Lithologic Reservoirs ›› 2021, Vol. 33 ›› Issue (6): 114-123.doi: 10.12108/yxyqc.20210612

• PETROLEUM GEOLOGY • Previous Articles     Next Articles

Characteristics of Cretaceous source rocks in northern Guaizihu Sag, Yingen-Ejinaqi Basin

PAN Binfeng1, GAO Yuequan1, PAN Tao1, LI Zongxian2, WANG Zhiwei1, QIU Wenbo1, FENG Rong1   

  1. 1. Oil and Gas Exploration Company, Yanchang Petroleum(Group) Co., Ltd., Yan'an 716000, Shaanxi, China;
    2. Beijing UltraDo Resources Technology Inc., Beijing 100098, China
  • Received:2021-04-30 Revised:2021-06-13 Online:2021-12-01 Published:2021-11-25

PDF (PC)

244

Abstract: In order to study the characteristics of source rocks and evaluate their hydrocarbon generating potential in northern Guaizihu Sag, geochemical tests of mudstone in the whole section of exploration wells were carried out to explore the differential genesis of source rocks in the northern and central parts, and oil source conditions for hydrocarbon accumulation in the study area were evaluated. The results show that: (1) the potential source rocks in the study area are mainly developed in Cretaceous Suhongtu Formation, the third and second members of Bayingebi Formation. The abundance of organic matter in mudstone is generally low, but there are “sweet spots” in some well sections. The type of organic matter is mainly type Ⅲ, and the source rocks have reached mature to over-mature thermal evolution stage. (2) Compared with the central part of Guaizihu Sag, the conditions of source rocks in the northern part are obviously worse, which may be controlled by the differences in the formation environment and source input caused by the differences in boundary fault activity and sag structure. (3) The lower limit of TOC content of effective source rocks in the study area is greater than 1.35%. The effective source rock area in well area W1-W2 is relatively large, and the area of source rocks with thickness greater than 20 m is about 133 km2. The discovery of gas-bearing layer and reservoir bitumen in well W2 shows that the source rocks in the study area have certain hydrocarbon generation potential and has a history of hydrocarbon accumulation. The research results can provide a basis for the next exploration decision-making in Guaizihu Sag.

Key words: hydrocarbon source rock characteristics, hydrocarbon generation potential, Cretaceous, northern Guaizihu Sag, Yingen-Ejinaqi Basin

CLC Number: 

