Abstract:The lacustrine shale matrix reservoir is the main carrier for shale oil in China, but it is more difficult for fracturing reformation and industrial development compared with interlayered and fractured reservoirs. Therefore, the selection of fracturing layers is of vital importance. Taking the SYY3 well in Sanzhao sag of Songliao Basin as an example, the paper establishes a set of fracturing layer selection method for vertical wells in lacustrine shale matrix reservoir. First, the Type I shale oil reservoir in the 1st member of Qingshankou Formation in SYY3 well is optimized by well logging and interpretation data. Then 6 indicators including electrical property, physical property, oil-gas possibility, source rock lithology, brittleness and fracability of Type I shale oil reservoir are comprehensively analyzed. Finally, the comprehensive ranking of Type I shale oil reservoir is conducted by analytic hierarchy process based on the above 6 indicators, and Nos. 27, 25 and 23 layers are determined as the most favorable shale oil reservoirs. Fracturing and oil testing of the above shale oil reservoirs are performed in SYY3 well, which has achieved a breakthrough in the industrial oil flow of shale oil in Sanzhao sag. It is proved that the method is feasible and effective, and can be applied to the optimization of sweet spot layer and horizontal well deployment of lacustrine matrix shale oil.
黄一鸣, 肖飞, 杨建国, 李士超, 李昂, 姚玉来, 张丽艳. 湖相泥页岩基质储层直井压裂选层方法研究——以松辽盆地三肇凹陷松页油3井为例[J]. 地质与资源, 2022, 31(6): 776-783.
HUANG Yi-ming, XIAO Fei, YANG Jian-guo, LI Shi-chao, LI Ang, YAO Yu-lai, ZHANG Li-yan. FRACTURING LAYER SELECTION FOR VERTICAL WELL IN LACUSTRINE SHALE MATRIX RESERVOIR: A Case Study of SYY3 Well in Sanzhao Sag of Songliao Basin. GEOLOGY AND RESOURCES, 2022, 31(6): 776-783.
张金川,林腊梅,李玉喜,等. 页岩油分类与评价[J]. 地学前缘, 2012,19(5):322-331. Zhang J C, Lin L M, Li Y X, et al. Classification and evaluation of shale oil[J]. Earth Science Frontiers, 2012, 19(5):322-331.
[2]
邹才能,杨智,崔景伟,等. 页岩油形成机制、地质特征及发展对策[J]. 石油勘探与开发,2013,40(1):14-26. Zou C N, Yang Z, Cui J W, et al. Formation mechanism, geological characteristics and development strategy of nonmarine shale oil in China[J]. Petroleum Exploration and Development, 2013, 40(1): 14-26.
[3]
姜在兴,张文昭,梁超,等. 页岩油储层基本特征及评价要素[J]. 石油学报,2014,35(1):184-196. Jiang Z X, Zhang W Z, Liang C, et al. Characteristics and evaluation elements of shale oil reservoir[J]. Acta Petrolei Sinica, 2014, 35(1): 184-196.
[4]
孙超,姚素平. 页岩油储层孔隙发育特征及表征方法[J]. 油气地质与采收率,2019,26(1):153-164. Sun C, Yao S P. Pore structure and characterization methods of shale oil reservoir[J]. Petroleum Geology and Recovery Efficiency, 2019, 26(1):153-164.
[5]
杨雷,金之钧. 全球页岩油发展及展望[J]. 中国石油勘探,2019,24(5):553-559. Yang L, Jin Z J. Global shale oil development and prospects[J]. China Petroleum Exploration, 2019, 24(5):553-559.
[6]
周庆凡,金之钧,杨国丰,等. 美国页岩油勘探开发现状与前景展望[J]. 石油与天然气地质,2019,40(3):469-477. Zhou Q F, Jin Z J, Yang G F, et al. Shale oil exploration and production in the US:Status and outlook[J]. Oil & Gas Geology, 2019, 40(3):469-477.
[7]
边瑞康,武晓玲,包书景,等. 美国页岩油分布规律及成藏特点[J]. 西安石油大学学报(自然科学版),2014,29(1):1-9. Bian R K, Wu X L, Bao S J, et al. Distribution law and reservoir forming characteristics of shale oil in America[J]. Journal of Xi'an Shiyou University (Natural Science Edition), 2014, 29(1):1-9.
[8]
张欣,刘吉余,侯鹏飞. 中国页岩油的形成和分布理论综述[J]. 地质与资源,2019,28(2):165-170. Zhang X, Liu J Y, Hou P F. A Review on the formation and distribution theories of the shale oil in China[J]. Geology and Resources, 2019, 28(2):165-170.
[9]
胡素云,赵文智,侯连华,等. 中国陆相页岩油发展潜力与技术对策[J]. 石油勘探与开发,2020,47(4):819-828. Hu S Y, Zhao W Z, Hou L H, et al. Development potential and technical strategy of continental shale oil in China[J]. Petroleum Exploration and Development, 2020, 47(4):819-828.
[10]
王倩茹,陶士振,关平. 中国陆相盆地页岩油研究及勘探开发进展[J]. 天然气地球科学,2020,31(3):417-427. Wang Q R, Tao S Z, Guan P. Progress in research and exploration & development of shale oil in continental basins in China[J]. Natural Gas Geoscience, 2020, 31(3):417-427.
[11]
卢双舫,薛海涛,王民,等. 页岩油评价中的若干关键问题及研究趋势[J]. 石油学报,2016,37(10):1309-1322. Lu S F, Xue H T, Wang M, et al. Several key issues and research trends in evaluation of shale oil[J]. Acta Petrolei Sinica, 2016, 37(10):1309-1322.
