搜索结果: 1-13 共查到“石油与天然气工程 NMR”相关记录13条 . 查询时间(0.031 秒)
基于13C NMR谱的煤层气应力成藏作用机理及控气意义
构造应力 控藏意义 核磁共振 煤层气成藏进程
2015/12/21
构造应力是促进煤化作用，从而也是影响煤层气生成的主要因素。为了探索浅层脆性条件下，不同类型构造应力对煤层气形成的影响机理和控藏意义，利用豫西煤田重力滑动构造典型的应力分区特性，在挤压、拉伸和剪切3个构造变形单元内，分别采集主采二1煤样并测定核磁共振吸收强度。测试结果表明，挤压、拉伸和剪切3个构造单元内煤样的芳碳率依次减小，数值分别是0.773、 0.730、0.702,而脂碳率依次增加,数值分...
Characterization of Co-Mo/Al2O3 Hydrodesulfurization Catalyst by 129Xe NMR Spectroscopy
129Xe NMR Cobalt molybdenum catalyst Sulfidation Co-Mo-S phase
2009/8/4
The present study evaluated 129Xe NMR spectroscopy for the analysis of Co-Mo/Al2O3 hydrodesulfurization catalyst. This study also reconsidered the conventional interpretation of 129Xe NMR spectroscop...
Application of 129Xe NMR Spectroscopy to Analysis of Co-Mo/Al2O3 Hydrodesulfurization Catalyst —Effect of Sulfidation on 129Xe NMR Spectra—
129Xe NMR Cobalt molybdenum catalyst Sulfidation Peak broadening
2009/7/28
The effect of sulfidation on 129Xe NMR spectra of Co-Mo/Al2O3 hydrodesulfurization catalysts was investigated. Before sulfidation, catalysts containing cobalt such as Co/Al2O3 and Co-Mo/Al2O3 showed ...
Estimation of Gas Composition and Cage Occupancies in CH4-C2H6 Hydrates by CP-MAS 13C NMR Technique
Gas hydrate Natural gas Gas composition Cage occupancy 13C NMR
2009/7/28
CP-MAS 13C NMR measurements were carried out on mixed gas hydrates containing CH4-C2H6. The changes in NMR chemical shift values for CH4 and C2H6 clearly corresponded to the structural changes in the...
129Xe NMR Analysis of Mo/Al2O3 Hydrodesulfurization Catalyst
129Xe NMR Molybdenum alumina catalyst Molybdenum sulfide crystallite
2009/7/27
129Xe NMR (nuclear magnetic resonance), a useful analytical tool for the investigation of zeolite pores, was evaluated as a novel technique for the analysis of active sites on Mo/Al2O3 hydrodesulfuri...
129Xe NMR Analysis of Mo/Al2O3 Hydrodesulfurization Catalyst (Part 2) Effect of Cobalt Addition
129Xe NMR Molybdenum alumina catalyst Sulfurization Cobalt addition
2009/7/24
The effect of cobalt addition on Mo/Al2O3 hydrodesulfurization catalyst was investigated by 129Xe NMR. Both the amount of adsorbed xenon and the peak width of 129Xe NMR were almost constant at variou...
Effect of Addition Method of Phosphorus on Alumina-supported NiMoP Catalysts —Hydrodesulfurization of 4,6-Dimethyldibenzothiophene and Characterization Using MAS NMR—
Nickel molybdenum catalyst Phosphorus addition Hydrodesulfurization
2009/7/24
A series of Ni-Mo-P/Al2O3 catalysts with phosphorus added by different methods were prepared. The hydrodesulfurization of 4,6-dimethyldibenzothiophene (4,6-DMDBT) was carried out using the catalysts....
Hydrogenation of Dicarboxylic Acid Diesters to Corresponding Dialdehydes over ZrO2 Based Catalysts (Part 2) Analysis of Catalyst Surface Using Diffuse Reflectance FT-IR and CP/MAS 13C-NMR Spectroscopy
Diester hydrogenation Zirconia catalyst FT-IR Reaction mechanism
2009/7/24
The adsorption species on ZrO2 or Cr-ZrO2 catalyst in the hydrogenation of dimethyl benzenedicarboxylates as well as benzoic acid were characterized by diffuse reflectance FT-IR and CP/MAS 13C-NMR spe...
NMR Logging tools providing better answers for hydrocarbon bearing reservoirs, North Western Desert, Egypt
NMR logging FMI logging Reservoir characterization Kharita Formation
2009/4/8
This study aims to evaluate the hydrocarbon potentiality of the Kharita Formation of Lower Cretaceous age which is one of the most promising reservoirs in the Western Desert of Egypt. The convention...
新型纳米乳液润滑剂NMR的研制
润滑剂 纳米乳液 井身质量
2013/6/28
针对常用的油类润滑剂环境污染和水基润滑剂持效性差等问题，研制出一种水包油型纳米乳液润滑剂NMR。评价其各项性能指标结果为：润滑剂密度为0.94 g/cm3，表观黏度为15.5 mPa·s，放置40 d不分层。在膨润土基浆中加量为1％时，润滑系数降低率为85％；在常用的聚合物钻井液和磺化钻井液中加量为1％时，润滑系数降低率为78％以上，且对钻井液流变性无影响，略有降滤失作用；160 ℃下热滚动40 ...
基于核磁共振(NMR)测井驰豫时间分布和毛管压力曲线均反应储层孔隙结构的事实,提出了将NMR测井和毛管压力资料相结合计算储层渗透率的新方法。通过对大量压汞和核磁共振测井实验岩心样品的分析,建立了Swanson参数与岩石渗透率的关系模型。为解决压汞数据受岩心样品数量限制的问题,提出了利用核磁共振横向弛豫时间几何平均值求取Swanson参数,可以连续地计算储层的渗透率。对某油田A井低孔隙度、低渗透率储...
低场NMR岩心分析能够刻度NMR测井响应，对于较为准确地预测储层的渗透率、束缚水体积等与产能密切相关的参数尤其重要.对来自南海东部油田的100%饱和盐水的砂岩岩心进行了变回波间隔的实验室NMR T2测量，随着回波间隔的增大对实验观测到的两种不同的T2 分布的移动进行了理论上的分析和解释.随着回波间隔的增加，T2谱向着长弛豫时间的移动可以用过优化NMR采集参数消除掉，而对另外一种由...