深圳大学学报理工版

吉木萨尔国家级陆相页岩油示范区位于中国准噶尔盆地东部，该示范区页岩油资源丰富，开发潜力巨大．大段多簇压裂试验中，为在密切割布缝设计工艺上优化簇间距，提高压裂改造体积，根据目标区块的地质资料和工程资料，采用水力压裂模拟和数值模拟的分析手段，建立一套考虑天然裂缝的簇间距优化方法，模拟密切割工艺下，不同簇间距和不同基质渗透率对改造效果和区域动用程度的影响．结果表明，通过缩小簇间距，可减缓井底压力下降幅度，在页岩油渗透率为1×10-6～1×10-5μm2时，簇间距设计不超过20m，才能延缓压力下降．研究结果可为该区块页岩油的簇间距设计提供理论参考．

Jimusar national continental shale oil demonstration zone is located in the east of Junggar Basin of China, which is rich in shale oil resources and great development potential. In the large-segment and multi-cluster fracturing test, in order to optimize the cluster spacing and increase the fracturing reconstruction volume in the design process of close cutting seams, a set of cluster spacing optimization methods considering natural fractures is established by using the analysis methods of hydraulic fracturing simulation and numerical simulation according to the geological and engineering data of the target block, and the influence of different cluster spacing and different matrix permeability on reconstruction effect and regional exploitation degree is simulated under the close cutting process.The results show that by reducing cluster spacing, the pressure drop at the bottom hole can be slowed down. When the shale oil permeability is within the range of 1×10-6 to 1×10-5 μm2, the designed cluster spacing should not exceed 20 m so as to delay the pressure drop. The research results can provide theoretical references for cluster spacing design of shale oil in this block.

引言
1 研究区概况
2 簇间距优化模型的建立
3 模拟结果讨论与分析
4 结论

图1 过M1-M3-M5连井剖面图Fig. 1 Cross section of M1-M3-M5

表1 M井区上下甜点体裂缝密度Table 1 Fracture density of upper and lower sweet spot bodies in M well area

$图2 构造缝模型、层理缝模型以及构造缝耦合层理缝模型Fig. 2 Structural fracture model, bedding fracture model, structural fracture coupled bedding fracture model$

图2 构造缝模型、层理缝模型以及构造缝耦合层理缝模型Fig. 2 Structural fracture model, bedding fracture model, structural fracture coupled bedding fracture model

表2 J2井力学参数解释成果Table 2 Interpretation results of mechanical parameters of J2 well

图3 地应力场模型（水平最大主应力） Fig. 3 Model of in-situ stress field (horizontal maximum principal stress)

图4 不同簇间距形成的压后缝网Fig. 4 The pressure back seam network formed by different cluster spacing

$图5 压后缝网之间的应力阴影Fig. 5 Stress shadow between the nets after fracturing$

图5 压后缝网之间的应力阴影Fig. 5 Stress shadow between the nets after fracturing

$图6 簇间距为10 m的压裂缝网随时间推移的生产动态Fig. 6 Production performance of compressive fracture network with cluster spacing of 10 m over time$

图6 簇间距为10 m的压裂缝网随时间推移的生产动态Fig. 6 Production performance of compressive fracture network with cluster spacing of 10 m over time

$图7 簇间距为20 m的压裂缝网随时间推移的生产动态Fig. 7 Production performance of compressive fracture network with cluster spacing of 20 m over time$

图7 簇间距为20 m的压裂缝网随时间推移的生产动态Fig. 7 Production performance of compressive fracture network with cluster spacing of 20 m over time

$图8 簇间距为30 m的压裂缝网随时间推移的生产动态Fig. 8 Production performance of compressive fracture network with cluster spacing of 30 m over time$

图8 簇间距为30 m的压裂缝网随时间推移的生产动态Fig. 8 Production performance of compressive fracture network with cluster spacing of 30 m over time

图9 簇间距为20 m时不同基质渗透率下的油藏压力变化曲线Fig. 9 Reservoir pressure as function time under different matrix permeability with cluster spacing of 20 m

图14 基质渗透率为1×10-3 μm2时不同簇间距下的油藏压力变化曲线Fig. 14 Reservoir pressure as function time with different cluster spacing under matrix permeability of 1×10-3 μm2

