Special Oil & Gas Reservoirs >

2024 , Vol. 31 >Issue 1: 74 - 80

DOI: https://doi.org/10.3969/j.issn.1006-6535.2024.01.009

Reservoir Engineering

Mechanism and Parameter Optimization of Thermal Solvent-Assisted Gravity Drainage Oil Recovery in Heavy Oil Reservoirs

  • Li Songyan ,
  • Cheng Hao ,
  • Han Rui ,
  • Wei Yaohui ,
  • Li Minghe ,
  • Feng Shibo
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  • 1. Key Laboratory of Unconventional Oil and Gas Development, China University of Petroleum (East China), Qingdao, Shandong 266580, China;
    2. China University of Petroleum (East China), Qingdao, Shandong 266580,China;
    3. China Oilfield Services Limited, Tianjin 300459, China

Received date: 2023-04-25

  Revised date: 2023-12-25

  Online published: 2024-04-18

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Abstract

There are significant heat loss, high water cut, and poor development effects during the recovery process of heavy oil reservoirs. Taking the Mackay River Reservoir in Canada as the research object, the numerical simulation model of hot solvent-assisted gravity drainage technology was constructed, and characteristics of SAGD, VAPEX, and hot solvent-assisted gravity drainage recovery were compared. The parameters are optimized for production pressures, injection rates, and injection temperatures of hot solvents. The results show that the hot solvent-assisted gravity drainage technology is better than SAGD and VAPEX in terms of injection and production differential pressure, oil recovery, and oil recovery rate; in the actual development process, the optimal conditions for the application of hot solvent-assisted gravity drainage technology are as follows: the bottomhole production pressure is 700 kPa, the injection rate is 160 m3/d, and the injection temperature is 275 ℃. The results of the three-dimensional experiments further validate the results of the numerical simulation calculations. This study provides a reference for efficiently developing shallow heavy oil reservoirs.

Key words： heavy oil recovery; gravity drainage; parameter optimization; numerical simulation; enhanced oil recovery

Cite this article

Li Songyan , Cheng Hao , Han Rui , Wei Yaohui , Li Minghe , Feng Shibo . Mechanism and Parameter Optimization of Thermal Solvent-Assisted Gravity Drainage Oil Recovery in Heavy Oil Reservoirs[J]. Special Oil & Gas Reservoirs, 2024 , 31(1) : 74 -80 . DOI: 10.3969/j.issn.1006-6535.2024.01.009

