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Prediction of petroleum exploration risk and subterranean spatial distribution of hydrocarbon accumulations

Petroleum Science 2011年第1期8卷 17-23页

作者： Xie Hongbing Guo Qiulin li Feng li jianzhong Wu Na Hu Suyun liang Kun School of Energy Resources China University of GeosciencesBeijing 100083China Research Institute of Petroleum Exploration ＆ Development PetroChinaBeijing 100083China Science ＆ Technology Management Department China National Petroleum CorporationBeijing 100007China

Investigation of spatial distribution of oil and gas resource and accurate prediction of the geographic location of its undiscovered resource is significant for reducing exploration risk and improving exploration benefit.A new method for predicting spatial distribution of oil resource is discussed in this *** consists of prediction of risk probability in petroleum exploration and simulation of hydrocarbon abundance. Exploration risk probability is predicted by multivariate statistics,fuzzy mathematics and information processing techniques.A spatial attribute database for sample wells was set up and the Mahalanobis distance and Fuzzy value of given samples were ***,the Bayesian formula was used to calculate the hydrocarbon-bearing probability at the area of exploration ***,a hydrocarbon probability template is formed and used to forecast the probability of the unknown area. The hydrocarbon abundance is simulated based on Fourier integrals,frequency spectrum synthesis and fractal ***,the fast Fourier transformation（FFT） is used to transform the known hydrocarbon abundance from the spatial domain to the frequency domain,then,frequency spectrum synthesis is used to produce the fractal frequency spectrum,and FFT is applied to get the phase information of hydrocarbon-bearing ***,the frequency spectrum simulation is used to calculate the renewed hydrocarbon abundance in the play. This method is used to predict the abundance and possible locations of the undiscovered petroleum accumulations in the Nanpu Sag of the Bohai Bay Basin,*** prediction results for the well-explored onshore area of the northern Nanpu Sag agree well with the actual *** the less-explored offshore areas in the southern Nanpu Sag,the prediction results suggest high hydrocarbon abundance in Nanpu-1 and Nanpu-2,providing a useful guiding for future exploration.

关键词： Hydrocarbon resources abundance risk forecast Nanpu sag frequency spectrum simulation fractal theory

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Effect of aluminum on microstructure and magnetic properties of sintered Nd-Fe-B magnets processed by grain boundary diffusion of Tb-Al

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Journal of Rare Earths 2023年第5期41卷 705-712,I0003页

作者： Tinghui Wang Zhaokun Ma Qihang Zhu lijing Yang Baosheng liu Yu Zhao Cheng Xu Bizhang Zheng Fangqin Hu jianzhong li Qingfang Huang Zhenlun Song CAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application TechnologyNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Baotou Hidyree Technology Co. Ltd.Baotou 014030China Hangzhou Permanent Magnet Group Co. Ltd.Hangzhou 311231China Ningbo Permanent Magnetics Co. Ltd.Ningbo 315201China Fujian Key Laboratory for Rare Earth Functional Materials Longyan 366300China

The grain boundary diffusion process(GBDP)of Tb can improve the coercivity of sintered Nd-Fe-B *** this study,the effect of AI on the diffusion of Tb in the GBDP was *** content of diffused Tb-Al was precisely controlled by adjusting the magnetron sputtering *** Tb equivalent of Al was also *** show that AI promotes the diffusion of Tb deeper into the magnet,reducing the thickness of the shell in the core-shell *** study is helpful for further developing the process,reducing the consumption of heavy rare earth elements(Tb),and improving the coercivity of sintered Nd-Fe-B magnets.