  • TE122.1
[1] 陈灿, 魏美涛, 张文豪. 银额盆地拐子湖凹陷压裂技术攻关及现场实践, 石油化工应用, 2018, 37(10):85-89. CHEN C, WEI M T, ZHANG W H. Research and field practice of fracturing technology in Guizihu Sag of Yiner Basin. Petrochemical Industry Application, 2018, 37(10):85-89.
[2] YANG R Z, ZHAO C Y. Tectonic characteristics and favorable exploration regions of Guaizihu Sag in Yin'e Basin. Earth and Environmental Science, 2019, 360(1):1-6.
[3] 侯云超, 樊太亮, 王宏语, 等. 银额盆地拐子湖凹陷深层优质储层特征及形成机理. 沉积学报, 2019, 37(4):758-767. HOU Y C, FAN T L, WANG H Y, et al. Characteristics and formation mechanism of a high-quality reservoir in the deep strata of the Guaizihu Depression, Yin-E Basin. Acta Sedimentologica Sinica, 2019, 37(4):758-767.
[4] 李红磊, 周勇水, 常俊合, 等. 银额盆地拐参1井烃源岩生烃潜力评价. 重庆:第十六届全国有机地球化学学术会议论文摘要集, 2019. LI H L, ZHOU Y S, CANG J H, et al. Evaluation of hydrocarbon generation potential of source rocks in Guican 1 well in Yiner Basin. Chongqing:Abstracts of Conference Proceedings of the 16 th National Meeting on Organic Geochemistry in China, 2019.
[5] 周迅, 吴莎. 内蒙拐子湖凹陷基底潜山缝洞型油藏开发技术探讨. 中国石油和化工标准与质量, 2019, 39(22):249-250. ZHOU X, WU S. Discussion on development technology of fractured vuggy reservoir in basement buried hill of Guaizihu Sag, Inner Mongolia. China Petroleum and Chemical Standard and Quality, 2019, 39(22):249-250.
[6] 邱文波. 银-额盆地拐子湖凹陷北洼白垩系烃源岩评价. 石化技术, 2019, 26(10):182-183. QIU W B. Evaluation of source rocks of the northern subsag of the Guizihu Sag, Yin-E Basin. Petrochemical Industry Technology, 2019, 26(10):182-183.
[7] 蒋航, 曾德铭, 刘护创, 等. 银额盆地拐子湖凹陷北部烃源岩特征及控制因素. 特种油气藏, 2020, 27(4):33-40. JIANG H, ZENG D M, LIU H C, et al. Source-rock characterization and main-controlling factors in the northern Guaizihu Depression of Yin'e Basin. Special Oil & Gas Reservoirs, 2020, 27(4):33-40.
[8] 张斌, 王宏语, 樊太亮, 等. 银额盆地拐子湖凹陷断陷早期沉积充填演化. 东北石油大学学报, 2018, 42(4):15-26. ZHANG B, WANG H Y, FAN T L, et al. Tectonic evolution and sedimentary filling characteristics during the early rifting phase of Guaizihu depression, Yine Basin. Journal of Northeast Petroleum University, 2018, 42(4):15-26.
[9] 杨润泽, 王宏语, 樊太亮, 等. 银额盆地拐子湖凹陷构造特征及其对古地貌演化的控制. 大庆石油地质与开发, 2020, 39(6):39-51. YANG R Z, WANG H Y, FAN T L, et al. Structural characteristics and their controlling effects over the paleogeomorphic evolution for Guaizihu Sag in Yin'e Basin. Petroleum Geology & Oilfield Development in Daqing, 2020, 39(6):39-51.
[10] 中国石油天然气总公司. SY/T 5735-1995陆相烃源岩地球化学评价方法. 北京:石油工业出版社, 1996. China National Petroleum Company. SY/T 5735-1995 Geochemical evaluation standard of terrestrial hydrocarbon source rock. Beijing:Petroleum Industry Press, 1996.
[11] 邬立言, 顾信章. 热解技术在我国生油岩研究中的应用. 石油学报, 1986, 7(2):13-19. WU L Y, GU X Z. The application of pyrolysis technique in source rock research. Acta Petrolei Sinica, 1986, 7(2):13-19.
[12] 侯读杰, 张林晔. 实用油气地球化学图鉴. 北京:油工业出版社, 2003. HOU D J, ZHANG L Y. Practical oil and gas geochemical map. Beijing:Petroleum Industry Press, 2003.
