收稿：2019-02-02，
纸质出版：2020-12-28
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压裂水平井缝网系统评价是致密油藏高效开发的关键。针对目前缺乏完善的评价方法这一现状，基于动态反演理论建立了一种致密油藏压裂水平井缝网系统评价方法。首先，基于致密油渗流特征和缝网形态，考虑了非均匀缝网和弱补给等复杂因素，推导了其试井数学模型。利用解析方法获得了其井底压力解，并建立了压裂水平井缝网系统评价方法。其次，为验证评价方法的可靠性，以准噶尔盆地吉木萨尔地区为例，开展了实例应用分析。结果表明，复杂缝网水平井流动阶段包括井筒储集效应和表皮效应阶段、裂缝双线性流、裂缝线性流、压裂改造区窜流、压裂受效区线性流和拟稳态流阶段。同时发现，经过压裂改造后，实例井附近形成了主裂缝和压裂改造区，主裂缝半长为135 m，导流能力为118.87×10
-3
μm
2
；次裂缝网络储容比为6.30%~17.99%，压裂改造区渗透率为100.8×10
-3
μm
2
。本次研究工作为致密油藏参数反演、压裂评价及动态监测提供了理论基础。
Evaluation of fracture-network systems along fractured horizontal wells is vital to an efficient development of tight-oil reservoirs.Given the lack of efficient evaluation means
we
propose a method based on the dynamic inversion theory for the evaluation of fracture networks along fractured horizontal wells in tight-oil reservoirs.To begin with
a mathematical model of well testing that takes into consideration the nonhomogeneous and insufficient fluid supply of the networks is developed based on seepage activities and fracture network geometry.The bottom pressure of wells is obtained through an analytical method from the mathematical model and then used to establish a method for evaluating the fracture-networks.Subsequently
a field application in Jimusar tight oil reservoirs in the Junggar Basin is performed to prove the reliability of the method.The results show that the flow stages in the fracture networks of horizontal wells in the reservoirs involve the wellbore storage and skin effects
fracture bilinear flow
formation linear flow as well as fluid channeling
linear and quasi-stable flow in stimulated areas.It is also found that after fracturing
networks composed of major hydraulic fractures with a half-length of 135 m and a conductivity of 118.87×10
-3
μm
2
are generated near wellbores.The storability of the minor fracture networks ranges between 6.30% and 17.99%
and the permeability of the stimulated areas is 100.8×10
-3
μm
2
.This study provides a theoretical basis for research works or operations such as reservoir parameter inversion
fracturing evaluation and dynamic monitoring of tight oil reservoirs in the Junggar Basin.
牛小兵 , 冯胜斌 , 尤源 , 等 . 致密储层体积压裂作用范围及裂缝分布模式——基于压裂后实际取心资料 [J ] . 石油与天然气地质 , 2019 , 40 ( 3 ): 669 - 677 . http://ogg.pepris.com/CN/10.11743/ogg20190322 http://ogg.pepris.com/CN/10.11743/ogg20190322
Niu Xiaobing , Feng Shengbin , You Yuan , et al . Fracture extension and distribution pattern of volume fracturing in tight reservoir:An analysis based on actual coring data after fracturing [J ] . Oil & Gas Geology , 2019 , 40 ( 3 ): 669 - 677 . http://ogg.pepris.com/CN/10.11743/ogg20190322 http://ogg.pepris.com/CN/10.11743/ogg20190322
杜世涛 , 田继军 , 李沼鹈 , 等 . 准噶尔盆地二叠系页岩气储层特征及潜力区优选 [J ] . 特种油气藏 , 2018 , 25 ( 2 ): 49 - 55 . http://www.cnki.com.cn/Article/CJFDTotal-TZCZ201802009.htm http://www.cnki.com.cn/Article/CJFDTotal-TZCZ201802009.htm
Du Shitao , Tian Jijun , Li Zhaoti , et al . Permian shale gas reservoir characterization and favorable area identification in Junggar Basin [J ] . Special Oil & Gas Reservoirs , 2018 , 25 ( 2 ): 49 - 55 . http://www.cnki.com.cn/Article/CJFDTotal-TZCZ201802009.htm http://www.cnki.com.cn/Article/CJFDTotal-TZCZ201802009.htm
Fisher M K, Wright C A, Davidson B M, et al.Integrating fracture-mapping technologies to improve stimulations in the barnett shale[C]//Society of Petroleum Engineers.SPE Annual Technical Conference and Exhibition.San Antonio, Texas, USA: 2002.
