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| 1 | Sample maturation calculated using Raman spectroscopic parameters for solid organics: Methodology and geological applications显示文摘The shape and shift of Raman peak of solid organics prove to be capable of revealing atomic and molecular level vibration information of aromatic ring structure and its relationship with sample maturation. Raman 'D' peaks and 'G' peaks of a series of continuously maturated coal samples were measured, and the inter-peak intervals (G-D) and peak height ratios (Dh/Gh) were derived and correlated with the vitrinite reflectance (vRo%) of standard coal samples. As a result, two formulae were established by using the two Raman indices for calculation of Raman reflectance (RmcRo%), which is equivalent to vitrinite reflectance. The formula for calculating Raman reflectance indicative of organic maturation using Raman shift inter-peak interval (G-D) is RmcRo%=0.0537d(G-D)-11.21, which is mainly applicable to matured to highly matured carbonized samples of solid organics; The formula for calculating Raman reflectance indicative of organic maturation using Raman peak height ratio (Dh/Gh) is RmcRo%=1.1659h (Dh/Gh)+2.7588, which is mainly applicable to carbonized samples of solid organics that are over matured or going to be turned into granulated graphite. Preliminary applications indicate that Raman reflectance 'RmcRo%' calculated based on results of Raman spectral analysis of solid organics can be used to characterize sample maturation at molecular level, so enjoying extensive prospects in geological applications. | LIU DeHan XIAO XianMing TIAN Hui MIN YuShun ZHOU Qin CHENG Peng SHEN JiaGui | 2013 | Chinese Science Bulletin2013，58，11： | 30 |
| 2 | 塔里木盆地顺托果勒地区超深层油藏保存及影响因素:来自流体包裹体的证据显示文摘超深层领域油气相态和成藏模式是勘探研究关注的热点问题。以塔里木盆地顺托果勒地区中—下奥陶统储层包裹体为研究对象,开展了详细的包裹体岩相学、油气充注古温压恢复、流体成分、拉曼光谱等系统分析,结合油气藏地质条件,探讨顺托果勒地区超深层油藏的保存途径和影响因素。奥陶系储层发育含固体沥青烃包裹体、气液烃包裹体和干气包裹体3种类型,其中跃进—顺北地区发育含固体沥青烃包裹体和气液烃包裹体,顺南地区发育含固体沥青烃包裹体和干气包裹体。包裹体古温压恢复研究表明,顺托果勒地区至少经历两期油气充注,早期充注的原油在藏内热演化成轻质油和晚期轻质油的充注这两种途径共同决定了顺北地区超深层油藏的保存,该区经历的最高古地温(大于150℃)持续时间较短是控制油藏保存的主要因素,油藏介质环境对原油的热演化起到了一定的抑制作用,这也利于液态烃保存。 | 陈强路 席斌斌 韩俊 许锦 吴鲜 朱秀香 马中良 | 2020 | 中国石油勘探2020，25，3： | 12 |
| 3 | 运用方解石脉包裹体和碳氧同位素评价页岩气保存条件——以中扬子地区寒武系为例显示文摘裂缝脉体的碳/氧同位素和包裹体对于研究油气保存条件有着重要的指示意义。为了揭示中扬子地区寒武系页岩气保存条件的差异性,选取该区3口代表不同构造条件和含气性的井(YY1井、YD4井、ZD1井)作为主要的研究对象,基于裂缝脉体包裹体和方解石脉碳/氧同位素测试分析资料开展了对比研究。研究结果表明:①该区寒武系裂缝脉体包裹体主要有液烃包裹体、甲烷包裹体、气液两相包裹体、盐水包裹体4种类型,(液烃+甲烷)包裹体/(气液两相+盐水)包裹体比值与油包裹体丰度一样对油气成藏与保存具有重要的指示意义,YY1井以高演化液烃和甲烷包裹体为主,ZD1井以气液两相和盐水包裹体为主,YD4井介于二者之间,构造条件越复杂古流体中烃类的占比越低,水的比例越高;②Δ13C (δ13C围岩-δ13C方解石)值、Δ18O(δ18O围岩-δ18O方解石)值的变化范围与保存条件具有相关性,ZD1井的变化范围明显大于YY1井,高度封闭的页岩段Δ13C值、Δ18O值趋近于0,页岩内部跨层流体、外部流体侵入都会导致Δ13C值、Δ18O值变化;③包裹体及方解石脉碳/氧同位素指示YY1井裂缝导致页岩气向上散失,YD4井、ZD1井裂缝导致页岩气向下散失两种不同逸散类型;④初步建立了中扬子地区基于包裹体和方解石脉碳/氧同位素的寒武系页岩气保存条件评价指标。结论认为,中扬子地区寒武系页岩气保存条件由黄陵隆起向江南-雪峰隆起整体逐渐变差,黄陵隆起周缘的寒武系页岩是下一步页岩气勘探的重点。 | 刘安 周鹏 陈孝红 蔡全升 李海 苗凤彬 彭中勤 黄惠兰 | 2021 | 天然气工业2021，41，2： | 9 |
