Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs

Du Weigang; Gu Bing; Ji Peng; Hao Dawei; Liu Yong

doi:doi:10.11648/j.ijeee.20230804.14

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Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs

Du Weigang, Gu Bing, Ji Peng, Hao Dawei, Liu Yong

Published in International Journal of Economy, Energy and Environment (Volume 8, Issue 4)

Received: 4 May 2023 Accepted: 2 August 2023 Published: 5 August 2023

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Abstract

Offshore oil and gas fields are slow to develop offshore low permeability reservoirs due to the high pre-development costs and post maintenance costs due to the development environment and technical inputs. Due to the low yield of low permeability reservoirs, resulting in some oil and gas wells producing even less than the development cost yield, it is difficult to achieve commercial exploitation of low permeability oil and gas wells without effective reservoir modification to increase production. However, it is difficult to implement large fracturing modifications on land, as usual, to achieve increased production from oil and gas wells due to the small space for offshore operations, the high influence of sea conditions, and high environmental requirements. To realize the development of offshore low-permeability reservoirs, two low-permeability oil wells were selected as test wells to explore the development path of offshore low-permeability reservoirs. Firstly, by analyzing the volumetric fracturing process in onshore oil fields and the main difficulties of offshore construction, the packer + differential pressure slip segmental fracturing technology was optimized and selected as the fracturing solution for offshore low permeability wells. Secondly, according to the drilling situation and post-fracturing release spraying requirements, an integrated process of in-casing packer-stratified slip-on multi-stage injection fracturing and post-fracturing release spraying was formed. Finally, on-site implementation was carried out according to the operating platform situation of the well, offshore production safety and environmental protection, and sea conditions during operation. It successfully achieved the first large-scale segmental fracturing construction in Bohai Bay offshore, and the post-release spraying sought production with the obvious effect of increasing production. Although the process has shortcomings, it still provides new ideas and exploration for the development of offshore low-permeability reservoir.

Published in	International Journal of Economy, Energy and Environment (Volume 8, Issue 4)
DOI	10.11648/j.ijeee.20230804.14
Page(s)	99-103
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), 2023. Published by Science Publishing Group

Keywords

Horizontal Well Fracturing, Production Enhancement Measures, Fracturing Technology, Low Permeability Reservoirs

References

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[3]	Du Xianfei, Bai Xiaohu, Qi Yin, et al. Study on the optimal design of fracture in horizontal wells of Huaqing Chang6 well in Changqing oilfield [J]. Oil and Gas Well Testing, 2014, 23 (5): 40-42.
[4]	Wei Zichao, Qi Dansheng, Sun Zhaoxu, et al. Application of volumetric fracturing technology in low-hole tight reservoirs [J]. Oil and Gas Well Testing, 2013, 22 (4): 50-52.
[5]	Zeng Xianglin, Lin Dan, Sun Fujie. Development characteristics and technical countermeasures of offshore low permeability oilfield [J]. Special Oil and Gas Reservoir, 2011, 18 (2): 66-68.
[6]	Wang Wendong, Zhao Guangyuan, Su Yuliang et al. Application of Network Fracturing Technology to Tight Oil Reservoirs [J]. Xingjiang Petroleum Geology, 2013, 34 (3): 345-348.
[7]	Chen Jianjun, Weng Dingwei. CNPC’s progress in horizontal well fracturing technologies for unconventional reservoirs [J]. Natural Gas Industry, 2017, 31 (9): 79-84.
[8]	Sun Lin, Song Aili, Yi Fei, et al. Analysis of the adaptability of burst acidizing technology in low-permeability reservoirs offshore China [J]. Drilling and Production Process, 2016, 39 (1): 60-62.
[9]	Li Yunzhe, Ren Ze, Wang Yonggang. Application and analysis of mini frac test in offshore exploratory well [J]. Well, Testing, 2017, 26 (5): 53-59.
[10]	Ouyang Weiping. Comprehensive analysis method for transient pressure and production of multistage fractured horizontal well in tight gas reservoirs [J]. Well Testing, 2018, 27 (1): 14-21.
[11]	Liu Peng, Xu Jie, Xu Gang et al. Pilot test of horizontal well staged fracturing for low permeability reservoirs in BZ25-1 oilfield [J]. Well Testing, 2018, 27 (3): 52-57.
[12]	Zhang Chunhui. Application of coiled tubing frac technique using double-sealing and single-stick [J]. Oil Field Equipment, 2014, 43 (5): 60-63.
[13]	Yin Guiqin, Chen Baochun, Li Chuan et al. Horizontal well single-trip multistage sand jet fracturing technology [J]. China Petroleum Machinery, 2014, 42 (7): 73-76.
[14]	Li Xiaogang, Yi Liangping, Yang Zhaozhong et al. Analysis of influence factors on secondary fracture length of deflagration fracturing in hydraulic fractures [J]. Reservoir Evaluation and Development, 2017, 7 (1): 55-60.
[15]	Tang Yong, Wang Guoyong, Li Zhilong et al. Practice and understanding of multiple crack volume fracturing in open hole horizontal well section of Zone Su53 [J]. Oil Drilling & Production Technology, 2013, 35 (1): 63-67.
[16]	Xu Wenjiang, Xiao Maolin, Sun Xingwang et al. Pilot test of multi-stage fracturing technology for horizontal wells in offshore low permeability reservoirs [J]. China Offshore Oil and Gas, 2017, 29 (6): 108-11.

