Transformation of exploration ideas and a major breakthrough in natural gas exploration in the northern margin of the Ordos Basin

doi:10.3969/j.issn.1672-7703.2020.06.004

Abstract

Abstract: The Dongsheng gas field, discovered in a tectonic transform zone in the northern margin of the Ordos Basin, is an important base for gas reserves and production increase in China in the near and medium term. Since the “13th Five Year Plan” period, understanding of the structural and sedimentary evolution characteristics of the Ordos Basin has been continuously deepened and the factors controlling source rocks, reservoirs, and migration conditions have been defined. Analysis has focused on regional structures and the differential configurations of hydrocarbon accumulation factors in the basin with the objective of developing new understandings and transforming exploration ideas. The enrichment laws of the various plays have been determined, effectively supporting an exploration breakthrough in the tight sandstones in the northern margin of the basin. This study shows that differential configuration of effective source rocks, reservoirs, and lateral transport channels is the main controlling factor for differential gas enrichment in the northern margin of the Ordos Basin. A successively developed paleo-uplift slope zone in the Duguijiahan gas play in the central Hangjinqi block has favorable gas accumulation conditions in the Lower Shihezi Formation, which can be described as “effective configuration of source rocks and reservoirs and sealing by up-dip pinch out”. Multi-stage fault activity provided effective transport channels for the formation of multi-layer gas reservoirs. The Duguijiahan play is the first choice for integrated evaluation for petroleum exploration and development and the exploration breakthrough in new strata. Recently, more than 100 billion cubic meters of proven gas reserves have been submitted in this area, effectively promoting development and productivity construction, improving the value of natural gas resources, and expanding the exploration area in the margin of the basin.

CLC Number:

He Faqi, Wang Fubin, Zhang Wei, An Chuan, Qi Rong, Ma Chao, Chen Yingyi, Li Chuntang, Fan Lingling, Gui Pingjun. Transformation of exploration ideas and a major breakthrough in natural gas exploration in the northern margin of the Ordos Basin[J]. China Petroleum Exploration, 2020, 25(6): 39-49.