[1]邹才能，杨智，何东博，等.常规-非常规天然气理论、技术及前景[J].石油勘探与开发，2018，45 （4）：575-587. ZOU Caineng, YANG Zhi, HE Dongbo,et al. Theory, tech‐nology and prospects of conventional and unconventional natural gas [J]. Petroleum Exploration and Development, 2018, 45(4): 575-587. (in Chinese)
[2]黎茂稳，金之钧，董明哲，等.陆相页岩形成演化与页岩油富集机理研究进展[J].石油实验地质，2020， 42（4）：489-505. LI Maowen, JIN Zhijun, DONG Mingzhe, et al. Advances in the basic study of lacustrine shale evolution and shale oil accumulation [J]. Petroleum Geology and Experiment, 2020, 42(4): 489-505. (in Chinese)
[3]XU Jilong, SU Yuliang, WANG Wendong, et al. Stochas‐tic apparent permeability model of shale oil considering geological control [C]// Proceedings of the 8th Unconven‐tional Resources Technology Conference. [S. l.]: Society of Exploration Geophysicists, 2020: URTEC-2020-3319-MS.
[4]DANIEL O, ROBERTO A, KARTHIK S. Material balance forecast of huff-and-puff gas injection in multi-porosity shale oil reservoirs [C]// SPE Canada Unconventional Resources Conferenc. Calgary, Canada: Society of Petro‐leum Engineers, 2018: SPE-189783-MS.
[5]MOHAMMAD K,ALI T B,JESSE R H,et al. Enhanced oil recovery of shale oil: a molecular simulation study [C]//Pro‐ceedings of the 7th Unconventional Resources Technology Conference. Denver, USA: [s. n.], 2019: URTEC 937.
[6]杜洪凌，许江文，李峋，等.新疆油田致密砂砾岩油藏效益开发的发展与深化——地质工程一体化在玛湖地区的实践与思考[J].中国石油勘探，2018，23 （2）：15-26. DU Hongling, XU Jiangwen, LI Xun, et al. Development and deepening of profitable development of tight glutenite oil reservoirs in Xinjiang Oilfield: application of geology-engineering integration in Mahu area and its enlighten‐ment [J]. China Petroleum Exploration, 2018, 23(2): 15-26. (in Chinese)
[7]张治恒，田继军，韩长城，等.吉木萨尔凹陷芦草沟组储层特征及主控因素[J].岩性油气藏，2021，33 （2）：116-126. ZHANG Zhiheng, TIAN Jijun, HAN Changcheng, et al. Reservoir characteristics and main controlling factors of Lucaogou Formation in Jimsar Sag, Jungger Basin [J]. Lithologic Reservoirs, 2021, 33(2): 116-126. (in Chinese)
[8]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）：645-652. SU Zezhong,LIN Jiaen,BAI Mingxing,et al. Inter-well con‐nectivity analysis in carbonate fracture-vuggy reservoir in natural energy development stage [J]. Journal of Shenzhen University Science and Engineering, 2020, 37(6): 645-652. (in Chinese)
[9] DEEN T, DAAL J, TUCKER J. Maximizing well deliverability in the eagle ford shale through flowback operations [C]// SPE Annual Technical Conference and Exhibition. Houston, USA: Society of Petroleum Engi‐neers, 2015: SPE-174831-MS.
[10]LU Sun, LIU Yuetian, CHEN Minfeng, et al. Field and numerical simulation study on stereoscopic network development at later cyclic steam at thick heavy-oil reser‐voir [C]// SPE Asia Pacific Oil and Gas Conference and Exhibition. Jakarta, Indonesia: Society of Petroleum Engi‐neers, 2013: SPE-165921-MS.
[11]陈民锋，王振鹏，尹承哲，等. 低渗透稠油油藏蒸汽吞吐开发储量动用界限[J]. 深圳大学学报理工版， 2019，36（3）：281-288. CHEN Minfeng, WANG Zhenpeng, YIN Chengzhe, et al. Ultimate drainage radius of cyclic steam stimulation in low-permeability heavy oil reservoirs [J]. Journal of Shen‐zhen University Science and Engineering, 2019, 36(3):281-288. (in Chinese)
