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Quantitative characterization of pore structure of the CarboniferousePermian tight sandstone gas reservoirs in eastern Linqing depression by using NMR technique

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Petroleum Research 2018年第2期3卷 110-123页

作者： Tao Fang Likuan Zhang Naigui Liu Liqiang Zhang Weimin Wang Lan Yu Chao Li yuhong lei School of Geosciences China University of PetroleumShandong266580China Institute of Geology and Geophysics Chinese Academy of SciencesBeijing100029China Key Laboratory of Petroleum Resources Research Chinese Academy of SciencesBeijing100029China Institute of Quantum Electronics School of Electronics Engineering and Computer SciencePeking UniversityBeijing100871China Research Institute of Exploration and Development Sinopec Shengli Oilfield CompanyShandong257000China

Micro-nano scale pores can accurately and fastly be measured by the nuclear magnetic resonance(NMR)technique,which provides a new method to quantitatively characterize pore structures in tight *** on the method of calibration of mercury pressure data for NMR T_(2) spectrum,for the measurement inaccuracy due to the mercury saturation less than 100%in tight sandstone,the mercury pressure curve and T_(2) spectrum is used to cumulate from the maximum pore on the right boundary to the small pores in the left,the range of pore-throat radius measured by the mercury injection in the leftward cumulative curve is selected as a comparable interval of NMR pore-throat radius,and the longitudinal interpolation method and the least square method are utilized to construct the distribution curve of pore-throat radius transformed by T_(2) *** modified method is used to obtain NMR T_(2) spectrum,conversion coefficient of pore-throat radius and pore-throat radius distribution of the Carboniferous-Permian tight sandstone gas reservoirs in the eastern Linqing depression,and characteristics of reservoir pore structures are quantitatively investigated;in addition,in combination with analysis of thin section and scanning electron microscopy,the reservoir effectiveness and cause of the pore structure variability in the tight sandstone are also well *** results show that the NMR pore-throat radius curve obtained by the modified method has a high consistency with the mercury injection curve,and the NMR test accuracy of tight sandstone is significantly *** the study area,the pore-throat radius of the Carboniferous-Permian tight sandstone mainly ranges from 0.002 to 2 mm,the pore is generally submicro-nano scale,but the pore-throat radius distribution of different types of sandstone varies *** lithic quartz sandstone is rich in siliceous matter and poor in plastic detritus and matrix,generally dominated by submicro-scale pore-throats including m

关键词： NMR T_(2)spectrum Mercury injection Conversion coefficient Pore-throat Rock fabric Microfacies Tight sandstone Linqing depression

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Lea Gentile: Pianist Educator

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China Today 2015年第11期64卷 74-75页

作者： WU XINGDUO lei yuhong International Talent magazine

AT a charity concert in Tianjin,*** Lea Gentile performed Moonlight by Claude Debussy,evoking for the audience a shimmering lake on a moonlit *** we met her,she had just returned to China from the *** long journey had not affected her;she looked refreshed and ready to *** the interview,she shared her musical journey since childhood and her unique relationship with China,a love affair that started 17 years ago.

关键词： In Pianist Educator Lea Gentile

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A trial of using the cluster analysis to classify the ship noises and EEG (electroencephalogram)

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Chinese Journal of Acoustics 1991年第1期10卷 37-46页

作者： CHEN Geng and WEI Xuehuan(Institute of Acoustics Academia Sinica) WANG yuhong and JIN Zhang lei(Institute of Aeroforce Medicine)

Cluster analysis is a method often used in pattern recognition. With the aid of the signal processing and the learning of the computer, disfferent samples can be classifeid and recognized in a dimension reduction space of the characteristics because of the differences of their character -istics. To realize dimension reduction transformation, a nonlinear mapping method was discussed in this paper. To prove that the cluster analysis is suitable for quite different fields of samples, in this paper some ship noises and some EEG as the samples belong to two different fields are classified and shown. And it is worthy to point out that an adaptive step size expression of adaptive iteration deduced here will also be effective if it is applied to speed adaptive algorithm convergence of general signal processing.