[13] 黄彦杰, 白玉彬, 孙兵华, 等. 鄂尔多斯盆地富县地区延长组长7烃源岩特征及评价. 岩性油气藏, 2020, 32(1):66-75. HUANG Y J, BAI Y B, SUN B H, et al. Characteristics and evaluation of Chang 7 source rock of Yanchang Formation in Fuxian area, Ordos Basin. Lithologic Reservoirs, 2020, 32(1):66-75.
[14] 张振苓, 邬立言, 舒念祖. 烃源岩热解分析参数Tmax 异常的原因. 石油勘探与开发, 2006, 33(1):72-75. ZHA NG Z L, WU L Y, SHU N Z. Cause analysis of abnormal Tmax values on Rock-Eval pyrolysis. Petroleum Exploration and Development, 2006, 33(1):72-75.
[15] LAI H F, LI M J,LIU J G, et al. Source rock assessment within a sequence stratigraphic framework of the Yogou Formation in the Termit Basin, Niger. Geological Journal, 2019, 55(4):1-22.
[16] 卢双航, 张敏. 油气地球化学. 北京:石油工业出版社, 2018:174-191.LU S F, ZHANG M. Oil and gas geochemical. Beijing:Petroleum Industry Press, 2018:174-225.
[17] 陈治军, 马芳侠, 肖刚, 等. 银额盆地哈日凹陷巴音戈壁组精细油源对比. 石油与天然气地质, 2019, 40(4):900-916. CHEN Z J, MA F X, XIAO G, et al. Oil-sources rock correlation of Bayingebi Formation in Hari Sag, Yingen-Ejinaqi Basin. Oil & Gas Geology, 2019, 40(4):900-916.
[18] 刘晓翔. 银额盆地居延海坳陷石炭-二叠系泥页岩特征及勘探前景. 北京:中国石油大学(北京), 2018. LIU X X. The characteristics and exploration prospects of the Carboniferous-Permian mud shale in Juyanhai Depression, Yin'e Basin. Beijing:China University of Petroleum(Beijing), 2018.
[19] 孔庆芬. 鄂尔多斯盆地延长组烃源岩有机显微组分特征. 新疆石油地质, 2007, 28(4):163-166. KONG Q F. The organic maceral characteristic of Yanchang source rock in Ordos Basin. Xinjiang Petroleum Geology, 2007, 28(4):163-166.
[20] CZOCHANSKA Z, GILBERT T D, PHILP R P, et al. Geochemical application of sterane and triterpane biomarkers to a description of oils from the Taranaki Basin in New Zealand. Organic Geochemistry, 1988, 12(2):123-135.
[21] PETERS K E, CLARK M E, DAS G U, et al. Recognition of an infra-Cambrian source rock based on biomarkers in the Baghewala-1 oil, India. AAPG Bulletin, 1995, 79(10):1481-1494.
[22] 马立元, 尹航, 陈纯芳, 等. 鄂尔多斯盆地红河油田原油地球化学特征及油源分析. 沉积学报, 2015, 33(2):416-425. MA L Y, YIN H, CHEN C F, et al. Research of geochemistry characteristics and source of crude oils from the Honghe Oilfield in the Ordos Basin. Acta Sedimentologica Sinica, 2015, 33(2):416-425.
[23] 山鑫杰, 王飞宇, 刘念, 等. 二连盆地呼仁布其凹陷南洼下白垩统烃源岩分布特征与油源分析. 岩性油气藏, 2020, 32(3):104-114. SHAN X J, WANG F Y, LIU N, et al. Distribution characteristics and oil-source analysis of the Lower Cretaceous source rock in southern trough of Hurenbuqi Sag, Erlian Basin. Lithologic Reservoirs, 2020, 32(3):104-114.
[24] 蒋中发, 丁修建, 王忠泉, 等. 吉木萨尔凹陷二叠系芦草沟组烃源岩沉积古环境. 岩性油气藏, 2020, 32(6):109-119. JIANG Z F, DING X J, WANG Z Q, et al. Sedimentary paleoenvironment of source rocks of Permian Lucaogou Formation in Jimsar Sag. Lithologic Reservoirs, 2020, 32(6):109-119.
[25] 王萍, 向连格, 姜海健, 等. 银根-额济纳旗盆地拐子湖凹陷白垩系油源对比分析. 石油实验地质, 2019, 41(3):428-434. WANG P, XIANG L G, JIANG H J, et al. Cretaceous oil-source correlation in Guaizihu Sag,Yin'gen-E'ji'naqi Basin. Petroleum Geology & Experiment, 2019, 41(3):428-434.
