Petroleum Exploration and Development >
Formation conditions and exploration direction of large natural gas reservoirs in the oil-prone Bohai Bay Basin, East China
Received date: 2019-06-24
Revised date: 2020-01-02
Online published: 2020-05-08
Supported by
Supported by the China National Science and Technology Major Project(2016ZX05024-003)
The Bohai Bay Basin is a typical oil-prone basin, in which natural gas geological reserves have a small proportion. In this basin, the gas source rock is largely medium-deep lake mudstone with oil-prone type II2-II1 kerogens, and natural gas preservation conditions are poor due to active late tectonic movements. The formation conditions of large natural gas fields in the Bohai Bay Basin have been elusive. Based on the exploration results of Bohai Bay Basin and comparison with large gas fields in China and abroad, the formation conditions of conventional large-scale natural gas reservoirs in the Bohai Bay Basin were examined from accumulation dynamics, structure and sedimentation. The results show that the formation conditions of conventional large natural gas reservoirs in Bohai Bay Basin mainly include one core element and two key elements. The core factor is the strong sealing of Paleogene "quilt-like" overpressure mudstone. The two key factors include the rapid maturation and high-intensity gas generation of source rock in the late stage and large scale reservoir. On this basis, large-scale nature gas accumulation models in the Bohai Bay Basin have been worked out, including regional overpressure mudstone enriching model, local overpressure mudstone depleting model, sand-rich sedimentary subsag depleting model and late strongly-developed fault depleting model. It is found that Bozhong sag, northern Liaozhong sag and Banqiao sag have favorable conditions for the formation of large-scale natural gas reservoirs, and are worth exploring. The study results have important guidance for exploration of large scale natural gas reservoirs in the Bohai Bay Basin.
Yong’an XUE , Deying WANG . Formation conditions and exploration direction of large natural gas reservoirs in the oil-prone Bohai Bay Basin, East China[J]. Petroleum Exploration and Development, 2020 , 47(2) : 280 -291 . DOI: 10.1016/S1876-3804(20)60046-5
| [1] | HU Anping, ZHOU Qinghua . The largest gas field in the world: North-south Pars gas field. Natural Gas Geoscience, 2006,17(6):753-759. |
| [2] | ZHANG Kang . Analyzing the changes of giant gas fields in the world in recent ten years. Natural Gas Industry, 2004,24(6):127-130. |
| [3] | WANG Yan, SHEN Benke . Study on causes of gas accumulation in Rankin Platform, North Carnarvon Basin in Australia. China Petroleum Exploration, 2012,17(3):77-82. |
| [4] | LAN Lei, SUN Yumei, WANG Ke . Genetic types and sources of natural gas in deep water areas in South Gabon Sub-basin. China Petroleum Exploration, 2017,22(2):67-73. |
| [5] | XUE Liangqing, YANG Fuzhong, MA Haizhen , et al. Petroleum play analysis of the PetroChina Contract Blocks in the South Sumatra Basin. Petroleum Exploration and Development, 2005,32(3):130-134. |
| [6] | GALUSHKIN Y I, MARDIANZA A . Change in the degree of catagenesis and hydrocarbon generation in the sedimentary rocks of the South Sumatra Basin, Indonesia. Geochemistry International, 2014,52(8):643-653. |
| [7] | WEI Guoqi, LI Jian, XIE Zengye , et al. Reservoir geology and exploration theories of large gas fields in China. Acta Petrolei Sinica, 2013,34(S1):1-13. |
| [8] | MA Xinhua, YANG Yu, WEN Long , et al. Distribution and exploration direction of medium and large-sized marine carbonate gas fields in Sichuan Basin, SW China. Petroleum Exploration and Development, 2019,46(1):1-13. |
| [9] | MA Yongsheng, CAI Xunyu, ZHAO Peirong , et al. Distribution and further exploration of the large-medium sized gas fields in Sichuan Basin. Acta Petrolei Sinica, 2010,31(3):347-354. |
