Logging evaluation of lithofacies and their assemblage under control of sedimentary environment:a case study of the Qingshankou Formation in Gulong sag,Songliao Basin
PANG Xiaojiao1,2, WANG Guiwen1,2, KUANG Lichun1,2, ZHAO Fei1,2, LI Hongbin1,2, HAN Zongyan1,2, BAI Tianyu1,2, LAI Jin1,2
1 National Key Laboratory of Petroleum Resources and Engineering,China University of Petroleum(Beijing),Beijing 102249, China; 2 College of Geosciences,China University of Petroleum,Beijing 102249, China
Abstract The bottom section the Qing 1 and Qing 2 Members of the Qingshankou Formation(Q1~Q2)in the Gulong Sag of Songliao Basin consists of typical high-organic-carbon shales with vast resource potential. The division and characterization of lithofacies play an important role in the evaluation of shale oil sweet spots. It's challenging to recognize lithofacies in a single well. In this study,core photos,thin sections,XRD as well as element data are used to detect the geological characteristic of the reservoir. Besides,LithoScanner and Schlumberger's fullbore formation microimager(FMI)are used to achieve the continuous identification and division of the lithofacies. The result shows that the lithology of the study area mainly consists of four types,including clayey shale,felsic shale,shell limestone,and dolomite. Various-scale laminated structures include millimeter-scale laminations,centimeter-scale bedding,and decimeter-scale structureless laminations. Consequently,ten types of lithofacies were then obtained by coupling lithology and lamina structure. Laminated and bedded clayey shales and laminated and bedded felsic shales are predominant,while massive shell limestone and dolomite mostly occur as thin interlayers,with massive shales occasionally developed. It is clear that the lithofacies assemblages under the control of stratigraphic cycles can be divided into five types. Laminated clayey shale interbedded with layered clayey shale is the most common type in study area. The Qingshankou Formation as a whole was deposited in a freshwater lake basin with a relatively strong reducing environment,with water depth reaching its maximum in the Q7 member and gradually decreasing afterward. There are slight variations in sedimentary environments within different subunits. The predominant lithofacies type varies with water depth,with laminated clayey shales dominating during high-water conditions and bedded felsic shales predominating during low-water conditions. The classification and rapid identification of lithofacies and lithofacies assemblage types provide insight into the shale oil exploration and development and guide for the prediction of shale oil geological sweet spots and engineering sweet spots.
Fund:National Natural Science Foundation of China(No.42002133)and Science and Technology Major Project of PetroChina Ltd.(No.2021ZZ10-01)
Corresponding Authors:
WANG Guiwen,born in 1966,is a professor and Ph.D. supervisor. He is engaged in research of reservoir geology and logging evaluation. E-mail: wanggw@cup.edu.cn.
About author: PANG Xiaojiao,born in 1993,is a Ph.D. candidate. Her research areas are sedimentology and well log evaluation. E-mail: 15010050518@163.com.
Cite this article:
PANG Xiaojiao,WANG Guiwen,KUANG Lichun et al. Logging evaluation of lithofacies and their assemblage under control of sedimentary environment:a case study of the Qingshankou Formation in Gulong sag,Songliao Basin[J]. JOPC, 2023, 25(5): 1156-1175.
PANG Xiaojiao,WANG Guiwen,KUANG Lichun et al. Logging evaluation of lithofacies and their assemblage under control of sedimentary environment:a case study of the Qingshankou Formation in Gulong sag,Songliao Basin[J]. JOPC, 2023, 25(5): 1156-1175.
