松辽盆地徐家围子断陷沙河子组储层特征及控制因素

doi:10.11743/ogg20190110

摘要/Abstract

摘要：

徐家围子断陷沙河子组是松辽盆地北部近期天然气勘探的主要目标，这类致密砂砾岩气层的储层特征及控制因素研究是首要的。通过分析其白垩系早期拉张构造背景条件下形成的一套断陷沉积，纵向上可划分为4个三级层序，各层序在断陷湖盆陡坡带和缓坡带发育扇三角洲和辫状河三角洲沉积。研究表明其储层主要为砂砾岩和含砾粗砂岩等粗碎屑岩。沙河子组储层孔隙包括原生粒间孔和次生孔隙，孔隙度主要分布在2%~8%，渗透率多小于0.1×10^-3 μm²，为致密储层。沙河子组储层发育的控制因素包括埋深、沉积相带、岩石类型和次生成岩作用，埋藏浅的扇三角洲（辫状河三角洲）前缘、平原相砂砾岩储层物性好，含火山碎屑物质的砂岩、砂砾岩易于形成溶蚀孔隙，改善储集性能。徐家围子断陷沙河子组有利储层主要位于埋深小于4 000 m的安达东、西两侧的扇三角洲前缘、平原区和徐东、徐西的构造高部位扇体发育区，埋藏较浅的安达中部滨浅湖相和埋藏较深的徐东、徐西斜坡扇体发育区也是较有利的储层发育区。

关键词: 储层特征, 有利区预测, 致密砂砾岩, 沙河子组, 徐家围子断陷, 松辽盆地

Abstract:

The Shahezi Formation in the Xujiaweizi Fault Depression is the main target for recent natural gas exploration in the northern Songliao Basin.It is of great significance to study the reservoir characteristics and controlling factors of such tight glutenite gas reservoir.The deposits in the fault depression formed in an early Cretaceous extensional tectonic environment,can be divided into four third-order sequences vertically,each of which develops depositions of fandelta and braided delta in the steep and gentle slope zones of the rifted lacustrine basin.The reservoir isdominated by coarse clastic rocks such as glutenites and pebbly coarse sandstones.The reservoir pores of the Shahezi Formation consist of primary intergranular pores and secondary pores,with porosity mainly in the range of 2% to 8% and with permeability usually less than 0.1×10^-3μm²,indicating a tight reservoir.The controlling factors for reservoir development in the Shahezi Formation include burial depth,sedimentary facies belt,rock type and epigenesis.The fan delta front(braided delta)with shallow depth and glutenite reservoir of plain faciesare characteristic of good reservoir quality,while the sandstones and glutenites with pyroclastic materials,tend to form dissolution pores and improve the reservoir performance.The favorable reservoirs of the Shahezi Formation in the Xujiaweizi Fault Depression are mainly located in the fan-delta front and the plain area with a burial depth less than 4 000 m at the east and west sides of Anda,as well as in the higher part of fan development zone of Xudong and Xuxi areas.The shore-shallow lake facies with shallow depth in central Anda and the Xudong and Xuxi slope fan development zones with deep depth are also favorable zones for reservoir development.

Key words: reservoir characteristic, favorable region prediction, tight glutenite, Shahezi Formation, Xujiaweizi Fault Depression, Songliao Basin

中图分类号:

TE122.2

邵曌一,吴朝东,张大智,等. 松辽盆地徐家围子断陷沙河子组储层特征及控制因素[J]. 石油与天然气地质, 2019, 40(1): 101-108. doi: 10.11743/ogg20190110 Shao Zhaoyi,Wu Chaodong,Zhang Dazhi,et al. Reservoir characteristics and controlling factors of Shahezi Formation in Xujiaweizi Fault Depression,Songliao Basin[J]. Oil & Gas Geology, 2019, 40(1): 101-108. doi: 10.11743/ogg20190110