| 4 | Thermal history of the Sichuan Basin,SW China:Evidence from deep boreholes显示文摘The Sichuan Basin is a superimposition basin composed of terrestrial and marine sediments that is well known for its abundant petroleum resources. Thermal history reconstruction using paleogeothermal indicators, including vitrinite reflectance and thermochronological data, shows that different structural subsections of the Sichuan Basin have experienced various paleogeothermal episodes since the Paleozoic. The lower structural subsection comprising the Lower Paleozoic to Middle Permian(Pz–P_2) successions experienced a high paleogeothermal gradient(23.0–42.6°C/km) at the end of the Middle Permian(P_2), whereas the upper structural subsection comprising Late Permian to Mesozoic strata underwent a relatively lower paleogeothermal gradient(13.2–26.9°C/km) at the beginning of the denudation(Late Cretaceous or Paleocene in the different regions). During the denudation period, the Sichuan Basin experienced a successive cooling episode. The high paleogeothermal gradient resulted from an intensive thermal event correlated to the Emeishan mantle plume. The heat flow value reached 124.0 m W/m^2 in the southwestern basin near the center of the Emeishan large igneous province. The low geothermal gradient episode with heat flow ranging from 31.2 to 70.0 m W/m^2 may be related to the foreland basin evolution. The cooling event is a result of the continuous uplift and denudation of the basin. | ZHU Chuan Qing HU ShengBiao QIU NanSheng RAO Song YUAN YuSong | 2016 | Science China Earth Sciences2016，59，1： | 9 |
| 5 | 潘汉得--胡果顿与普光气田形成条件对比及启示显示文摘分析了北美潘汉得—胡果顿气田和我国普光气田的地质背景、成藏条件与成藏过程指出,二者均发育多套烃源岩,储集层物性均较好,盖层岩类均为膏盐岩,经后期多期变动与调整而定型于晚期。但二者间最显著的差异在于盖层的发育程度:前者的膏盐岩直接盖层分布范围广、厚度巨大、断层不发育,明显优于普光气田。说明在气源充足、储集层发育良好的地质条件下,盖层及保存条件是形成大气田的最关键因素。据此预测,在中国南方飞仙关组礁滩优质储集层和嘉陵江组膏盐岩盖层发育重叠区,如万州和大竹地区,有望发现更大规模的天然气田。 | 徐思煌 曹婷婷 W.L.Watney | 2012 | 新疆石油地质2012，33，4： | 2 |
| 6 | 天然气藏中CH4—H2O—NaCl体系不混溶包裹体群捕获温压恢复及应用显示文摘CH4-H2O-NaCl体系不混溶包裹体群被广泛应用于恢复天然气成藏期的捕获温度及压力。前人提出了针对富气端元包裹体和富水溶液端元包裹体的不同的捕获温压恢复方法。为对比2类包裹体捕获温压恢复的效果,在对前人方法进行梳理的基础上,以四川盆地南部YA井志留系龙马溪组黑色页岩中的石英—方解石为例,通过详细的岩相学分析,选择同一FIA(流体包裹体组合)的富气端元包裹体和富水溶液端元包裹体进行了捕获温度、压力恢复。结果表明:同一FIA的2类包裹体恢复的捕获温度、压力结果分布范围基本一致,呈现出捕获温度变化范围较窄(212.0~220.7℃)但捕获压力变化范围较大(90~152 MPa)的特点,表明流体压力在石英—方解石形成时可能存在较大的波动。上述流体压力的波动可能受脉体形成时有机质裂解增压以及裂隙多次张开—愈合的综合影响。 | 席斌斌 申宝剑 蒋宏 杨振恒 王小林 | 2020 | 天然气地球科学2020，31，7： | 1 |