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APA Style

Du Weigang, Gu Bing, Ji Peng, Hao Dawei, Liu Yong. (2023). Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs. International Journal of Economy, Energy and Environment, 8(4), 99-103. https://doi.org/10.11648/j.ijeee.20230804.14

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ACS Style

Du Weigang; Gu Bing; Ji Peng; Hao Dawei; Liu Yong. Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs. Int. J. Econ. Energy Environ. 2023, 8(4), 99-103. doi: 10.11648/j.ijeee.20230804.14

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AMA Style

Du Weigang, Gu Bing, Ji Peng, Hao Dawei, Liu Yong. Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs. Int J Econ Energy Environ. 2023;8(4):99-103. doi: 10.11648/j.ijeee.20230804.14

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@article{10.11648/j.ijeee.20230804.14,
  author = {Du Weigang and Gu Bing and Ji Peng and Hao Dawei and Liu Yong},
  title = {Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs},
  journal = {International Journal of Economy, Energy and Environment},
  volume = {8},
  number = {4},
  pages = {99-103},
  doi = {10.11648/j.ijeee.20230804.14},
  url = {https://doi.org/10.11648/j.ijeee.20230804.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijeee.20230804.14},
  abstract = {Offshore oil and gas fields are slow to develop offshore low permeability reservoirs due to the high pre-development costs and post maintenance costs due to the development environment and technical inputs. Due to the low yield of low permeability reservoirs, resulting in some oil and gas wells producing even less than the development cost yield, it is difficult to achieve commercial exploitation of low permeability oil and gas wells without effective reservoir modification to increase production. However, it is difficult to implement large fracturing modifications on land, as usual, to achieve increased production from oil and gas wells due to the small space for offshore operations, the high influence of sea conditions, and high environmental requirements. To realize the development of offshore low-permeability reservoirs, two low-permeability oil wells were selected as test wells to explore the development path of offshore low-permeability reservoirs. Firstly, by analyzing the volumetric fracturing process in onshore oil fields and the main difficulties of offshore construction, the packer + differential pressure slip segmental fracturing technology was optimized and selected as the fracturing solution for offshore low permeability wells. Secondly, according to the drilling situation and post-fracturing release spraying requirements, an integrated process of in-casing packer-stratified slip-on multi-stage injection fracturing and post-fracturing release spraying was formed. Finally, on-site implementation was carried out according to the operating platform situation of the well, offshore production safety and environmental protection, and sea conditions during operation. It successfully achieved the first large-scale segmental fracturing construction in Bohai Bay offshore, and the post-release spraying sought production with the obvious effect of increasing production. Although the process has shortcomings, it still provides new ideas and exploration for the development of offshore low-permeability reservoir.},
 year = {2023}
}

