通过对深层天然气形成的地质条件的研究认为,松辽盆地北部深层由多个断陷组成,发育东部、中部、西部3个断陷带,东部断陷带徐家围子断陷地层厚度大、埋藏适中,是勘探重点;断陷期沙河子组湖相泥岩厚度大,分布范围广,生烃条件优越,是主要烃源岩;以基岩、火山岩和碎屑岩为储集层,在登娄库组二段与泉头组一段—二段区域盖层控制下发育上部、中部、下部3套生储盖组合,以中部组合为主;发育基岩风化壳、源储一体致密气、源内火山岩、古隆起带盖层4种成藏模式,营城组火山岩和沙河子组致密砂砾岩是主要含气层系。在地质条件分析基础上,采用成因法、类比法重新计算主要断陷、重点勘探层系资源量累计15 885.67×108m3。依据地质条件及剩余资源规模等因素,进一步明确了下步勘探层次及方向:在徐家围子断陷可通过“精细火山岩,加快致密气”扩大储量规模;在莺山—双城断馅、古中央隆起带加大甩开力度,扩大勘探成果;在林甸—古龙等断陷加强风险勘探,力争实现突破。
According to the geological conditions of the accumulation of deep gas,the northern Songliao Basin is composed of multiple fault depressions and three fault depression zones in eastern,central and western regions.In the east fault depression zone,the fault depression strata are of great thickness and moderate burial depth,which is the focus of exploration.The lacustrine mudstone of Shahezi Formation in fault depression period is the main source rocks with large thickness,wide distribution and favorable hydrocarbon generation conditions.With bedrocks,volcanic rocks and clastic rocks as reservoir,the three sets of reservoir caps (upper,middle and lower) are developed under the control of 2nd member of Denglouku Formation and 1st and 2nd members of Quantou Formation.The central combination is the dominant.It develops four kinds of accumulation models:Bedrock weathering shells,source storage integrated tight gas,source inner volcanic rock,and paleo-uplift belt cover layer.Volcanic rocks of Yingcheng Formation and tight grit rocks of Shahezi Formation are mainly gas-bearing systems.Based on the analyses of geological conditions,adopt genetic method and analogy method are used to recalculate the main fault depression and key exploration layers.The accumulative amount of resources is 1.59 trillion cubic meters.According to geological conditions and the scale of remaining resource,the next step exploration level and direction are further clarified.Among them,the “refining volcanic rock,accelerating tight gas” of Xujiaweizi fault depression is a practical field for the increase of reserve.To increase exploration degree and expand exploration scale in Yingshan-Shuangcheng fault depression and paleo-central uplift beltis an important replacement field.Strengthen risk exploration in Lindian-Gulong fault depression and strive for breakthrough.
[1]Hou Qijun,Feng Zhiqiang,Feng Zihui,et al.Continental Petroleum Geology in Songliao Basin[M].Beijing: Petroleum Industry Press,2009:1-15.
侯启军,冯志强,冯子辉,等.松辽盆地陆相石油地质学[M].北京:石油工业出版社,2009:1-15.
[2]Yang Wanli.Petroleum Geology of the Songliao Continental Sedimentary Basin[M].Beijing: Petroleum Industry Press,1985:1-16.
杨万里.松辽陆相盆地石油地质[M].北京:石油工业出版社,1985:1-16.
[3]Ren Yanguang,Qi Jingshun,Dong Jinghai,et al.Geologic features and exploratory direction of deep gas in the north of Songliao Basin[J].Petroleum Geology and Oilfield Development in Daqing,2009,28(5):28-32.
任延广,齐景顺,董景海,等.松辽盆地北部深层天然气地质特征及勘探方向[J].大庆石油地质与开发,2009,28(5):28-32.
[4]Feng Zhiqiang.Volcanic rocks as prolific gas reservoir:A case study from the Qingshen Gas Field in the Songliao Basin,NE China[J].Marine and Petroleum Geology,2008,25(1):416-432.
[5]Feng Zihui,Yin Changhai,Qi Jingshun,et al.Main factors controlling hydrocarbon accumulation in large volcanic in large Gas Fields:A case study of the Qingshen gas field in the Songliao Basin[J].Acta Petrologica Sinica,2010,26(1):21-32.
冯子辉,印长海,齐景顺,等.大型火山岩气田成藏控制因素研究——以松辽盆地庆深气田为例[J].岩石学报,2010,26(1):21-32.