References

[1] 闵琪，杨华，付金华．鄂尔多斯盆地的深盆气[J]. 天然气工业，2000, 20(6):11-15. Min Qi, Yang Hua, Fu Jinhua. Deep basin gas in Ordos Basin[J]. Natural Gas Industry, 2000,20(6):11-15.
[2] 付金华，范立勇，刘新杜，等．鄂尔多斯盆地天然气勘探新进展、前景展望和对策措施[J]. 中国石油勘探，2019,24(4):418-430. Fu Jinhua, Fan Liyong, Liu Xinshe, et al . New progresses, prospects and countermeasures of natural gas exploration in the Ordos Basin[J]. China Petroleum Exploration, 2019,24(4): 418-430.
[3] 张金亮，常象春，张金功．鄂尔多斯盆地上古生界深盆气藏研究[J]. 石油勘探与开发，2000,27(4):30-35. Zhang Jinliang, Chang Xiangchun, Zhang Jingong. Deep basin gas trap in the Upper Paleozoic of Ordos Basin[J]. Petroleum Exploration and Development, 2000,27(4):30-35.
[4] 马新华．鄂尔多斯盆地上古生界深盆气特点与成藏机理探讨[J]. 石油与天然气地质，2005,26(2):230-236. Ma Xinhua. Discussion on characteristics and reservoiring mechanism of deep basin gas in Upper Paleozoic in Ordos Basin[J]. Oil & Gas Geology, 2005,26(2):230-236.
[5] 王志欣，张金川．鄂尔多斯盆地上古生界深盆气成藏模式[J]. 天然气工业，2006,26(2):52-54,164-165. Wang Zhixin, Zhang Jinchuan. Mechanism of deep basin gas accumulation in the Upper Paleozoic of Ordos Basin[J]. Natural Gas Industry, 2006,26(2):52-54,164-165.
[6] 郝蜀民，李良，张威，等．鄂尔多斯盆地北缘石炭系—二叠系大型气田形成条件[J]. 石油与天然气地质，2016,37(2):149-154. Hao Shumin, Li Liang, Zhang Wei, et al . Forming conditions of large-scale gas fields in Permo-Carboniferous in the northern Ordos Basin[J]. Oil & Gas Geology, 2016,37(2):149-154.
[7] 孙肇才．鄂尔多斯盆地油气发现历史回顾与经验教训（一）[J]. 地质力学学报，2010,16(3):223-236. Sun Zhaocai. Review on the history, experiences and lessons from petroleum discovery in Ordos Basin (Ⅰ) [J]. Journal of Geomechanics, 2010,16(3):223-236.
[8] 张威，李良，贾会冲．鄂尔多斯盆地杭锦旗地区十里加汗区带下石盒子组1 段岩性圈闭成藏动力及气水分布特征[J]. 石油与天然气地质， 2016,37(2):189-196. Zhang Wei, Li Liang, Jia Huichong. Reservoir-forming dynamics and gas-water distribution characteristics of lithologic traps in the 1st Member of Xiashihezi Formation in the Shilijiahan zone，Hangjinqi area，Ordos Basin[J]. Oil & Gas Geology, 2016,37(2):189-196.
[9] 齐荣．鄂尔多斯盆地伊盟隆起什股壕区带气藏类型[J]. 石油与天然气地质，2016,37(2):218-223. Qi Rong. Gas reservoir types in Shiguhao area of the Yimeng Uplift, Ordos Basin[J]. Oil & Gas Geology, 2016,37(2):218-223.
[10] 孙晓，李良，丁超．鄂尔多斯盆地杭锦旗地区不整合结构类型及运移特征[J]. 石油与天然气地质，2016,37(2):165-172. Sun Xiao, Li Liang, Ding Chao. Unconformity structure types and hydrocarbon migration characteristics in Hangjinqi area of Ordos Basin[J]. Oil & Gas Geology, 2016,37(2):165-172.
[11] 陈敬轶，贾会冲，李永杰，等．鄂尔多斯盆地伊盟隆起上古生界天然气成因及气源[J]. 石油与天然气地质，2016,37(2):205-209. Chen Jingyi, Jia Huichong, Li Yongjie, et al . Origin and source of natural gas in the Upper Paleozoic of the Yimeng Uplift，Ordos Basin[J]. Oil & Gas Geology, 2016,37(2):205-209.
[12] 杨华，席胜利，魏新善，等．鄂尔多斯多旋回叠合盆地演化与天然气富集[J]. 中国石油勘探，2006,11(1):17-24. Yang Hua, Xi Shengli, Wei Xinshan, et al . Evolution and natural gas enrichment of multicycle superimposed basin in Ordos Basin[J]. China Petroleum Exploration, 2006,11(1):17-24.
[13] 张福礼．鄂尔多斯盆地早古生代复合的古构造体系与天然气[J]. 地质力学学报，2002,8(3):193-200. Zhang Fuli. Compound ancient tectonic system and natural gas of early Paleozoic in Ordos Basin[J]. Journal of Geomechanics, 2002,8(3):193-200.