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TY  - JOUR
T1  - Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs
AU  - Du Weigang
AU  - Gu Bing
AU  - Ji Peng
AU  - Hao Dawei
AU  - Liu Yong
Y1  - 2023/08/05
PY  - 2023
N1  - https://doi.org/10.11648/j.ijeee.20230804.14
DO  - 10.11648/j.ijeee.20230804.14
T2  - International Journal of Economy, Energy and Environment
JF  - International Journal of Economy, Energy and Environment
JO  - International Journal of Economy, Energy and Environment
SP  - 99
EP  - 103
PB  - Science Publishing Group
SN  - 2575-5021
UR  - https://doi.org/10.11648/j.ijeee.20230804.14
AB  - Offshore oil and gas fields are slow to develop offshore low permeability reservoirs due to the high pre-development costs and post maintenance costs due to the development environment and technical inputs. Due to the low yield of low permeability reservoirs, resulting in some oil and gas wells producing even less than the development cost yield, it is difficult to achieve commercial exploitation of low permeability oil and gas wells without effective reservoir modification to increase production. However, it is difficult to implement large fracturing modifications on land, as usual, to achieve increased production from oil and gas wells due to the small space for offshore operations, the high influence of sea conditions, and high environmental requirements. To realize the development of offshore low-permeability reservoirs, two low-permeability oil wells were selected as test wells to explore the development path of offshore low-permeability reservoirs. Firstly, by analyzing the volumetric fracturing process in onshore oil fields and the main difficulties of offshore construction, the packer + differential pressure slip segmental fracturing technology was optimized and selected as the fracturing solution for offshore low permeability wells. Secondly, according to the drilling situation and post-fracturing release spraying requirements, an integrated process of in-casing packer-stratified slip-on multi-stage injection fracturing and post-fracturing release spraying was formed. Finally, on-site implementation was carried out according to the operating platform situation of the well, offshore production safety and environmental protection, and sea conditions during operation. It successfully achieved the first large-scale segmental fracturing construction in Bohai Bay offshore, and the post-release spraying sought production with the obvious effect of increasing production. Although the process has shortcomings, it still provides new ideas and exploration for the development of offshore low-permeability reservoir.
VL  - 8
IS  - 4
ER  -

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Author Information

Du Weigang

CNPC Offshore Engineering Company Limited Tianjin Branch, Tianjin, China
Gu Bing

CNPC Offshore Engineering Company Limited Tianjin Branch, Tianjin, China
Ji Peng

CNPC Offshore Engineering Company Limited Tianjin Branch, Tianjin, China
Hao Dawei

CNPC Offshore Engineering Company Limited Tianjin Branch, Tianjin, China
Liu Yong

CNPC Offshore Engineering Company Limited Tianjin Branch, Tianjin, China

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Plain Text BibTeX RIS

APA Style

Du Weigang, Gu Bing, Ji Peng, Hao Dawei, Liu Yong. (2023). Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs. International Journal of Economy, Energy and Environment, 8(4), 99-103. https://doi.org/10.11648/j.ijeee.20230804.14

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ACS Style

Du Weigang; Gu Bing; Ji Peng; Hao Dawei; Liu Yong. Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs. Int. J. Econ. Energy Environ. 2023, 8(4), 99-103. doi: 10.11648/j.ijeee.20230804.14

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AMA Style

Du Weigang, Gu Bing, Ji Peng, Hao Dawei, Liu Yong. Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs. Int J Econ Energy Environ. 2023;8(4):99-103. doi: 10.11648/j.ijeee.20230804.14

