APPROACHING TO CHEMICAL COMPOSITION AND APPLICATION OF RAMAN SPECTRUM OF FLUID INCLUSION——TAKING THE LOWER ORDOVICIAN RESERVOIRS IN TAHE AS AN EXAMPLE
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摘要: 通过对塔河油区下奥陶统储层的流体包裹体特征以及拉曼位移和成分特征、主要成分含量(CO2,CH4,H2O等)与埋藏深度关系等研究发现:①下奥陶统储层中存在2大类8个种类及4种组合的流体包裹体;②下奥陶统储层流体包裹体以富含CO2与CH4烃类包裹体和H2O—CO2盐水包裹体为主;③在单个包裹体中,甲烷拉曼特征峰随埋藏深度总体是升高趋势,而其相对含量则为先升后降;④二氧化碳拉曼特征峰、相对含量随埋藏深度同时呈下降趋势;⑤水的拉曼特征峰随埋藏深度呈一定的非线性变化趋势;⑥气相中甲烷与二氧化碳的摩尔百分含量呈消长关系;它们均可用于推测油气捕获时的成熟度指标,而水的拉曼位移随埋深变化则可间接判断其溶液介质性质。Abstract: Based on the studies of chemical composition and features of Raman spectrum(LRM),together with the relationship between the displacement values(ν) of the major chemical composition CO2,CH4,H2O and the buried depth of fluid inclusion.the author has shown that: 1)It can be proposed that there are at least eight types and four assemblages inclusions occurred in the Lower Ordovician reservoirs;2) The richness of CO2-,CH4-hydrocarbon and H2O-CO2 brine inclusion are dominant in those assemblages;3) In a single inclusion,the content of methane in gas phase increase initially but decreases at later with increasing that of depth;4) The displacement value(ν) and content of methane simultaneously decrease with the buried depth of samples;5) The displacement value(ν) of water presents a non-line covariance with the depth of samples;6) The contents of methane in gas phase demonstrated a negative linear covariance of its contents carbon dioxide;and the author believed that those parameters can be used as the indicator of maturity of hydrocarbon emplacement.
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Key words:
- fluid inclusion /
- Raman spectrum /
- chemical composition analysis /
- displacement value /
- the Lower Ordovician /
- Taihe Oilfield /
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[1] 顾忆.塔里木盆地北部塔河油田油气藏成藏机制[J].石油实验地质,2000,22(4):307~312 [2] 秦建中,饶丹,蒋宏等.高演化海相碳酸盐岩层系古温标的直接指标--包裹体均一温度[J].石油实验地质,2008,30(5):494~498 [3] 杨惠民.包裹体类型和成分特征在油气运移研究和油气储层评价中的应用[J].海相油气地质,1997,2(3):16~21 [4] 谢奕汉,范宏瑞,王英兰.石油包裹体与石油成熟度及油气演化[J].海相油气地质,1999,4(3):32~35 [5] 肖晖,任战利,崔军平.塔里木盆地孔雀1井志留系含气储层成藏期次研究[J].石油实验地质,2008,30(4):357~361 [6] 赵力彬,黄志龙,高岗等.关于用包裹体研究油气成藏期次问题的探讨[J].油气地质与采收率,2005,12(6):6~9 [7] 李荣西,席胜利,邸领军.用储层油气包裹体岩相学确定油气成藏期次--以鄂尔多斯盆地陇东油田为例[J].石油与天然气地质,2006,27(2):194~199 [8] 宫色,彭平安,刘东鹰.江苏地区句容凹陷油气充注史研究[J].石油实验地质,2007,29(5):500~505 [9] 张莉,柳广弟,谢增业等.川西前陆盆地南部储层流体包裹体特征及其在天然气成藏研究中的应用[J].石油与天然气地质,2005,26(6):800~807 [10] 李传华.东营凹陷王庄-宁海地区流体包裹体分析与流体充注研究[J].油气地质与采收率,2006,13(1):34~36 [11] 冯乔,马硕鹏,樊爱萍.鄂尔多斯盆地上古生界储层流体包裹体特征及其地质意义[J].石油与天然气地质,2006,27(1):27~32 [12] 欧光习,李林强,孙玉梅.沉积盆地流体包裹体研究的理论与实践[J].矿物岩石地球化学通报,2006,25(1):1~11 [13] 张金亮,杨子成.流体包裹体分析方法在惠民凹陷油气成藏研究中的应用[J].中国石油大学学报(自然科学版),2008,32(6):33~38 [14] 袁玉玲,皇甫红英.塔里木盆地塔河南地区良里塔格组成岩环境及油气成藏期次[J].石油实验地质,2008,30(6):580~584 [15] 宗国洪,卓勤功,郝雪峰等.利用有机包裹体恢复油藏油气充注史及应用实例[J].油气地质与采收率,2002,9(3):49~51 [16] 徐培苍,李如璧,王永强.地学中的拉曼光谱[M].西安:陕西科学技术出版社,1996.78~114 -
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