[1] 白斌,戴朝成,侯秀林,刘显阳,王瑞,杨亮,李士祥,贺君玲,董若婧. 2022. 陆相湖盆页岩自生硅质特征及其油气意义. 石油勘探与开发, 49(5): 896-907. [Bai B,Dai C C,Hou X L,Liu X Y,Wang R,Yang L,Li S X,He J L,Dong R J.2022. Authigenic silica in continental lacustrine shale and its hydrocarbon significance. Petroleum Exploration and Development, 49(5): 896-907] [2] 蔡毅,朱如凯,吴松涛,刘畅. 2022. 泥岩与页岩特征辨析. 地质科技通报, 41(3): 96-107. [Cai Y,Zhu R K,Wu S T,Liu C.2022. Discussion on characteristics of mudstone and shale. Bulletin of Geological Science and Technology, 41(3): 96-107] [3] 陈世悦,张顺,刘惠民,鄢继华. 2017. 湖相深水细粒物质的混合沉积作用探讨. 古地理学报, 19(2): 271-284. [Chen S Y,Zhang S,Liu H M,Yan J H.2017. Discussion on mixing of fine-grained sediments in lacustrine deep water. Journal of Palaeogeography(Chinese Edition), 19(2): 271-284] [4] 崔宝文,蒙启安,白雪峰,梁江平. 2018. 松辽盆地北部石油勘探进展与建议. 大庆石油地质与开发, 37(3): 1-9. [Cui B W,Meng Q A,Bai X F,Liang J P.2018. Petroleum exploration progress and suggestions for North Songliao Basin. Petroleum Geology & Oilfield Development in Daqing, 37(3): 1-9] [5] 崔宝文,张顺,付秀丽,苏杨鑫,金明玉. 2021. 松辽盆地古龙页岩有机层序地层划分及影响因素. 大庆石油地质与开发, 40(5): 13-28. [Cui B W,Zhang S,Fu X L,Su Y X,Jin M Y.2021. Organic sequence stratigraphic division and its influencing factors'analyses for Gulong shale in Songliao Basin. Petroleum Geology & Oilfield Development in Daqing, 40(5): 13-28] [6] 杜锦霞. 2015. 松辽盆地北部青山口组重力流特征研究及其地质意义. 沉积学报, 33(2): 385-393. [Du J X.2015. Characteristics of gravity flow sediment and its geologic significance in Northern Songliao Basin. Acta Sedimentologica Sinica, 33(2): 385-393] [7] 付秀丽,张顺,王辉,王超,杜锦霞,崔坤宁. 2014. 古龙地区青山口组重力流储层沉积特征. 大庆石油地质与开发, 33(5): 56-62. [Fu X L,Zhang S,Wang H,Wang C,Du J X,Cui K N.2014. Sedimentary Characteristics of the Gravity flow reservoirs in Qingshankou Formation of Gulong Area. Petroleum Geology & Oilfield Development in Daqing, 33(5): 56-62] [8] 何文渊,蒙启安,张金友. 2021. 松辽盆地古龙页岩油富集主控因素及分类评价. 大庆石油地质与开发, 40(5): 1-12. [He W Y,Meng Q A,Zhang J Y.2021. Controlling factors and their classification-evaluation of Gulong shale oil enrichment in Songliao Basin. Petroleum Geology & Oilfield Development in Daqing, 40(5): 1-12] [9] 何文渊,柳波,张金友,白龙辉,田善思,迟亚奥. 2023. 松辽盆地古龙页岩油地质特征及关键科学问题探索. 地球科学,48(1):49-62. [He W Y,Liu B,Zhang J Y,Bai L H,Tian S S,Chi Y A.2023. Geological characteristics and key scientific and technological problems of Gulong shale oil in Songliao Basin. Earth Science,48(1):49-62] [10] 胡素云,白斌,陶士振,卞从胜,张天舒,陈燕燕,梁晓伟,王岚,朱如凯,贾进华,潘哲君,李思洋,刘羽汐. 2022. 中国陆相中高成熟度页岩油非均质地质条件与差异富集特征. 石油勘探与开发, 49(2): 224-237. [Hu S Y,Bai B,Tao S Z,Bian C S,Zhang T S,Chen Y Y,Liang X W,Wang L,Zhu R K,Jia J H,Pan Z J,Li S Y,Liu Y X.2022. Heterogeneous geological conditions and differential enrichment of medium and high maturity continental shale oil in China. Petroleum Exploration and Development, 49(2): 224-237] [11] 匡立春,刘合,任义丽,罗凯,史洺宇,苏健,李欣. 2021. 