理论与试验研究

非平面裂缝中支撑剂运移和铺置的数值模拟

  • 陈思源 ,
  • 金衍 ,
  • 韦世明
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  • 1.中国石油大学(北京) 石油工程学院,北京 102249;
    2.油气资源与工程全国重点实验室,北京 102249
陈思源(1997—),男,江苏淮安人,博士生,主要从事支撑剂运移等领域的科研工作。E-mail:cupchensiyuan@163.com
金衍(1972—),男,浙江临海人,博士,教授,主要从事石油工程岩石力学等领域的研究工作。E-mail:jiny@cup.edu.cn

收稿日期: 2025-01-12

  网络出版日期: 2025-09-03

基金资助

国家自然科学基金(52334001);中国石油大学(北京)青年拔尖人才项目(ZX20230042)

Numerical Simulation of Proppant Transportation and Distribution in the Nonplanar Fracture

  • Chen Siyuan ,
  • Jin Yan ,
  • Wei Shiming
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  • 1. College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, P.R. China;
    2. State Key Laboratory of Petroleum Resources and Engineering, Beijing 102249, P.R. China

Received date: 2025-01-12

  Online published: 2025-09-03

摘要

大位移斜井压裂是开发超深油气储层的有效手段,由于裂缝在三维空间中扭曲延伸形成了复杂的非平面形态,支撑剂的运移规律变得更加复杂。为研究非平面裂缝中支撑剂的运移规律,本文建立了支撑剂在三维非平面裂缝中运移的流固耦合模型,并基于计算流体力学(CFD)和离散单元方法(DEM)进行求解。研究了排量、支撑剂密度、支撑剂粒径和压裂液粘度等因素对支撑剂运移和铺置的影响。研究表明:非平面裂缝形态对支撑剂运移有显著影响,与平面裂缝中的流动形式相比,非平面裂缝中的流动出现涡流,支撑剂间及支撑剂与裂缝壁面的碰撞频率增大,增大了砂液流动过程中的能量损耗;通过增大排量可以避免近井区域的砂堵,裂缝内的砂堤长度增加;随着支撑剂密度和粒径的降低,砂堤长度增大且高度减小;高粘度压裂液能够有效携带支撑剂运移,避免支撑剂在近井处沉降发生砂堵。本研究明确了非平面裂缝支撑剂运移和铺置规律,有助于指导超深层大斜度井压裂的支撑剂泵注施工参数设计。

本文引用格式

陈思源 , 金衍 , 韦世明 . 非平面裂缝中支撑剂运移和铺置的数值模拟[J]. 地下空间与工程学报, 2025 , 21(4) : 1183 -1193 . DOI: 10.20174/j.JUSE.2025.04.09

Abstract

Hydraulic fracturing of highly deviated wells is an effective means to develop ultra-deep oil and gas reservoirs. The transportation law of proppant becomes more complicated due to the complex nonplanar morphology formed by the distortion and extension of fractures in three-dimensional space. To investigate the transportation of proppant in nonplanar fracture, a fluid-solid coupling model of proppant transportation in the 3D nonplanar fracture was established and solved based on computational fluid dynamics (CFD) and discrete element method (DEM). The effects of displacement, proppant density, proppant size and fluid viscosity on proppant transportation and distribution were studied. The results show that: The shape of nonplanar fractures has a significant influence on proppant transportation. Compared with the flow form in planar fracture, the flow in nonplanar fracture appears eddy current. The collision frequency between proppant and fracture wall and other proppants increases, which increases the energy loss during sand-carrying fluid flow. By increasing the displacement, sand plugging in the near-wellbore area can be avoided and the length of sand bank in the fracture is increased. As proppant density and proppant size decrease, the length of the sand bank increases and the height decreases. High-viscosity fracturing fluid can effectively carry proppant for transportation and avoid proppant settlement near the wellbore to occur sand plugging. This study clarifies the laws of proppant transportation and distribution in the nonplanar fracture, and helps guide the design of proppant pumping construction parameters for ultra-deep highly deviated well fracturing.

