Prospect and breakthrough point of oil and gas exploration in Baoding sag,Jizhong depression

doi:10.3969/j.issn.1672-7703.2017.04.006

Abstract

Abstract: Based on seismic, drilling and chemical analysis data, and studies on basin development background and structural and depositional characteristics, the source rock and resource potential in the Paleogene Kongdian Formation and the fourth member of the Shahejie Formation (Sha 4 Member) in the Baoding sag, the Jizhong depression, were analyzed synthetically using logging evaluation and basin simulation techniques, and the prospect and favorable targets of oil and gas exploration were predicted. The study shows that the Baoding sag is a dustpanlike faulted depression which is faulted on the west and overlaid on the east, under the control of the fault belt on the east of the Taihang Mountain, and it has similar basin-forming background and tectonic-sedimentary evolution process as the sags on the west of the Jizhong depression, such as the Langgu sag, the Xushui sag and the Shijiazhuang sag. During the deposition of the Paleogene Kongdian Formation and Sha 4 Member, the northern part of the Baoding sag connected to the Dianbei subsag of the Baxian sag and the Xushui sag in the same confluence lake basin, where two sets of brackish semi-deep and deep lacustrine source rocks were developed, i.e. the fourth member of the Shahejie Formation-the first member of the Kongdian Formation (Sha 4-Kong 1), and the second member of the Kongdian Formation-the third member of the Kongdian Formation (Kong 2-Kong 3). The distribution area of high quality source rocks with TOC of more than 2% is 1470 km² and 910 km², respectively, and the thickness is 10-140 m in the subsags. The estimated oil resources and gas resources are (1.27-2.03)×10⁸t and (270.24-333.29)×10⁸m³ respectively in the Baoding sag, which mainly accumulate in the buried hill and the Kongdian Formation. The sag has good prospect of oil and gas exploration. In the sag, the drape anticline in the "uplift-in-sag" Qingyuan buried hill provides good accumulation conditions, which can develop into buried hill reservoirs with "new source rocks and old reservoir beds" and structural reservoirs in Kong 1 Member as favorable exploration breakthrough points.

Key words: resource potential, exploration breakthrough point, Paleogene, Baoding sag, Jizhong depression

CLC Number:

TE112

Han Chunyuan, Shi Yulei, Liu Jing, Gao Zhenghong, Zhao Wenlong, Luo Luyao. Prospect and breakthrough point of oil and gas exploration in Baoding sag,Jizhong depression[J]. China Petroleum Exploration, 2017, 22(4): 61-72.

