[1]王继伟,曲占庆,郭天魁,等.考虑压裂液渗吸的压后压裂液返排的数值模拟[J].深圳大学学报理工版,2023,40(1):56-65.[doi:10.3724/SP.J.1249.2023.01056]
 WANG Jiwei,QU Zhanqing,GUO Tiankui,et al.Numerical simulation of post-fracturing flowback considering fracturing fluid imbibition[J].Journal of Shenzhen University Science and Engineering,2023,40(1):56-65.[doi:10.3724/SP.J.1249.2023.01056]
点击复制

考虑压裂液渗吸的压后压裂液返排的数值模拟()
分享到:

《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第40卷
期数:
2023年第1期
页码:
56-65
栏目:
环境与能源
出版日期:
2023-01-06

文章信息/Info

Title:
Numerical simulation of post-fracturing flowback considering fracturing fluid imbibition
文章编号:
202301007
作者:
王继伟曲占庆郭天魁陈铭吕明锟
非常规油气开发教育部重点实验室,中国石油大学(华东)石油工程学院,山东青岛266580
Author(s):
WANG Jiwei QU Zhanqing GUO Tiankui CHEN Ming and LV Mingkun
Key Laboratory of Unconventional Oil & Gas Development of Ministry of Education, School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong Province, P.R.China
关键词:
油田开发水力压裂压裂液返排压裂液渗吸支撑剂回流返排制度设计数值模拟
Keywords:
oilfield development hydraulic fracturing fracturing fluid flowback imbibition of fracturing fluid proppant reflux flowback working system design numerical simulation
分类号:
TE357.1
DOI:
10.3724/SP.J.1249.2023.01056
文献标志码:
A
摘要:
压后压裂液返排是水力压裂施工过程中的关键步骤,在非常规致密储层中压裂液的渗吸现象不容忽视.基于油水两相渗流理论、伯努利方程和连续性方程,建立考虑压裂液渗吸的返排数值模型,通过数值计算获得返排过程中的压力和排量等数据;根据支撑剂回流模型计算压裂液返排临界出砂流量,基于控制支撑剂回流和压裂液快速返排的原则,设计一套返排制度优化方法.将数值模拟结果与中国大庆油田LX3井实际返排数据对比验证,对长庆油田M87井进行返排工作制度设计,并分析了地层产出液黏度和初始地层压力对压裂液返排的影响.结果表明:返排过程中存在地层流体向裂缝渗流现象,原始地层压力改变对压裂液返排影响明显,而地层产出液的影响甚微.LX3井返排流量和井口压力的数值计算结果与现场监测结果基本相符,平均误差分别为13.8%和15.5%,验证了返排数值模型的准确性较高,可用于指导现场压裂返排施工设计.
Abstract:
Fracturing fluid flowback is a key step in the process of hydraulic fracturing, and the imbibition of fracturing fluid in unconventional tight reservoirs cannot be ignored. Based on the oil-water two-phase seepage theory, Bernoulli equation and the continuity equation, we establish a numerical simulation model of post-fracturing flowback by considering the effect of fracturing fluid imbibition and obtain the pressure and flowback rate during the flowback process through programmed numerical calculation. The critical flow rate of fracturing fluid when the proppant starts to reflux is calculated according to the proppant backflow model. Then an optimization design method of flowback working system is formed based on the principle of controlling proppant backflow and rapid fluid flowback. The numerical simulation results are compared with the actual flowback data of LX3 well, and the flowback working strategy of M87 well is designed, and the effects of formation fluid viscosity and initial formation pressure on fracturing fluid flowback are analyzed. The results show that a phenomenon of formation fluid seepage to fractures is observed during the flowback, and the change of original formation pressure has a significant impact on fracturing fluid flowback, but the formation produced fluid has minor effects. The numerical results of flowrate and wellhead pressure of LX3 well are consistent with the field monitor data, with average errors of 13.8% and 15.5% respectively. It is verified that the flowback numerical model has high accuracy and can be used to guide the on-site fracturing flowback construction design in oilfield.

