Niudong 1 ultra-deep and ultra-high temperature subtle buried hill field in Bohai Bay Basin：Discovery and significance

doi:10.7623/syxb201106001

Editorial office of ACTA PETROLEI SINICA ›› 2011, Vol. 32 ›› Issue (6): 915-927.DOI: 10.7623/syxb201106001

• Petroleum Exploration • Next Articles

Niudong 1 ultra-deep and ultra-high temperature subtle buried hill field in Bohai Bay Basin：Discovery and significance

ZHAO Xianzheng 1 JIN Fengming 1 WANG Quan 1 ZHANG Ruifeng 1 WANG Jing 1 BAI Xuming 2 LIU Zhanzu 2 CAI Bo 3

Received:2011-09-20 Revised:2011-10-08 Online:2011-11-25 Published:2012-01-17

渤海湾盆地牛东1超深潜山高温油气藏的发现及其意义

赵贤正 1 金凤鸣 1 王权 1 张锐锋 1 王静 1 白旭明 2 刘占族 2 才博 3

1中国石油华北油田公司河北任丘 062552； 2中国石油集团东方地球物理勘探有限责任公司河北涿州 072751； 3中国石油勘探开发研究院廊坊分院河北廊坊 065007

通讯作者: 赵贤正
作者简介:赵贤正，男，1962年10月生， 2005年获中国石油大学（北京）博士学位，现为中国石油华北油田公司副总经理、教授级高级工程师，主要从事石油地质综合研究与勘探管理工作。
基金资助:
中国石油天然气股份有限公司科技项目（2011D-0703）资助。

Abstract

Abstract:

Niudong 1 Well, which recorded a prolific oil flow of 642.9 m³/d and gas flow of 56.3×10⁴ m³/d, discovered a buried hill field in the Baxian Depression, Jizhong Sub-basin, Bohai Bay Basin. The reservoir of this field is the deepest and its temperature is the highest in the Bohai Bay Basin or even in East China. The well has a total depth of 6027 m at which the reservoir is saturated with oil and oil-water contact is not found. Its bottom hole temperature is up to 201℃. The exploration of this field has experienced 4 stages: Initial failure, suspension of renewed exploration, regained hope and great breakthrough, which last over 30 years. High resolution repeated 3D seismic prospecting and hydro-fracturing with high temperature-resistant acid played vital roles in finding the buried hill trap and obtaining prolific oil and gas flows. The hydrocarbon richness and prolific production rate of this field are attributed to the following three main factors. ①Thick excellent highly matured source rocks are developed in the deeply buried from Sha 4 Member to Kongdian Formation so that abundant hydrocarbons could be generated. ②Reservoirs of the buried hill field possess good petrophysical properties, which are generally not affected by the burial depth. ③The buried hill trap was formed early and characterized by early charging, sustained charging and overpressured charging. The good matching of timing of hydrocarbon charging and trap formation favored the hydrocarbon accumulation and entrapment. The discovery of Niudong 1 Well is of milestone significance in promoting exploration of ultra-deep buried hill fields in the Bohai Bay Basin.

Key words: Bohai Bay Basin, Baxian Depression, ultra-deep buried hill, ultra-high temperature oil and gas accumulations, exploration history, key technology, enrichment factor, exploration prospect

摘要：

冀中坳陷霸县凹陷牛东1井在蓟县系雾迷山组获得了石油642.9 m³/d、天然气 56.3×10 ⁴ m³/d 的特高产油气流，从而发现了渤海湾盆地乃至中国东部目前埋深最大、温度最高的潜山油气藏。牛东1井钻探揭示，油气藏底部深度已达6027m 仍未见油水界面，温度已达201℃。该潜山油气藏的发现经历了初战失利、再战搁浅、重燃希望、重大突破4个阶段30余年的探索，高精度二次三维地震勘探及抗高温深度体积酸压改造为其圈闭发现和获得高产提供了关键技术支持。该超深潜山油气藏高产富集的主要因素：①深层沙四段—孔店组发育巨厚优质高成熟烃源岩，油气源充足；②潜山储集物性好，基本不受埋深的影响；③成藏条件匹配好，具有圈闭早形成并被烃源岩包围，以及油气早充注、持续充注、高压充注的成藏优势。牛东1潜山油气藏的发现对于推动渤海湾盆地超深层潜山油气勘探具有重要的里程碑意义。

关键词: 渤海湾盆地, 霸县凹陷, 超深潜山, 高温油气藏, 勘探历程, 关键技术, 油气富集因素, 勘探前景

ZHAO Xianzheng JIN Fengming WANG Quan ZHANG Ruifeng WANG Jing BAI Xuming. Niudong 1 ultra-deep and ultra-high temperature subtle buried hill field in Bohai Bay Basin：Discovery and significance[J]. Editorial office of ACTA PETROLEI SINICA, 2011, 32(6): 915-927.