[26] 杨福林, 云露, 王铁冠, 等. 塔里木盆地寒武系源岩地化特征及与典型海相原油对比.石油与天然气地质, 2017, 38(5):851-861. YANG F L, YUN L, WANG T G, et al. Geochemical characteristics of Cambrian source rocks in the Tarim Basin and oil-source correlation with typical marine crude oil. Oil & Gas Geology, 2017, 38(5):851-861.
[27] 钟红利, 吴雨风, 闪晨晨. 北大巴山地区鲁家坪组页岩地球化学特征及勘探意义. 岩性油气藏, 2020, 32(5):13-22. ZHONG H L, WU Y F, SHAN C C. Geochemical characteristics and exploration significance of shale of Lujiaping Formation in northern Dabashan area. Lithologic Reservoirs, 2020, 32(5):13-22.
[28] 朱连丰. 银根-额济纳旗盆地主力烃源岩生烃热模拟实验研究. 石油实验地质, 2019, 41(5):731-745. ZHU L F. Pyrolysis hydrocarbon generation of the main source rock in Yin'gen-E'ji'naqi Basin. Petroleum Geology & Experiment, 2019, 41(5):731-745.
[29] 刘舵, 谢春勤, 陈治军, 等. 正构烷烃分布特征在确定烃源岩生源构成应用中的有效性. 断块油气田, 2019, 26(1):42-47. LIU D, XIE C Q, CHEN Z J, et al. Effectiveness of the n-alkanes distribution on determining parent material composition of hydrocarbon source rock. Fault-Block Oil & Gas Field, 2019, 26(1):42-47.
[30] 袁媛, 杜克锋, 葛云锦, 等. 鄂尔多斯盆地甘泉-富县地区长7烃源岩地球化学特征. 岩性油气藏, 2018, 30(1):39-45. YUAN Y, DU K F, GE Y J, et al. Geochemistry of hydrocarbon source rocks of Chang 7 in Ganquan-Fuxian area, Ordos Basin. Lithologic Reservoirs, 2018, 30(1):39-45.
[31] 朱光有, 金强, 王锐. 有效烃源岩的识别方法. 石油大学学报(自然科学版), 2003, 27(2):6-9. ZHU G Y, JIN J, WANG R. Identification methods for efficient source rocks. Journal of the University of Petroleum, China(Edition of Natural Science), 2003, 27(2):6-9.
[32] 庞雄奇. 排烃门限控油气理论与应用. 北京:石油工业出版社, 1995. PANG X Q. Theory and application of hydrocarbon controlled by expulsion threshold. Beijing:Petroleum Industry Press, 1995.
[33] PANG B, CHEN J Q, PANG X Q, et al. Possible new method to discriminate effective source rocks in petroliferous basins:A case study in the Tazhong area, Tarim Basin. Energy Exploration & Exploitation, 2019, 38(2):417-433.
[34] 赵贤正, 柳广弟, 金凤鸣, 等. 小型断陷湖盆有效烃源岩分布特征与分布模式:以二连盆地下白垩统为例. 石油学报, 2015, 36(6):641-652. ZHAO X Z, LIU G D, JIN F M, et al. Distribution features and pattern of effective source rock in small faulted lacustrine basin:A case study of the Lower Cretaceous in Erlian Basin. Acta Petrolei Sinica, 2015, 36(6):641-652.
[35] SI W, HOU D J, WU P, et al. Geochemical characteristics of Lower Cretaceous lacustrine organic matter in the southern sag of the Wuliyasitai Depression, Erlian Basin, China. Marine and Petroleum Geology, 2020, 118:1-18.
[36] 凡元芳. 储层沥青的研究进展及存在问题. 石油地质与工程, 2009, 23(6):35-38. FAN Y F. Research progress and existing problems of reservoir bitumen. Petroleum Geology and Engineering, 2009, 23(6):35-38.
[37] 谢增业, 李志生, 国建英, 等. 烃源岩和储层中沥青形成演化实验模拟及其意义. 天然气地球科学, 2016, 27(8):1489-1499. XIE Z Y, LI Z S, GUO J Y, et al. Experimental simulation and significance on bitumen formation in source rock and reservoir. Natural Gas Geoscience, 2016, 27(8):1489-1499.
[38] 郝彬, 胡素云, 黄士鹏, 等. 四川盆地磨溪地区龙王庙组储层沥青的地球化学特征及其意义.现代地质, 2016, 30(3):614-626. HAO B, HU S Y, HUANG S P, et al. Geochemical characteristics and its significance of reservoir bitumen of Longwangmiao Formation in Moxi area, Sichuan Basin. Geoscience, 2016, 30(3):614-626.