[12]张辉，杨海军，尹国庆，等.地质工程一体化关键技术在克拉苏构造带高效开发中的应用实践[J].中国石油勘探，2020，25（2）：120-132. ZHANG Hui, YANG Haijun, YIN Guoqing,et al. Applica‐tion practice of key technologies of geology-engineering integration in efficient development in Kelasu structural belt [J]. China Petroleum Exploration, 2020, 25(2): 120-132. (in Chinese)
[13]舒红林，王利芝，尹开贵，等.地质工程一体化实施过程中的页岩气藏地质建模[J].中国石油勘探， 2020，25（2）：84-95. SHU Honglin, WANG Lizhi, YIN Kaigui,et al. Geological modeling of shale gas reservoir during the implementation process of geology-engineering integration [J]. China Petro‐leum Exploration, 2020, 25(2): 84-95. (in Chinese)
[14]ZHU Ziming, FANG Chao, QIAO Rui, et al. Experimental and molecular insights on sieving of hydrocarbon mixtures in niobrara shale [C]// Proceedings of the 7th Unconven‐tional Resources Technology Conference. Denver, USA:Unconventional Resources Technology ConferenceSociety of Exploration Geophysicists, 2019: URTEC-2019-69-MS.
[15]STEFFEN K, HOOD K. Creating economic value from po‐rosity and permeability: integrating geology, reservoir engi‐neering and commercial factors for evaluation of unconven‐tional resource opportunities [C]// International Petroleum Technology Conference. Beijing, China: Society of Petro‐leum Engineers, 2013: IPTC-17031-MS.
[16]CORREIA M G, SCHIOZER D J. Integration of highly permeable thin layers into flow simulation [C]//SPE Euro‐pec featured at 79th EAGE Conference and Exhibition.Paris, France: Society of Petroleum Engineers, 2017: SPE-185875-MS.
[17]谢军，鲜成钢，吴建发，等.长宁国家级页岩气示范区地质工程一体化最优化关键要素实践与认识[J].中国石油勘探，2019，24(2)：174-185. XIE Jun, XIAN Chenggang, WU Jianfa,et al. Optimal key elements of geoengineering integration in Changning National Shale Gas Demonstration Zone [J]. China Petro‐leum Exploration, 2019, 24(2): 174-185. (in Chinese)
[18]KETINENI S P, KALLA S, OPPERT S, et al. Quantitative integration of 4D seismic with reservoir simulation [C]//SPE Annual Technical Conference and Exhibition. Dal‐las, USA: Society of Petroleum Engineers, 2018: SPE-191521-MS.
[19]吴宝成，李建民，邬元月，等.准噶尔盆地吉木萨尔凹陷芦草沟组页岩油上甜点地质工程一体化开发实践[J].中国石油勘探，2019，24（5）：679-690. WU Baocheng, LI Jianmin, WU Yuanyue, et al. Develop‐ment practices of geology-engineering integration on upper sweet spots of Lucaogou Formation shale oil in Jimsar sag, Junggar Basin [J]. China Petroleum Exploration, 2019, 24 (5): 679-690. (in Chinese)
[20]杨智，侯连华，林森虎，等.吉木萨尔凹陷芦草沟组致密油、页岩油地质特征与勘探潜力[J].中国石油勘探，2018，23（4）：76-85. YANG Zhi, HOU Lianhua, LIN Senhu, et al. Geologic characteristics and exploration potential of tight oil and shale oil in Lucaogou Formation in Jimsar sag [J]. China Petroleum Exploration, 2018, 23(4): 76-85. (in Chinese)[21]李虎，许自强，边滢滢，等.基于FracMan的储层裂缝建模技术[J].天然气技术与经济，2014，8（2）：18-21. LI Hu, XU Ziqiang, BIAN Yingying,et al. Fracture modeling based on FracMan [J]. Natural Gas Technology, 2014, 8 (2): 18-21. (in Chinese)

备注

引言

1 研究区概况

2 簇间距优化模型的建立

3 模拟结果讨论与分析

4 结论

期刊信息

备注

引言

1 研究区概况

2 簇间距优化模型的建立

3 模拟结果讨论与分析

4 结 论

期刊信息

4 结论