References

[1]赵修太,付敏杰,王增宝,等.稠油热采调堵体系研究进展综述[J].特种油气藏,2013, 20(4):1-4,151.
ZHAO Xiutai,FU Minjie,WANG Zengbao,et al.Research overview of profile control and water shut-off agents for heavy oil thermal recovery[J].Special Oil & Gas Reservoirs,2013,20(4):1-4,151.
[2]蒋琪,游红娟,潘竟军,等.稠油开采技术现状与发展方向初步探讨[J].特种油气藏,2020, 27(6):30-39.
JIANG Qi,YOU Hongjuan,PAN Jingjun,et al.Preliminary discussion on current status and development direction of heavy oil recovery technologies[J].Special Oil & Gas Reservoirs,2020,27(6):30-39.
[3]BUTLER R M, STEPHENS D J.The gravity drainage of steam-heated heavy oil to parallel horizontal wells[J].Journal of Canadian Petroleum Technology, 1981, 20(2): 90-96.
[4]BUTLER R M, MOKRYS I J.A new process (VAPEX) for recovering heavy oils using hot water and hydrocarbon vapour[J].Journal of Canadian Petroleum Technology, 1991, 30(1): 97-106.
[5]BUTLER R M,MOKRYS I J,DAS S K.The solvent requirements for VAPEX recovery[C].SPE30293-MS,1995:465-474.
[6]赵法军,文子祥,阚唱轩,等. VAPEX技术中溶剂气体扩散系数研究现状与分析[J].辽宁石油化工大学学报,2015,35(4):11-17.
ZHAO Fajun,WEN Zixiang,HAN Changxuan,et al.Research status and analysis of solvent gas diffusion coefficient in VAPEX Technology[J].Journal of Liaoning Petroleum University, 2015,35(4):11-17.
[7]JIANG Q, BUTLER R M.Experimental studies on effects of reservoir heterogeneity on VAPEX process[J].Journal of Canadian Petroleum Technology, 1996, 35(10):46-54.
[8]DAS S K, BUTLER R M.Mechanism of the vapor extraction process for heavy oil and bitumen[J].Journal of Petroleum Science and Engineering, 1998, 21(1/2):43-59.
[9]LI Songyan,HAN Rui,WANG Peng,et al.Experimental investigation of innovative superheated vapor extraction technique in heavy oil reservoirs: a two-dimensional visual analysis[J].Energy, 2022, 238: 121882.
[10] MOHAMMADPOOR M, TORABI F.Comprehensive experimental study and numerical simulation of vapour extraction (VAPEX) process in heavy oil systems[J].The Canadian Journal of Chemical Engineering, 2015, 93(11): 1929-1940.
[11] KOK M V, YILDIRIM Y, AKIN S.Application of vapor extraction (VAPEX) process on carbonate reservoirs[J].Energy Sources,Part A:Recovery,Utilization,and Environmental Effects, 2009, 31(5): 377-386.
[12] CUI G, LIU T, XIE J, et al. A review of SAGD technology development and its possible application potential on thin-layer super-heavy oil reservoirs[J].Geoscience Frontiers, 2022, 13(4): 101382.
[13] REZAEI N,MOHAMMADZADEH O,CHATZIS I.Warm VAPEX: a thermally improved vapor extraction process for recovery of heavy oil and bitumen[J].Energy & Fuels, 2010, 24: 5934-5946.
[14] KAR T, OVALLES C, ROGEL E, et al.The residual oil saturation determination for steam assisted gravity drainage (SAGD) and solvent-SAGD[J].Fuel, 2016, 172:187-195.
[15] 葛明曦.边顶水超稠油油藏SAGD蒸汽腔描述及调控对策[J].特种油气藏,2021,28(4):136-141.
GE Mingxi.Description and control strategy of SAGD steam chamber of extra-heavy oil reservoir with edge-top water[J].Special Oil & Gas Reservoirs,2021,28(4):136-141.
[16] 李兆敏,赵心茹,班晓春,等. 水平井蒸汽吞吐注汽筛管位置调整时机优化研究[J].特种油气藏,2021,28(5):93-99.
LI Zhaomin,ZHAO Xinru,BAN Xiaochun,et al.Study on optimization of position adjustment occasion of steam injection screen pipe for steam stimulation in horizontal wells[J].Special Oil & Gas Reservoirs,2021,28(5):93-99.
[17] 王宏远,杨立强.辽河油田蒸汽辅助重力泄油开发实践[J].特种油气藏,2020,27(6):20-29.
WANG Hongyuan,YANG Liqiang.The practice of steam assisted gravity drainage in Liaohe Oilfield[J].Special Oil & Gas Reservoirs,2020,27(6):20-29.
[18] 王连刚.溶剂辅助蒸汽重力泄油室内实验研究[J].特种油气藏,2018,25(5):151-155.
WANG Lian′gang.Laboratory experiment research of solvent-assisted SAGD[J].Special Oil & Gas Reservoirs,2018,25(5):151-155.
[19] YAZDANI A, MAINI B B.Modeling of the VAPEX process in a very large physical model[J].Energy & Fuels, 2008, 22(1): 535-544.
[20] CHEPRLI A,TORABI F,SABETIM,et al.An exponential solvent chamber geometry for modeling the VAPEX process[J].Energies, 2022, 15(16):5874.
[21] 杨浩哲,杨果,周晓义,等.SAGD中后期多介质强化提高开发效果技术[J].油气地质与采收率,2023,30(4):123-129.
YANG Haozhe,YANG Guo,ZHOU Xiaoyi,et al.Technology of multi-media enhancement to improve development effects in middle and later stages of SAGD[J].Petroleum Geology and Recovery Efficiency,2023,30(4):123-129.
[22] 姚秀田,徐宏光,张仲平,等.稠油油藏多轮次吞吐阻流环的分布特征及突破开采技术[J].大庆石油地质与开发,2023,42(6):67-74.
YAO Xiutian,XU Hongguang,ZHANG Zhongping,et al.Distribution characteristics and breakthrough production technology of flow-restricted ring in multi-rounds huff-and-puff heavy oil reservoir[J].Petroleum Geology & Oilfield Development in Daqing,2023,42(6):67-74.
[23] 吕世瑶,李永会,李海波,等.稠油油藏水平井超临界注水井井筒物性参数预测模型[J].大庆石油地质与开发,2021,40(4):54-62.
LYU Shiyao,LI Yonghui,LI Haibo,et al.Predicting model of physical property parameter of super-critical water injection wellbore in horizontal well of heavy oil reservoirs[J]. Petroleum Geology & Oilfield Development in Daqing,2021,40(4):54-62.
[24] 姚秀田,苏鑫坤,郑昕,等.特高含水期油藏井网调整开发效果三维物理模拟实验研究[J].油气地质与采收率,2023,30(1):139-145.
YAO Xiutian,SU Xinkun,ZHENG Xin,et al. 3D physical simulation experiments of development effects after well pattern adjustment in extra-high water cut reservoirs[J].Petroleum Geology and Recovery Efficiency,2023,30(1):139-145.
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