increase effect, with an average daily oil increase of 31m3/d, and gradually decreasing thereafter. By the fifth round, it was only 13m3/d. In terms of yield increase multiples, each round can reach about 2 times; The technically recoverable reserves are 19.03 × 104m3, requiring 8-9 rounds. Through this performance evaluation, we have strengthened our confidence in promoting the application of steam injection technology in Bohai Oilfield to achieve large-scale thermal recovery.
},
year = {2024}
}
TY - JOUR T1 - Evaluation of the Pilot Test Effect of Steam Stimulation in Horizontal Wells of Sand Bodies 1-1308 in Bohai L Oilfield AU - Shichao Chai AU - Zhengxin Lian AU - Jianjun Zheng AU - Enlin Li Y1 - 2024/06/19 PY - 2024 N1 - https://doi.org/10.11648/j.sd.20241203.13 DO - 10.11648/j.sd.20241203.13 T2 - Science Discovery JF - Science Discovery JO - Science Discovery SP - 54 EP - 57 PB - Science Publishing Group SN - 2331-0650 UR - https://doi.org/10.11648/j.sd.20241203.13 AB - In order to reduce the risk of large-scale thermal recovery of heavy oil in Bohai Oilfield, L Oilfield is selected to carry out horizontal well steam stimulation pilot tests. Previous studies have summarized the rationality of the injection parameters and initial production characteristics of this experiment, but the evaluation of its development effectiveness is still blank. Based on the study of the decline law of A23H well cold recovery using reservoir engineering methods, this article evaluates the initial production capacity, production increase effect, technical recoverable reserves, and throughput cycles of steam stimulation. The results show that the thermal recovery production of steam stimulation is three times that of cold recovery, which can significantly improve the production capacity of a single well. The initial daily oil production of two wells is 74m3/d and 90m3/d, respectively, which is 3.0 times and 3.6 times that of the initial production of cold recovery, exceeding the design level of the reservoir; The first round has the best yield increase effect, with an average daily oil increase of 31m3/d, and gradually decreasing thereafter. By the fifth round, it was only 13m3/d. In terms of yield increase multiples, each round can reach about 2 times; The technically recoverable reserves are 19.03 × 104m3, requiring 8-9 rounds. Through this performance evaluation, we have strengthened our confidence in promoting the application of steam injection technology in Bohai Oilfield to achieve large-scale thermal recovery. VL - 12 IS - 3 ER -
Tianjin Branch, CNOOC
Biography: 柴世超（1971-），男，高级工程师，1996年毕业于中国石油大学（华东）油藏工程专业，2012年毕业于中国石油勘探开发科学研究院油气田开发工程专业，获硕士学位。在中海石油（中国）有限公司天津分公司从事油气田开发方面的研究工作。
Tianjin Branch, CNOOC
Tianjin Branch, CNOOC
Tianjin Branch, CNOOC
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