Mayerhofer M J, Lolon E, Warpinski N R, et al.What is stimulated rock volume?[C]//Society of Petroleum Engineers.SPE Shale Gas Production Conference.Fort Worth, Texas, USA: 2008.
王欢 , 廖新维 , 赵晓亮 , 等 . 非常规油气藏储层体积改造模拟技术研究进展 [J ] . 特种油气藏 , 2014 , 21 ( 2 ): 8 - 15, 151 . http://www.cqvip.com/QK/98573X/201402/49560949.html http://www.cqvip.com/QK/98573X/201402/49560949.html
Wang Huan , Liao Xinwei , Zhao Xiaoliang , et al . Progress in simulation of SRV stimulation in unconventional reservoir [J ] . Special Oil and Gas Reservoirs , 2014 , 21 ( 2 ): 8 - 15, 151 . http://www.cqvip.com/QK/98573X/201402/49560949.html http://www.cqvip.com/QK/98573X/201402/49560949.html
Cipolla C L , Lolon E P , Erdle J C , et al . Modeling well performance in shale-gas reservoirs [J ] . SPE Journal , 2010 , 13 ( 4 ): 638 - 653 . http://www.researchgate.net/publication/254530430_Modeling_Well_Performance_in_Shale-Gas_Reservoirs http://www.researchgate.net/publication/254530430_Modeling_Well_Performance_in_Shale-Gas_Reservoirs
Harikesavanallur A K, Deimbacher F, Crick M V, et al.Volumetric fracture modeling approach (VFMA): Incorporating microseismic data in the simulation of shale gas reservoirs[C]//Society of Petroleum Engineers: 2010.
Suliman B, Meek R, Hull R, et al.Variable stimulated reservoir volume (SRV) simulation: Eagle ford shale case study[C]//Society of Petroleum Engineers: 2013.
Williams, Michael J, Bassem Khadhraoui, et al.Quantitative interpretation of major planes from microseismic event locations with application in production prediction[C]//Society of Exploration Geophysicists: 2010.
Hough, P.V.C.method and means for recognizing complex patterns.U.S.Patent 3069654[P].1962.
Yu X , Rutledge J , Leaney S , et al . Discrete-fracture-network generation from microseismic data by use of moment-tensor-and event-location-constrained hough transforms [J ] . SPE Journal , 2016 , 21 ( 1 ): 221 - 232 . http://dialog.proquest.com/professional/docview/1792024127?accountid=131175 http://dialog.proquest.com/professional/docview/1792024127?accountid=131175
曾联波 , 吕鹏 , 屈雪峰 , 等 . 致密低渗透储层多尺度裂缝及其形成地质条件 [J ] . 石油与天然气地质 , 2020 , 41 ( 3 ): 449 - 454 . http://ogg.pepris.com/CN/10.11743/ogg20200301 http://ogg.pepris.com/CN/10.11743/ogg20200301
Zeng Lianbo , Lyu Peng , Qu Xuefeng , et al . Multi-scale fractures in tight sandstone reservoirs with low permeability and geological conditions of their development [J ] . Oil & Gas Geology , 2020 , 41 ( 3 ): 449 - 454 . http://ogg.pepris.com/CN/10.11743/ogg20200301 http://ogg.pepris.com/CN/10.11743/ogg20200301
任龙.致密油藏体积压裂水平井缝网扩展及流固全耦合产能预测[D].青岛:中国石油大学(华东), 2016.
