FACTORS INFLUENCING GAS PRODUCTION EFFECTIVENESS OF LONGMAXI FORMATION SHALE IN SICHUAN BASIN AND ADJACENT AREAS
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摘要: 我国在四川盆地及周缘下志留统龙马溪组页岩气勘探开发中已取得一些重要发现和突破。JY1HF井、彭页1Hf、DY2HF井、南页1HF、龙参2井、保页1井等一系列针对龙马溪组的钻井及压裂改造都展现了我国南方龙马溪组页岩具备良好的勘探开发前景。本文对比分析了四川盆地及周缘多口页岩气井压后产量与储层地质条件、储层物性、地应力、构造保存及压裂施工规模等影响页岩气产能参数的相关性，总结提出了影响页岩气勘探开发效果的主要控制因素为优质页岩厚度、含气性、脆性矿物含量、孔隙度、地层压力系数和水平应力差异系数，为今后我国南方海相页岩气的高效勘探开发提供了重要的借鉴和指导。Abstract: Many important findings and breakthroughs concerning the exploration and development of Lower Silurian Longmaxi shale gas in Sichuan basin and adjacent areas have been made. A series of drilling wells and fracturing reconstructions, such as Well JY1HF, Pengye1Hf, Well DY2HF, Nanye1HF, Well Longcan2 and Well Baoye1, all show a good prospect of Longmaxi shale gas in exploration and development. Correlational analysis were made between relevant parameters and post-fracture production in several shale gas wells in Sichuan Basin and adjacent areas, such as reservoir geological condition, reservoir physical property, in-situ stress, structure preservation, construction scale of fracturing and so on. It is concluded that the main controlling factors affecting the exploration and development of shale gas are thickness of high quality shales, gas-bearing properties, brittle mineral content, porosity, formation pressure coefficient and horizontal stress difference coefficient, which provides important reference and guidance for the efficient exploration and development of marine shale gas in the future.
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图 1 四川盆地及周缘龙马溪组页岩气井产气效果统计
Figure 1. Gas production effect statistics of longmaxi formation shale gas well in Sichuan Basin and adjacent areas
图 2 龙马溪组优质页岩厚度与产量相关性分析
Figure 2. Correlation between thickness of high quatity shales and gas production in Longmaxi shale formation
图 3 龙马溪组页岩含气量与产量相关性分析
Figure 3. Correlation between gas-bearing properties and gas production in Longmaxi shale formation
图 4 龙马溪组页岩脆性矿物含量与产量相关性
Figure 4. Correlation between brittle mineral content and gas production in Longmaxi shale formation
图 5 龙马溪组页岩孔隙度与产量相关性
Figure 5. Correlation between porosity and gas production in Longmaxi shale formation
图 6 龙马溪组页岩地层压力系数与产量相关性
Figure 6. Correlation between formation pressure coefficient and gas production in Longmaxi shale formation
图 7 龙马溪组页岩水平方向应力差异系数与产量相关性
Figure 7. Correlation between horizontal stress difference coefficient and gas production in Longmaxi shale formation
图 8 龙马溪组页岩单段压裂液用量与平均单段产量相关性
Figure 8. Correlation between single section fracturing fluid volume and average single section production of Longmaxi shale formation
图 9 龙马溪组页岩平均单段加砂量与平均单段产量相关性
Figure 9. Correlation between single section sand amount and average single section production of Longmaxi shale formation
表 1 四川盆地及周缘典型页岩气井地质参数统计表
Table 1. Geological fators of tipical shale gas wells in Sichuan Basin and adjacent areas