Copy | Download

@article{10.11648/j.ijeee.20230804.14,
  author = {Du Weigang and Gu Bing and Ji Peng and Hao Dawei and Liu Yong},
  title = {Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs},
  journal = {International Journal of Economy, Energy and Environment},
  volume = {8},
  number = {4},
  pages = {99-103},
  doi = {10.11648/j.ijeee.20230804.14},
  url = {https://doi.org/10.11648/j.ijeee.20230804.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijeee.20230804.14},
  abstract = {Offshore oil and gas fields are slow to develop offshore low permeability reservoirs due to the high pre-development costs and post maintenance costs due to the development environment and technical inputs. Due to the low yield of low permeability reservoirs, resulting in some oil and gas wells producing even less than the development cost yield, it is difficult to achieve commercial exploitation of low permeability oil and gas wells without effective reservoir modification to increase production. However, it is difficult to implement large fracturing modifications on land, as usual, to achieve increased production from oil and gas wells due to the small space for offshore operations, the high influence of sea conditions, and high environmental requirements. To realize the development of offshore low-permeability reservoirs, two low-permeability oil wells were selected as test wells to explore the development path of offshore low-permeability reservoirs. Firstly, by analyzing the volumetric fracturing process in onshore oil fields and the main difficulties of offshore construction, the packer + differential pressure slip segmental fracturing technology was optimized and selected as the fracturing solution for offshore low permeability wells. Secondly, according to the drilling situation and post-fracturing release spraying requirements, an integrated process of in-casing packer-stratified slip-on multi-stage injection fracturing and post-fracturing release spraying was formed. Finally, on-site implementation was carried out according to the operating platform situation of the well, offshore production safety and environmental protection, and sea conditions during operation. It successfully achieved the first large-scale segmental fracturing construction in Bohai Bay offshore, and the post-release spraying sought production with the obvious effect of increasing production. Although the process has shortcomings, it still provides new ideas and exploration for the development of offshore low-permeability reservoir.},
 year = {2023}
}

Copy | Download

TY  - JOUR
T1  - Research and Application of Production Enhancement Technology for Offshore Low Permeability Reservoirs
AU  - Du Weigang
AU  - Gu Bing
AU  - Ji Peng
AU  - Hao Dawei
AU  - Liu Yong
Y1  - 2023/08/05
PY  - 2023
N1  - https://doi.org/10.11648/j.ijeee.20230804.14
DO  - 10.11648/j.ijeee.20230804.14
T2  - International Journal of Economy, Energy and Environment
JF  - International Journal of Economy, Energy and Environment
JO  - International Journal of Economy, Energy and Environment
SP  - 99
EP  - 103
PB  - Science Publishing Group
SN  - 2575-5021
UR  - https://doi.org/10.11648/j.ijeee.20230804.14
AB  - Offshore oil and gas fields are slow to develop offshore low permeability reservoirs due to the high pre-development costs and post maintenance costs due to the development environment and technical inputs. Due to the low yield of low permeability reservoirs, resulting in some oil and gas wells producing even less than the development cost yield, it is difficult to achieve commercial exploitation of low permeability oil and gas wells without effective reservoir modification to increase production. However, it is difficult to implement large fracturing modifications on land, as usual, to achieve increased production from oil and gas wells due to the small space for offshore operations, the high influence of sea conditions, and high environmental requirements. To realize the development of offshore low-permeability reservoirs, two low-permeability oil wells were selected as test wells to explore the development path of offshore low-permeability reservoirs. Firstly, by analyzing the volumetric fracturing process in onshore oil fields and the main difficulties of offshore construction, the packer + differential pressure slip segmental fracturing technology was optimized and selected as the fracturing solution for offshore low permeability wells. Secondly, according to the drilling situation and post-fracturing release spraying requirements, an integrated process of in-casing packer-stratified slip-on multi-stage injection fracturing and post-fracturing release spraying was formed. Finally, on-site implementation was carried out according to the operating platform situation of the well, offshore production safety and environmental protection, and sea conditions during operation. It successfully achieved the first large-scale segmental fracturing construction in Bohai Bay offshore, and the post-release spraying sought production with the obvious effect of increasing production. Although the process has shortcomings, it still provides new ideas and exploration for the development of offshore low-permeability reservoir.
VL  - 8
IS  - 4
ER  -

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