Application of quantitative grain fluorescence techniques in analysis of hydrocarbon charge history in Dabei 1 gas reservoir, Kuqa Depression, Tarim Basin
-
摘要: 为研究塔里木盆地库车坳陷大北1致密气藏的充注史与油气分布规律,选取该气藏的DB101、DB103和DB2等3口井的36块砂岩样品,进行颗粒荧光定量分析实验。结果表明:DB101井与DB2井曾经在同一个古圈闭内,DB103井则在另一个独立的古圈闭内,古圈闭内的油藏呈层状分布特征。DB101井现今水层为早期油气的运移路径;DB103井气水界面以下可能存在残留油气层,真正的气水界面比现今气水界面深;DB2井部分古油层晚期被破坏。古油藏的分布及演化对现今油气的分布聚集有重要的影响和控制作用。Abstract: For the study of charge history and distribution law of oil and gas in the Dabei 1 tight gas reservoir in the Kuqa Depression of the Tarim Basin,36 sandstone samples collected from wells DB 101,DB 103 and DB 2 were tested with quantitative grain fluorescence techniques.The results showed that wells DB 101 and DB 2 located in the same palaeo-trap while well DB 103 located in a separate palaeo-trap.Oils distributed in layers in those traps.The present water layers in well DB 101 were palaeo-hydrocarbon migration paths.Under the current gas-water interface in well DB 103,there might be residual oil layers,and the real gas-water interface was deeper.Part of the palaeo-oil reservoir in well DB 2 was destroyed in later stage.The distribution and evolution of palaeo-oil reservoirs played an important role in the present distribution of oil and gas accumulation.
-
[1] 孙冬胜,金之钧,吕修祥,等.库车前陆盆地古隆起及双超压体系对天然气成藏的控制作用[J].石油与天然气地质,2007,28(6):821-827. [2] 卢华复,贾承造.库车再生前陆逆冲带的构造特征与成因[J].石油学报,2000,21 (3):18-24. [3] 漆家福,雷刚林,李明刚,等.库车坳陷克拉苏构造带的结构模型及其形成机制[J].大地构造与成矿学,2009,33(1):49-56. [4] 赵孟军,卢双舫.库车坳陷两期成藏及其对油气分布的影响[J].石油学报,2003,24(5):16-20. [5] 赵孟军,王招明,张水昌,等.库车前陆盆地天然气成藏过程及聚集特征[J].地质学报,2005,79(3):414-422. [6] 卓勤功,赵孟军,谢会文,等.库车前陆盆地大北地区储层沥青与油气运聚关系[J].石油实验地质,2011,33(2):193-196. [7] Liu K,Eadington P.Quantitative fluorescence techniques for detecting residual oils and reconstructing hydrocarbon charge history[J].Organic Geochemistry,2005,36 (7):1023-1036. [8] 李素梅,庞雄奇,刘可禹,等.一种快速检测油包裹体的新方法:颗粒包裹烃定量荧光分析技术及其初步应用[J].石油实验地质,2006,28(4):386-390. [9] 蒋宏,施伟军,秦建中,等.颗粒荧光定量分析技术在塔河油田储层研究中的应用[J].石油实验地质,2010,32(2):201-204. [10] 施和生,秦成岗,高鹏,等.珠江口盆地番禺低隆起—白云凹陷北坡天然气晚期成藏特征[J].中国海上油气,2008,20(2):73-76. [11] 陈冬霞,庞雄奇,张俊,等.应用定量颗粒荧光技术研究岩性油气藏的隐蔽输导通道[J].地质学报,2007,81(2):250-252. [12] 杜治利,王飞宇,张水昌,等.库车坳陷中生界气源灶生气强度演化特征[J].地球化学,2006,35(4):419-431. [13] 赵孟军,张宝民.库车前陆坳陷形成大气区的烃源岩条件[J].地质科学,2002,37(S1):35-44. [14] 赵靖舟,戴金星.库车前陆逆冲带天然气成藏期与成藏史[J].石油学报,2002,23(2):6-10. [15] 王飞宇,张水昌,张宝民,等.塔里木盆地库车坳陷中生界烃源岩有机质成熟度[J].新疆石油地质,1999,20(3):221-224. [16] 漆家福,雷刚林,李明刚,等.库车坳陷克拉苏构造带的结构模型及其形成机制[J].大地构造与成矿学,2009,33(1):49-56. [17] 孙家振,李兰斌,周新源,等.塔里木盆地库车凹陷克拉苏构造带典型构造样式与变形机理分析[J].石油实验地质,2003,25(3):247-251. [18] 张敏,张俊.水洗作用对油藏中烃类组成的影响[J].地球化学,2000,29(3):287-292.
计量
- 文章访问数: 2356
- HTML全文浏览量: 60
- PDF下载量: 848
- 被引次数: 0