人工智能在石油勘探开发领域的应用现状与发展趋势. 石油勘探与开发, 48(1): 1-11. [Kuang L C,Liu H,Ren Y L,Luo K,Shi M Y,Su J,Li X.2021. Application and development trend of artificial intelligence in petroleum exploration and development. Petroleum Exploration and Development, 48(1): 1-11] [12] 李国欣,朱如凯. 2020. 中国石油非常规油气发展现状、挑战与关注问题. 中国石油勘探, 25(2): 1-13. [Li G X,Zhu R K.2020. Progress,challenges and key issues of unconventional oil and gas development of CNPC. China Petroleum Exploration, 25(2): 1-13] [13] 李丽慧,黄北秀,李严严,邵鹏,高相波,胡瑞林,李晓. 2019. 考虑页岩纹层与裂缝网络的延长组页岩多尺度三维地质结构模型. 工程地质学报, 27(1): 69-79. [Li L H,Huang B X,Li Y Y,Shao P,Gao X B,Hu R L,Li X.2019. Multi-scale 3D modeling of Yanchang shale geological strucutre considering laminas and fracture networks. Journal of Engineering Geology, 27(1): 69-79] [14] 黎茂稳,马晓潇,金之钧,李志明,蒋启贵,吴世强,李政,徐祖新. 2022. 中国海、陆相页岩层系岩相组合多样性与非常规油气勘探意义. 石油与天然气地质, 43(1): 1-25. [Li M W,Ma X X,Jin Z J,Li Z M,Jiang Q G,Wu S Q,Li Z,Xu Z X.2022. Diversity in the lithofacies assemblages of marine and lacustrine shale strata and significance for unconventional petroleum exploration in China. Oil & Gas Geology, 43(1): 1-25] [15] 黎茂稳,马晓潇,蒋启贵,李志明,庞雄奇,张采彤. 2019. 北美海相页岩油形成条件、富集特征与启示. 油气地质与采收率, 26(1): 13-28. [Li M W,Ma X X,Jiang Q G,Li Z M,Pang X Q,Zhang C T.2019. Enlightenment from formation conditions and enrichment characteristics of marine shale oil in North America. Petroleum Geology and Recovery Efficiency, 26(1): 13-28] [16] 李宁,徐彬森,武宏亮,冯周,李雨生,王克文,刘鹏. 2021. 人工智能在测井地层评价中的应用现状及前景. 石油学报, 42(4): 508-522. [Li N,Xu B S,Wu H L,Feng Z,Li Y S,Wang K W,Liu P.2021. Application status and prospects of artificial intelligence in well logging and formation evaluation. Acta Petrolei Sinica, 42(4): 508-522] [17] 柳波,石佳欣,付晓飞,吕延防,孙先达,巩磊,白云风. 2018. 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. 石油勘探与开发, 45(5): 828-838. [Liu B,Shi J X,Fu X F,Lü Y F,Sun X D,Gong L,Bai Y F.2018. 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. Petroleum Exploration and Development, 45(5): 828-838] [18] 柳波,孙嘉慧,张永清,贺君玲,付晓飞,杨亮,邢济麟,赵小青. 2021. 松辽盆地长岭凹陷白垩系青山口组一段页岩油储集空间类型与富集模式. 石油勘探与开发, 48(3): 521-535. [Liu B,Sun J H,Zhang Y Q,He J L,Fu X F,Yang L,Xing J L,Zhao X Q.2021. Reservoir space and enrichment model of shale oil in the first member of Cretaceous Qingshankou Formation in the Changling Sag,southern Songliao Basin,NE China. Petroleum Exploration and Development, 48(3): 521-535] [19] 刘惠民,杨怀宇,张鹏飞,韩同欣,刘鑫金. 2022. 古湖泊水介质条件对混积岩相组合沉积的控制作用: 以渤海湾盆地东营凹陷古近系沙河街组三段为例. 石油与天然气地质, 43(2): 297-306. [Liu H M,Yang H Y,Zhang P F,Han T X,Liu X J.2022. Control effect of paleolacustrine water conditions on mixed lithofacies assemblages: a case study of the Palaeogene Es3,Dongying Sag,Bohai Bay Basin. Oil & Gas Geology, 43(2): 297-306] [20] 刘国恒,黄志龙,姜振学,陈践发,陈常超,高潇玉. 2015. 