[12]
杨建国,李士超,姚玉来,等. 松辽盆地北部陆相页岩油调查取得重大突破[J]. 地质与资源,2020,29(3):300. Yang J G, Li S C, Yao Y, et al. Significant breakthrough in the continental shale oil survey in northern Songliao Basin[J]. Geology and Resources, 2020, 29(3):300.
[13]
柳波,吕延防,冉清昌,等.松辽盆地北部青山口组页岩油形成地质条件及勘探潜力[J]. 石油与天然气地质,2014,35(2):280-285. Liu B, Lü Y F, Ran Q C, et al. Geological conditions and exploration potential of shale oil in Qingshankou Formation, northern Songliao Basin[J]. Oil & Gas Geology, 2014, 35(2):280-285.
[14]
柳波,石佳欣,付晓飞,等. 陆相泥页岩层系岩相特征与页岩油富集条件——以松辽盆地古龙凹陷白垩系青山口组一段富有机质泥页岩为例[J]. 石油勘探与开发,2018,45(5):828-838. Liu B, Shi J X, Fu X F, et al. Petrological characteristics and shale oil enrichment of lacustrine fine-grained sedimentary system:A case study of organic-rich shale in first member of Cretaceous Qingshankou Formation in Gulong sag, Songliao Basin, NE China[J]. Petroleum Exploration and Development, 2018, 45(5):828-838.
[15]
章钰,孟凡顺. 基于声波测井资料确定泥质砂岩储层孔隙度的方法研究[J]. 内蒙古石油化工,2008(18):82-84. Zhang Y, Meng F S. Method research of porosity argillaceous sandstone based on acoustic logging data[J]. Inner Mongolia Petrochemical Industry, 2008(18):82-84.
[16]
吕斯端,夏宏泉,文晓峰. 延长组致密油储层流体性质测井识别方法[J]. 测井技术,2017,41(2):211-216. Lü S D, Xia H Q, Wen X F. Identification of reservoir fluid properties of tight oil with logs for Yanchang Group[J]. Well Logging Technology, 2017, 41(2):211-216.
[17]
蒋云箭. 裂缝-孔洞型储层测井流体识别新方法[J]. 测井技术, 2017,41(6):676-679. Jiang Y J. New method of fluid type identification for fracture-vug type reservoirs[J]. Well Logging Technology, 2017, 41(6):676-679.
[18]
任颖惠,闫明琦,李闻虚,等. 松辽盆地齐家-古龙凹陷泥页岩特征及成藏期次[J]. 成都理工大学学报(自然科学版),2019,46(6): 660-666. Ren Y H, Yan M Q, Li W X, et al. Study on shale characteristics and reservoir accumulation period in Qijia-Gulong Depression, Songliao Basin, China[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2019, 46(6):660-666.
[19]
王玉华,梁江平,张金友,等. 松辽盆地古龙页岩油资源潜力及勘探方向[J]. 大庆石油地质与开发,2020,39(3):20-34. Wang Y H, Liang J P, Zhang J Y, et al. Resource potential and exploration direction of Gulong shale oil in Songliao Basin[J]. Petroleum Geology & Oilfield Development in Daqing, 2020, 39(3): 20-34.
[20]
杜江民,张小莉,钟高润,等. 致密油烃源岩有机碳含量测井评价方法优选及应用——以鄂尔多斯盆地延长组长7段烃源岩为例[J]. 地球物理学进展,2016,31(6):2526-2533. Du J M, Zhang X L, Zhong G R, et al. Analysis on the optimization and application of well logs identification methods for organic carbon content in source rocks of the tight oil:Illustrated by the example of the source rocks of Chang 7 member of Yanchang Formation in Ordos Basin[J]. Progress in Geophysics, 2016, 31(6):2526-2533.
[21]
陈治军, 张佳琪, 牛凌燕,等. 芳烃参数在湖相烃源岩成熟度评价中的适用性——以银根-额济纳旗盆地中生界烃源岩为例[J]. 石油学报,2020,41(8):928-939. Chen Z J, Zhang J Q, Niu L Y, et al. Applicability of aromatic parameters in maturity evaluation of lacustrine source rocks:A case study of Mesozoic source rocks in Yingen-Ejinaqi Basin[J]. Acta Petrolei Sinica, 2020, 41(8):928-939.
[22]
王晓东,王一航,王永田,等. 利用矿物含量计算砂岩脆性指数——以鄂尔多斯盆地合水地区长6段致密砂岩储层为例[J]. 成都理工大学学报(自然科学版),2018,45(3):367-373. Wang X D, Wang Y H, Wang Y T, et al. A method of computing brittleness index of sandstone by mineral content:A case study of Chang-6 tight sandstone reservoir in Heshui, Ordos Basin, China[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2018, 45(3):367-373.
[23]
夏遵义,马海洋,房堃. 渤海湾盆地沾化凹陷陆相页岩储层岩石力学特征及可压裂性研究[J]. 石油实验地质,2019,41(1):134-141. Xia Z Y, Ma H Y, Fang K. Rock mechanical properties and fracability of continental shale in Zhanhua Sag, Bohai Bay Basin[J]. Petroleum Geology & Experiment, 2019, 41(1):134-141.
[24]
王帅帅,武斌. 层次分析法的研究与应用[J]. 中国科技博览,2015(44):178-179. Wang S S, Wu B. Research and application of analytic hierarchy process[J]. China Science and Technology Review, 2015(44): 178-179. (in Chinese)
[25]
党海龙,崔鹏兴,刘双双,等. 低渗透油藏压裂选层方法研究及应用[J]. 系统工程理论与实践,2018,38(4):1082-1088. Dang H L, Cui P X, Liu S S, et al. Study and application of fracturing selection method in low permeability reservoir[J]. Systems Engineering-Theory & Practice, 2018, 38(4):1082-1088.