Petroleum Reservoir Evaluation and Development >
2023 , Vol. 13 >Issue 6: 855 - 862
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2023.06.017
Effective injection-production well spacing in pressure-sensitive reservoir with low permeability
Received date: 2023-05-26
Online published: 2024-01-03
For designing effective injection and production well spacing in low permeability reservoirs, it's essential to consider the pressure-sensitive effects arising from various pressure changes during the operation of injection and production wells, along with the impact of changes in the start-up pressure gradient. This study builds upon the basic seepage laws of low-permeability reservoirs to establish a seepage equation that incorporates the effects of the starting pressure gradient and pressure sensitivity. Utilizing the stable successive substitution method, the study examines the pressure distribution and the mechanism of reserve production under typical injection-production patterns. Based on the different requirements of the daily output of oil wells in an actual oil fields, a method for solving the effective injection-production well spacing of low-permeability pressure sensitive reservoir is determined. The study shows that, using the pressure sensitivity of the injection and production well area as a benchmark, there is a notable difference in the calculated results for well spacing when compared with scenarios where pressure sensitivity is either not considered or only considered for the production well area. Specifically, these differences are +9.8 % and -20.6 % under the same conditions. Considering the production limit requirements, the effective injection-production well spacing is about 0.7 ~ 0.9 times of the limit injection-production well spacing under normal conditions, which can better guide the reasonable deployment of the development well pattern of low permeability pressure sensitive reservoirs.
Minfeng CHEN , Lifeng QIN , Kang ZHAO , Yiwen WANG . Effective injection-production well spacing in pressure-sensitive reservoir with low permeability[J]. Petroleum Reservoir Evaluation and Development, 2023 , 13(6) : 855 -862 . DOI: 10.13809/j.cnki.cn32-1825/te.2023.06.017
| [1] | 张建国, 杜殿发, 侯健, 等. 油气层渗流力学[M]. 东营: 中国石油大学出版社, 2010. |
| [1] | ZHANG Jianguo, DU Dianfa, HOU Jian, et al. Reservoir seepage mechanics[M]. Dongying: China University of Petroleum press, 2010. |
| [2] | 黄延章. 低渗透油层渗流机理[M]. 北京: 石油工业出版社, 1998. |
| [2] | HUANG Yanzhang. Fluid mechanics in low-permeability reservoir[M]. Beijing: Petroleum Industry Press, 1998. |
| [3] | 李道品. 低渗透砂岩油田开发[M]. 北京: 石油工业出版社, 1999. |
| [3] | LI Daopin. The development of the low permeability sandstone oilfield[M]. Beijing: Petroleum Industry Press, 1999. |
| [4] | 韩洪宝, 程林松. 特低渗油藏考虑启动压力梯度的物理模拟及数值模拟方法[J]. 石油大学学报(自然科学版), 2004, 28(6): 49-53. |
| [4] | HAN Hongbao, CHENG Linsong. Physical simulation and numerical simulation of ultra-low permeability reservoir in consideration of starting pressure gradient[J]. Journal of China University of Petroleum(Edition of Natural Science), 2004, 28(6): 49-53. |
| [5] | 阮敏, 王连刚. 低渗透油田开发与压敏效应[J]. 石油学报, 2002, 23(3): 73-76. |
| [5] | RUAN Min, WANG Liangang. Low permeability oilfield development and pressure sensitive effect[J]. Acta Petrolei Sinica, 2002, 23(3): 73-76. |
| [6] | 刘仁静, 刘慧卿, 张红玲, 等. 低渗透储层应力敏感性及其对石油开发的影响[J]. 岩石力学与工程学报, 2011, 30(增刊1): 2697-2702. |
| [6] | LIU Renjing, LIU Huiqing, ZHANG Hongling, et al. Study of stress sensitivity and its influence on oil development in low permeability reservoir[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(suppl. 1): 2697-2702. |
| [7] | 王熙华. 利用启动压力梯度计算低渗油藏最大注采井距[J]. 断块油气田, 2003, 10(6): 75-76. |
| [7] | WANG Xihua. Using start-up pressure gradient to calculate low-permeability reservoir’s biggest producer-injector spacing[J]. Fault-Block Oil & Gas Field, 2003, 10(6): 75-76. |
| [8] | 王文环. 特低渗透油藏驱替及开采特征的影响因素[J]. 油气地质与采收率, 2006, 13(6): 73-75. |