参考文献

[1] 黄福喜, 汪少勇, 李明鹏, 等. 中国石油深层、超深层油气勘探进展与启示[J]. 天然气工业, 2024, 44(1): 86-96. (Huang Fuxi, Wang Shaoyong, Li Mingpeng, et al. Progress and implications of deep and ultra-deep oil and gas exploration in PetroChina[J]. Natural Gas Industry, 2024, 44(1): 86-96. (in Chinese))
[2]苏洲, 彭永洪, 徐强, 等. 库车山前大斜度井桥射联作密切割分段压裂现场试验与认识[J]. 石油工业技术监督, 2022, 38(10): 69-72. (Su Zhou, Peng Yonghong, Xü Qiang, et al. Field test of densely segmented bridge plug-perforation combination fracturing technology for highly deviated wells in Kuqa piedmont and some understandings[J]. Technology Supervision in Petroleum Industry, 2022, 38(10): 69-72. (in Chinese))
[3]刘洪涛, 刘举, 刘会锋, 等. 塔里木盆地超深层油气藏试油与储层改造技术进展及发展方向[J]. 天然气工业, 2020, 40(11): 76-88. (Liu Hongtao, Liu Ju, Liu Huifeng, et al. Progress and development direction of production test and reservoir stimulation technologies for ultra-deep oil and gas reservoirs in Tarim Basin[J]. Natural Gas Industry, 2020, 40(11): 76-88. (in Chinese))
[4]刘彝, 刘玲, 姜喜梅, 等. 大斜度井精细分段压裂技术研究及应用[J]. 中国矿业, 2023, 32(增1): 470-474. (Liu Yi, Liu Ling, Jiang Ximei, et al. Research and application of fine stage fracturing technology in high angle deviated well[J]. China Mining Magazine, 2023, 32(Supp.1): 470-474. (in Chinese))
[5]彭永洪, 陈飞, 李彦召, 等. 库车山前大斜度井储层改造试验与认识[J]. 钻采工艺, 2021, 44(3): 33-36, 41. (Peng Yonghong, Chen Fei, Li Yanzhao, et al. Experiment and cognition of reservoir stimulation in highly-deviated well in Kuqa foreland basin[J]. Drilling & Production Technology, 2021, 44(3): 33-36, 41. (in Chinese))
[6]梅舜豪, 袁凯, 李根. 大斜度井水力压裂裂缝形态分析[J]. 中国石油和化工标准与质量, 2022, 42(2): 122-123, 126. (Mei Shunhao, Yuan Kai, Li Gen. Fracture morphology analysis of hydraulic fracturing in high deviated wells[J]. China Petroleum and Chemical Standard and Quality, 2022, 42(2): 122-123, 126. (in Chinese))
[7]李明辉, 周福建, 胡晓东, 等. 大斜度井多簇水力压裂裂缝扩展数值模拟[J]. 科学技术与工程, 2020, 20(28): 11555-11561. (Li Minghui, Zhou Fujian, Hu Xiaodong, et al. Numerical simulation of multi-cluster hydraulic fracture propagation in highly deviated wells[J]. Science Technology and Engineering, 2020, 20(28): 11555-11561. (in Chinese))
[8]Huang J, Hao Y, Settgast R R, et al. Validation and application of a three-dimensional model for simulating proppant transport and fracture conductivity[J]. Rock Mechanics and Rock Engineering, 2023, 56(10): 7091-7113.
[9]周德胜, 张争, 惠峰, 等. 滑溜水压裂主裂缝内支撑剂输送规律实验及数值模拟[J]. 石油钻采工艺, 2017, 39(4): 499-508. (Zhou Desheng, Zhang Zheng, Hui Feng, et al. Experiment and numerical simulation on transportation laws of proppant in major fracture during slick water fracturing[J]. Oil Drilling & Production Technology, 2017, 39(4): 499-508. (in Chinese))
[10]Lu C, Ma L, Li Z, et al. A novel hydraulic fracturing method based on the coupled CFD-DEM numerical simulation study[J]. Applied Sciences, 2020, 10(9): 3027.
[11]江锚, 闫新江, 幸雪松, 等. 疏松砂岩压裂充填支撑剂在裂缝中运移规律数值模拟[J]. 河南科学, 2023, 41(12): 1733-1737. (Jiang Mao, Yan Xinjiang, Xing Xuesong, et al. Numerical simulation of proppant migration in fractures of unconsolidated sandstone fracturing and filling[J]. Henan Science, 2023, 41(12): 1733-1737. (in Chinese))
[12]郭天魁, 吕明锟, 陈铭, 等. 体积压裂多分支裂缝支撑剂运移规律[J]. 石油勘探与开发, 2023, 50(4): 832-844. (Guo Tiankui, Lü Mingkun, Chen Ming, et al. Proppant transport law in multi-branched fractures induced by volume fracturing[J]. Petroleum Exploration and Development, 2023, 50(4): 832-844. (in Chinese))
[13]郭兴, 孙晓, 穆景福, 等. 超临界CO2压裂缝内支撑剂运移规律[J].钻井液与完井液, 2022, 39(5): 629-637. (Guo Xing, Sun Xiao, Mu Jingfu, et al. Proppant migration in fracture fractured with supercritical CO2 fracturing fluid[J]. Drilling Fluid & Completion Fluid, 2022, 39(5): 629-637. (in Chinese))
[14]Ma W, Perng J, Tomac I. Experimental investigation of proppant flow and transport dynamics through fracture intersections[J]. Geomechanics for Energy and the Environment, 2022, 30: 100232.
[15]王瑞. 弯曲裂缝内支撑剂运移机理研究[D]. 重庆:重庆科技学院, 2022. (Wang Rui. Study on the mechanism of proppant migration in flexural fracture[D]. Chongqing: Chongqing University of Science and Technology, 2022. (in Chinese))
[16]Qu H, Wang R, Ao X, et al. Experimental investigation of particle transport and distribution in a vertical nonplanar fracture[J]. Powder Technology, 2021, 394: 935-950.