鄂尔多斯盆地延长组湖相页岩纹层发育特征及储集意义. 天然气地球科学, 26(3): 408-417. [Liu G H,Huang Z L,Jiang Z X,Chen J F,Chen C C,Gao X Y.2015. The characteristic and reservoir significance of lamina in shale from Yanchang Formation of Ordos Basin. Natural Gas Geoscience, 26(3): 408-417] [21] 刘国强. 2021. 非常规油气勘探测井评价技术的挑战与对策. 石油勘探与开发, 48(5): 891-902. [Liu G Q.2021. Challenges and countermeasures of well logging data acquisition technology in unconventional petroleum exploration and development. China Petroleum Exploration, 48(5): 891-902] [22] 刘可禹,刘畅. 2019. “化学—沉积相”分析: 一种研究细粒沉积岩的有效方法. 石油与天然气地质, 40(3): 491-503. [Liu K Y,Liu C.2019. “Chemo-sedimentary facies” analysis: An effective method to study fine-grained sedimentary rocks. Oil & Gas Geology, 40(3): 491-503] [23] 刘忠宝,刘光祥,胡宗全,冯动军,朱彤,边瑞康,姜涛,金治光. 2019. 陆相页岩层系岩相类型、组合特征及其油气勘探意义: 以四川盆地中下侏罗统为例. 天然气工业, 39(12): 10-21. [Liu Z B,Liu G X,Hu Z Q,Feng D J,Zhu T,Bian R K,Jiang T,Jin Z G.2019. Lithofacies types and assemblage features of continental shale strata and their sig-nificance for shale gas exploration: a case study of the Middle and Lower Jurassic strata in the Sichuan Basin. Natural Gas Industry, 39(12): 10-21] [24] 孙龙德,方朝亮,李峰,朱如凯,张云辉,袁选俊,贾爱林,高兴军,苏玲. 2015. 油气勘探开发中的沉积学创新与挑战. 石油勘探与开发, 42(2): 129-136. [Sun L D,Fang C L,Li F,Zhu R K,Zhang Y H,Yuan X J,Jia A L,Gao X J,Su L.2015. Innovations and challenges of sedimentology in oil and gas exploration and development. Petroleum Exploration and Development, 42(2): 129-136] [25] 王超,张柏桥,舒志国,陆亚秋,包汉勇,杨文新,刘超,李凯. 2019. 焦石坝地区五峰组—龙马溪组页岩纹层发育特征及其储集意义. 地球科学, 44(3): 972-982. [Wang C,Zhang B Q,Shu Z G,Lu Y Q,Bao H Y,Yang W X,Liu C,Li K.2019. Shale lamination and its influence on shale reservoir quality of Wufeng Formation-Longmaxi Formation in Jiaoshiba Area. Earth Science, 44(3): 972-982] [26] 王高翔,赵圣贤,陈雷,张鉴,张成林,苑术生,冯江荣,李博,谭秀成. 2022. 层序格架下页岩岩相非均质性及其储层品质差异性: 以四川盆地川南长宁地区五峰组—龙一段页岩为例. 天然气地球科学, 33(10): 1675-1690. [Wang G X,Zhao S X,Chen L,Zhang J,Zhang C L,Yuan S S,Feng J R,Li B,Tan X C.2022. Shale lithofacies heterogeneity and the different of reservoir quality within sequence stratigraphic framework: Case study of Wufeng Formation-lower Longmaxi Formation in Changning area,South Sichuan Basin. Natural Gas Geoscience, 33(10): 1675-1690] [27] 王岚,曾雯婷,夏晓敏,周海燕,毕赫,商斐,周学先. 2019. 松辽盆地齐家—古龙凹陷青山口组黑色页岩岩相类型与沉积环境. 天然气地球科学, 30(8): 1125-1133. [Wang L,Zeng W T,Xia X M,Zhou H Y,Bi H,Shang F,Zhou X X.2019. Study on lithofacies types and sedimentary environment of black shale of Qingshankou Formation in Qijia-Gulong Depression,Songliao Basin. Natural Gas Geoscience, 30(8): 1125-1133] [28] 鄢继华,邓远,蒲秀刚,周立宏,陈世悦,焦玉玺. 2017. 渤海湾盆地沧东凹陷孔二段细粒混合沉积岩特征及控制因素. 