参考文献/References:

[1] 仝少凯,高德利. 水力压裂基础研究进展及发展建议[J]. 石油钻采工艺,2019,41(1):101-115.
TONG Shaokai, GAO Deli. Basic research progress and development suggestions on hydraulic fracturing [J]. Oil Drilling & Production Technology, 2019, 41(1): 101-115.(in Chinese)
[2] 薛明宇,程远方,闫传梁,等. 页岩气藏水平井多级水力压裂方法优选[J]. 大庆石油地质与开发,2020,39(6):152-159.
XUE Mingyu, CHENG Yuanfang, YAN Chuanliang, et al. Optimization of multistage hydraulic fracturing method of horizontal wells in shale gas reservoirs [J]. Petroleum Geology & Oilfield Development in Daqing, 2020, 39(6): 152-159.(in Chinese)
[3] GUO Tiankui, ZHANG Shicheng, GE Hongkui, et al. A new method for evaluation of fracture network formation capacity of rock [J]. Fuel, 2015, 140: 778-787.
[4] HU Jinghong, ZHAO Jinzhou, LI Yongming. A proppant mechanical model in postfrac flowback treatment [J]. Journal of Natural Gas Science & Engineering, 2014, 20: 23-26.
[5] 侯腾飞,张士诚,马新仿,等. 支撑剂沉降规律对页岩气压裂水平井产能的影响[J]. 石油钻采工艺,2017,39(5):638-645.
HOU Tengfei, ZHANG Shicheng, MA Xinfang, et al. Effect of proppant settlement laws on the productivity of shale-gas horizontal wells after the fracturing [J]. Oil Drilling & Production Technology, 2017, 39(5): 638-645.(in Chinese)
[6] 任岚,邸云婷,赵金洲,等. 页岩气藏压裂液返排理论与技术研究进展[J]. 大庆石油地质与开发,2019,38(2):144-152.
REN Lan, DI Yunting, ZHAO Jinzhou, et al. Advances in the theory and technique of the fracturing fluid flowback in shale gas reservoirs [J]. Petroleum Geology & Oilfield Development in Daqing, 2019, 38(2): 144-152.(in Chinese)
[7] XU Jiaxiang, DING Yunhong, YANG Lifeng, et al. Effect of proppant deformation and embedment on fracture conductivity after fracturing fluid loss [J]. Journal of Natural Gas Science and Engineering, 2019, 71: 102986.
[8] VALK? P P,ECONOMIDES M J. Fluid-leakoff delineation in high-permeability fracturing [J]. SPE Production & Facilities, 1999, 14(2): 110-116.
[9] 屈亚光,巩旭,石康立,等. 页岩储层压裂液渗吸及返排机理研究进展[J]. 当代化工,2020,49(11):2532-2535.
QU Yaguang, GONG Xu, SHI Kangli, et al. Research progress of imbibition and backflow mechanism of fracturing fluids in shale reservoirs [J]. Contemporary Chemical Industry, 2020, 49(11): 2532-2535.(in Chinese)
[10] 杨海,李军龙,石孝志,等. 页岩气储层压后返排特征及意义[J]. 中国石油大学学报自然科学版,2019,43(4):98-105.
YANG Hai, LI Junlong, SHI Xiaozhi, et al. Characteristics and significance of flow-back processes after fracturing in shale-gas reservoirs [J].Journal of China University of Petroleum Edition of Natural Science, 2019, 43(4): 98-105.(in Chinese)
[11] 李小龙,肖雯,刘晓强,等. 压裂返排技术优化[J]. 断块油气田,2015,22(3):402-404.
LI Xiaolong, XIAO Wen, LIU Xiaoqiang, et al. Fracturing flowback technology optimization [J]. Fault-Block Oil & Gas Field, 2015, 22(3): 402-404.(in Chinese)
[12] 韩慧芬,王良,贺秋云,等. 页岩气井返排规律及控制参数优化[J]. 石油钻采工艺,2018,40(2):253-260.
HAN Huifen, WANG Liang, HE Qiuyun, et al. Flowback laws and control parameter optimization of shale gas wells [J]. Oil Drilling & Production Technology, 2018, 40(2): 253-260.(in Chinese)
[13] 张锋,陈晓明,洪将领,等. 新疆低渗透储层压后返排制度优化研究[J]. 地质与勘探,2019,55(2):622-629.