[1] QU Weihua, TIAN Ye, DONG Changchun, GUO Xiaobo, LI Lili, LIN Siya, XUE Song, YANG Shihe. Characteristics of Cretaceous source rocks and their controlling effect on hydrocarbon accumulation in Dehui Fault Depression，Songliao Basin [J]. Lithologic Reservoirs, 2024, 36(6): 122-134.
[2] XIAO Boya. Characteristics and favorable zone distribution of tuff reservoirt of Cretaceous in A’nan sag，Erlian Basin [J]. Lithologic Reservoirs, 2024, 36(6): 135-148.
[3] WANG Hongxing, HAN Shiwen, HU Jia, PAN Zhihao. Prediction and main controlling factors of tuff reservoirs of Cretaceous Huoshiling Formation in Dehui fault depression，Songliao Basin [J]. Lithologic Reservoirs, 2024, 36(5): 35-45.
[4] YANG Haibo, FENG Dehao, YANG Xiaoyi, GUO Wenjian, HAN Yang, SU Jiajia, YANG Huang, LIU Chenglin. Characteristics of source rocks and thermal evolution simulation of Permian Pingdiquan Formation in Dongdaohaizi Sag，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(5): 156-166.
[5] YANG Weihua. Hydrocarbon accumulation model and main controlling factors of tight oil of the fourth member of Cretaceous Yingcheng Formation in Shuangcheng fault depression，Songliao Basin [J]. Lithologic Reservoirs, 2024, 36(4): 25-34.
[6] ZHOU Hongfeng, WU Haihong, YANG Yuxi, XIANG Hongying, GAO Jihong, HE Haowen, ZHAO Xu. Sedimentary characteristics of fan delta front of the fourth member of Cretaceous A’ershan Formation in Bayindulan Sag，Erlian Basin [J]. Lithologic Reservoirs, 2024, 36(4): 85-97.
[7] TIAN Ya, LI Junhui, CHEN Fangju, LI Yue, LIU Huaye, ZOU Yue, ZHANG Xiaoyang. Tight reservoir characteristics and favorable areas prediction of Lower Cretaceous Nantun Formation in central fault depression zone of Hailar Basin [J]. Lithologic Reservoirs, 2024, 36(4): 136-146.
[8] HE Wenyuan, ZHAO Ying, ZHONG Jianhua, SUN Ningliang. Characteristics and significance of micron pores and micron fractures in shale oil reservoirs of Cretaceous Qingshankou Formation in Gulong sag，Songliao Basin [J]. Lithologic Reservoirs, 2024, 36(3): 1-18.
[9] LI Erting, MI Julei, ZHANG Yu, PAN Yueyang, DILIDAER Rouzi, WANG Haijing, GAO Xiuwei. Source rock characteristics of Permian Pingdiquan Formation in Dongdaohaizi sag，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(1): 88-97.
[10] SHI Buqing, DING Liangbo, MA Hongxia, SUN Hui, ZHANG Ying, XU Xiaoyong, WANG Hongping, FAN Guozhang. Characteristics of hydrocarbon accumulation in deep-water depositional system in offshore East Africa [J]. Lithologic Reservoirs, 2023, 35(6): 10-17.
[11] MA Wenjie, WAGN Jingchun, TIAN Zuoji, MA Zhongzhen, WAN Xuepeng, LIN Jincheng, XU Xianglin, ZHOU Yubing. Accumulation model and favorable area prediction of structural-lithologic composite reservoirs in block W,the slope zone of Oriente Basin,South America [J]. Lithologic Reservoirs, 2023, 35(6): 29-36.