石油与天然气地质, 38(1): 98-109. [Yan J H,Deng Y,Pu X G,Zhou L H,Chen S Y,Jiao Y X.2017. Characteristics and controlling factors of fine-grained mixed sedimentary rocks from the 2nd Member of Kongdian Formation in the Cangdong sag,Bohai Bay Basin. Oil & Gas Geology, 38(1): 98-109] [29] 杨万芹,王学军,蒋有录,张顺,王勇,朱德燕,朱德顺. 2018. 湖泊古气候的量化恢复及其对细粒沉积的影响: 以东营凹陷沙四段上亚段—沙三段下亚段为例. 油气地质与采收率, 25(2): 29-36. [Yang W Q,Wang X J,Jiang Y L,Zhang S,Wang Y,Zhu D Y,Zhu D S.2018. Quantitative reconstruction of paleoclimate and its effects on fine-grained lacustrine sediments: a case study of the upper Es4 and lower Es3 in Dongying Sag. Petroleum Geology and Recovery Efficiency, 25(2): 29-36] [30] 杨智,邹才能. 2022. 论常规—非常规油气有序“共生富集”: 兼论常规—非常规油气地质学理论技术. 地质学报, 96(5): 1635-1653. [Yang Z,Zou C N.2022. Orderly “symbiotic enrichment”of conventional & unconventional oil and gas: discussion on theory and technology of conventional & unconventional petroleum geology. Acta Geologica Sinica, 96(5): 1635-1653] [31] 袁选俊,林森虎,刘群,姚泾利,王岚,郭浩,邓秀芹,成大伟. 2015. 湖盆细粒沉积特征与富有机质页岩分布模式:以鄂尔多斯盆地延长组长7油层组为例. 石油勘探与开发, 42(1): 34-43. [Yuan X J,Lin S H,Liu Q,Yao J L,Wang L,Guo H,Deng X Q,Cheng D W.2015. Lacustrine fine-grained sedimentary features and organic-rich shale distribution pattern: a case study of Chang 7 Member of Triassic Yanchang Formation in Ordos Basin,NW China. Petroleum Exploration and Development, 42(1): 34-43] [32] 于兴河,李顺利,孙洪伟. 2022. 碎屑岩沉积从源到汇的“物—坡”耦合效应. 古地理学报, 24(6): 1037-1057. [Yu X H,Li S L,Sun H W.2022. Coupling effect of “mass-slope”from source to sink in clastic rock deposition. Journal of Palaeogeography(Chinese Edition), 24(6): 1037-1057] [33] 张福祥,李国欣,郑新权,吴奇,李志斌,Qi Zhang,王久涛,张玲毓. 2022. 北美后页岩革命时代带来的启示. 中国石油勘探, 27(1): 26-39. [Zhang F X,Li G X,Zheng X Q,Wu Q,Li Z B,Qi Z,Wang J T,Zhang L Y.2022. Enlightenment from the post shale revolution era in North America. China Petroleum Exploration, 27(1): 26-39] [34] 朱如凯,邹才能,袁选俊,吴松涛,崔景伟,王岚,林森虎,苏玲,罗忠. 2017. 中国能源沉积学研究进展与发展战略思考. 沉积学报, 35(5): 1004-1015. [Zhu R K,Zou C N,Yuan X J,Wu S T,Cui J W,Wang L,Lin S H,Su L,Luo Z.2017. Research progress and development strategic thinking on energy sedimentology. Acta Sedimentologica Sinica, 35(5): 1004-1015] [35] 朱筱敏. 2020. 沉积岩石学(第五版).北京: 石油工业出版社. [Zhu X M.2020. Sedimentary Petrology(The Fifth Edition). Beijing:Petroleum Industry Press] [36] 邹才能,潘松圻,荆振华,高金亮,杨智,吴松涛,赵群. 2020. 页岩油气革命及影响. 石油学报, 41(1): 1-12. [Zou C N,Pan S Q,Jing Z H,Gao J L,Yang Z,Wu S T,Zhao Q.2020. Shale oil and gas revolution and its impact. Acta Petrolei Sinica, 41(1): 1-12] [37] 邹才能,杨智,董大忠,赵群,陈振宏,冯有良,李嘉蕊,王小妮. 2022. 非常规源岩层系油气形成分布与前景展望. 