井号 优质页岩厚度/m TOC/% Ro/% 总含气量/(m3/t) 脆性矿物含量/% 脆性指数/% 孔隙度/% 渗透率/md 测试产量/万方 JY1HF 38 1.625 2.65 4.64 56.5 52~60 7.70 0.024 20.3 DY2HF 35.5 3.95 2.35 4.48 63.6 49.27 5.81 0.1425 10.5 彭页1HF 24 2.13~4.74 2.39~2.9 2.46 74.1 60 2.87 0.045 2.3 彭页4HF — 3.50 2.0~2.8 — 49.69 — — — 2.68 南页1HF 29 1.98~7.73 2.31~2.77 4.41 62.3 62 5.3 0.0524 0.2 龙页2井 5 1.56 5.50 0.20 35.5 40 3.4 0.0001 — 保页1井 10 2.03 3.34 2.50 57 67.2 0.77 0.42 0.16 濯页1井 25 2.22 2.60 1.04 67 0.62 1.72 0.0031 — 濯页2井 35 2.76 2.92 0.08 63 0.58 1.25 0.0014 — 龙参2井 12 2.76~5.96 2.24~2.57 1.3~1.7 70.60 62.4 2.5 0.151 0.06 JY2HF 40.5 3.76 3.71 5.40 42.2 — 4.39 0.202 34 JY3HF 43.5 2.99 — 4.30 40.9 — 4.03 — 12 JY4HF 39.5 3.67 3.11 5.50 40.5 — 4.9 0.5943 26 JY5HF 43 3.15 3.75 3.56 — — — — — JY6HF 33.4 2.81 — 4.98 72.7 — — — 36 JY7HF 48.2 3.02 — 3.77 71.7 — — — 15 JY8HF 33.58 2.43 — 3.88 65.2 — — — 150 
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表 2 四川盆地及周缘典型页岩气井地层压力系数与产量统计表
Table 2. Formation pressure coefficient and gas production of typical shale gas wells in Sichuan Basin and adjacent areas
井号 压力系数 产量/万方 彭页3HF 0.96 3.2 彭页4HF 0.94 1.7 威201-H1 0.92 1.31 威204 1.96 16.5 宁201-H1 2.03 15 长宁H3-1 2 7.68 阳201-H2 2.2 43 YSH1-1 1.15 3.56 YS108H1-1 2 20.68 威202 1.4 2.75 威201 0.92 0.26 JY1HF 1.45 20.3 DY2HF 1.6 10.5 彭页1HF 0.96 2.3 南页1HF 1.5 0.2 保页1井 1 0.16 龙参2井 1 0.2
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[1] 张金川, 聂海宽, 徐波, 等.四川盆地页岩气成藏地质条件[J].天然气工业, 2008, 28(2): 151~156. http://www.cnki.com.cn/Article/CJFDTOTAL-TRQG200802057.htmZHANG Jinchuan, NIE Haikuan, XU Bo, et al. Geological condition of shale gas accumulation in Sichuan basin[J]. Natural Gas Industry, 2008, 28(2): 151~156. http://www.cnki.com.cn/Article/CJFDTOTAL-TRQG200802057.htm [2] 蒲泊伶, 蒋有录, 王毅, 等.四川盆地下志留统龙马溪组页岩气成藏条件及有利地区分析[J].石油学报, 2010, 31(2): 225~230. doi: 10.7623/syxb201002008PU Boling, JIANG Youlu, WANG Yi, et al. Reservoir-forming conditions and favorable exploration zones of shale gas in Lower Silurian Longmaxi Formation of Sichuan Basin[J]. Acta Petrolei Sinica, 2010, 31(2): 225~230. doi: 10.7623/syxb201002008 [3] 聂海宽, 张金川.页岩气储层类型和特征研究——以四川盆地及其周缘下古生界为例[J].石油实验地质, 2011, 33(3): 219~225. doi: 10.11781/sysydz201103219NIE Haikuan, ZHANG Jinchuan. Types and characteristics of shale gas reservoir: a case study of Lower Paleozoic in and around Sichuan Basin[J]. Petroleum Geology & Experiment, 2011, 33(3): 219~225. doi: 10.11781/sysydz201103219 [4] 聂海宽, 张金川.页岩气聚集条件及含气量计算——以四川盆地及其周缘下古生界为例[J].地质学报, 2012, 86(2): 349~361. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201202014.htmNIE Haikuan, ZHANG Jinchuan. Shale gas accumulation conditions and gas content calculation: a case study of Sichuan Basin and its periphery in the Lower Paleozoic[J]. Acta Geologica Sinica, 2012, 86(2): 349~361. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201202014.htm [5] 梁超, 姜在兴, 杨镱婷, 等.四川盆地五峰组—龙马溪组页岩岩相及储集空间特征[J].