Development Effect Analysis of Tight Gas Reservoir Considering Differential Relative Permeability

doi:10.11885/j.issn.1674-5086.2022.02.16.02

Abstract

Abstract: Fracturing is an important measure to increase production of low-permeability tight gas reservoir, and gas reservoir development performance prediction considering geological engineering integration is a hot issue in tight gas reservoir development. Large scale hydraulic fracturing will also lead to the difference of phase permeability between the reformed area and the unmodified area, and different reservoir types also correspond to different phase permeability relationships. Therefore, the integrated simulation of tight gas reservoir based differential on dissimilatory relative permeability is of great significance. This paper starts with the engineering geological integrated modeling process, introduces the differential relative permeability embedding method, and combines the three types of reservoir geology and relative permeability relationship to form a simulation process considering differential relative permeability. This simulation method can effectively solve the problem of poor fitting effect of water production in the early flowback stage. Through the simulation considering differential relative permeability, the development characteristics and development effects of three types of low-permeability tight gas reservoirs are analyzed, and the chart between dimensionless pressure drop and recovery degree is established to evaluate the development effects of gas reservoirs in different periods. The simulation results show that the residual gas saturation determines the lag time of gas production. The lower the residual gas saturation is, the longer the flowback period of the gas well is. Through the research of this paper, the influence law of different reservoir physical properties on development effect is revealed, which has important theoretical and practical significance for guiding the efficient development of tight gas reservoir.

Key words: tight gas reservoir, differential relative permeability, integrated simulation, development dynamic prediction

CLC Number:

TE348

WANG Yongfei, FANG Quantang. Development Effect Analysis of Tight Gas Reservoir Considering Differential Relative Permeability[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(3): 121-130.