ZHANG Feng, CHEN Xiaoming, HONG Jiangling, et al. Optimization of the fracturing fluid flowback system in tight reservoirs of Xinjiang [J]. Geology and Exploration, 2019, 55(2): 622-629.(in Chinese)
[14] 陈昱辛,曲占庆,丁云宏,等. 多层段水力压裂压后统一返排模型[J]. 断块油气田,2020,27(4):484-488.
CHEN Yuxin, QU Zhanqing, DING Yunhong, et al. Unified backflow model after multilayer hydraulic fracturing [J]. Fault-Block Oil & Gas Field, 2020, 27(4): 484-488.(in Chinese)
[15] 杜洋,雷炜,李莉,等. 页岩气井压裂后焖排模式[J]. 岩性油气藏,2019,31(3):145-151.
DU Yang, LEI Wei, LI Li, et al. Shut-in and flow-back pattern of fractured shale gas wells [J]. Lithologic Reservoirs, 2019, 31(3): 145-151.(in Chinese)
[16] 屈雪峰,雷启鸿,高武彬,等. 鄂尔多斯盆地长7致密油储层岩心渗吸试验[J]. 中国石油大学学报自然科学版,2018,42(2):102-109.
QU Xuefeng, LEI Qihong, GAO Wubin, et al. Experimental study on imbibition of Chang7 tight oil cores in Erdos Basin [J]. Journal of China University of Petroleum Edition of Natural Science, 2018, 42(2): 102-109.(in Chinese)
[17] 于欣,张猛,贺连啟,等. 清洁压裂液返排液对致密油藏自发渗吸驱油效果的影响[J]. 大庆石油地质与开发,2019,38(1):162-168.
YU Xin, ZHANG Meng, HE Lianqi, et al. Influences of the clean fracturing flow-back fluid on the oil displaced effect of the spontaneous imbibition in dense reservoirs [J]. Petroleum Geology & Oilfield Development in Daqing, 2019, 38(1): 162-168.(in Chinese)
[18] 姚军,刘礼军,孙海,等. 复杂裂缝性致密油藏注水吞吐数值模拟及机制分析[J]. 中国石油大学学报自然科学版,2019,43(5):108-117.
YAO Jun, LIU Lijun, SUN Hai, et al. Numerical simulation and mechanism analysis of water huff and puff process in complex fractured tight oil reservoirs [J]. Journal of China University of Petroleum Edition of Natural Science, 2019, 43(5): 108-117.(in Chinese)
[19] 苏玉亮,韩秀虹,王文东,等. 致密油体积压裂耦合渗吸产能预测模型[J]. 深圳大学学报理工版,2018,35(4):345-352.
SU Yuliang, HAN Xiuhong, WANG Wendong, et al. Production capacity prediction model for multi-stage fractured horizontal well coupled with imbibition in tight oil reservoir [J]. Journal of Shenzhen University Science and Engineering, 2018, 35(4): 345-352.(in Chinese)
[20] QU Zhanqing, WANG Jiwei, GUO Tiankui, et al. Optimization on fracturing fluid flowback model after hydraulic fracturing in oil well [J]. Journal of Petroleum Science and Engineering, 2021, 204, 108703.
[21] MENG Qingbang, CAI Zhongxian, CAI Jianchao, et al. Oil recovery by spontaneous imbibition from partially water-covered matrix blocks with different boundary conditions [J]. Journal of Petroleum Science and Engineering, 2019, 172: 454-464.
[22] POOLADI-DARVISH M, FIROOZABADI A. Cocurrent and countercurrent imbibition in a water-wet matrix block [J]. SPE Journal, 2000, 5(1): 3-11.
[23] PALMER I D, CARROLL J H B. Three-dimensional hydraulic fracture propagation in the presence of stress variations [J]. Society of Petroleum Engineers Journal, 1983, 23: 870-878.
[24] PALMER I D, LUISKUTTY C T. A model of the hydraulic fracturing process for elongated vertical fractures and comparisons of results with other models [C]//SPE/DOE Low Permeability Gas Reservoirs Symposium, Denver, USA: [s.n.], 1985: SPE-13864-MS.