赵贤正金凤鸣王权张锐锋王静白旭明刘占族才博. 渤海湾盆地牛东1超深潜山高温油气藏的发现及其意义[J]. 石油学报, 2011, 32(6): 915-927.

References

[1]杜金虎,邹伟宏,费宝生,等.冀中拗陷古潜山复式油气聚集区[M].北京:科学出版社,2002.

Du Jinhu,Zou Weihong,Fei Baosheng,et al.Buried hill composite hydrocarbon accumulation zone of Jizhong Depression [M]. Beijing:Science Press,2002.

[2]赵贤正,金凤鸣,张以明,等.富油凹陷隐蔽型潜山油气藏精细勘探[M].北京:石油工业出版社,2010.

Zhao Xianzheng,Jin Fengming,Zhang Yiming，et al.Fine exploration of subtle buried-hill reservoirs in oil- enriched sags[M].Beijing: Petroleum Industry Press,2010.

[3]易士威,赵淑芳,范炳达,等.冀中坳陷中央断裂构造带潜山发育特征及成藏模式[J].石油学报,2010,31(3):361-367.

Yi Shiwei,Zhao Shufang,Fan Bingda,et al.Development characteristics of buried-hill and reservoir-forming pattern in central faulted structural belt of Jizhong Depression[J].Acta Petrolei Sinica,2010,31(3):361-367.

[4]费宝生,汪建红.中国海相油气田勘探实例之三：渤海湾盆地任丘古潜山大油田的发现与勘探[J].海相油气地质,2005,10(3):43-50.

Fei Baosheng,Wang Jianhong.Cases of discovery and exploration of marine fields in China:Part 3:Renqiu buried-hill oilfield,Bohaiwan Basin[J].Marine Origin Petroleum Geology,2005,10(3): 43-50.

[5]王懋基,蔡鑫,涂承林.中国重力勘探的发展与展望[J].地球物理学报1997,40(增刊):292-297.

Wang Maoji,Cai Xin,Tu Chenglin.Development and prospect of gravity prospecting in China[J].Acta Geophysica Sinica,1997,40(Supplement):292-297.

[6]曾华霖.石油重磁勘探的进展[J].石油地球物理勘探,1999,34(增刊):115-123.

Zeng Hualin.Progress of gravity and magnetic petroleum exploration [J].Oil Geophysical Prospecting,1999,34(Supplement):115-123.

[7]金凤鸣，张锐锋，杨彩虹,等．冀中坳陷饶阳凹陷大王庄东断层下降盘岩性油藏勘探[J]．中国石油勘探，2004，9（3）：58-61.

Jin Fengming，Zhang Ruifeng，Yang Caihong，et al．Exploration of lithologic oil reservoirs in downthrown block in east Dawangzhuang fault in Raoyang Sag of Jizhong Depression[J]．China Petroleum Exploration，2004，9（3）：58-61.

[8]金凤鸣，张锐锋，田建章,等．冀中坳陷饶阳凹陷留西沙三段岩性油藏勘探思路[J]．中国石油勘探，2004，9（3）：62-66.

Jin Fengming，Zhang Ruifeng，Tian Jianzhang，et al．Exploration of lithologic oil reservoir in Liuxi Es₃ Section in Raoyang Sag of Jizhong Depression[J]．China Petroleum Exploration，2004，9（3）：62-66.

[9]杜金虎，易士威，王权．华北油田隐蔽油藏勘探实践与认识[J]．中国石油勘探，2003，8(1)：1-10.

Du Jinhu，Yi Shiwei，Wang Quan．In-depth study and exploration practice of subtle oil reservoirs of Huabei Oilfield[J]．China Petroleum Exploration，2003，8(1)：1-10.

[10]杜金虎，易士威，雷怀玉，等.二连盆地岩性地层油藏形成条件与油气分布规律[J]．中国石油勘探，2004，9（3）：1-5.

Du Jinhu，Yi Shiwei，Lei Huaiyu，et al.Formation conditions for lithologic and stratigraphic oil reservoirs and oil and gas distribution in Erlian Basin[J]．China Petroleum Exploration，2004，9（3）：1-5.

