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Improved Water Injection Index Curve on Estimation of Oil in Place for Fractured Vuggy Carbonate Reservoirs

Received: 15 October 2020     Accepted: 26 October 2020     Published: 4 November 2020
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Abstract

Fractured vuggy carbonate reservoirs play an important role in the world crude oil resources. The significant reservoir heterogeneity represented by complex distribution of multi-scale fractures and vugs brings challenges to reservoir oil in place (OIP) estimation, which is a fundamental parameter in oil field development. OIP estimation based on production dynamic analysis is regularly carried out in oilfield practice, the result of which is normally adopted as a comparison to volumetric calculation from geological study for mutual verification. This paper introduces a widely used water injection index curve method on OIP estimation of fractured vuggy carbonate reservoir in Tarim oilfield, which is a straight forward plot of bottom-hole pressure versus cumulative water injection. An improved model taking into consideration the compressibility of second gas gap is presented and applied on real well from Tahe carbonate reservoir. The application of the new model demonstrated that conventional method tends to over-estimate the OIP, while the improved model gives a relatively reliable estimation. The improved water injection index curve in this paper is easy to be conducted based on well production and injection dynamic and shows advantages on convenient pressure conversion from well-head to well-bottom and avoiding dealing with the high uncertainty of aquifers in carbonate reservoir.

Published in International Journal of Oil, Gas and Coal Engineering (Volume 8, Issue 6)
DOI 10.11648/j.ogce.20200806.11
Page(s) 124-129
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), 2020. Published by Science Publishing Group

Keywords

Fractured Vuggy Carbonate Reservoir, Oil in Place, Water Injection Index Curve, Oil Compressibility

References
[1] Liu, X. L., Yang, J., Z. Y., and Wang Y (2006) A New Methodology on Reservoir Modelling in the Fracture-Cavity Carbonate Rock of Tah Oilfield. SPE 104429 pressented at International Oil & Gas Conference and Exhibition in China, 5-7 December.
[2] Yangfan Li, Tao Lin, Xinyong Li et al (2008) Oil Production and Water-Cut in Natrually-Fractured Vuggy Reservoirs, SPE 115042 prestented ath the 2008 SP Russian Oil & Gas Technical and Exhibition held in Moscow, Russia, 28-30 October.
[3] MATTAR, L., MCNEIL, R (1998) The “Flowing” Gas Material Balance, Journal of Canadian Petroleum Technology, 37 (2): 52-55.
[4] Ram G. Agarwal, David C. Gardner, Stanley W. Kleinsteiber, Del D. Fussell (1999) Analyzing Well Production Data Using Combined-Type-Curve and Decline-Curve Analysis Concepts. SPE Reservoir Eval. & Eng. 2 (5): 478-486.
[5] MATTAR, L., ANDERSON, D. (2005) Dynamic Material Balance, CIPC 2005-113, presented at Canadian International Petroleum Conference, Calgary, Alberta, June 7–9.
[6] Li Yong, Wang Qi, Li Baozhu, Liu Zhiliang (2017) Dynamic Characterization of Different Reservoir Types for a Fractured-Caved Carbonate Reservoir. SPE 188113 presented at the SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition held in Dammam, Saudi Arabia, 24-27 April.
[7] SONG Hongwei, ZHANG Zhi, REN Wenbo (2012) Reserves calculation of fractured-cavity carbonate reservoirs by material balance method. Natural Gas Exploration and Development, 35 (1): 32-35.
[8] CHEN Lixin, WANG Lianshan, GAO Chunhai, et al (2016) A new method to calculate dynamic reserves in fractured-vuggy reservoirs: a case from Halahatang oilfield, Tarim basin. Xinjiang Petroleum Geology, 37 (3): 356-359.
[9] WANG Ping, PAN Wenqing, LI Shiyin, et al (2017) Using well production performance to identify cave-cleft bodies in fractured-vuggy carbonate reservoirs: a case study of Ha-6 well block in Halahatang oilfield. Xinjiang Petroleum Geology, 38 (3): 363-368.
[10] LI Yong, YU Qingyan, LI Baozhu et al (2017) Quantitative evaluation method of OOIP and aquifer size for fractured-caved carbonate reservoirs with active aquifer support. Scientia Sinica Technologica, 47 (7): 708-717.
[11] ZHENG Songqing, CUI Shuyue, MU Lei (2018) Material balance equation and driving energy analysis of fracture-cave oil reservoir, Special Oil and Gas Reservoirs, 25 (1): 64-67.
[12] Jin Yonghong, Li Anguo1, Jie Hui, Tian Jing and Hu Lijuan (2013) Application of waterflood index curve in carbonate reservoirs, RESERVOIR EVALUATION AND DEVELOPMENT, 3 (4): 30-34.
[13] Mei Shengwen, Chen Xiaofan, Yue Ping, Tang Chao, Yi Hu (2015) An Improved New Model of Water Injection Index Curve Theory for Fractured and Caved Carbonate Reservoir. Journal of Yangtze University (Natural Science Edition), 12 (29): 57-62.
[14] YANG Meihua, ZHONG Haiquan, LI Yingchuan (2020) New production index curve of fractured-vuggy carbonate reservoirs [J/OL], LITHOLOGIC RESERVOIRS, https://kns.cnki.net/kcms/detail/62.1195.TE.20200728.0936.004.html.
[15] LI Hongboa, WANG Cuilib, NIU Gea, LIANG Hongtaoa, BU Lulua, GU Junyinga (2020) Dynamic Reserves Evaluation of Fractured-Cavity Reservoirs With Closed Water: A Case From Halahatang Oilfield, Tarim Basin, XINJIANG PETROLEUM GEOLOGY, 41 (3): 321-325.
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Cite This Article
  • APA Style