| 7 | 皖南地区二叠系孤峰组页岩中高密度含甲烷包裹体特征及其地质意义显示文摘对皖南地区泾县昌桥剖面的二叠系孤峰组硅质页岩裂缝石英脉中流体包裹体进行了显微激光拉曼光谱测试、热力学温度测定及拉曼光谱图谱解析,观测到了高密度甲烷包裹体。利用甲烷包裹体的拉曼散射峰v1位移2910.6~2911.2 cm-1,计算得到甲烷包裹体密度为0.2295~0.2618 g/cm3,具有高密度甲烷包裹体特征。含甲烷组分的气液两相盐水包裹体均一温度分布在216.8~242.3℃。由于气液两相盐水包裹体与甲烷包裹体是共生的,通过状态方程热力学计算高密度甲烷包裹体在共生气液两相盐水包裹体最小温度216.8℃的捕获压力为76~95 MPa。对甲烷流体包裹体密度和捕获压力的计算,揭示了区域内二叠系孤峰组高演化程度的硅质页岩在地史演化过程中存在高压甲烷流体产出的证据,为开展皖南地区二叠系页岩气勘探评价提供了科学依据。 | 董敏 王宗秀 董会 张林炎 宋微 郭迎春 李小诗 冯兴强 马立成 季长军 | 2020 | 地质力学学报2020，26，6： | 1 |
| 8 | Study of genetic evolution of oil inclusion and density of surface oil by measurement of fluorescence lifetime of crude oil and oil inclusion显示文摘By using fluorescence lifetime image microscope(FLIM)and time-correlated single photon counting(TCSPC)technique,we measured fluorescence lifetime of crude oils with density of 0.9521-0.7606 g/cm^3 and multiple petroleum inclusions from Tazhong uplift of Tarim Basin.As indicated by the test results,crude oil density is closely correlated with average fluorescence lifetime following the regression equation Y=-0.0319X+0.9411,which can thus be used to calculate density of oil inclusions in relation to fluorescence lifetime and density of corresponding surface crude.For type A oil inclusions showing brown-yellow fluorescence from Tazhong 1 well in Tarim Basin,their average fluorescence lifetime was found to be 2.144-2.765ns,so the density of surface crude corresponding to crude trapping these oil inclusions is 0.852-0.873 g/cm^3,indicating that they are matured oil inclusions trapped at earlier stage of oil formation.For type B oil inclusions with light yellow-white fluorescence,their average fluorescence lifetime was found to be 4.029-4.919 ns,so the density of surface crude corresponding to crude trapping these oil inclusions is 0.784-0.812 g/cm^3,indicating that they are higher matured oil inclusions trapped at the second stage of oil formation.For type C oil inclusions showing light blue-green fluorescence,their average fluorescence lifetime was found to be 5.063-6.168 ns,so the density of surface crude corresponding to crude trapping these oil inclusions is 0.743-0.779g/cm^3,indicating that they are highly-matured light oil inclusions trapped at the third stage of oil formation. | LIU DeHan XIAO XianMing CHENG Peng SUN YongGe TIAN Hui PENG PingAn | 2017 | Science China Earth Sciences2017，60，1： | 1 |
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