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References

[1] 吴奇,梁兴,鲜成钢,等. 地质-工程一体化高效开发中国南方海相页岩气[J]. 中国石油勘探,2015,20(4):1-23. doi:10.3969/j.issn.1672-7703.2015.04.001 WU Qi, LIANG Xing, XIAN Chenggang, et al. Geoscienceto-production integration ensures effective and efficient South China marine shale gas development[J]. China Petroleum Exploration, 2015, 20(4):1-23. doi:10.3969/j.issn.1672-7703.2015.04.001
[2] 胡文瑞. 地质工程一体化是实现复杂油气藏效益勘探开发的必由之路[J]. 中国石油勘探,2017,22(1):1-5. doi:10.3969/j.issn.1672-7703.2017.01.001 HU Wenrui. Geology-engineering integration——A necessary way to realize profitable exploration and development of complex reservoirs[J]. China Petroleum Exploration, 2017, 22(1):1-5. doi:10.3969/j.issn.1672-7703.2017.01.001
[3] 谢军,张浩淼,佘朝毅,等. 地质工程一体化在长宁国家级页岩气示范区中的实践[J]. 中国石油勘探,2017,22(1):21-28. doi:10.3969/j.issn.1672-7703.2017.01.004 XIE Jun, ZHANG Haomiao, SHE Chaoyi, et al. Practice of geology-engineering integration in Changning state shale gas demonstration area[J]. China Petroleum Exploration, 2017, 22(1):21-28. doi:10.3969/j.issn.1672-7703.2017.01.004
[4] 何佑伟,程时清,胡利民,等. 多段压裂水平井不均匀产油试井模型[J]. 中国石油大学学报(自然科学版),2017,41(4):116-123. doi:10.3969/j.issn.1673-5005.2017.04.015 HE Youwei, CHENG Shiqing, HU Limin, et al. A pressure transient analysis model of multi-fractured horizontal well in consideration of unequal production of each fracture[J]. Journal of China University of Petroleum(Edition of Natural Science), 2017, 41(4):116-123. doi:10.3969/j.issn.1673-5005.2017.04.015
[5] 方全堂,李政澜,段永刚,等. 考虑次生裂缝的页岩气藏有限导流缝网模型[J]. 西南石油大学学报(自然科学版),2019,41(6):139-145. doi:10.11885/j.issn.1674-5086.2019.09.17.06 FANG Quantang, LI Zhenglan, DUAN Yonggang, et al. The finite-conductivity fracture networks model in shale gas reservoirs with consideration of induced fractures[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2019, 41(6):139-145. doi:10.11885/j.issn.1674-5086.2019.09.17.06
[6] 魏明强,段永刚,方全堂,等. 基于物质平衡修正的页岩气藏压裂水平井产量递减分析方法[J]. 石油学报,2016,37(4):508-515. doi:10.7623/syxb201604010 WEI Mingqiang, DUAN Yonggang, FANG Quantang, et al. Production decline analysis method of fractured horizontal well in shale gas reservoirs based on modifying material balance[J]. Acta Petrolei Sinica, 2016, 37(4):508-515. doi:10.7623/syxb201604010
[7] 吕心瑞. 基于控制体积方法的离散裂缝网络模型流动模拟研究[D]. 青岛:中国石油大学(华东),2010. L$\ddot{\rm U}$ Xinrui. Study on flow simulation of discrete fracture network model based on control volume method[D]. Qingdao:China University of Petroleum, 2010.
[8] 何佑伟,贺质越,汤勇,等. 基于机器学习的页岩气井产量评价与预测[J]. 石油钻采工艺,2021,43(4):518-524. doi:10.13639/j.odpt.2021.04.016 HE Youwei, HE Zhiyue, TANG Yong, et al. Shale gas well production evaluation and prediction based on machine learning[J]. Oil Drilling & Production Technology, 2021, 43(4):518-524. doi:10.13639/j.odpt.2021.04.016
[9] 李宁. 裂缝性油藏油水相渗曲线实验研究[D]. 成都:西南石油大学,2015. LI Ning. Experimental study on oil-water relative permeability curve of fractured reservoir[D]. Chengdu:Southwest Petroleum University, 2015.
[10] 李威,李伟,闫正和,等. 考虑相渗时变的数值模拟历史拟合方法及应用[J]. 天然气与石油,2021,39(1):67-73. doi:10.3969/j.issn.1006-5539.2021.01.011 LI Wei, LI Wei, YAN Zhenghe, et al. Numerical simulation historical matching method and its application considering the relative permeability time-dependent[J]. Oil& Gas Exploration and Development, 2021, 39(1):67-73. doi:10.3969/j.issn.1006-5539.2021.01.011
[11] 王东琪,殷代印,周亚洲. 特低渗透微裂缝发育油藏综合相渗曲线计算方法[J]. 油气藏评价与开发,2017,7(5):20-25. doi:10.3969/j.issn.2095-1426.2017.05.005 WANG Dongqi, YIN Daiyin, ZHOU Yazhou. Calculation method of comprehensive relative permeability curve for ultra-low permeability reservoir with fracture-developed[J]. Reservoir Evaluation and Development, 2017, 7(5):20-25. doi:10.3969/j.issn.2095-1426.2017.05.005
[12] 唐子春,王朝,张子珂,等. 非常规油气藏体积压裂数值模拟新进展[J]. 石油地质与工程,2017,31(3):108-113. doi:10.3969/j.issn.1673-8217.2017.03.029 TANG Zichun, WANG Chao, ZHANG Zike, et al. New progress on numerical simulation of volume fracturing in unconventional oil reservoirs[J]. Petroleum Geology and Engineering, 2017, 31(3):108-113. doi:10.3969/j.issn.1673-8217.2017.03.029
[13] 鲜成钢. 页岩气地质工程一体化建模及数值模拟:现状、挑战和机遇[J]. 石油科技论坛,2018,37(5):24-34. doi:10.3969/j.issn.1002-302x.2018.05.005 XUAN Chenggang. Shale gas geological engineering integrated modeling and numerical simulation:Present conditions, challenges and opportunities[J]. Petroleum Technology Forum, 2018, 37(5):24-34. doi:10.3969/j.issn.1002-302x.2018.05.005
[14] 魏赫鑫. 致密气储层相渗曲线形态及渗透率瓶颈区表征研究[D]. 北京:中国地质大学(北京),2021. WEI Hexin. Study on the morphology of tight gas reservoir gas-water relative permeability curve and the characterization of permeability jail[D]. Beijing:China University of Geosciences, 2021.
[15] KRESSE O, WENG X, WU R, et al. Numerical modeling of hdyraulic fractures interaction in complex naturally fractuted formations[J]. Rock Mechanics and Rock Engineering, 2013, 46(3):555-568. doi:10.1007/s00603-012-0359-2
[16] MAHSANAM M, CRAIG L C. A workflow for modeling and simulation of hydraulic fractures in unconventional gas reservoirs[C]. SPE 153022-MS, 2012. doi:10.2118/153022-MS
[17] SUAREZ R R, HERRING S, HANDWERGER D, et al. Integrated analysis of core geology, rock properties, well logs, and seismic data provides a well constrained geologic model of the Bossier/Haynesville system[C]. SPE 167204-MS, 2013. doi:10.2118/167204-MS
[18] SUAREZ R R, DAHL G V, BORGOS H G, et al. Seismic-based heterogeneous earth model improves mapping reservoir quality and completion quality in tight shales[C]. SPE 164544-MS, 2013. doi:10.2118/164544-MS
[19] BOMMER P, BAYNE M, MAYERHOFER M, et al. Re-designing from scratch and defending offset wells:Case study of a six-well Bakken zipper project, McKenzie County, ND[C]. SPE 184851-MS, 2017. doi:10.2118/184851-MS
[20] ALGARHY A, SOLIMAN M, HEINZE L, et al. Increasing hydrocarbon recovery from shale reservoirs through balloonedhydraulic fracturing[C]. URTEC 2687030, 2017. doi:10.15530/urtec-2017-2687030
[21] XU Tao, LINDSAY G, BAIHLY J, et al. Proposed refracturing methodology in the Haynesville shale[C]. SPE 187236-MS, 2017. doi:10.2118/187236-MS