关键词： A trial of using the cluster analysis to classify the ship noises and EEG electroencephalogram

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TOC Determination Using Support Vector Regression and Well Logs

TOC Determination Using Support Vector Regression and Well L...

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2022年中国地球科学联合学术年会

作者： Xin Liu yuhong lei Xiaorong Luo Xiangzeng Wang Kaiyuan Chen Ming Cheng Jintao Yin

Total organic carbon(TOC) is an important parameter for shale gas resource evaluation. For the previous TOC prediction methods, ΔlogR method is the most widely used. There are two main problems in this method: 1) assuming a linear relationship between ΔlogR and TOC;2) manually determining the baseline and introducing human error.

关键词： TOC Determination Using Support Vector Regression and Well Logs Vector

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油气成藏动力学研究方法与应用

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地质科学 2012年第4期47卷 1188-1210页

作者：罗晓容张立宽雷裕红中国科学院油气资源研究重点实验室中国科学院地质与地球物理研究所北京100029

油气成藏过程的动力学研究是以一期油气成藏过程中从油气源到油气藏的统一动力环境系统为单元,定量研究油气供源、运移、聚集的机理、控制因素和动力学过程。以此为基础有望解决油气成藏定量的动力学研究中的几个关键问题。输导层概念... 详细信息

油气成藏过程的动力学研究是以一期油气成藏过程中从油气源到油气藏的统一动力环境系统为单元,定量研究油气供源、运移、聚集的机理、控制因素和动力学过程。以此为基础有望解决油气成藏定量的动力学研究中的几个关键问题。输导层概念的提出及砂岩输导层模型基本工作程序的建立,形成了可以利用通常的物性参数进行输导层量化表征的方法,实现了对油气运移通道的量化表征;采用断层连通概率的概念对各种参数表征断层开启性的能力进行比较和评价,探讨了各种地质参数的有效性和代表性,建立起了断层启闭性表征参数的评价方法;采用数值模拟方法,耦合运聚动力与输导体系,实现成藏系统内油气运移过程的模拟分析;以运移途中烃损失量估算为基础,建立新的物质平衡方法,以模拟获得的运移路径为线索,评估油气在研究不同方向上的运移聚集量,展现油气运移的路径特征、运移方向及运移量,初步形成了以油气成藏动力学成因为基础的油气资源预测方法。

关键词：油气成藏动力学定量研究输导层断层封闭性油气运移

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手术室整体护理配合在股骨粗隆骨折闭合复位PFNA内固定手术中的应用

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西藏医药 2022年第6期43卷 87-89页

作者：杨锦秀 Liu Zhen lei yuhong 南平市政和县医院手术室福建南平353600 不详

目的探究手术室整体护理配合在股骨粗隆骨折闭合复位PFNA内固定手术中的应用。方法选取本院就诊的70例行股骨粗隆骨折闭合复位PFNA内固定手术患者作为研究对象。根据随机数字表法分组,分为观察组(n=35)和对照组(n=35)。比较两组临床... 详细信息

目的探究手术室整体护理配合在股骨粗隆骨折闭合复位PFNA内固定手术中的应用。方法选取本院就诊的70例行股骨粗隆骨折闭合复位PFNA内固定手术患者作为研究对象。根据随机数字表法分组,分为观察组(n=35)和对照组(n=35)。比较两组临床指标、髋关节功能评分及并发症情况。结果观察组患者的手术时间、术中出血量、术后引流量明显少于对照组(P<0.05)。观察组患者Harris评分明显优于对照组(P <0.05)。观察组不良反应2例,不良反应总发生率为5.71%,而对照组总不良反应8例,总不良反应发生率为22.86%。与对照组相比,观察组术后并发症发生率显着降低(P<0.05)。结论股骨粗隆骨折闭合复位PFNA内固定手术应用手术室整体护理配合可缩短手术时间,减少术中失血量,有效改善髋关节功能以及降低术后并发症,值得临床推广应用。

关键词：手术室整体护理股骨粗隆骨折闭合复位PFNA内固定手术应用

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海南岛中北部三叠纪花岗岩源区的锶、钕同位素制约及其意义

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大地构造与成矿学 2005年第2期29卷 234-241页