石油勘探与开发, 2012, 39(6): 691~698. http://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201206007.htmLIANG Chao, JIANG Zaixing, YANG Yiting, et al. Characteristics of shale lithofacies and reservoir space of the Wufeng-Longmaxi Formation, Sichuan Basin[J]. Petroleum Exploration and Development, 2012, 39(6): 691~698. http://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201206007.htm [6] 郭旭升, 郭彤楼, 魏志红, 等.中国南方页岩气勘探评价的几点思考[J].中国工程科学, 2012, 14(6): 101~105, 112. http://www.cnki.com.cn/Article/CJFDTOTAL-GCKX201206013.htmGUO Xusheng, GUO Tonglou, WEI Zhihong, et al. Thoughts on shale gas exploration in southern China[J]. Engineering Sciences, 2012, 14(6): 101~105, 112. http://www.cnki.com.cn/Article/CJFDTOTAL-GCKX201206013.htm [7] 郭旭升.南方海相页岩气"二元富集"规律——四川盆地及周缘龙马溪组页岩气勘探实践认识[J].地质学报, 2014, 88(7): 1209~1218. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201407001.htmGUO Xusheng. Rules of two-factor enrichiment for marine shale gas in southern china-understanding from the longmaxi formation shale gas in Sichuan basin and its surrounding area[J]. Acta Geologica Sinica, 2014, 88(7): 1209~1218. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201407001.htm [8] 郭彤楼, 刘若冰.复杂构造区高演化程度海相页岩气勘探突破的启示——以四川盆地东部盆缘JY1井为例[J].天然气地球科学, 2013, 24(4): 643~651. http://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201304000.htmGUO Tonglou, LIU Ruobing. Implications from marine shale gas exploration breakthrough in complicated structural area at high thermal stage: taking Longmaxi Formation in well JY1 as an example[J]. Natural Gas Geoscience, 2013, 24(4): 643~651. http://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201304000.htm [9] 郭彤楼, 张汉荣.四川盆地焦石坝页岩气田形成与富集高产模式[J].石油勘探与开发, 2014, 41(1): 28~36. doi: 10.11698/PED.2014.01.03GUO Tonglou, ZHANG Hanrong. Formation and enrichment mode of Jiaoshiba shale gas field, Sichuan Basin[J]. Petroleum Exploration and Development, 2014, 41(1): 28~36. doi: 10.11698/PED.2014.01.03 [10] 周德华, 焦方正, 贾长贵, 等. JY1HF页岩气水平井大型分段压裂技术[J].石油钻探技术, 2014, 42(1): 75~80. http://www.cnki.com.cn/Article/CJFDTOTAL-SYZT201401017.htmZHOU Dehua, JIAO Fangzheng, JIA Changgui, et al. Large-scale multi-stage hydraulic fracturing technology for shale gas horizontal well JY1HF[J]. Petroleum Drilling Techniques, 2014, 42(1): 75~80. http://www.cnki.com.cn/Article/CJFDTOTAL-SYZT201401017.htm [11] 贾长贵, 路保平, 蒋廷学, 等. DY2 HF深层页岩气水平井分段压裂技术[J].石油钻探技术, 2014, 42(2): 85~90. http://www.cnki.com.cn/Article/CJFDTOTAL-SYZT201402019.htmJIA Changgui, LU Baoping, JIANG Tingxue, et al. Multi-stage horizontal well fracturing technology in deep shale gas well DY2 HF[J]. Petroleum Drilling Techniques, 2014, 42(2): 85~90. http://www.cnki.com.cn/Article/CJFDTOTAL-SYZT201402019.htm [12] 杨怀成, 毛国扬, 宋其仓, 等.彭页HF-1井页岩气藏大型压裂工艺技术[J].西南石油大学学报(自然科学版), 2014, 36(5): 117~122. doi: 10.11885/j.issn.1674-5086.2012.08.30.04YANG Huaicheng, MAO Guoyang, SONG Qicang, et al. Large scale fracturing technology of well Pengye HF-1 shale gas[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2014, 36(5): 117~122. doi: 10.11885/j.issn.1674-5086.2012.08.30.04 [13] 刘红磊, 韩倩, 李颖, 等.