[11]赵文智，张光亚，王红军．石油地质理论新进展及其在拓展勘探领域中的意义[J]．石油学报，2005，26(1)：1-12.

Zhao Wenzhi，Zhang Guangya，Wang Hongjun．New achievements of petroleum geology theory and its significances on expanding oil and gas exploration field[J]．Acta Petrolei Sinica，2005，26(1)：1-12.

[12]王权，赵贤正，金凤鸣,等．陆相盆地断陷洼槽区典型油藏成藏模式——以冀中坳陷和二连盆地为例[J]．中国石油勘探，2008，13（2）：9-12.

Wang Quan，Zhao Xianzheng，Jin Fengming,et al． Typical reservoir forming patterns in sags in fault depressions of terrestrial basins:A case study of Jizhong Depression and Erlian Basin[J]．China Petroleum Exploration，2008，13（2）：9-12.

[13]赵贤正，卢学军，王权．华北油田地层-岩性油藏勘探发现与启示[J]．石油与天然气地质，2007，28(5)：597-604.

Zhao Xianzheng，Lu Xuejun，Wang Quan．Discoveries and their implications in the stratigraphic-lithologic reservoir exploration of Huabei Oilfield[J]．Oil & Gas Geology，2007，28(5)：597-604.

[14]赵贤正，金凤鸣，刘震,等．二连盆地地层岩性油藏“多元控砂—四元成藏—主元富集”与勘探实践（I）——“多元控砂”机理[J]．岩性油气藏，2007，19（2）：9-15.

Zhao Xianzheng，Jin Fengming，Liu Zhen，et al．“Multi-factor controlling,four-factor entrapping and key-factor enrichment” of stratigraphic-lithologic reservoirs and exploration practice in Erlian Basin:Ⅰ:“Multi-factor controlling” mechanism[J]．Lithologic Reservoirs,2007，19（2）：9-15.

[15]吴永平,杨池银,王喜双.渤海湾盆地北部奥陶系潜山油气藏成藏组合及勘探技术[J].石油勘探与开发,2000,27(5):1-4.

Wu Yongping,Yang Chiyin,Wang Xishuang.Ordovician buried hill reservoir plays and exploration technique of northern Bohai Bay Basin[J].Petroleum Exploration and Development,2000, 27(5):1-4.

[16]孟卫工,陈振岩,李湃,等.潜山油气藏勘探理论与实践——以辽河坳陷为例[J].石油勘探与开发,2009,36(2):136-143.

Meng Weigong,Chen Zhenyan,Li Pai,et al.Exploration theories and practices of buried-hill reservoirs:A case from Liaohe Depressions[J].Petroleum Exploration and Development,2009,36(2):136-143.

[17]燕子杰,姜能栋,吉双文.济阳坳陷东北部潜山类型划分及油气富集规律[J].中国石油勘探,2008,13(6):15-18.

Yan Zijie,Jiang Nengdong,Ji Shuangwen.Classification and hydrocarbon enrichment law of buried hills in northeastern Jiyang Depression[J].China Petroleum Exploration,2008,13(6):15-18.

[18]李丕龙,张善文,王永诗,等.断陷盆地多样性潜山成因及成藏研究——以济阳坳陷为例[J].石油学报,2004,25(3):28-31.

Li Pilong,Zhang Shanwen,Wang Yongshi,et al.Multiplex buried-hill genesis and pool-forming in rifted basin[J].Acta Petrolei Sinica,2004,25(3):28-31.

[19]高平,姜素华,王志英.济阳坳陷潜山油藏形成机理与成藏模式[J].海洋地质动态,2009,25(3):1-6.

Gao Ping,Jiang Suhua,Wang Zhiying.Formation mechanism and accumulation models of buried hill reservoirs of Jiyang Depression [J].Marine Geology Letters,2009,25(3):1-6.

[20]李玉城.渤海湾盆地潜山油气富集规律与勘探[J].海洋地质动态,2008,24(3):1-7.

Li Yucheng.Petroleum accumulation and exploration for buried hill reservoir in Bohai Bay Basin[J].Marine Geology Letters,2008,24(3):1-7.

[21]胡朝元．生油区控制油气田分布——中国东部陆相盆地进行区域勘探的有效理论[J]．石油学报，1982，3（2）：9-14.

Hu Chaoyuan．Source bed controls hydrocarbon habitat in continental basins,East China[J]．Acta Petrolei Sinica，1982，3（2）：9-14.