地球科学, 47(5): 1517-1533. [Zou C N,Yang Z,Dong D Z,Zhao Q,Chen Z H,Feng Y L,Li J R,Wang X N.2022. Formation,distribution and prospect of unconventional hydrocarbons in source rock strata in China. Earth Science, 47(5): 1517-1533] [38] Dill H G,Ludwig R R,Kathewera A,Mwenelupembe J.2005. A lithofacies terrain model for the Blantyre Region: implications for the interpretation of palaeosavanna depositional systems and for environmental geology and economic geology in southern Malawi. Journal of African Earth Sciences, 41: 341-393. [39] Dong T,Harris N B,Ayranci K,Twemlow C E,Nassichuk B R.2015. Porosity characteristics of the Devonian Horn River shale,Canada: insights from lithofacies classification and shale composition. International Journal Coal Geology,141-142:74-90. [40] Hickey J J,Henk B.2007. Lithofacies summary of the Mississippian Barnett shale,mitchell 2 T.P. Sims well,Wise County,Texas. AAPG Bulletin, 91: 437-443. [41] Hu S Y,Wang K,Wang T S,Yang T,Luo P,Shi S Y,Wang S Y,Su J.2020. Sedimentary environment and organic matter accumulation of Neoproterozoic black shale in the North China Craton: a case study of the Tonian Baishugou Formation in the Luonan area. Palaeogeography,Palaeoclimatology,Palaeoecology,547:109694. [42] Lai J,Wang G W,Fan Q X,Pang X J,Li H B,Zhao F,Li Y H,Zhao X,Zhao Y D,Huang Y Y,Bao M,Qin Z Q,Wang Q Q.2022. Geophysical well log evaluation in the era of unconventional hydrocarbon resources: a review on current status and prospects. Surveys in Geophysics, 43: 913-957. [43] Liu B,Wang H L,Fu X F,Bai Y F,Bai L H,Jia M C,He B.2019. Lithofacies and depositional setting of a highly prospective lacustrine shale oil succession from the Upper Cretaceous Qingshankou Formation in the Gulong sag,northern Songliao Basin,northeast China. AAPG Bulletin, 103(2): 405-432. [44] Liu G H,Liu B,Huang Z L,Chen Z Y,Jiang Z X,Guo X B,Li T W,Chen L.2018. Hydrocarbon distribution pattern and logging identification in lacustrine fine-grained sedimentary rocks of the Permian Lucaogou Formation from the Santanghu Basin. Fuel,222:207-231. [45] Liu C,Liu K,Wang X,Zhu R,Wu L,Xu X.2019. Chemo-sedimentary facies analysis of fine-grained sediment formations: an example from the Lucaogou Fm in the Jimusaer sag,Junggar Basin,NW China. Marine and Petroleum Geology,110:388-402. [46] Loucks R G,Ruppel S C.2007. Mississippian Barnett Shale: lithofacies and depositional setting of a deep-water shale-gas succession in the Fort Worth Basin,Texas. AAPG Bulletin, 91: 579-601. [47] Wu Z Y,Zhao X Z,Wang E Z,Pu X G,Lash G,Han W Z,Zhang W,Feng Y.2021. Sedimentary environment and organic enrichment mechanisms of lacustrine shale: a case study of the Paleogene Shahejie Formation,Qikou sag,Bohai Bay Basin. Palaeogeography,Palaeoclimatology,Palaeoecology,573:10404. [48] Zhang S M,Cao Y C,Liu K Y,Jahren Jens,Xi K L,Zhu R K,Yang T,Cao X,Wang W.2019. Characterization of lacustrine mixed fine-grained sedimentary rocks using coupled chemostratigraphic-petrographic analysis: a case study from a tight oil reservoir in the Jimusar Sag,Junggar Basin. Marine and Petroleum Geology, 99: 453-472.