彭水区块水平井清水连续加砂压裂技术[J].石油钻探技术, 2015, 43(1): 13~19. http://www.cnki.com.cn/Article/CJFDTOTAL-SYZT201501003.htmLIU Honglei, HAN Qian, LI Ying, et al. Water fracturing with continuous sand for horizontal wells in the Pengshui Block[J]. Petroleum Drilling Techniques, 2015, 43(1): 13~19. http://www.cnki.com.cn/Article/CJFDTOTAL-SYZT201501003.htm [14] 叶登胜, 李建忠, 朱炬辉, 等.四川盆地页岩气水平井压裂实践与展望[J].钻采工艺, 2014, 37(3): 42~44. http://www.cnki.com.cn/Article/CJFDTOTAL-ZCGY201403014.htmYE Dengsheng, LI Jianzhong, ZHU Juhui, et al. Practice and prospect of horizontal well fracturing technology in Sichuan shale gas reservoir[J]. Drilling & Production Technology, 2014, 37(3): 42~44. http://www.cnki.com.cn/Article/CJFDTOTAL-ZCGY201403014.htm [15] 钱斌, 张俊成, 朱炬辉, 等.四川盆地长宁地区页岩气水平井组"拉链式"压裂实践[J].天然气工业, 2015, 35(1): 81~84. http://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201501013.htmQIAN Bin, ZHANG Juncheng, ZHU Juhui, et al. 2015. Application of zipper fracturing of horizontal cluster wells in the Changning shale gas pilot zone, Sichuan Basin[J]. Natural Gas Industry, 2015, 35(1): 81~84. http://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201501013.htm [16] 颜丹平, 汪新文, 刘友元.川鄂湘边区褶皱构造样式及其成因机制分析[J].现代地质, 2000, 14(1): 37~43. http://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ200001007.htmYAN Danping, WANG Xinwen, LIU Youyuan. Analysis of fold style and it's formation mechanism in the area of boundary among Sichuan, Hubei and Hunan[J]. Geoscience, 2000, 14(1): 37~43. http://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ200001007.htm [17] 梁狄刚, 郭彤楼, 边立曾, 等.中国南方海相生烃成藏研究的若干新进展(三):南方四套区域性海相烃源岩的沉积相及发育的控制因素[J].海相油气地质, 2009, 14(2): 1~19. http://www.cnki.com.cn/Article/CJFDTOTAL-HXYQ200902003.htmLIANG Digang, GUO Tonglou, BIAN Lizeng, et al. Some progresses on studies of hydrocarbon generation and accumulation in marine sedimentary regions, Southern China (Part 3): controlling factors on the sedimentary facies and development of palaeozoic marine source rocks[J]. Marine Origin Petroleum Geology, 2009, 14(2): 1~19. http://www.cnki.com.cn/Article/CJFDTOTAL-HXYQ200902003.htm [18] 聂海宽, 张金川, 包书景, 等.四川盆地及其周缘上奥陶统-下志留统页岩气聚集条件[J].石油与天然气地质, 2012, 33(3): 335~345. doi: 10.11743/ogg20120302NIE Haikuan, ZHANG Jinchuan, BAO Shujing, et al. Shale gas accumulation conditions of the Upper Ordovician-Lower Silurian in Sichuan Basin and its periphery[J]. Oil & Gas Geology, 2012, 33(3): 335~345. doi: 10.11743/ogg20120302 [19] 谭淋耘, 徐铫, 李大华, 等.渝东南地区五峰组-龙马溪组页岩气成藏地质条件与有利区预测[J].地质学报, 2015, 89(7): 1308~1317. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201507013.htmTAN Linyun, XU Yao, LI Dahua, et al. Geological condition of shale gas accumulation and favorable area prediction for the Wufeng-Longmaxi Formations in Southeastern Chongqing[J]. Acta Geologica Sinica, 2015, 89(7): 1308~1317. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201507013.htm [20] 孟庆峰, 侯贵廷.页岩气成藏地质条件及中国上扬子区页岩气潜力[J].