作者：云平雷裕红吕嫦艳海南省地质调查院海南海口570206 中国地质大学湖北武汉430074

海南岛中北部三叠纪花岗岩的锶、钕同位素初始比值分别为I(Sr)0. 7080 ~0. 71505、εNd(t) -10 ^-5,表明这些花岗岩属壳源型,其源岩主要为海南岛结晶基底中元古界抱板群,但受到了幔源岩浆的混染。这些花岗岩所表现出来的基本一致的锶、... 详细信息

海南岛中北部三叠纪花岗岩的锶、钕同位素初始比值分别为I(Sr)0. 7080 ~0. 71505、εNd(t) -10 ^-5,表明这些花岗岩属壳源型,其源岩主要为海南岛结晶基底中元古界抱板群,但受到了幔源岩浆的混染。这些花岗岩所表现出来的基本一致的锶、钕同位素特征,表明测区具有统一的前寒武纪基底。

关键词：锶、钕同位素花岗岩海南岛

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海洋天然气水合物成藏系统研究进展及发展方向

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石油学报 2021年第6期42卷 801-820页

作者：雷裕红宋颖睿张立宽苗来成程明刘乃贵中国科学院地质与地球物理研究所中国科学院油气资源研究重点实验室北京100029 中国科学院地球科学研究院北京100029 中国科学院大学北京100049

天然气水合物成藏系统的研究对于认识具有强非均质性的天然气水合物的资源分布、预测其甜点、提高其勘探成效具有重要的意义。通过综合分析天然气水合物在成藏条件、成藏要素和成藏模式等方面的研究认识和勘探成果,综述了天然气水合物... 详细信息

天然气水合物成藏系统的研究对于认识具有强非均质性的天然气水合物的资源分布、预测其甜点、提高其勘探成效具有重要的意义。通过综合分析天然气水合物在成藏条件、成藏要素和成藏模式等方面的研究认识和勘探成果,综述了天然气水合物成藏系统在气源、稳定带特征及影响因素、储层类型与特征、运移通道类型和成藏模式等方面的研究新进展。天然气水合物的气源可分为生物气、深部热解气和混合气3种类型;水合物的储层类型包括软泥、粉砂质泥和粉砂等多种类型;在粒度较粗的储层中,水合物的含气饱和度往往相对较高;断层、裂隙、底辟构造、气烟囱和高渗透性地层等是天然气水合物的有效运移通道。前人依据气源及其与水合物稳定带的配置关系、水合物的生成速度与分解速度的消长关系、水合物形成的主控因素、运移通道的类型等建立了多种水合物成藏模式,但对于成藏过程中各成藏要素的时空演化及耦合关系、成藏效率的定量评价等研究仍不足,有必要将天然气从气源灶运移至稳定带的动力学过程与稳定带内天然气的运移、聚集、分解和散失的动力学过程有机结合起来开展研究。采用成藏动力学定量研究的思路和方法,应用大数据和人工智能等新技术来定量表征天然气水合物的成藏要素及其时空演化过程,利用数值模拟方法定量研究在气源灶、运移通道、稳定带和储层耦合条件下的天然气水合物的运移、聚集、分解、散失过程是未来天然气水合物成藏系统研究的发展方向。

关键词：天然气水合物气源运移通道形成机理成藏模式

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Characteristics of silty laminae in Zhangjiatan Shale of southeastern Ordos Basin,China:Implications for shale gas formation

Characteristics of silty laminae in Zhangjiatan Shale of sou...