| [10] | ZHU Weilin. Paleolimnology and hydrocarbon source conditions of Cenozoic oil-bearing basins in offshore China. Beijing: Geological Publishing House, 2009. |
| [11] | WANG Xiaofu, WANG Chengshan, FENG Zihui , et al. Filling types of terrestrial basin and their control on the formation of hydrocarbon source rocks: Taking Songliao Basin as an example. Earth Science Frontiers, 2009,16(5):192-200. |
| [12] | JIANG Youlu . Geological characteristics and formation conditions of the natural gas accumulation belts in Bohai Bay Basin. Journal of the University of Petroleum, China (Edition of Natural Sciences), 1999,23(5):9-13. |
| [13] | XUE Yong’an. Study on gas accumulation characteristics and exploration direction of large and medium-sized gas fields in Bohai Sea. Qingdao: China University of Petroleum Press, 2014. |
| [14] | WANG Tingbin . Distribution of large-middle sized gas fields in China: Geological characteristics and key controlling factors. Petroleum Exploration and Development, 2005,32(4):1-8. |
| [15] | WANG Tao. Theoretical basis and practice of natural gas geology in China. Beijing: Petroleum Industry Press, 1997. |
| [16] | WANG Genzhao. XIA Qinglong . Natural gas distribution, main controls over accumulation and exploration targets in Bohai sea. China Offshore Oil and Gas, 2009,21(1):15-18. |
| [17] | XIE Yuhong, ZHANG Gongcheng, SHEN Pu , et al. Formation conditions and exploration direction of large gas field in Bozhong sag of Bohai Bay Basin. Acta Petrolei Sinica, 2018,39(11):1199-1210. |
| [18] | ZHAO Changyi, LI Yongxin, WANG Jufeng , et al. Genetic types and exploration potential of natural gas in Bohai Bay Basin. Natural Gas Geoscience, 2019,30(6):783-789. |
| [19] | DAI Jinxing, SONG Yan, ZHANG Houfu , et al. China’s gas accumulation zone. Beijing: Geological Publishing House, 1997. |
| [20] | LI Desheng . The geology and structural characteristics of Bohai Bay, China. Acta Petrolei Sinica, 1980,1(1):6-20. |
| [21] | QI Jiafu, ZHANG Yiwei, LU Kezheng , et al. Cenozoic tectonic evolution in Bohai Bay Basin province. Journal of the University of Petroleum, China (Edition of Natural Sciences), 1995,19(S1):1-6. |
| [22] | LI Sanzhong, SUO Yanhui, DAI Liming , et al. Development of the Bohai Bay Basin and destruction of the North China Craton. Earth Science Frontiers, 2010,17(4):64-89. |
| [23] | HOU Guiting, QIAN Xianglin, CAI Dongsheng . The tectonic evolution of Bohai Basin in Mesozoic and Cenozoic Time. Acta Scicentiarum Naturalum Universitis Pekinesis, 2001,37(6):845-851. |
| [24] | GONG Zaisheng, WANG Guochun . Neotectonism and late hydrocarbon accumulation in Bohai sea. Acta Petrolei Sinica, 2001,22(2):1-7. |
| [25] | GONG Zaisheng . Neotectonics and petroleum accumulation in offshore Chinese basins. Earth Science, 2004,29(5):513-517. |
| [26] | DAI Jinxing, CHEN Jianfa, ZHONG Ningning , et al. China’s large gas fields and their gas sources. Beijing: Petroleum Industry Press, 2003. |
| [27] | HAO Shisheng. Natural gas transport dynamic equilibrium and its application. Beijing: Petroleum Industry Press, 1994. |
| [28] | BRADLEY J S, POWLEY D E . Pressure compartment in sedimentary basin: A review. AAPG Memoir, 1994,61:3-25. |
| [29] | OTROLEVA P . Basin compartment tasion: Difinition and mechanisms. AAPG Memoir, 1994,61:39-52. |
| [30] | DAI Jinxing, WANG Tingbin, SONG Yan , et al. Formation conditions and distribution rules of large gas fields in China. Beijing: Geological Publishing House, 1997. |
| [31] | JIA Chengzao, ZHAO Wenzhi, WEI Guoqi . The recent progress and developing tendency in natural gas exploration and its studies seen at abroad. Natural Gas Industry, 2002,22(4):5-9. |
| [32] | KANG Zhulin. Introduction to large and medium-sized gas fields in China. Beijing: Petroleum Industry Press, 2000. |