    Fan Haijun, Kang Zhijiang, Zheng Songqing, Zhu Guiliang. (2020). Improved Water Injection Index Curve on Estimation of Oil in Place for Fractured Vuggy Carbonate Reservoirs. International Journal of Oil, Gas and Coal Engineering, 8(6), 124-129. https://doi.org/10.11648/j.ogce.20200806.11

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    ACS Style

    Fan Haijun; Kang Zhijiang; Zheng Songqing; Zhu Guiliang. Improved Water Injection Index Curve on Estimation of Oil in Place for Fractured Vuggy Carbonate Reservoirs. Int. J. Oil Gas Coal Eng. 2020, 8(6), 124-129. doi: 10.11648/j.ogce.20200806.11

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    AMA Style

    Fan Haijun, Kang Zhijiang, Zheng Songqing, Zhu Guiliang. Improved Water Injection Index Curve on Estimation of Oil in Place for Fractured Vuggy Carbonate Reservoirs. Int J Oil Gas Coal Eng. 2020;8(6):124-129. doi: 10.11648/j.ogce.20200806.11

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  • @article{10.11648/j.ogce.20200806.11,
      author = {Fan Haijun and Kang Zhijiang and Zheng Songqing and Zhu Guiliang},
      title = {Improved Water Injection Index Curve on Estimation of Oil in Place for Fractured Vuggy Carbonate Reservoirs},
      journal = {International Journal of Oil, Gas and Coal Engineering},
      volume = {8},
      number = {6},
      pages = {124-129},
      doi = {10.11648/j.ogce.20200806.11},
      url = {https://doi.org/10.11648/j.ogce.20200806.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20200806.11},
      abstract = {Fractured vuggy carbonate reservoirs play an important role in the world crude oil resources. The significant reservoir heterogeneity represented by complex distribution of multi-scale fractures and vugs brings challenges to reservoir oil in place (OIP) estimation, which is a fundamental parameter in oil field development. OIP estimation based on production dynamic analysis is regularly carried out in oilfield practice, the result of which is normally adopted as a comparison to volumetric calculation from geological study for mutual verification. This paper introduces a widely used water injection index curve method on OIP estimation of fractured vuggy carbonate reservoir in Tarim oilfield, which is a straight forward plot of bottom-hole pressure versus cumulative water injection. An improved model taking into consideration the compressibility of second gas gap is presented and applied on real well from Tahe carbonate reservoir. The application of the new model demonstrated that conventional method tends to over-estimate the OIP, while the improved model gives a relatively reliable estimation. The improved water injection index curve in this paper is easy to be conducted based on well production and injection dynamic and shows advantages on convenient pressure conversion from well-head to well-bottom and avoiding dealing with the high uncertainty of aquifers in carbonate reservoir.},
     year = {2020}
    }
    

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  • TY  - JOUR
    T1  - Improved Water Injection Index Curve on Estimation of Oil in Place for Fractured Vuggy Carbonate Reservoirs
    AU  - Fan Haijun
    AU  - Kang Zhijiang
    AU  - Zheng Songqing
    AU  - Zhu Guiliang
    Y1  - 2020/11/04
    PY  - 2020
    N1  - https://doi.org/10.11648/j.ogce.20200806.11
    DO  - 10.11648/j.ogce.20200806.11
    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  - 124
    EP  - 129
    PB  - Science Publishing Group
    SN  - 2376-7677
    UR  - https://doi.org/10.11648/j.ogce.20200806.11
    AB  - Fractured vuggy carbonate reservoirs play an important role in the world crude oil resources. The significant reservoir heterogeneity represented by complex distribution of multi-scale fractures and vugs brings challenges to reservoir oil in place (OIP) estimation, which is a fundamental parameter in oil field development. OIP estimation based on production dynamic analysis is regularly carried out in oilfield practice, the result of which is normally adopted as a comparison to volumetric calculation from geological study for mutual verification. This paper introduces a widely used water injection index curve method on OIP estimation of fractured vuggy carbonate reservoir in Tarim oilfield, which is a straight forward plot of bottom-hole pressure versus cumulative water injection. An improved model taking into consideration the compressibility of second gas gap is presented and applied on real well from Tahe carbonate reservoir. The application of the new model demonstrated that conventional method tends to over-estimate the OIP, while the improved model gives a relatively reliable estimation. The improved water injection index curve in this paper is easy to be conducted based on well production and injection dynamic and shows advantages on convenient pressure conversion from well-head to well-bottom and avoiding dealing with the high uncertainty of aquifers in carbonate reservoir.
    VL  - 8
    IS  - 6
    ER  - 

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Author Information
  • School of Petroleum Engineering, China University of Petroleum, Qingdao, China

  • Petroleum Exploration & Production Research Institute, SINOPEC, Beijing, China

  • Petroleum Exploration & Production Research Institute, SINOPEC, Beijing, China

  • Petroleum Exploration & Production Research Institute, SINOPEC, Beijing, China

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