[6]Hu Wangshui,Lu Bingjin,Zhang Wenjun,et al.An approach to tectonic evolution and dynamics of the Songliao Basin[J].Chinese Journal of Geology,2005,40(1):16-31.
胡望水,吕炳金,张文军,等.松辽盆地构造演化及成盆动力学探讨[J].地质科学,2005,40(1):16-31.
[7]Chi Yuanlin,Yun Jinbiao,Meng Qi’an,et al.Deep Structure and Basin Dynamics of Songliao Basin and Hydrocarbon Accumulation[M].Beijing: Petroleum Industry Press,2012:16-35.
迟元林,云金表,蒙启安,等.松辽盆地深部结构及成盆动力学与油气聚集[M].北京:石油工业出版社,2012:16-35.
[8]Ren Yanguang,Zhu Defeng,Wan Chuanbiao,et al.Geological characteristics of deep layers in the North of Songliao Basin and orientation for Natural gas exploration[J].Pertroleum Geology,2004,33(4):12-16.
任延广,朱德丰,万传彪,等.松辽盆地北部深层地质特征与天然气勘探方向[J].石油地质,2004,33(4):12-16.
[9]Zhang Wenjing,Ren Yanguang,Chen Junliang,et al.The characteristic of compression deformation of Xujiaweizi Default in Songliao Basin[J].Petroleum Geology and Oilfield Development in Daqing,2008,27(4):21-25.
张文婧,任延广,陈均亮,等.松辽盆地徐家围子断陷挤压变形特征[J].大庆石油地质与开发,2008,27(4):21-25.
[10]Meng Qi’an,Men Guangtian,Zhang Zhenghe.Prediction method and application of deep volcanic rock mass and facies in Songliao Basin[J].Petroleum Geology and Oilfield Development in Daqing,2001,20(3): 21-24.
蒙启安,门广田,张正和.松辽盆地深层火山岩体、岩相预测方法及应用[J]大庆石油地质与开发,2001,20(3):21-24.
[11]Liu Zhaojun,Wang Dongpo,Liu Li,et al.Sedimentary characteristics of Cretaceous in Songliao Basin[J].Journal of Geology,1992,66 (4): 327-337.
刘招君,王东坡,刘立,等.松辽盆地白垩纪沉积特征[J].地质学报,1992,66(4):327-337.
[12]Huang Qinghua,Wu Huaichun,Wan Xiaoqiao,et al.New progress of integrated chronostratigraphy of the cretaceous in Songliao Basin[J].Journal of Stratigraphy,2011,35(3):250-256.
黄清华,吴怀春,万晓樵,等.松辽盆地白垩系综合年代地层学研究新进展[J].地层学杂志,2011,35(3):250-256.
[13]Dai Jinxing.Proceedings of Natural Gas Geology and Geochemistry:Volume III[M].Beijing: Petroleum Industry Press,2002:117-129.
戴金星.天然气地质和地球化学论文集:卷三[M].北京:石油工业出版社,2002:117-129.
[14]Wang Zhihong,Luo Xia,Li Jingkun,et al.Effective source rock forecasting in deep layers of northern Songliao Basin[J].Natural Gas Geoscience,2008,19 (2): 204-209.
王志宏,罗霞,李景坤,等.松辽盆地北部深层有效烃源岩分布预测[J].天然气地球科学,2008,19 (2): 204-209.
[15]Feng Zihui,Ren Yanguang,Wang Cheng,et al.Study on inclusion of deep buried igneous reservoir and forming of gas pool in Songliao Basin[J].Natural Gas Geoscience,2003,14(6):210-226.
冯子辉,任延广,王成,等.松辽盆地深层火山岩储层包裹体及天然气成藏期研究[J]天然气地球科学,2003,14(6):210-226.
[16]Feng Zihui,Wang Cheng,Shao Hongmei,et al.Characteristics and Diagenetic Evolution of Volcanic Reservoirs in the Northern Songliao Basin[M].Beijing: Science and Technology Press,2015:17-35.
冯子辉,王成,邵红梅,等.松辽盆地北部火山岩储层特征及成岩演化[M].北京;科学技术出版社,2015:17-35.
[17][JP2]Du Jinhu,He Haiqing,Zhao Xianzheng,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.
杜金虎,何海清,赵贤正,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.
[18]Du Jinhu.Analysis of natural gas accumulation conditions and exploration perspective in the central paleo-uplift belt (north),Songliao Basin[J].China Petroleum Exploration,2017,22(5):1-14.
杜金虎.松辽盆地中央古隆起带(北部)天然气成藏条件分析及勘探前景[J].中国石油勘探,2017,22(5):1-14.