References

[1] 孙冬胜,刘池阳,杨明慧,杜金虎,张以明,张锐峰. 渤海湾盆地冀中坳陷中区中新生代复合伸展构造[J]. 地质论评,2004,50(5):484-491. Sun Dongsheng, Liu Chiyang, Yang Minghui, Du Jinhu, Zhang Yiming, Zhang Ruifeng.Study on complex extensional structures in the middle Jizhong depression in the Bohai Bay Basin[J]. Geological Review, 2004,50(5):484-491.
[2] 陈云林. 论凹陷类型与油气勘探——以渤海湾盆地为例[J]. 油气地质与采收率,2001,8(2):4-8. Chen Yunlin. One type of sags and exploration for oil and gastaking Bohaiwan Basin as an example[J]. Oil & Gas Recovery Technology, 2001,8(2):4-8.
[3] 谯汉生,牛嘉玉,关德师. 中国东部深层石油地质[M]. 北京:石油工业出版社,2002:254-255. Jiao Hansheng, Niu Jiayu, Guan Deshi. Deep geology in the eastern part, China[M]. Beijing:Oil Industry Press, 2002:254-255.
[4] 杜金虎,何海清,赵贤正,张以明,王权,张锐锋,等. 渤海湾盆地廊固凹陷杨税务超深超高温奥陶系潜山油气勘探重大突破实践与启示[J]. 中国石油勘探,2017,22(2):1-12. Du Jinhu, He Haiqing, Zhao Xianzheng, Zhang Yiming, Wang Quan, et al. Significant exploration breakthrough in Yangshuiwu ultra-deep and ultra-high temperature Ordovician buried-hill in Langgu sag, Bohai Bay Basin[J]. China Petroleum Exploration, 2017,22(2):1-12.
[5] 李兆影,邱楠生,李政. 渤海湾盆地深层孔店组烃源岩评价[J]. 天然气工业,2006,26(10):18-22. Li Zhaoying, Qiu Nansheng, Li Zheng. Evaluation on source rocks in Kongdian Formation of deep Bohai Bay Basin[J]. Natural Gas Industry,2006,26(10):18-22.
[6] 赵贤正,周立宏,蒲秀刚,肖敦清,姜文亚,韩文中,等. 断陷湖盆斜坡区油气富集理论与勘探实践——以黄骅坳陷古近系为例[J]. 中国石油勘探, 2017,22(2):13-24. Zhao Xianzheng, Zhou Lihong, Pu Xiugang, Xiao Dunqing, Jiang Wenya, Han Wenzhong, et al. Hydrocarbon enrichment theory and exploration practice in the slope of fault lake basin-a case study of Paleogene in Huanghua depression[J]. China Petroleum Exploration, 2017,22(2):13-24.
[7] 田然,田建章,于炳松,牛素莉,吴德彬. 廊固凹陷大柳泉构造带油气藏形成与成藏模式[J]. 特种油气藏,2015,22(4):56-60. Tian Ran, Tian Jianzhang, Yu Bingsong, Niu Suli, Wu Debin. Forming and Accumulation mode of oil/gas reservoirs in Daliuquan structural belt of Langgu sag[J]. Special Oil & Gas Reservoirs, 2015,22(4):56-60.
[8] 何海清,王兆云,程玉群. 渤海湾盆地深层石油地质条件分析[J]. 沉积学报,1999,17(2):273-279. He Haiqing, Wang Zhaoyun, Cheng Yuqun. Petroleum geology condition analysis to the deep zone of Bohai Gulf Basin[J]. Acta Sedimentologica Sinica, 1999,17(2):273-279.
[9] 梁建设,张功成,苗顺德. 辽东湾辽西凹陷沙河街组烃源岩评价及油源研究[J]. 沉积学报,2012,30(4):739-745. Liang Jianshe, Zhang Gongcheng, Miao Shunde. Evaluation of Shahejie source rock and oil source research in the Liaoxi depression,Liaodong Bay,China[J]. Acta Sedimentologica Sinica, 2012,30(4):739-745.
[10] 徐祖新,姜文亚,张义杰,赵萌,王居峰. 渤海湾盆地沧东凹陷孔二段优质烃源岩成烃环境[J]. 东北石油大学学报,2015,39(4):71-77. Xu Zuxin, Jiang Wenya, Zhang Yijie, Zhao Meng, Wang Jufeng. Hydrocarbon forming environment of source rocks of the second Member of Kongdian Formation in Cangdongsag,Baohai Bay Basin[J]. Journal of Northeast Petroleum University, 2015,39(4):71-77.
