马遵青1,2,3,陈国俊1,2 ,杨海长4,李超1,2,赵燚林1,2,3
Ma Zun-qing1,2,3,Chen Guo-jun1,2,Yang Hai-zhang4,Li Chao1,2,Zhao Yi-lin1,2,3
摘要: 通过岩石薄片、扫描电镜和统计方法研究了琼东南盆地松南凹陷三亚组一段2 565.00~2 576.23m细—中砂岩所含的大型有孔虫化石对岩石储集空间和物性的影响。分析表明,该层段细—中砂岩具有中—低孔、低渗—特低渗的物性特征。大型有孔虫壳体对砂岩储集空间及物性有特殊影响,其抗压实性可减少压实作用对体腔孔隙及壳体格架间孔隙的破坏,使砂岩中的生物体腔孔保有1%~4%的面孔率。但由于有孔虫壳体较大、硬度较小,压实作用可使壳体周边多个碎屑颗粒嵌入有孔虫壳壁,壳体可封堵周边的碎屑粒间孔隙并影响其渗透性;碳酸盐胶结物的碳氧同位素测试发现,δ13C值介于-2.050‰~0.243‰之间,δ18O值介于-9.700‰~-7.624‰之间;古盐度Z值介于118.93~123.67之间,平均值为121.42;碳酸盐形成温度在56.5~64.8℃之间,平均值为62.2℃。测试结果表明,该层砂岩中的碳酸盐胶结物具有海相成岩环境、早成岩阶段的特点。结合薄片有孔虫含量与碳酸盐胶结物含量的正相关关系,以及有孔虫壳体附近碳酸盐胶结物分布较多的现象判断,大型有孔虫壳体为碳酸盐胶结物的形成提供了丰富的物质来源,由此导致的强烈胶结作用是砂岩物性变差的重要原因。
中图分类号:
[1]Jones R W.Foraminifera and Their Applications[M].London:Cambridge University Press,2014:1-408. [2]Tian Zepu,Liu Bo,Gao Jixian.Diagenesis of bioclastic carbonates of the Cretaceous Mishrif Formation in the Rumaila Oil Field,Iraq[J].Journal of Stratigraphy,2016,40(1):41-50. 田泽普,刘波,高计县.伊拉克鲁迈拉油田白垩系Mishrif组碳酸盐岩生物碎屑和成岩作用特点[J].地层学杂志,2016,40(1):41-50. [3]Gao Jixian,Tian Changbing,Zhang Weimin,et al.Characteristics and genesis of carbonate reservoir of the Mishrif Formation in the Rumaila Oil Field[J].Acta Petrolei Sinica,2013,34(5):843-852. 高计县,田昌炳,张为民,等.伊拉克鲁迈拉油田Mishrif组碳酸盐岩储层特征及成因[J].石油学报,2013,34(5):843-852. [4]Racey A.A review of Eocene Nummulite accumulations:Structure,formation and reservoir potential[J].Journal of Petroleum Geology,2001,24(1):79-100. [5]Jia Yirong,Wang Tianqi,Dou Yutan,et al.Seismic identification of limestone reservoir in block C of Pelagian Basin[J].Natural Gas Geoscience,2013,24(1):150-155. 贾义蓉,王天奇,窦玉坛,等.Pelagian盆地C区块灰岩储层的地震识别[J].天然气地球科学,2013,24(1):150-155. [6]Li Juan,Wang Tianqi,Sun Songling,et al.Nummulite limestone reservoir sequence and sedimentary feature,Pelagian Basin[J].Geological Science and Technology Information,2015,34(5):21-26. 李娟,王天奇,孙松领,等.北非Sabratah盆地下始新统El Garia组货币虫灰岩层序地层与沉积模式[J].地质科技情报,2015,34(5):21-26. [7]Carozzi A V.Depositional models and reservoir properties of Miocene reefs,Visayan Islands,Philippines[J].Journal of Petroleum Geology,1995,18(1):29-48. [8]Flügel E.Microfacies of Carbonate Rocks:Analysis,Interpretation and Application[M].Second Edition .Translated by Ma Yongsheng,Liu Bo,Guo Rongtao,et al.Beijing:Geological Publishing House,2016:159. (德)Erik Flügel著,碳酸盐岩微相:分析、解释及应用[M].第二版.马永生,刘波,郭荣涛,等译.北京:地质出版社,2016:159. [9]He Yan,Hu Pingzhong.Early Miocene large foraminifera from biogenetic reef complexes of Dongsha massif,South China Sea[J].Acta Palaeontologica Sinica,1995,34(1):18-39. 何炎,胡平忠.南海东沙隆起早中新世生物礁中的大有孔虫[J].古生物学报,1995,34(1):18-39. [10]Tao Weixiang,He Shibin,Zhao Zhigang,et al.Reservoir distribution in deepwater area of the Qiongdongnan Basin[J].Petroleum Geology & Experiment,2006,28(6):554-559. 陶维祥,何仕斌,赵志刚,等.琼东南盆地深水区储层分布规律[J].石油实验地质,2006,28(6):554-559. [11]Lei Chao,Ren Jianye,Pei Jianxiang,et al.Tectonic framework and mutiple episode tectonic evolution in deepwater area of Qiongdongnan Basin,north continental margin of South China Sea[J].Earth Science:Journal of China University of Geosciences,2011,36(1):151-162. 雷超,任建业,裴健翔,等.琼东南盆地深水区构造格局和幕式演化过程[J].地球科学:中国地质大学学报,2011,36(1):151-162. [12]Wang Zhenfeng,Li Xushen,Sun Zhipeng.Hydrocarbon accumulation conditions and exploration potential in the deep -water region Qiongdongnan Basin[J].China Offshore Oil and Gas,2011,23(1):7-13,31. 