相似文献/References:

[1]陈民锋,赵晶,赵梦盼,等.低渗透稠油油藏储量有效动用界限研究[J].深圳大学学报理工版,2013,30(No.2(111-220)):210.[doi:10.3724/SP.J.1249.2013.02210]
 Chen Minfeng,Zhao Jing,Zhao Mengpan,et al.Study on limits of effective drive in low-permeability heavy-oil reservoirs[J].Journal of Shenzhen University Science and Engineering,2013,30(1):210.[doi:10.3724/SP.J.1249.2013.02210]
[2]陈民锋,李晓风,王敏,等.深水油田高饱和油藏能量合理补充时机研究[J].深圳大学学报理工版,2013,30(No.6(551-660)):649.[doi:10.3724/SP.J.1249.2013.06649]
 Chen Minfeng,Li Xiaofeng,Wang Min,et al.Reasonable opportune moment of energy supplement of high saturation reservoirs in deepwater oilfield[J].Journal of Shenzhen University Science and Engineering,2013,30(1):649.[doi:10.3724/SP.J.1249.2013.06649]
[3]廉培庆,陈志海,董广为,等.水平井与非均质盒式油藏耦合模型[J].深圳大学学报理工版,2015,32(3):266.[doi:10.3724/SP.J.1249.2015.03266]
 Lian Peiqing,Chen Zhihai,Dong Guangwei,et al.A coupling model for horizontal well in heterogeneous box-shaped reservoir[J].Journal of Shenzhen University Science and Engineering,2015,32(1):266.[doi:10.3724/SP.J.1249.2015.03266]
[4]侯腾飞,张士诚,马新仿,等.涪陵页岩气X井裂缝网络参数对产能的影响[J].深圳大学学报理工版,2016,33(4):409.[doi:10.3724/SP.J.1249.2016.04409]
 Hou Tengfei,Zhang Shicheng,Ma Xinfang,et al.Influence of fracture network parameters on productivity of shale gas well X in Fuling block[J].Journal of Shenzhen University Science and Engineering,2016,33(1):409.[doi:10.3724/SP.J.1249.2016.04409]
[5]李帅,丁云宏,刘广峰,等.致密储层体积改造润湿反转提高采收率的研究[J].深圳大学学报理工版,2017,34(1):98.[doi:10.3724/SP.J.1249.2017.01098]
 Li Shuai,Ding Yunhong,Liu Guangfeng,et al.Enhancing oil recovery by wettability alteration during fracturing in tight reservoirs[J].Journal of Shenzhen University Science and Engineering,2017,34(1):98.[doi:10.3724/SP.J.1249.2017.01098]
[6]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.[doi:10.3724/SP.J.1249.2017.01091]
 Chen Minfeng,Wang Zhaoqi,Zhang Qichen,et al.Effective displacement rules for interwell with threshold pressure[J].Journal of Shenzhen University Science and Engineering,2017,34(1):91.[doi:10.3724/SP.J.1249.2017.01091]
[7]张贤松,谢晓庆,康晓东,等.非均质油藏聚合物驱注入参数优化方法改进与应用[J].深圳大学学报理工版,2018,35(4):362.[doi:10.3724/SP.J.1249.2018.04362]
 ZHANG Xiansong,XIE Xiaoqing,KANG Xiaodong,et al.An improved optimization method and application for injection parameter of polymer flooding for heterogeneous reservoir[J].Journal of Shenzhen University Science and Engineering,2018,35(1):362.[doi:10.3724/SP.J.1249.2018.04362]
[8]张继成,范佳乐,匡力,等.一种预测特高含水期开发指标的联解法[J].深圳大学学报理工版,2018,35(6):558.[doi:10.3724/SP.J.1249.2018.06574]