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中国科学院地质与地球物理研究所2015年度（第15届）学术年会

作者： yuhong lei Xiaorong Luo Xiangzeng Wang Lixia Zhang Chengfu Jiang Wan Yang Yuxi Yu Ming Cheng Likuan Zhang Key Laboratory of Petroleum Resources Research Institute of Geology and GeophysicsChinese Academy of Sciences Shaanxi Yanchang Petroleum(Group) Co. Ltd. State Department of Geological Science and Engineering Geology and Geophysics ProgramMissouri University of Science and Technology University of Chinese Academy of Sciences

Shale oil and gas have been discovered in the lacustrine organicrich Zhangjiatan Shale of the Upper Triassic Yanchang Formation,Ordos Basin,*** observations indicate abundant silty laminae in the producing *** study documents the stratigraphic distribution of silty laminae and their relationship with interlaminated clay *** type,structure,and characteristics of pores and mineral composition of silty laminae were observed and analyzed through thin section and scanning electron microscopy,X-ray diffraction,low-pressure CO and N adsorption,mercury porosimetry,and helium *** from silty laminae are compared with those of clayey *** frequency and thickness of silty laminae vary over a wide *** thickness ranges from 0.2 to 4 mm and is 1.5 mm on average;the frequency ranges from 4 to 32 laminae/m and is 23 laminae/m on *** thickness percentage of silty laminae in the measured segments ranges from 6%to 17%.Silty laminae consist of quartz,feldspar,mixed-layer montmorillonite,and *** comparison to clayey laminae,non-clay detrital grains are larger,quartz and feldspar are more common,and clay minerals are less *** in silty laminae are primary interparticle,dissolutional,intercrystalline,and microfracture ***(2-50 nm in diameter) and macropores(50 nm-1 μm) are common,whereas,micropores(<2 nm) are rare;the distribution of pore diameters is ***,microscopic pores with a diameter commonly smaller than 100 nm are common in clayey ***,pore volume and surface area of micropores in silty laminae are less than those in the adjacent clayey laminae,and vice versa for meso- and *** porosity of shales increases with the proportion of silty laminae in the *** silty laminae provide the storage space and flow conduit for oil and gas,and they play a significant role in the migration,accumulation,occurrence,and amount of gas in the shales.

关键词：

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Carbon isotopic fractionation by desorption of shale gases

Carbon isotopic fractionation by desorption of shale gases

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中国科学院地质与地球物理研究所2015年度（第15届）学术年会

作者： Xiaofeng Wang Xiaofu Li Xiangzeng Wang Baoguang Shi Xiaorong Luo Lixia Zhang yuhong lei Chengfu Jiang Qiang Meng Key Laboratory of Petroleum Resources Gansu Province/Key Laboratory of Petroleum Resources ResearchInstitute of Geology and GeophysicsChinese Academy of Sciences University of Chinese Academy of Sciences Shaanxi Yanchang Petroleum (Group) CO. LTD.

Geochemical studies of shale gas and conventional reservoirs within the Triassic Yanchang Formation of Xiasiwan and Yongning Field,Ordos Basin show that methane is isotopically depleted in13C as compared to dCcalculated by the Ro based on the relationship between dCand *** fractionation during the adsorption/desorption process of shale system may play a significant part in influencing dCvalues of shale *** shale core samples from confined coring of the Yanchang Formation were adopted segmented desorption experiments to examine this *** results show that the dCof desorbed gas changes little in the first few phases of the experiments at low desorption levels,but become less negative rapidly when the fraction of desorbed methane exceeds 85%.The desorption process for the last 15%fraction of the methane from the shale samples shows a wide variation in dCfrom 49‰to 33.9‰.Moreover,dCof all desorbed methane from the shale samples is substantially depleted in13C than that calculated by Ro,according to Stahl and Carey’s dCe Ro equation for natural gas generated from sapropelic organic *** shows some gases with isotopically enriched in13C cannot be desorbed under the temperature and pressure conditions of the desorption *** observation may be the real reason for the dCof shale gases and conventional reservoirs becomes more negative in Xiasiwan and Yongning Fields,Ordos *** magnitude of the deviation between the dCof shale gas and that calculated by Ro may be related to the adsorption capacity of shale or the proportion of absorbed *** this way,we may be able to evaluate the relative adsorption capacity of shale in geological conditions by dCof the shale gas,or by dCof conventional gas which generated by the shale with *** dCof conventional gas in Dingbian and Yingwang Fields have no deviation because the TOC value of the hydrocarbon source rock is relatively low.

关键词： Shale gas Carbon isotopic composition Adsorption/desorption Adsorption capacity

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