[11] 蒲秀刚,韩文中,周立宏,陈世悦,张伟,时战楠,等. 黄骅坳陷沧东凹陷孔二段高位体系域细粒相区岩性特征及地质意义[J]. 中国石油勘探, 2015,20(5):30-40. Pu Xiugang, Han Wenzhong, Zhou Lihong, Chen Shiyue, Zhang Wei, Shi Zhannan, et al. Lithologic characteristics and geological implication of fine-grained sedimentation in Ek₂ high stand system tract of Cangdong sag, Huanghua depression[J]. China Petroleum Exploration, 2015,20(5):30-40.
[12] 陈建渝,彭晓波,张冬梅,冯刚,杨泽荣,游兴友,等. 济阳坳陷古新世孔店组生烃潜能评价[J]. 石油勘探与开发,2002,29(3):17-20. Chen Jianyu, Peng Xiaobo, Zhang Dongmei,Feng Gang, Yang Zerong, You Xingyou, et al. Evaluation of the hydrocarbongeneration potential for the Kongdian Formation of Palaeocene in Jiyang depression[J]. Petroleum Exploration and Development, 2002,29(3):17-20.
[13] 李宏军,李会慎,曾建宏,王莉,陈满斗. 南皮斜坡孔二段油气分布规律及主控因素分析[J]. 特种油气藏,2015,22(1):56-60. Li Hongjun, Li Huishen, Zeng Jianhong, Wang Li, Chen Mandou. Kong2 Member hydrocarbon distribution and controlling factors in Nanpi slope[J]. Special Oil & Gas Reservoirs, 2015,22(1):56-60.
[14] 袁东山,张枝焕,曾艳涛,张学军. 昌潍坳陷潍北凹陷深层孔二段烃源岩有机相[J]. 石油天然气学报,2006,28(4):211-213. Yuan Dongshan, Zhang Zhihuan, Zeng Yantao, Zhang Xuejun. Organic facies of source rocks in the 2nd Member of Kongdian Formation of Weibei sag in Changwei Depression[J]. Journal of Oil and Gas Technology, 2006,28(4):211-213.
[15] 李欣,郑署泓,彭宁,和雅琴,贺淑萍,乔晓霞. 冀中霸县凹陷古近系深层油气资源潜力研究[J]. 石油实验地质,2008,30(6):600-605. Li Xin, Zheng Shuhong, Peng Ning, He Yaqin, He Shuping, Qiao Xiaoxia. Analysis of deep-seated hydrocarbon resource potential of Palaeogene in the Baxian sag central Hebei Province[J]. Petroleum Geology & Experiment, 2008,30(6):600-605.
[16] 曹忠祥,张宇,蔡攀,李友强,刘建磊,董月昌. 济阳坳陷精细勘探新成果与启示[J]. 中国石油勘探, 2016,21(3):14-23. Cao Zhongxiang, Zhang Yu, Cai Pan, Li Youqiang, Liu Jianlei, Dong Yuechang. New achievements and recognitions of fine exploration in Jiyang depression[J]. China Petroleum Exploration, 2016,21(3):14-23.
[17] 梁宏斌,朱光有,张水昌,梁英波,马顺平. 冀中坳陷晋县凹陷下第三系断陷湖盆的演化与烃源岩的形成[J]. 石油实验地质,2005, 27(6):583-587. Liang Hongbin,Zhu Guangyou,Zhang Shuichang,Liang Yingbo,Ma Shunping. The evolution of faulted-basin and development of hydrocarbon source rocks in down Tertiary system of the Jinxian sag, the Jizhong depression[J]. Petroleum Geology & Experiment, 2005,27(6):583-587.
[18] 赵贤正,金凤鸣,王权,张锐锋,王静,白旭明. 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. Zhao Xianzheng, Jin Fengming, Wang Quan,Zhang Ruifeng, Wang Jing, Bai Xuming. Niudong 1 ultra-deep and ultrahigh temperature subtle buried hill field in Bohai Bay Basin:discovery and significance[J]. Acta Petrolei Sinica, 2011,32(6):915-927.