[14] 张福礼．多旋回与鄂尔多斯盆地石油天然气[J]. 石油实验地质，2004, 26(2):138-142. Zhang Fuli. Relation of multicycles to oil and natural gas in the Ordos Basin[J]. Petroleum Geology & Experiment, 2004,26(2):138-142.
[15] 韩作振，宋志刚，高丽华，等．华北板块北缘东段古生代沉积特征及盆地演化研究进展[J]. 山东科技大学学报，2014,33(2):1-10. Han Zuozhen, Song Zhigang, Gao Lihua, et al . Advances of sedimentary characteristics and basin evolution of Paleozoic in the North Eastern Margin of the North China Block[J]. Journal of Shandong University of Science and Technology, 2014,33(2):1-10.
[16] 赵振宇，郭彦如，王艳，等．鄂尔多斯盆地构造演化及古地理特征研究进展[J]. 特种油气藏，2012,19(5):15-20,151. Zhao Zhenyu, Guo Yanru, Wang Yan, et al . Study progress in tectonic evolution and paleogeography of Ordos Basin[J]. Special Oil & Gas Reserviors, 2012,19(5):15-20,151.
[17] 乔建新，邓辉，刘池洋，等．鄂尔多斯盆地北部晚古生代沉积—构造格局及物源分析[J]. 西安石油大学学报( 自然科学版)，2013,28(1): 12-17. Qiao Jianxin, Deng Hui, Liu Chiyang, et al . Sedimentarytectonic framework and provenance analysis of the late Paleozoic in the northern Ordos Basin[J]. Journal of Xi’an Shiyou University ( Natural Science Edition), 2013,28(1):12-17.
[18] 陈全红，李文厚，胡孝林，等．鄂尔多斯盆地晚古生代沉积岩源区构造背景及物源分析[J]. 地质学报，2012,86(7):1150-1162. Chen Quanhong, Li Wenhou, Hu Xiaolin, et al . Tectonic setting and provenance analysis of Late Paleozoic sedimentary rocks in the Ordos Basin[J]. Acta Geologica Sinica, 2012,86(7):1150-1162.
[19] 汪正江，张锦泉，陈洪德．鄂尔多斯盆地晚古生代陆源碎屑沉积源区分析[J]. 成都理工学院学报，2001,28(1):7-12. Wang Zhengjiang, Zhang Jinquan, Chen Hongde. Study of The disposition provenance of the terrigenous detritus in Ordos Basin in Late Paleozoic Ear[J]. Journal of Chengdu University of Technology, 2001,28(1):7-12.
[20] 孙晓．杭锦旗地区上古生界盒1 段厚层砂体疏导能力综合评价[J]. 石油地质与工程，2006,30(1):22-25. Sun Xiao. Comprehensive evaluation of the thick sand in the 1st Member of the Upper Paleozoic in Hangjinqi area[J]. Petroleum Geology and Engineering, 2006,30(1):22-25.
[21] 齐荣．鄂尔多斯盆地杭锦旗东部断裂特征及对天然气成藏的影响[J]. 特种油气藏，2019,26(4):58-63. Qi Rong. Fault characterization and its influences on gas accumulation in the Eastern Haggin Banner of Ordos Basin[J]. Special Oil & Gas Reserviors, 2019,26(4):58-63.
[22] 何治亮，金晓辉，沃玉进，等．中国海相超深层碳酸盐岩油气成藏特点及勘探领域[J]. 中国石油勘探，2016,20(1):3-14. He Zhiliang, Jin Xiaohui, Wo Yujin, et al . Hydrocarbon accumulation characteristics and exploration domains of ultra-deep marine carbonates in China[J]. China Petroleum Exploration, 2016,20(1):3-14.
[23] 金之钧，蔡勋育，刘金连，等．中国石油化工股份有限公司近期勘探进展与资源发展战略[J]. 中国石油勘探，2018,23(1):14-25. Jin Zhijun, Cai Xunyu, Liu Jinlian, et al . The recent exploration progress and resource development strategy of China Petroleum and Chemical Corporation[J]. China Petroleum Exploration, 2018,23(1):14-25.
[24] 陈欢庆，张虎俊，隋宇豪．油田开发中后期精细油藏描述研究内容特征[J]. 中国石油勘探，2018,23(3):115-128. Chen Huanqing, Zhang Hujun, Sui Yuhao. Research characteristics of fine reservoir description in middle and late oilfield development[J]. China Petroleum Exploration, 2018,23(3):115-128.
[25] 姚泾利，刘晓鹏，赵会涛，等．鄂尔多斯盆地盒8 段致密砂岩气藏储层特征及地质工程一体化对策[J]. 中国石油勘探，2019,24(2):186-195. Yao Jingli, Liu Xiaopeng, Zhao Huitao, et al . Characteristics of He 8th member tight sandstone gas reservoir and solution based on geology-engineering integration in Ordos Basin[J]. China Petroleum Exploration, 2019,24(2):186-195.