油气地质与采收率, 2012, 19(1): 11~14. http://www.cnki.com.cn/Article/CJFDTOTAL-YQCS201201008.htmMENG Qingfeng, HOU Guiting. Geological controls on shale gas play and potential of shale gas resource in Upper Yangtze region, China[J]. Petroleum Geology and Recovery Efficiency, 2012, 19(1): 11~14. http://www.cnki.com.cn/Article/CJFDTOTAL-YQCS201201008.htm [21] 王祥, 刘玉华, 张敏, 等.页岩气形成条件及成藏影响因素研究[J].天然气地球科学, 2010, 21(2): 350~356. http://www.cnki.com.cn/Article/CJFDTOTAL-JHSK201004028.htmWANG Xiang, LIU Yuhua, ZHANG Min, et al. Conditions of formation and accumulation for shale gas[J]. Natural Gas Geoscience, 2010, 21(2): 350~356. http://www.cnki.com.cn/Article/CJFDTOTAL-JHSK201004028.htm [22] 聂海宽, 唐玄, 边瑞康.页岩气成藏控制因素及中国南方页岩气发育有利区预测[J].石油学报, 2009, 30(4): 484~491. doi: 10.7623/syxb200904002NIE Haikuan, TANG Xuan, BIAN Ruikang. Controlling factors for shale gas accumulation and prediction of potential development area in shale gas reservoir of South China[J]. Acta Petrolei Sinica, 2009, 30(4): 484~491. doi: 10.7623/syxb200904002 [23] Mayerhofer M J, Lolon E, Warpinski N R, et al. What is stimulated rock volume?[A]. SPE Shale Gas Production Conference[C].Fort Worth, Texas, USA: Society of Petroleum Engineers, 2008. [24] Gale J, Holder J. Natural fractures in shales and their importance for gas production[A]. Tectonics Studies Group Annual Meeting[C]. La Roche-en-Ardenne, Belgium, 2008. [25] 岳喜伟, 戴俊生, 王珂.岩石力学参数对裂缝发育程度的影响[J].地质力学学报, 2014, 20(4): 372~378. http://kns.cnki.net/KCMS/detail/detail.aspx?dbcode=CJFQ&dbname=CJFDLAST2015&filename=DZLX201404005&v=MzAzODdTN0RoMVQzcVRyV00xRnJDVVJMMmZidVJtRnlua1Y3clBJVGZIZHJHNEg5WE1xNDlGWVlSOGVYMUx1eFk=YUE Xiwei, DAI Junsheng, WANG Ke. Influence of rock mechanics parameters on development of fracture[J]. Journal of Geomechanics, 2014, 20(4): 372~378. http://kns.cnki.net/KCMS/detail/detail.aspx?dbcode=CJFQ&dbname=CJFDLAST2015&filename=DZLX201404005&v=MzAzODdTN0RoMVQzcVRyV00xRnJDVVJMMmZidVJtRnlua1Y3clBJVGZIZHJHNEg5WE1xNDlGWVlSOGVYMUx1eFk= [26] 张旭, 蒋廷学, 贾长贵, 等.页岩气储层水力压裂物理模拟试验研究[J].石油钻探技术, 2013, 41(2): 70~74. http://cdmd.cnki.com.cn/Article/CDMD-10491-1014340965.htmZHANG Xu, JIANG Tingxue, JIA Changgui, et al. Physical simulation of hydraulic fracturing of shale gas reservoir[J]. Petroleum Drilling Techniques, 2013, 41(2): 70~74. http://cdmd.cnki.com.cn/Article/CDMD-10491-1014340965.htm [27] 陈朝伟, 杨向同, 王刚, 等.石油工程水平最大地应力分析技术[J].地质力学学报, 2014, 20(1): 94~102. http://kns.cnki.net/KCMS/detail/detail.aspx?dbcode=CJFQ&dbname=CJFD2014&filename=DZLX201401009&v=MTg3MjRkckc0SDlYTXJvOUZiWVI4ZVgxTHV4WVM3RGgxVDNxVHJXTTFGckNVUkwyZmJ1Um1GeW5rVkx6TElUZkg=CHEN Zhaowei, YANG Xiangtong, WANG Gang, et al. Analytical technique of horizontal maximum principal stress for petroleum engineering[J]. Journal of Geomechanics, 2014, 20(1): 94~102. http://kns.cnki.net/KCMS/detail/detail.aspx?dbcode=CJFQ&dbname=CJFD2014&filename=DZLX201401009&v=MTg3MjRkckc0SDlYTXJvOUZiWVI4ZVgxTHV4WVM3RGgxVDNxVHJXTTFGckNVUkwyZmJ1Um1GeW5rVkx6TElUZkg= -
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