王振峰,李绪深,孙志鹏,等.琼东南盆地深水区油气成藏条件和勘探潜力[J].中国海上油气,2011,23(1):7-13,31. [13]Zhang Gongcheng,Liu Zhen.Tectonics of Petroliferous Rift Basins in China[M].Beijing:Petroleum Industry Press,2014:417-454. 张功成,刘震.中国含油气裂谷盆地构造[M].北京:石油工业出版社,2014:417-454. [14]Shao Lei,Li Ang,Wu Guoxuan,et al.Evolution of sedimentary environment and provenance in Qiongdongnan Basin in the northern South China Sea[J].Acta Petroleum Sinica,2011,31(4):548-552. 邵磊,李昂,吴国瑄,等.琼东南盆地沉积环境及物源演变特征[J].石油学报,2011,31(4):548-552. [15]He Jiaxiong,Shi Xiaobin,Xia Bin,et al.The status of the petroleum exploration in the northern South China Sea and the resource potential in the deep-water areas[J].Advances of Earth Sciences,2007,22(3):261-270. 何家雄,施小斌,夏斌,等.南海北部边缘盆地油气勘探现状与深水油气资源前景[J].地球科学进展,2007,22(3):261-270. [16]Ji Mo,Zhang Gongcheng,Yang Haizhang,et al.Structural pattern and evolution of eastern sag belt,in deep-water area of Qiongdongnan Basin[J].Marine Geology Frontier,2016,30(9):26-35. 纪沫,张功成,杨海长,等.琼东南盆地深水区东区凹陷带结构构造及其演化特征[J].海洋地质前沿,2016,30(9):26-35. [17]Liao Jihua,Wang Hua,Lv Ming,et al.Evolution of syndepositional faulting and its controlling effect on sedimentary effect on sedimentary filling in Songnan-Baodao Sag of Qiongdongnan Basin,South China Sea[J].Journal of University of Mining & Technology,2016,45(2):336-346. 廖计华,王华,吕明,等.琼东南盆地深水区松南—宝岛凹陷同沉积断裂活动及其对沉积充填的控制[J].中国矿业大学学报,2016,45(2):336-346. [18]Yu Junfeng,Sun Zhipeng,Zhu Jitian.Cenozoic tectonic phases and their representing shapes in Songnan Sag,Qiongdongnan Basin[J].Natural Gas Geoscience,2010,21(2):281-288. 于俊峰,孙志鹏,朱继田.琼东南盆地松南凹陷新生代重要构造幕及表现形式[J].天然气地球科学,2010,21(2):281-288. [19]You Junjun,Sun Zhipeng,Li Junliang,et al.Exploration potential of Songnan low-uplift in the deep water region,Qiongdongnan Basin[J].China Mining Magazine,2012,21(8):856-859. 游君君,孙志鹏,李俊良,等.琼东南盆地深水区松南低凸起勘探潜力评价[J].中国矿业,2012,21(8):856-859. [20]Department of Mineralogy,Petrology and Ore Deposit of East China petroleum Institute.Sedimentary Petrology:Volume 1[M].Beijing:Petroleum Industry Press,1982:112-114. 华东石油学院岩矿教研室主编.沉积岩石学:上册[M].北京:石油工业出版社,1982:112-114. [21]People’s Republic of China Petroleum and Natural Gas Industry Standard.SY/T 6285-2011 Evaluating Methods of Oil and Gas Reservoir[S].Beijing:National Energy Administration,2011:1-15. 中华人民共和国石油天然气行业标准.SY/T 6285-2011油气储层评价方法[S].北京:国家能源局,2011:1-15. [22]People’s Republic of China Petroleum and Natural Gas Industry Standard.SY/T 5477-2003 The Division of Diagenetic Stages in Clastic Rocks[S].Beijing:State Economic and Trade Commission of China,2003:1-11. 中华人民共和国石油天然气行业标准.SY/T 5477-2003碎屑岩成岩阶段划分[S].北京:国家经济贸易委员会,2003:1-11. [23]Keith M L,Weber J N.Carbon and oxygen isotopic composition of selected limestones and fossils[J].Geochimica et Cosmochimica Acta,1964,28(10):1787-1816. [24]Craig H.The measurement of oxygen isotope paleotemperatures[M]//Tongiorgi E.Stable Isotopes in Oceanographic Studies and Paleotemperatures.Consiglio Nazionale delle Richerche,Laboratorio di Geologia Nucleare,1965:161-182. [25]Guo Hongli,Wang Darui.Stable isotopic composition and origin analysis of the carbonate cements within sandstone reservoirs of Tarim oil-gas bearing area[J].Petrolum Exploration and Development,1996,26(3):31-32. 郭宏莉,王大锐.塔里木油气区砂岩储集层碳酸盐胶结物的同位素组成与成因分析[J].石油勘探与开发,1996,26(3):31-32. |
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