参考文献

[1] 印长海,绪磊,杨亮,等.莺山凹陷营城组火山岩储层特征及成因[J].大庆石油地质与开发,2014,5:92-96. Yin Changhai,Xu Lei,Yang Liang,et al.Characteristics and genesis of volcanic reservoirs in the Yingcheng Formation of the Lushan depression[J].Petroleum Geology & Development in Daqing,2014,5:92-96.
[2] 刘计勇,兰正凯,皮定成,等.松辽盆地徐家围子断陷层火山岩储层特征[J].内蒙古石油化工,2009,24:172-173. Liu Jiyong,Lan Zhengkai,Pi Dingcheng,et al.Characteristics of volcanic reservoirs in Xujiaweizi fault depression,Songliao Basin[J].Inner Mongolia Petrochemical Industry,2009,24:172-173.
[3] 王民,卢双舫,王文广,等.火山岩储层天然气运聚成藏模拟:以徐家围子断陷深层为例[J].地球科学-中国地质大学学报,2017,42(3):397-409. Wang Min,Lu Shuangwei,Wang Wenguang,et al.Gas Migration and Accumulation Modelling in Volcanic Reservoirs,Xujiaweizi Fault Depression,Songliao Basin[J].Journal of Earth Science,2017,42(3):397-409.
[4] 周义博.徐家围子断陷气源断裂输导天然气能力评价[J].大庆石油地质与开发,2016,35(1):19-24. Zhou Yibo.Evaluation of the Gas Transporting Capacity for The source-rock Faults in Xujiaweizi Fault Depression[J].Petroleum Geology & Development in Daqing,2016,35(1):19-24.
[5] 黄玉龙,刘春生,张晶晶,等.松辽盆地白垩系火山岩气藏有效储层特征及成因[J].天然气地球科学,2017,28(3):420-428. Huang Yulong,Liu Chunsheng,Zhang Jingjing,et al.characteristics and genesis of the effective volcanic gas reservoirs of the lower,Songliao Basin[J].Natural Gas Geoscience,2017,28(3):420-428.
[6] 魏翔宇,高有峰,魏琴,等.蚀变对中基性火山岩储层的控制作用:以松辽盆地徐家围子断陷下白垩统营城组为例[J].世界地质,2017,36(2):541-551. Wei Xiangyu,Gao Youfeng,Wei Qin,et al.Control effect of alteration on medium-basic volcanic reservoirs:A case study of the Lower Cretaceous Yingcheng Formation in the Xujiaweizi fault depression,Songliao Basin[J].Global Geology,2017,36(2):541-551.
[7] 付广,康德江.松辽盆地北部深层含气系统演化及对天然气成藏与分布的控制作用[J].油气地质与采收率,2006,2:30-34. Fu Guang,Kang Dejiang.Evolution of deep gas-bearing systems in the northern Songliao Basin and its control on gas accumulation and distribution[J].Petroleum Geology and Recovery Efficiency,2006,2:30-34.
[8] 吴河勇,冯子辉,杨永斌,等.松辽盆地北部深层天然气勘探风险评价[J].天然气工业,2006,6:6-9. Wu Heyong,Feng Zihui,Yang Yongbin,et al.Risk assessment of deep natural gas exploration in the northern Songliao Basin[J].Natural Gas Industry,2006,6:6-9.
[9] 巩磊,高帅,吴佳朋,等.徐家围子断陷营城组火山岩裂缝与天然气成藏[J].大地构造与成矿学,2017,41(2):283-290. Gong Lei,Gao Shuai,Wu Jiapeng,et al.Natural Gas Accumulation and Fractures in Volcanic Rocks of Yingcheng Formation in Xujiaweizi Fault Depression[J].Geotectonica et Metallogenia,2017,41(2):283-290.
[10] 柳成志,王子佳.徐家围子断陷沙河子组储层特征研究[J].石油化工高等学校学报,2014,1:52-55. Liu Chengzhi,Wang Zijia.Reservoir Characteristics of Shahezi Group Xujiaweizi Fault Depression[J].Journal of Petrochemical Universities,2014,1:52-55.
[11] 蔡全升,胡明毅,胡忠贵,等.强烈断陷期小型湖盆沉积充填演化特征——以松辽盆地徐家围子断陷宋站地区沙河子组为例[J].石油与天然气地质,2017,38(2):259-269. Cai Quansheng,Hu Mingyi,Hu Zhonggui,et al.Sedinemtary filling evolution of small-scale lake basins during intensive faulting:an example from the Shahezi Formation of Songzhan region in Xujiaweizi fault depression,Songliao Basin[J].Oil & Gas Geology,2017,38(2):259-269.