[19]Shao Hongmei,Mao Qingyun,Jiang Hongqi.Characteristics of volcanic gas reservoir in Yingcheng Formation of Xujiaweizi fault depression[J].Natural Gas Industry,2006,26(6): 29-32.
邵红梅,茂庆云,姜洪启.徐家围子断陷营城组火山岩气藏储层特征[J].天然气工业,2006,26(6):29-32.
[20]Wang Cheng,Ma Mingxia,Zhang Minzhi,et al.Characteristics of deep gas reservoirs in the northern Songliao Basin[J].Natural Gas Industry,2006,26(6):25-28.
王成,马明侠,张民志,等.松辽盆地北部深层天然气储层特征[J].天然气工业,2006,26(6):25-28.
[21]Liu Qi,Shu Ping,Li Songguang.Integrated description technique for deep volcanic gas reservoir in the northern Songliao Basin[J].Petroleum Geology and Oilfield Development in Daqing,2005,24 (3): 21-23.
刘启,舒萍,李松光.松辽盆地北部深层火山岩气藏综合描述技术[J].大庆石油地质与开发,2005,24(3):21-23.
[22]Qu Yanming,Shu Ping,Wang Qiang.Study on volcanic reservoir characteristics of Xingcheng Gas Field[J].Natural Gas Exploration and Development,2006,29 (3): 13-16.
曲延明,舒萍,王强.兴城气田火山岩储层特征研究[J].天然气勘探与开发,2006,29(3):13-16.
[23]Han Gang,Zhang Wenjing,Ren Yanguang,et al.Volcanic rock reservoirs mechanism in the northern Songliao Basin Xujiaweizi fault depression[J].Progress in Geophysics,2011,26(6):2114-2121.
韩刚,张文婧,任延广,等.松辽盆地北部徐家围子断陷火山岩储层成因机制[J].地球物理学进展,2011,26(6):2114-2121.
[24]Liu Chenglin,Du Yunhua,Gao Jiayu,et al.Diagenesis and porosity evolution of deep volcanic reservoirs in Songliao Basin[J].Lithologic Reservoirs,2008,20(4): 33-37.
刘成林,杜蕴华,高嘉玉,等.松辽盆地深层火山岩储层成岩作用与孔隙演化[J].岩性油气藏,2008,20(4):33-37.
[25]Zhou Xiang,Shu Ping,Yu Shiquan,et al.Reservoir characteristics an integrated evaluation of volcanic rock in member 1,Yingcheng Formation,Xushen 9 block,Songliao Basin[J].Natural Gas Geoscience,2018,29(1):62-72.
周翔,舒萍,于士泉,等.松辽盆地徐深9区块营一段火山岩气藏储层特征及综合评价[J].天然气地球科学,2018,29(1):62-72.
[26]Zhang Xiaodong,Yu Jing,Zhang Dazhi,et al.Accumulating conditions and exploration prospects for Shahezi Formation tight sandstone gas in Xujiaweizi fault depression[J].Petroleum Geology and Oilfield Development in Daqing,2014,33(5):86-91.
张晓东,于晶,张大智,等.徐家围子断陷沙河子组致密气成藏条件及勘探前景[J].大庆石油地质与开发,2014,33(5):86-91.
[27]Hou Qijun,Zhao Zhikui,Wang Liwu,et al.Volcanic Gas Reservoir-Exploration Theory and Practice of Large Volcanic Gas Reservoirs in Southern Songliao Basin[M].Beijing: Science and Technology Press,2009:169-175.
侯启军,赵志魁,王立武,等.火山岩气藏—松辽盆地南部大型火山岩气藏勘探理论与实践[M].北京:科学技术出版社,2009:169-175.
[28]Men Guangtian,Yang Fengping,Yin Changhai,et al.Volcanic reservoir type and controlling factors of accumulation in Xushen Gas Field[J].Petroleum Geology and Oilfield Development in Daqing,2009,28(5):34-39.
门广田,杨峰平,印长海,等.徐深气田火山岩气藏类型与成藏控制因素[J].大庆石油地质与开发,2009,28(5):34-39.
[29]Liu Chao.Source rock and tight conglomerate gas resource potential evaluation in Shahezi Formation of Xujiaweizi Depression,Songliao Basin[J].Natural Gas Geoscience,2017,28(3):429-437.
刘超.松辽盆地徐家围子地区沙河子组气源岩与致密砂砾岩气资源潜力评价[J].天然气地球科学,2017,28(3):429-437.