[22]赵贤正,吴兆徽,闫宝义,等.冀中坳陷潜山内幕油气藏类型与分布规律[J].新疆石油地质,2010,31(1):4-6.

Zhao Xianzheng,Wu Zhaohui,Yan Baoyi,et al.Distribution and types of buried hill oil-gas reservoir in Jizhong Depression[J].Xinjiang Petroleum Geology,2010,31(1):4-6.

[23]赵贤正,卢学军,王权.富油气凹陷的二次勘探[J].中国石油勘探,2010,15（2）：1-7.

Zhao Xianzheng,Lu Xuejun,Wang Quan.Secondary exploration in oil-rich sags[J].China Petroleum Exploration,2010,15（2）:1-7.

[24]赵文智，邹才能，汪泽成,等．富油气凹陷“满凹含油”论——内涵与意义[J]．石油勘探与开发，2004，31（2）：5-13.

Zhao Wenzhi，Zou Caineng，Wang Zecheng,et al．The intension and signification of “sag-wide oil-bearing theory” in the hydrocarbon-rich depression with terrestrial origin[J]．Petroleum Exploration　and Development，2004，31（2）：5-13.

[25]赵贤正,张以明,唐传章,等.高精度三维地震采集处理解释一体化勘探技术与管理[J].中国石油勘探,2008，13（2）：74-82.

Zhao Xianzheng,Zhang Yiming,Tang Chuanzhang,et al.High-precision seismic exploration integrated with acquisition,processing and interpretation[J].China Petroleum Exploration,2008,13(2):74-82.

[26]赵贤正,金凤鸣,王余泉,等.冀中坳陷长洋淀地区“古储古堵”潜山成藏模式[J].石油学报,2008,29(4):489-498.

Zhao Xianzheng,Jin Fengming,Wang Yuquan,et al.Buried-hill reservoir-forming mode of “old reservoir-old sealing formation” in Changyangdian area of Jizhong Depression[J].Acta Petrolei Sinica,2008,29(4):489-498.

[27]赵贤正,金凤鸣,赵志刚,等.二连盆地基底石炭系碳酸盐岩油藏的发现及地质特征[J].海相油气地质,2008,13 (4):12-18.

Zhao Xianzheng,Jin Fengming,Zhao Zhigang,et al.Discovery and geologic characteristics of Carboniferous basement carbonate reservoir in Erlian Basin[J].Marine Origin Petroleum Geology,2008,13(4):12-18.

[28]田世峰,查明,吴孔友,等.饶阳凹陷潜山油气分布特征及富集规律[J].海洋地质与第四纪地质,2009,29(4):143-150.

Tian Shifeng,Zha Ming,Wu Kongyou,et al.Distribution features and enrichment regularity of buried hill reservoirs in Raoyang Sag[J].Marine Geology & Quaternary Geology,2009,29(4):143-150.

[29]马立驰.济阳坳陷碳酸盐岩潜山油气藏勘探技术综述[J].石油学报,2004,25(6)：44-47.

Ma Lichi.Overview of exploration techniques for carbonate buried-hill reservoirs in Jiyang Depression[J].Acta Petrolei Sinica, 2004,25(6)：44-47.

[30]邱毅,魏振乾,刘章造,等.华北油田高精度三维地震采集技术[J].中国石油勘探,2008，13（2）：21-28.

Qiu Yi,Wei Zhenqian,Liu Zhangzao，et al.High-precision 3D seismic data acquisition techniques in Huabei Oilfield[J].China Petroleum Exploration,2008,13（2）：21-28.

[31]李爱山,鞠玉芹,孙秀芳,等.高温高黏胶凝酸体系合成及性能评价[J].石油学报，2007,28(2):90-93.

Li Aishan,Ju Yuqin,Sun Xiufang,et al.Synthesizing and capability estimation of high-temperature and high-viscosity gelled acid system[J].Acta Petrolei Sinica,2007,28(2):90-93.

[32]陈志海，戴勇.深层碳酸盐岩储层酸压工艺技术现状与展望[J].石油钻探技术，2005,33（1）：58-62.

Chen Zhihai，Dai Yong.Actuality and outlook of acid-fracturing technique in deep carbonate formation[J].Petroleum Drilling Techniques，2005,33（1）58-62.

[33]Kalfayan L J.Fracture acidizing:History,present state,and future[R].SPE 106371,2007.

[34]刘合，张劲，张士诚.多功能清洁酸性压裂液的设计[J].石油学报，2009,30(3): 427-429.