[12] 王义章.松辽盆地北部徐家围子断陷深层烃源岩评价及分布特征研究[J].西部探矿工程,2017,29(9):75-77,81. Wang Yizhang.Evaluation and distribution characteristics of deep source rocks in Xujiaweizi fault depression,northern Songliao Basin[J].West-china Exploration Engineering,2017,29(9):75-77,81.
[13] 张尔华,姜传金,张元高,等.徐家围子断陷深层结构形成与演化的探讨[J].岩石学报,2010,1:149-157. Zhang Erhua,Jiang Chuanjin,Zhang Yuangao,et al.Discussion on the formation and evolution of deep structures in Xujiaweizi fault depression[J].Acta Petrologica Sinica,2010,1:149-157.
[14] 蒙启安,杨永斌,金明玉.断裂对松辽盆地庆深大气田的控制作用[J].石油学报,2006,S1:14-17. Meng Qi'an,Yang Yongbin,Jin Mingyu.Control of faults on Qingshen gas field in Songliao Basin[J].Acta Petrolei Sinica,2006,S1:14-17.
[15] 赵静.致密砂砾岩有效储层主控因素——以松辽盆地南部A断陷为例[J].断块油气田,2017,2:165-168. Zhao Jing.Main controlling factors of effective reservoir of tight glutenite——Taking A fault zone in southern Songliao Basin as an example[J].Fault-Block Oil and Gas Field,2017,2:165-168.
[16] 高阳,李忠新.基于主成分分析的致密砂砾岩孔隙度测井评价方法[J].沉积学报,2016,4:716-724. Gao Yang,Li Zhongxin.Main controlling factors of tight sandy conglomerate effective reservoir:a case study of A Fault Depression in southern Songliao Basin[J].Journal of Sedimentology,2016,4:716-724.
[17] 陆加敏,刘超.断陷盆地致密砂砾岩气成藏条件和资源潜力——以松辽盆地徐家围子断陷下白垩统沙河子组为例[J].中国石油勘探,2016,21(2):53-60. Lu Jiamin,Liu Chao.Accumulation of glutenite gas reservoir conditions and resource potential in faulted basins:A case study of the Lower Cretaceous Shahezi Formation in the Xujiaweizi fault depression of the Songliao Basin[J].China Petroleum Exploration[J].2016,21(2):53-60.
[18] 王晓莲.徐家围子断陷沙河子组致密储层分级评价[J].特种油气藏,2016,23(3):113-117. Wang Xiaolian.Classification of tight reservoirs in the Shahezi Formation of Xujiaweizi Fault Depression[J].Specialty Oil and Gas Reservoirs,2016,23(3):113-117.
[19] 陈俊安,赵泽辉,江黎.松辽盆地徐家围子断陷沙河子组层序地层格架建立与模式研究[J].科学技术与工程,2014,10:183-190. Chen Junan,Zhao Zehui,Jiang Li.Establishment and model of sequence stratigraphic framework of Shahezi Formation in Xujiaweizi fault depression,Songliao Basin[J].Science Technology and Engineering,2014,10:183-190.
[20] 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].中国石油勘探,2004,4:12-18. Ren Yanguang,Zhu Defeng,Wan Chuanqi,et al.Deep geological characteristics and natural gas exploration direction in the northern Songliao Basin[J].China Petroleum Exploration,2004,4:12-18.
[21] 蔡来星,卢双舫,巩兴会,等.徐家围子断陷南部沙河子组层序地层格架及沉积特征[J].大庆石油地质与开发,2015,34(2):26-33. Cai Laixing,Lu Shuangwei,Gong Xinghui,et al.Sequence stratigraphic framework and sedimentary characteristics of the Shahezi Formation in the southern Xujiaweizi fault depression[J].Petroleum Geology & Development in Daqing,2015,34(2):26-33.
[22] 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):429-438. Liu Chao.Evaluation of gas source rocks and tight glutenite gas resources potential of Shahezi Formation in Xujiaweizi area,Songliao Basin[J].Natural Gas Geoscience,2017,28(3):429-438.