Ren Long.Fracture network propagation and productivity prediction based on fluid-solid fully coupling of SRV-fractured horizontal wells in tight oil reservoirs[D].Qingdao: China University of Petroleum, 2016.
陈志明 , 陈昊枢 , 廖新维 , 等 . 基于试井分析的新疆吉木萨尔页岩油藏人工缝网参数反演研究 [J ] . 石油科学通报 , 2019 , 4 ( 3 ): 263 - 272 .
Chen Zhiming , Chen Haoshu , Liao Xinwei , et al . A well-test based study for parameter estimations of artificial fracture networks in the Jimusar shale reservoir in Xinjiang [J ] . Petroleum Science Bulletin , 2019 , 4 ( 3 ): 263 - 272 .
邵心敏.陇东长7致密油储层改造缝网模态探讨[D].西安:西安石油大学, 2015.
Shao Xinmin.Study on fracture pattern modification of Longdong Chang 7 tight oil reservoir[D].Xi'an: Xi'an Shiyou University, 2015.
高建.致密气藏补给边界试井模型及应用研究[D].北京:中国石油大学(北京), 2018.
Gao Jian.Well testing model with recharge boundary in tight gas reservoir and application research[D].Beijing: China University of Petroleum (Beijing), 2018.
Brown M , Ozkan E , Raghavan R , et al . Practical solutions for pressure-transient responses of fractured horizontal wells in unconventional shale reservoirs [J ] . SPE Reservoir Evaluation & Engineering , 2011 , 14 ( 06 ): 663 - 676 . http://www.researchgate.net/publication/266664265_Practical_Solutions_for_Pressure-Transient_Responses_of_Fractured_Horizontal_Wells_in_Unconventional_Shale_Reservoirs http://www.researchgate.net/publication/266664265_Practical_Solutions_for_Pressure-Transient_Responses_of_Fractured_Horizontal_Wells_in_Unconventional_Shale_Reservoirs
Warren J E , Root P J . The behavior of naturally fractured reservoirs [J ] . SPE Journal , 1963 , 3 ( 3 ): 245 - 255 . http://ci.nii.ac.jp/naid/10011372926 http://ci.nii.ac.jp/naid/10011372926
Pedrosa O A J.Pressure transient response in stress-sensitive formations[C]//Society of Petroleum Engineers.SPE California Regional Meeting.Oakland, USA: 1986.
Van Everdingen A F , Hurst W . The application of the laplace transformation to flow problems in reservoirs [J ] . Journal of Petroleum Technology , 1949 , 1 ( 12 ): 305 - 324 . http://www.researchgate.net/publication/312117673_The_application_of_the_Laplace_transformation_to_flow_problem_in_reservoirs http://www.researchgate.net/publication/312117673_The_application_of_the_Laplace_transformation_to_flow_problem_in_reservoirs
Stehfest H . Algorithm 368:Numerical inversion of laplace transforms [J ] . Communications of the ACM , 1970 , 13 ( 1 ): 47 - 49 . http://doi.acm.org/10.1145/361953.361969 http://doi.acm.org/10.1145/361953.361969
KAPPA.Saphir-Pressure Transient Analysis.https://www.kappaeng.com/software[EB/OL].