Liu He, Zhang Jin,Zhang Shicheng.Property and design of clean acid fracturing fluid with multi-function[J].Acta Petrolei Sinica, 2009,30(3):427-429.

[35]戴金星，邹才能，陶士振，等.中国大气田形成条件和主控因素[J].天然气地球科学,2007,18(4):473-483.

Dai Jinxing,Zou Caineng,Tao Shizhen,et al. Formation conditions and main controlling factors of large gas fields in China[J].Natural Gas Geoscience,2007,18(4):473-483.

[36]戴金星.天然气地质和地球化学论文集:卷二[M].北京：石油工业出版社,2000：210.

Dai Jinxing.Natural gas geology and geochemistry symposia:Volume 2.[M].Beijing:Petroleum Industry Press,2000:210.

[37]康竹林,翟光明.渤海湾盆地新层系新领域油气勘探前景[J].石油学报,1997,18(3):1-6.

Kang Zhulin, Zhai Guangming.Hydrocarbon exploration prospect of new series of strata and new area in Bohaiwan Basin[J].Acta Petrolei Sinica,1997,18(3):1-6.

[38]谯汉生，方朝亮，牛嘉玉，等.渤海湾盆地深层石油地质[M].北京:石油工业出版社,2002.

Qiao Hansheng,Fang Chaoliang,Niu Jiayu,et al．Petroleum geology of deep horizon in Bohaiwan Basin[M].Beijing: Petroleum Industry Press,2002.

Niudong 1 ultra-deep and ultra-high temperature subtle buried hill field in Bohai Bay Basin：Discovery and significance

渤海湾盆地牛东1超深潜山高温油气藏的发现及其意义

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[9]	Jiang Fujie, Guo Jing, Pang Xiongqi, Chen Di, Wang Jianwei, Wang Yingxun, Li Yaxi, Chen Xue, Guo Tingwei, Fang Zhou, Wang Xiaohao, Qi Zhenguo, Wen Jiahao. Joint evaluation of three types of oil-gas resources in whole petroleum system of Nanpu sag, Bohai Bay Basin [J]. Acta Petrolei Sinica, 2023, 44(9): 1472-1486.
[10]	Tang Yong, Wang Yanjun, Guo Juanjuan, Ablimit Imin, Pan Shuxin, Bian Baoli, Yang Chao, Sun Yongxing, Wei Cairu, Ma Delong, Liu Hailei, Huang Yu, Cui Jian. Enrichment conditions and exploration prospects of oil and gas in multi-layer system in Xiayan uplift, Junggar Basin [J]. Acta Petrolei Sinica, 2023, 44(4): 583-597,635.
[11]	Zhi Dongming, Li Jianzhong, Chen Xuan, Yang Fan, Liu Juntian, Gou Hongguang, Zhang Hua, Lin Lin, Li Bin, Sun Yufeng, Hu Jun. New fields,new types and resource potentials of oil-gas exploration in Tuha Basin [J]. Acta Petrolei Sinica, 2023, 44(12): 2122-2140.
[12]	Zhao Weibo, Huang Daojun, Wang Kangle, Hu Xinyou, Hui Jie, Chen Yuhang. Accumulation conditions and key technologies of exploration and development for Q ingshimao gas field in Ordos Basin [J]. Acta Petrolei Sinica, 2023, 44(10): 1739-1754.
[13]	Zhao Xianzheng, Pu Xiugang, Jin Fengming, Chen Changwei, Shi Zhannan, Chai Gongquan, Han Wenzhong, Jiang Wenya, Guan Quansheng, Zhang Wei, Xie Delu, Dong Jiangchang. Enrichment law and favorable exploration area of shale-type shale oil in Huanghua depression [J]. Acta Petrolei Sinica, 2023, 44(1): 158-175.
[14]	Zhao Xianzheng, Jin Fengming, Zhou Lihong, Han Guomeng, Pu Xiugang, Chai Gongquan, Chen Changwei, Zhou Suyan, Liu Xuewei, Han Wenzhong, Jiang Wenya, Zhou Yuwen, Ma Jianying, Zhou Kejia. Breakthrough and significance of shale oil exploration in Member 1 of Shahejie Formation of Well Qiye1H, a risk exploratory well in Bohai Bay Basin [J]. Acta Petrolei Sinica, 2022, 43(10): 1369-1382.
[15]	Lu Baoping. A key technology for drilling and completion in complex carbonate oilfields with highly acid and active thick asphalt layers [J]. Acta Petrolei Sinica, 2021, 42(7): 962-970.