[23] 卢双舫,谷美维,张飞飞,等.徐家围子断陷沙河子组致密砂砾岩气藏的成藏期次及类型划分[J].天然气工业,2017,37(6):12-21. Lu Shuangwei,Gu Meiwei,Zhang Feifei,et al.The accumulation period and type division of tight glutenite gas reservoirs in Shahezi Formation of Xujiaweizi fault depression[J].Natural Gas Industry,2017,37(6):12-21.
[24] 肖丽华,张磊,田伟志,等.徐家围子断陷深层致密砂砾岩优质储层预测[J].中南大学学报(自然科学版),2014,4:1174-1182. Xiao Lihua,Zhang Lei,Tian Weizhi,et al.Prediction of high-quality reservoirs of deep tight glutenite in Xujiaweizi fault depression[J].Journal of Central South University:Natural Science,2014,4:1174-1182.
[25] 王雪峰.徐家围子断陷营城组火山岩断盖时空匹配及其对天然气成藏的控制作用[J].大庆石油地质与开发,2017,36(4):9-14. Wang Xuefeng.Time-space matching of volcanic rock faults in the Yingcheng Formation of Xujiaweizi fault depression and its control on natural gas accumulation[J].Petroleum Geology & Development in Daqing,2017,36(4):9-14.
[26] 司马立强,杨国栋,吴丰,等.准噶尔盆地玛湖凹陷百口泉组致密砂砾岩孔隙分形特征及影响因素探讨[J].测井技术,2016,5:609-616. Sima Liqiang,Yang Guodong,Wu Feng,et al.Pore fractal characteristics and influencing factors of tight glutenite in Baikouquan Formation of Mahu Sag,Junggar Basin[J].Well Logging Technology,2016,5:609-616.
[27] 宋延杰,胡凯,唐晓敏,等.基于孔隙曲折度与等效岩石元素理论的致密砂砾岩导电模型[J].东北石油大学学报,2015,1:9-16. Song Yanjie,Hu Kai,Tang Xiaomin,et al.Conductive model of tight glutenite based on pore tortuosity and equivalent rock element theory[J].Journal of Northeast Petroleum University,2015,1:9-16.
[28] 刘庆辉.安达南部地区沙河子组地层致密砂砾岩储层特征与预测[J].长江大学学报(自科版),2014,16:38-40. Liu Qinghui.Characteristics and prediction of tight glutenite reservoirs in the Shahezi Formation in the southern part of Anda[J].Journal of Yangtze University(Natural Science),.2014,16:38-40.
[29] 冉法海徐家围子断陷营城组火山岩储层微观孔隙结构特征[J].西部探矿工程,2013,11:53-54. Ran Fahai.Micro-pore structure characteristics of volcanic reservoirs in the Yingcheng Formation of the Xujiaweizi fault depression[J].West-china Exploration Engineering,2014,16:38-40.
[30] 孟元林,梁洪涛,魏巍,等.浊沸石溶蚀过程的热力学计算与次生孔隙发育带预测——以徐家围子断陷深层为例[J].沉积学报,2013,3:509-515. Meng Yuanlin,Liang Hongtao,Wei Wei,et al.Thermodynamic calculation of turbidite dissolution process and prediction of secondary pore development zone——A case study of the deep layer of Xujiaweizi fault depression[J].Acta Sedimentologica Sinica,2013,3:509-515.
[31] 程志国,胡婷婷,瞿建华,等.准噶尔盆地玛西地区致密砂砾岩优质薄储层预测[J].物探与化探,2015,5:891-896. Cheng Zhiguo,Hu Tingting,Yan Jianhua,et al.Prediction of high quality thin reservoirs of tight glutenite in Marcy area of Junggar Basin[J].Geophysical and Geochemical Exploration,2015,5:891-896.
[32] 张大智,张晓东,杨步增.徐家围子断陷沙河子组致密气地质甜点综合评价[J].岩性油气藏,2015,27(5):98-103. Zhang Dazhi,Zhang Xiaodong,Yang Buzeng.Comprehensive evaluation of geological sweet point of tight gas of Shahezi Formation in Xujiaweizi fault depression[J].Lithologic Reservoirs,2015,27(5):98-103.
[33] 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. Zhang Xiaodong,Yu Jing,Zhang Dazhi,et al.Tight gas accumulation conditions and exploration prospects of Shahezi Formation in Xujiaweizi fault depression[J].Petroleum Geology & Development in Daqing,2014,33(5):86-91.