Meng M , Chen Z , Liao X , et al . A well-testing method for parameter evaluation of multiple fractured horizontal wells with non-uniform fractures in shale oil reservoirs [J ] . Advances in Geo-Energy Research , 2020 , 4 ( 2 ): 187 - 198 . http://www.researchgate.net/publication/341430405_A_well-testing_method_for_parameter_evaluation_of_multiple_fractured_horizontal_wells_with_non-uniform_fractures_in_shale_oil_reservoirs http://www.researchgate.net/publication/341430405_A_well-testing_method_for_parameter_evaluation_of_multiple_fractured_horizontal_wells_with_non-uniform_fractures_in_shale_oil_reservoirs
许琳 , 常秋生 , 杨成克 , 等 . 吉木萨尔凹陷二叠系芦草沟组页岩油储层特征及含油性 [J ] . 石油与天然气地质 , 2019 , 40 ( 3 ): 535 - 549 . http://ogg.pepris.com/CN/10.11743/ogg20190309 http://ogg.pepris.com/CN/10.11743/ogg20190309
Xu Lin , Chang Qiusheng , Yang Chengke , et al . Characteristics and oil-bearing capability of shale oil reservoir in the Permian Lucaogou Formation, Jimusaer sag [J ] . Oil & Gas Geology , 2019 , 40 ( 3 ): 535 - 549 . http://ogg.pepris.com/CN/10.11743/ogg20190309 http://ogg.pepris.com/CN/10.11743/ogg20190309
王小军 , 梁利喜 , 赵龙 , 等 . 准噶尔盆地吉木萨尔凹陷芦草沟组含油页岩岩石力学特性及可压裂性评价 [J ] . 石油与天然气地质 , 2019 , 40 ( 3 ): 661 - 668 . http://ogg.pepris.com/CN/10.11743/ogg20190321 http://ogg.pepris.com/CN/10.11743/ogg20190321
Wang Xiaojun , Liang Lixi , Zhao Long , et al . Rock mechanics and fracability evaluation of the Lucaogou Formation oil shales in Jimusaer sag, Junggar Basin [J ] . Oil & Gas Geology , 2019 , 40 ( 3 ): 661 - 668 . http://ogg.pepris.com/CN/10.11743/ogg20190321 http://ogg.pepris.com/CN/10.11743/ogg20190321
吴承美 , 郭智能 , 唐伏平 , 等 . 吉木萨尔凹陷二叠系芦草沟组致密油初期开采特征 [J ] . 新疆石油地质 , 2014 , 35 ( 5 ): 570 - 573 . http://www.cnki.com.cn/Article/CJFDTotal-XJSD201405017.htm http://www.cnki.com.cn/Article/CJFDTotal-XJSD201405017.htm
Wu Chengmei , Guo Zhineng , Tang Fuping , et al . Early exploitation characteristics of Lucaogou tight oil of Permain in Jimusaer Sag, Junggar Basin [J ] . Xinjiang Petroleum Geology , 2014 , 35 ( 5 ): 570 - 573 . http://www.cnki.com.cn/Article/CJFDTotal-XJSD201405017.htm http://www.cnki.com.cn/Article/CJFDTotal-XJSD201405017.htm
封猛 , 胡广文 , 丁心鲁 , 等 . 吉木萨尔凹陷致密储层水平井压裂井间干扰分析 [J ] . 石油地质与工程 , 2018 , 32 ( 3 ): 108 - 110 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hnsy201803028 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hnsy201803028
Feng Meng , Hu Guangwen , Ding Xinlu , et al . Well interference analysis during horizontal well fracturing of dense reservoirs in Jimusar sag [J ] . Petroleum Geology & Engineering , 2018 , 32 ( 3 ): 108 - 110 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hnsy201803028 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hnsy201803028
郑孟林 , 田爱军 , 杨彤远 , 等 . 准噶尔盆地东部地区构造演化与油气聚集 [J ] . 石油与天然气地质 , 2018 , 39 ( 5 ): 907 - 917 . http://ogg.pepris.com/CN/10.11743/ogg20180506 http://ogg.pepris.com/CN/10.11743/ogg20180506
Zheng Menglin , Tian Aijun , Yang Tongyuan , et al . Structural evoluation and hydrocarbon accumulation in the eastern Junggar Basin [J ] . Oil & Gas Geology , 2018 , 39 ( 5 ): 907 - 917 . http://ogg.pepris.com/CN/10.11743/ogg20180506 http://ogg.pepris.com/CN/10.11743/ogg20180506
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