华蓥天池涧水沟剖面长兴组台内礁滩剖面精细地质研究
Fine Geological Study about Inner Platform Reef and Shoal Profile of Changxing Formation in Jianshuigou, Tianchi of Huaying

作者: 李 赞 , 胡忠贵 , 王齐禄 , 张恩达 , 唐 刚 :长江大学地球科学学院,湖北 武汉; 施 琰 :江苏油田分公司地质科学研究院,江苏 扬州;

关键词: 川东地区涧水沟剖面长兴组台内礁滩East Sichuan Basin Section of Jianshuigou Changxing Formation Inner Platform Reef and Shoal

摘要:
礁滩相带是碳酸盐岩油气勘探的有利沉积相带,弄清台内礁滩相带的分布和演化规律,对川东地区台地内部油气勘探具有重要的意义。通过对广安华蓥天池涧水沟长兴生物礁进行剖面精细写实和详细研究,对其生物礁内部构成特征进行深入研究,精细刻画出礁滩内部构成和形成模式,指出礁体内部有利储层的分布规律。剖面上识别出三期生物礁生长旋回,均由粒屑滩沉积的礁基和障积礁或骨架礁组成的礁核构成,分别对应于三个向上变浅的准层序组,总体构成加积–进积型生物礁;其中第二期生物礁最为发育。各期生物礁生长旋回顶部的礁滩复合体白云石化强烈,有利于储层形成。

Abstract: Reefs and shoals are favorable sedimentary facies about carbonate rock oil and gas exploration. Cla-rifying the distribution and evolution of inner platform reef and shoal facies is important to oil and gas exploration in inner platform of eastern Sichuan. Through fine realistic and detailed study of Jianshuigou reef profile of Changxing Formation in Tianchi of Huaying, Guangan, this paper in depth researches the internal composition of reef, depicts the internal structure and the formation patterns of the reef, and points out the distribution of favorable reservoir inside the reef. Three growth cycles of reef have been identified, which is made up of reef base and reef core. The growth cycle of reef was consisted by reef base and reef core, among them grain shoal constitutes the reef base and skeleton reef or barrier reef constitutes the reef core. Three reef cycles were identified in the profile, which correspond to the three upward shallowing parasequence sets, and overall constitute accretion - into product type reef. The second reef cycle is the most developed. Complexes dolomitization is strong in the growth cycle phases of the top reef, and is good for the formation of reservoir.

文章引用: 李 赞 , 胡忠贵 , 王齐禄 , 施 琰 , 张恩达 , 唐 刚 (2015) 华蓥天池涧水沟剖面长兴组台内礁滩剖面精细地质研究。 地球科学前沿, 5, 76-83. doi: 10.12677/AG.2015.52011

参考文献

[1] 邹才能, 徐春春, 汪泽成, 胡素云, 杨光, 李军, 杨雨, 杨威 (2011) 四川盆地台缘带礁滩大气区地质特征与形成条件. 石油勘探与开发, 6, 641-651.

[2] 邓剑, 王伟克, 唐德海, 汪建辉, 陈亚光 (2013) 四川盆地东部涪陵地区台缘礁滩复合体储量计算. 石油天然气学报, 2, 50-55.

[3] 刘殊, 范菊芬, 曲国胜, 郭旭升 (2006) 气烟囱效应——礁滩相岩性气藏的典型地震响应特征. 天然气工业, 11, 52-55.

[4] 胡昊, 王振宇, 屈海洲, 孙崇浩, 张云峰, 于红枫 (2013) 塔中地区中古51井区良里塔格组台内礁滩演化模式. 石油天然气学报, 2, 1-6.

[5] 张建勇, 周进高, 郝毅, 王小芳, 吕玉珍, 张大智, 徐美茹, 张润合, 谷明峰, 张敬艺 (2011) 四川盆地环开江–梁平海槽长兴组–飞仙关组沉积模式. 海相油气地质, 3, 45-54.

[6] 赵文智, 沈安江, 胡素云, 张宝民, 潘文庆, 周进高, 汪泽成 (2012) 中国碳酸盐岩储集层大型化发育的地质条件与分布特征. 石油勘探与开发, 1, 1-12.

[7] 张奇, 屠志慧, 饶雷, 徐亮, 邓思思 (2010) 四川川中地区晚二叠世蓬溪–武胜台凹对台内生物礁滩分布的控制作用. 天然气勘探与开发, 4, 1-7.

[8] 马永生, 牟传龙, 谭钦银, 余谦 (2006) 关于开江–梁平海槽的认识. 石油与天然气地质, 3, 326-331.

[9] 胡忠贵, 胡明毅, 廖军, 刘冬玺, 蔡全升, 王丹 (2014) 鄂西建南地区长兴组沉积相及生物礁沉积演化模式. 天然气地球科学, 7, 980-990.

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