[12] LUO Beiwei, YIN Jiquan, HU Guangcheng, CHEN Hua, KANG Jingcheng, XIAO Meng, ZHU Qiuying, DUAN Haigang. Characteristics and controlling factors of high porosity and permeability limestone reservoirs of Cretaceous Cenomanian in the western United Arab Emirates [J]. Lithologic Reservoirs, 2023, 35(6): 63-71.
[13] FAN Rui, LIU Hui, YANG Peiguang, SUN Xing, MA Hui, HAO Fei, ZHANG Shanshan. Identification of carbonate dissolution valleys filled with mudstones of Cretaceous in block A,Oman Basin [J]. Lithologic Reservoirs, 2023, 35(6): 72-81.
[14] LIU Jiguo, ZHOU Hongpu, QIN Yanqun, ZOU Quan, ZHENG Fengyun, LI Zaohong, XIAO Gaojie. Exploration potential of lithologic reservoirs of Cretaceous AG Formation in Fula Sag,Muglad Basin,Africa [J]. Lithologic Reservoirs, 2023, 35(6): 82-91.
[15] GUO Jinhao, HU Guoyi, HE Kun, MI Jingkui, TIAN Lianjie, HE Fei, GUO Chuyuan, LU Mengdie. Geochemical characteristics and sedimentary environment of source rocks of Permian Dalong Formation in northern Sichuan Basin [J]. Lithologic Reservoirs, 2023, 35(5): 139-152.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] . [J]. Lithologic Reservoirs, 2022, 34(2): 0 .
[2] LI Zaiguang,LI Lin. Automatic mapping based on well data[J]. Lithologic Reservoirs, 2007, 19(2): 84 -89 .
[3] CHENG Yuhong,GUO Yanru,ZHENG Ximing,FANG Naizhen,MA Yuhu. The interpretation method and application effect determined by multiple seismic and logging factors[J]. Lithologic Reservoirs, 2007, 19(2): 97 -101 .
[4] LIU Juntian,JIN Zhenjia,LI Zaiguang,TAN Xinping,GUO Lin,WANG Bo,LIU Yuxiang. Controlling factors for lithologic hydrocarbon reservoirs and petroleum prospecting target in Xiaocaohu area , Taibei Sag[J]. Lithologic Reservoirs, 2007, 19(3): 44 -47 .
[5] SHANG Changliang, FU Shouxian. Application of 3D seismic survey in loess tableland[J]. Lithologic Reservoirs, 2007, 19(3): 106 -110 .
[6] WANG Changyong, ZHENG Rongcai, WANG Jianguo, CAO Shaofang, Xiao Mingguo. Sedimentary characteristics and evolution of Badaowan Formation of Lower Jurassic in northwest margin of Junggar Basin[J]. Lithologic Reservoirs, 2008, 20(2): 37 -42 .
[7] WANG Ke1 LIU Xianyang, ZHAO Weiwei, SONG Jianghai, SHI Zhenfeng, XIANG Hui. Char acter istics and geological significance of seismites of Paleogene in Yangxin Subsag of J iyang Depr ession[J]. Lithologic Reservoirs, 2008, 20(2): 54 -59 .
[8] SUN Hongbin, ZHANG Fenglian. Structural-sedimentary evolution char acter istics of Paleogene in Liaohe Depr ession[J]. Lithologic Reservoirs, 2008, 20(2): 60 -65 .
[9] LI Chuanliang. Can uplift r esult in abnormal high pr essur e in formation?[J]. Lithologic Reservoirs, 2008, 20(2): 124 -126 .
[10] WEI Qinlian，ZHENG Rongcai，XIAO Ling，MA Guofu，DOU Shijie，TIAN Baozhong. Study on horizontal heterogeneity in Serie Inferiere of Triassic in 438b block , Algeria[J]. Lithologic Reservoirs, 2009, 21(2): 24 -28 .
TRENDMD:

Copyright © 2018 Lithologic Reservoirs

Support by Beijing Magtech support@magtech.com.cn