| [33] | DAI Jinxing, XIA Xinyu , HONG feng. Natural gas geology accelerated the growth of natural gas reserve in largr scale in China. Xinjiang Petroleum Geology, 2002,23(5):357-365. |
| [34] | XUE Yong’an, LIU Tinghai, WANG Yingbin , et al. Main controlling factors and mode of natural gas accumulation in Bohai Bay area. Petroleum Exploration and Development, 2007,34(5):521-533. |
| [35] | LYU Yanfang, FU Guang, YU Dan . Comprehensive evaluation of sealing ability of cap rock in China’s large and medium gas field sand their contribution to gas accumulation. Oil & Gas Geology, 2005,26(6):742-753. |
| [36] | WANG Yingmin, DENG Lin, HE Xiaosu , et al. Theory and method of simulation of dynamic process of accumulation in marine residual basin. Beijing: Geological Publishing House, 1998. |
| [37] | JIANG Youlu, ZHA Ming. Petroleum and natural gas geology and exploration. Beijing: Petroleum Industry Press, 2010. |
| [38] | ZHAO Xianzheng, ZHANG Wanxuan . Types, distribution sequence model and enrichment of natural gas pools in Bohai Gulf Basin. Journal of the University of Petroleum, China (Edition of Natural Science), 1991,15(2):1-9. |
| [39] | LIU Guangdi, LI Jian, LI Jingming , et al. The controls and the assessment method for the effectiveness of natural gas migration and accumulation process. Natural Gas Geoscience, 2015,16(1):1-6. |
| [40] | LU Shuangfang, FU Guang, WANG Pengyan. Quantitative study on main controlling factors of natural gas enrichment. Beijing: Petroleum Industry Press, 2002. |
| [41] | LUO Xiaorong . Review of hydrocarbon migration and accumulation dynamics. Natural Gas Geoscience, 2003,14(5):337-346. |
| [42] | WANG Guochun . Tanlu fault and reverse structure and flower structure in Bohai sea. China Offshore Oil and Gas, 1998,12(5):289-295. |
| [43] | WANG Deying, YU Hongzhong, YU Haibo , et al. An analysis and refined depiction of lithologic trap development under the framework of Neogene sequence stratigraphy in Bohai water: A case of lower member of Minghuazhen Formation in Shijiutuo Rise. China Offshore Oil and Gas, 2012,24(S1):23-27. |
| [44] | LI Sitian . Basin geodynamics background of formation of huge petroleum systems. Earth Science, 2004,29(5):505-512. |
| [45] | LI Zhenduo, HU Yijun, TAN Fang . A study of the deep basin gas in the Upper Paleozoic in Eerduosi Basin. Natural Gas Industry, 1998,18(3):10-16. |
| [46] | MA Qifu, CHEN Sizhong. Overpressure basins and hydrocarbon distribution. Beijing: Geological Publishing House, 2000. |
| [47] | HAO Fang, CAI Dongsheng, ZOU Huayao , et al. Overpressure- tectonic activity controlled fluid flow and rapid petroleum accumulation in Bozhong Depression, Bohai Bay Basin. Earth Science, 2004,29(5):518-524. |
| [48] | XUE Yong’an, LI Huiyong . Large condensate gas field in deep Archean metamorphic buried hill in Bohai sea: Discovery and geological significance. China Offshore Oil and Gas, 2018,30(3):1-9. |
| [49] | XUE Yong’an . The breakthrough of the deep-buried gas exploration in the Bohai Sea area andits enlightenment. Natural Gas Industry, 2019,39(1):11-20. |
| [50] | XU Changgui, YU Haibo, WANG Jun , et al. Formation conditions and accumulation characteristics of Bozhong 19-6 large condensate gas field in offshore Bohai Bay Basin. Petroleum Exploration and Development, 2019,46(1):25-38. |
| [51] | XUE Yong’an . New breakthroughs in hydrocarbon exploration in the Bohai sea area driven by understanding innovation: A review of major exploration progresses of Bohai sea area in recent years. China Offshore Oil and Gas, 2018,30(2):1-8. |
| [52] | GE Jiandang, ZHU Weilin . An analysis of offshore gas exploration potential in terms of comparison between offshore and onshore areas in Bohai Bay Basin. China Offshore Oil and Gas, 2001,15(2):93-98. |
/
| 〈 |
|
〉 |