 ZHANG Jicheng,FAN Jiale,KUANG Li,et al.An integrated method for predicting the development index of extra-high water cut period[J].Journal of Shenzhen University Science and Engineering,2018,35(1):558.[doi:10.3724/SP.J.1249.2018.06574]
[9]苏泽中,林加恩,柏明星,等.天然能量开发阶段的缝洞型油藏井间连通性分析[J].深圳大学学报理工版,2020,37(6):645.[doi:10.3724/SP.J.1249.2020.06645]
 SU Zezhong,LIN Jiaen,BAI Mingxing,et al.Inter-well connectivity analysis in carbonate fracture-vuggy reservoir in natural energy development stage[J].Journal of Shenzhen University Science and Engineering,2020,37(1):645.[doi:10.3724/SP.J.1249.2020.06645]
[10]刘旭鹏,袁彬,戴彩丽,等.低渗油藏活性纳米颗粒减阻增注解析模拟方法[J].深圳大学学报理工版,2021,38(6):563.[doi:10.3724/SP.J.1249.2021.06563]
 LIU Xupeng,YUAN Bin,,et al.A novel analytical simulation method of utilization of surfactant-active nanoparticles for well injection enhancement in low-permeability reservoirs[J].Journal of Shenzhen University Science and Engineering,2021,38(1):563.[doi:10.3724/SP.J.1249.2021.06563]
[11]何小东,张景臣,王俊超,等.考虑天然裂缝条件下水平井压裂簇间距优化——以吉木萨尔页岩油为例[J].深圳大学学报理工版,2022,39(2):134.[doi:10.3724/SP.J.1249.2022.02134]
 HE Xiaodong,ZHANG Jingchen,WANG Junchao,et al.Optimization of fracturing cluster spacing of horizontal wells with natural fractures: taking Jimusar shale oil as an example[J].Journal of Shenzhen University Science and Engineering,2022,39(1):134.[doi:10.3724/SP.J.1249.2022.02134]
[12]钟安海,郭天魁.水平井多簇支撑剂分布数值模拟[J].深圳大学学报理工版,2022,39(5):576.[doi:10.3724/SP.J.1249.2022.05576]
 ZHONG Anhai and GUO Tiankui.Numerical simulation of multi-cluster proppant distribution in horizontal wells[J].Journal of Shenzhen University Science and Engineering,2022,39(1):576.[doi:10.3724/SP.J.1249.2022.05576]

备注/Memo

备注/Memo:
Received: 2022- 05-08; Accepted: 2022-09-14; Online (CNKI): 2022-11-19
Foundation: National Key R & D Program of China (2020YFA0711800); Natural Science Foundation of Shandong Province Excellent Youth Project (ZR2020YQ36)
Corresponding author: Professor QU Zhanqing.E-mail: quzhq@upc.edu.cn
Citation: WANG Jiwei, QU Zhanqing, GUO Tiankui, et al. Numerical simulation of post-fracturing flowback considering fracturing fluid imbibition [J]. Journal of Shenzhen University Science and Engineering, 2023, 40(1): 56-65.(in Chinese)
基金项目:国家重点研发计划资助项目(2020YFA0711800);山东省自然科学基金省优青资助项目(ZR2020YQ36)
作者简介:王继伟(1996—),中国石油大学(华东)博士研究生.研究方向:储层改造理论与技术.E-mail: 17854262642@163.com
引文:王继伟,曲占庆,郭天魁,等.考虑压裂液渗吸的压后压裂液返排的数值模拟[J].深圳大学学报理工版,2023,40(1):56-65.
更新日期/Last Update: 2023-01-30