[19] 杜金虎,赵贤正,张以明,张锐锋,曹兰柱,田建章. 牛东1风险探井重大发现及其意义[J]. 中国石油勘探,2012,17(1):1-7. Du Jinhu, Zhao Xianzheng, Zhang Yiming, Zhang Ruifeng, Cao Lanzhu, Tian Jianzhang. Great discovery made in risk exploration of Niudong1 Well and its significance[J]. China Petroleum Exploration, 2012,17(1):1-7.
[20] 王建瑞,刘趁花,郭永军,朱洁琼,金涛. 冀中坳陷霸县凹陷文安斜坡潜山油气成藏模式与勘探发现[J]. 海相油气地质,2012,17(1):35-40. Wang Jianrui, Liu Chenhua, Guo Yongjun, Zhu Jieqiong, Jin Tao. A hydrocarbon accumulation model and petroleum discovery of Cambrian buried hill reservoirs in Wen'an slope, Jizhong depression[J]. Marine Origin Petroleum Geology, 2012,17(1):35-40.
[21] 张林晔,孔祥星,张春荣,周文,徐兴友,李政. 济阳坳陷下第三系优质烃源岩的发育及其意义[J]. 地球化学,2003,32(1):35-42. Zhang Linye, Kong Xiangxing, Zhang Chunrong, Zhou Wen, Xu Xingyou, Li Zheng. High quality oil prone source rocks in Jiyang depression[J]. Geochimica, 2003,32(1):35-42.
[22] 金强,朱光有,王娟. 咸化湖盆优质烃源岩的形成与分布[J]. 中国石油大学学报:自然科学版,2008,32(4):19-23. Jin Qiang, Zhu Guangyou, Wang Juan. Deposition and distribution of high-potential source rocks in saline lacustrine environments[J]. Journal of China University of Petroleum:Edition of Natural Science, 2008,32(4):19-23.
[23] 王贵文,朱振宇,朱广宇. 烃源岩测井识别与评价方法研究[J]. 石油勘探与开发,2002,29(4):50-52. Wang Guiwei, Zhu Zhenyu, Zhu Guangyu. Logging identification and evaluation of Cambrian-Ordovician source rocks in syneclise of Tarim Basin[J]. Petroleum Exploration and Development, 2002,29(4):50-52.
[24] 王方雄,侯英姿,夏季. 烃源岩测井评价新进展[J]. 测井技术, 2002,26(2):89-93. Wang Fangxiong, Hou Yingzi, Xia Ji.New advances in hydrocarbon source rocks evaluation[J]. Well Logging Technology, 2002,26(2):89-93.
[25] 于鹏. 西部凹陷N地区油气运移及成藏模拟[J]. 内蒙古石油化工, 2015(2):68-70. Yu Peng. Oil migration and accumulation simulation of N area in the West sag[J]. Inner Mongolia Petrochemical Industry, 2015(2):68-70.
[26] 郭秋麟, 陈宁生, 刘成林, 谢红兵, 吴晓智, 王社教, 等. 油气资源评价方法研究进展与新一代评价软件系统[J]. 石油学报, 2015,36(10):1305-1313. Guo Qiulin, Chen Ningsheng, Liu Chenglin,Xie Hongbing, Wu Xiaozhi, Wang Shejiao, et al. Research advance of hydrocarbon resource assessment method and a new assessment software system[J]. Acta Petrolei Sinica, 2015,36(10):1305-1313.
[27] 杜金虎,邹伟宏,费宝生,雷怀玉,张凤藻,张以明. 冀中坳陷古潜山复式油气聚集区[M]. 北京:科学出版社,2002:378-403. Du Jinhu, Zou Weihong, Fei Baosheng, Lei Huaiyu,Zhang Yiming. Multiple oil-gas accumulation play of the buried hill, Jizhong depression[M]. Beijing:Science Press, 2002:378-403.
[28] 赵贤正,金凤鸣,王余泉,郭永军,刘井旺,郑荣华. 冀中坳陷长洋淀地区"古储古堵"潜山成藏模式[J]. 石油学报,2008,49(8):489-498. Zhao Xianzheng, Jin Fengming, Wang Yuquan, Guo Yongjun, Liu Jingwang, Zheng Ronghua. Buried-hill reservoir-forming mode of"old reservoir-old sealing formation"in Changyangdian area of Jizhong depression[J]. Acta Petrolei Sinica, 2008,49(8):489-498.