[17]Li J, Liu P, Kuang S, et al. Visual lab tests: Proppant transportation in a 3D printed vertical hydraulic fracture with two-sided rough surfaces[J]. Journal of Petroleum Science and Engineering, 2021, 196: 107738.
[18]Qu H, Xu Y, Liu Y, et al. Experimental study of fluid-particle flow characteristics in a rough fracture[J]. Energy, 2023, 285: 129380.
[19]Zhang Z, Mao S, Zhao H, et al. Simulation of proppant transport in field-scale curved fractures[A]// SPE/AAPG/SEG Unconventional Resources Technology Conference[C]. 2020: 135-151.
[20]Qu H, Liu Y, Lin H, et al. 3D CFD-DEM simulation and experiment on proppant particle-fluid flow in a vertical, nonplanar fracture with bends[J]. International Journal of Multiphase Flow, 2022, 146: 103873.
[21]王雪飞, 王素玲, 侯峰, 等. 基于CFD-DEM方法的迂曲裂缝中支撑剂运移关键影响因素分析[J]. 特种油气藏, 2022, 29(6): 150-158. (Wang Xuefei, Wang Suling, Hou Feng, et al. Analysis on key influencing factors of proppant migration in tortuous fractures based on CFD-DEM method[J]. Special Oil & Gas Reservoirs, 2022, 29(6): 150-158. (in Chinese))
[22]Li J, Kuang S, Huang F, et al. CFD-DEM modelling and analysis of proppant transportation inside tortuous hydraulic fractures[J]. Powder Technology, 2024, 432: 119155.
[23]尹邦堂, 张超, 王志远, 等. 非常规油气储集层粗糙压裂裂缝内支撑剂运移机理[J]. 石油勘探与开发, 2023, 50(3): 624-632. (Yin Bangtang, Zhang Chao, Wang Zhiyuan, et al. Proppant transport in rough fractures of unconventional oil and gas reservoirs[J]. Petroleum Exploration and Development, 2023, 50(3): 624-632. (in Chinese))
[24]Barboza B R, Chen B, Li C. A review on proppant transport modelling[J]. Journal of Petroleum Science and Engineering, 2021, 204: 108753.
[25]Isah A, Hiba M, Al-Azani K, et al. A comprehensive review of proppant transport in fractured reservoirs: Experimental, numerical, and field aspects[J]. Journal of Natural Gas Science and Engineering, 2021, 88: 103832.
[26]Wen Z, Zhang L, Tang H, et al. A review on numerical simulation of proppant transport: Eulerian-Lagrangian views[J]. Journal of Petroleum Science and Engineering, 2022, 217: 110902.
[27]Li J, He S, Wu M, et al. A comprehensive review of the proppant transportation in different simplified fracture models: Experimentation, modeling, and prospects[J].Geoenergy Science and Engineering, 2023, 228: 211974.
[28]崔传智, 李景林, 吴忠维, 等. 复杂裂缝内支撑剂铺置规律及有效支撑面积[J]. 科学技术与工程, 2023, 23(30): 12926-12935. (Cui Chuanzhi, Li Jinglin, Wu Zhongwei, et al. Proppant placement rule and effective supporting area in complex fractures[J]. Science Technology and Engineering, 2023, 23(30): 12926-12935. (in Chinese))
[29]Luo M, Jia G, Yang Y, et al. Numerical simulation of proppant transportation and placement in several complex structure fractures of a shale reservoir using a CFD approach[J]. Gas Science and Engineering, 2023, 118: 205115.
[30]Zhong W, Yu A, Liu X, et al. DEM/CFD-DEM modelling of non-spherical particulate systems: theoretical developments and applications[J]. Powder technology, 2016, 302: 108-152.
[31]Hertz H. The contact of elastic solids[J]. Journal für diereine und angewandte Mathematik, 1881, 92: 156-171.
[32]Mindlin R D. Compliance of elastic bodies in contact[J]. 1949.
[33]Tsuo Y P, Gidaspow D. Computation of flow patterns in circulating fluidized beds[J]. AIChE Journal, 1990, 36(6): 885-896.
[34]Liu G, Chen S, Xu H, et al. Experimental investigation on proppant transport behavior in hydraulic fractures of tight oil and gas reservoir[J]. Geofluids, 2022, 2022(1): 1385922.
[35]钟森, 谭明文, 赵祚培, 等. 永川深层页岩气藏水平井体积压裂技术[J]. 石油钻采工艺, 2019, 41(4): 529-533. (Zhong Sen, Tan Mingwen, Zhao Zuopei, et al. Volume fracturing for horizontal wells in Yongchuan deep shale gas reservoirs[J]. Oil Drilling & Production Technology, 2019, 41(4): 529-533. (in Chinese))
[36]向洪, 隋阳, 王静, 等. 胜北深层致密砂岩气藏水平井细分切割体积压裂技术[J]. 石油钻采工艺, 2021, 43(3): 368-373. (Xiang Hong, Sui Yang, Wang Jing, et al. Horizontal-well subdivision cutting and volume fracturing technology for the deep tight sandstone gas reservoirs in the Shengbei Block[J]. Oil Drilling & Production Technology, 2021, 43(3): 368-373. (in Chinese))
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