| [8] | WANG Wenhuan. Influencing factors of displacement and development characteristics in ultra-low permeability oil reservoirs[J]. Petroleum Geology and Recovery Efficiency, 2006, 13(6): 73-75. |
| [9] | 罗川. 储层渗透率应力敏感研究现状[J]. 断块油气田, 2019, 26(2): 187-191. |
| [9] | LUO Chuan. Research status of stress sensitivity of reservoir permeability[J]. Fault-Block Oil & Gas Field, 2019, 26(2): 187-191. |
| [10] | 陈民锋, 王兆琪, 张琪琛, 等. 启动压力影响下注采井间有效驱替规律[J]. 深圳大学学报理工版, 2017, 34(1): 91-97. |
| [10] | CHEN Minfeng, WANG Zhaoqi, ZHANG Qishen, et al. Effective displacement rules for interwell with threshold pressure[J]. Journal of Shenzhen University(Science and Engineering), 2017, 34(1): 91-97. |
| [11] | 王道富, 李忠兴, 赵继勇, 等. 低渗透油藏超前注水理论及其应用[J]. 石油学报, 2007, 28(6): 78-81. |
| [11] | WANG Daofu, LI Zhongxing, ZHAO Jiyong, et al. Advance water-flooding theory for low-permeability reservoirs and its application[J]. Acta Petrolei Sinica, 2007, 28(6): 78-81. |
| [12] | 陈民锋, 姜汉桥, 郑伟, 等. 低渗透压敏油藏极限注采井距研究[J]. 断块油气田, 2010, 17(5): 579-582. |
| [12] | CHEN Minfeng, JIANG Hanqiao, ZHENG Wei, et al. Determination of critical well spacing in low permeability and pressure-sensitive reservoir[J]. Fault-Block Oil & Gas Field, 2010, 17(5): 579-582. |
| [13] | 陈民锋, 赵晶, 张贤松, 等. 低渗透稠油油藏水平井极限动用范围[J]. 中国石油大学学报(自然科学版), 2014, 38(2): 103-108. |
| [13] | CHEN Minfeng, ZHAO Jing, ZHANG Xiansong, et al. Limit drainage radius of horizontal wells in low-permeability heavy oil reservoirs[J]. Journal of China University of Petroleum(Natural Science Edition), 2014, 38(2): 103-108. |
| [14] | 罗宪波, 李波, 刘英, 等. 存在启动压力梯度时储层动用半径的确定[J]. 中国海上油气, 2009, 21(4): 248-250. |
| [14] | LUO Xianbo, LI Bo, LIU Ying, et al. The determination of drainage radius for reservoirs with a start-up pressure gradient[J]. Chinese offshore oil and gas, 2009, 21(4): 248-250. |
| [15] | 朱维耀, 刘今子, 宋洪庆, 等. 低/特低渗透油藏非达西渗流有效动用计算方法[J]. 石油学报, 2010, 31(3): 452-457. |
| [15] | ZHU Weiyao, LIU Jinzi, SONG Hongqing, et al. Calculation of effective startup degree of non-Darcy flow in low or ultra-low permeability reservoirs[J]. Acta Petrolei Sinica, 2010, 31(3): 452-457. |
| [16] | 邓英尔, 刘慈群. 低渗油藏非线性渗流规律数学模型及其应用[J]. 石油学报, 2001, 22(4): 72-76. |
| [16] | DENG Ying'er, LIU Ciqun. Mathematical model of nonlinear flow law in low permeability porous media and its application[J]. Acta Petrolei Sinica, 2001, 22(4): 72-76. |
| [17] | 陈民锋, 王兆琪, 孙贺东, 等. 考虑应力敏感影响的改进Blasingame产量递减分析方法[J]. 石油科学通报, 2017, 2(1): 53-63. |
| [17] | CHEN Minfeng, WANG Zhaoqi, SUN Hedong, et al. Improved Blasingame production-decline analysis method considering stress sensitivity[J]. Petroleum Science Bulletin, 2017, 2(1): 53-63. |
| [18] | 陈民锋, 杨子由, 秦立峰, 等. 低渗透各向异性油藏菱形井网储量动用评价及设计优化[J]. 石油与天然气地质, 2021, 42(5): 1223-1233. |
| [18] | CHEN Minfeng, YANG Ziyou, QIN Lifeng, et al. Producing reserve estimation and design optimization of rhomboid well pattern in anisotropic reservoirs of low permeability[J]. Oil & Gas Geology, 2021, 42(5): 1223-1233. |
| [19] | 陈民锋, 秦立峰, 荣金曦, 等. 低渗透应力敏感储层衰竭开发产量递减规律研究[J]. 复杂油气藏, 2022, 15(3): 78-83. |
| [19] | CHEN Minfeng, QIN Lifeng, RONG Jinxi, et al. Production decline law of low permeability stress-sensitive reservoir during depletion development[J]. Complex Hydrocarbon Reservoirs, 2022, 15(3): 78-83. |
| [20] | 陈民锋, 杨子由, 杨金欣. 低渗透油藏井网整体加密调整技术界限[J]. 中国海上油气, 2020, 32(4): 78-84. |
| [20] | CHEN Minfeng, YANG Ziyou, YANG Jinxin. Technical limits for the overall infilling and adjustment of well pattern in low permeability reservoirs[J]. China Offshore Oil and Gas, 2020, 32(4): 78-84. |
| [21] | 杨子由, 陈民锋, 屈丹, 等. 特低渗透各向异性油藏井网加密储量动用规律[J]. 油气地质与采收率, 2020, 27(3): 57-63. |
| [21] | YANG Ziyou, CHEN Minfeng, QU Dan, et al. Reserve producing law of extra-low permeability anisotropic reservoirs with infilled well pattern[J]. Petroleum Geology and Recovery Efficiency, 2020, 27(3): 57-63. |
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