关键词： Sintered Nd-Fe-Bmagnet Heavy rare earth elements Grain boundary diffusion process Coercivity

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石油战略储备的新领域——地下盐穴储库

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岩石力学与工程学报 2004年第z2期23卷 4787-4789页

作者：李建中中国石油勘探开发研究院廊坊分院廊坊065007

油气资源储备是平抑油价、稳定供求关系、应对突发事件和保障国家社会经济安全的有效手段。建设地下盐穴储库、进行油气资源储备,在中国是开拓性的新的战略储备领域。介绍了采用水溶岩盐形成地下盐穴储库工程的特点,论述了利用地下岩盐... 详细信息

油气资源储备是平抑油价、稳定供求关系、应对突发事件和保障国家社会经济安全的有效手段。建设地下盐穴储库、进行油气资源储备,在中国是开拓性的新的战略储备领域。介绍了采用水溶岩盐形成地下盐穴储库工程的特点,论述了利用地下岩盐构造的建库条件、建设盐穴储库设计方法和建库工程方面的关键技术。建设地下盐穴储库对于我国建设"西气东输"长距离输气管道系统的安全配套工程、开辟石油战略储备的新领域都具有实际参考价值。

关键词：地下工程,地下盐穴储库,岩盐地质构造,设计方法

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Effect of manganese on the formation of hybrid zirconiumbased conversion coating on low carbon steel surface

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China Welding 2024年第1期33卷 13-19页

作者：严森李建中 Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China

This study revealed the effect of Mn on the formation of hybrid zirconium-based conversion coatings(HZCC)on low carbon *** XPS results indicated that the Mn compounds on the surface of low carbon steel were mainly MnO and Mn_(2)SiO_(4).Combined with the electrochemical measurements,the corrosion resistance of HZCC showed an increase followed by a decrease with increasing Mn concentration,which was related to the Mn_(2)SiO_(4) and SiO_(2) on the surface of low carbon *** excessive Mn concentration resulted in the loss of SiO_(2) and aggregation of Mn_(2)SiO_(4) on the low carbon steel surface,which caused the aggregation of Zr compounds on the surface and reduced the uniformity of the ***,a moderate amount of Mn addition would be beneficial to increase the adhesion of organic coatings.

关键词： Mn concentration hybrid Zr-based conversion coating corrosion resistance adhesion

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Approximate Continuous Aggregation via Time Window Based Compression and Sampling in WSNs

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Wireless Sensor Network 2010年第9期2卷 675-682页

作者： Lei Yu jianzhong li Siyao Cheng 不详

In many applications continuous aggregation of sensed data is usually required. The existing aggregation schemes usually compute every aggregation result in a continuous aggregation either by a complete aggregation procedure or by partial data update at each epoch. To further reduce the energy cost, we propose a sampling-based approach with time window based linear regression for approximate continuous aggregation. We analyze the approximation error of the aggregation results and discuss the determinations of parameters in our approach. Simulation results verify the effectiveness of our approach.

关键词： Approximate Aggregation Continuous Aggregation Sampling Sensor Network

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Why Can China Realize the Continental“Shale Oil Revolution”?

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Journal of Earth Science 2022年第5期33卷 1324-1327页

作者： Caineng Zou Zhi Yang Guoxin li jianzhong li Xianyang liu Yong Tang Tao Jiang Yu Yang Xuefeng Bai Songqi Pan Minghui Lu Zhengdong Lei Bo Cai PetroChina Research Institute of Petroleum Exploration and Development Beijing 100083China PetroChina Qinghai Oilfield Company Dunhuang 736202China PetroChina Tuha Oilfield Company Hami 839009China PetroChina Changqing Oilfield Company Xi'an 710018China PetroChina Xinjiang Oilfield Company Karamay834000China PetroChina Jilin Oilfield Company Songyuan138000China PetroChina Southwest Oil and gas field company Chengdu610000China PetroChina Daqing Oilfield Comapny Ltd. Daqing163712China

0 INTRODUCTION Continental shale oil is a strategic alternative resource to ensure the safety of national oil supply and improve the level of industrial *** is a large country of continental oil resources,accounting for 90%of the total onshore oil resources;and China is also a major producer of continental oil,accounting for about 93%of the total oil production(Yang et al.,2019;Jia et al.,2018).

关键词： Continental shale accounting

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油气藏型地下储气库建库相关技术

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天然气工业 2013年第10期33卷 100-103页

作者：李建中李奇中国石油勘探开发研究院廊坊分院中国石油天然气集团公司油气地下储库工程重点实验室中国科学院渗流流体力学研究所

世界油气藏型地下储气库的调峰工作气量占已经投运地下储气库总工作气量的83%，目前中国天然气调峰应急储备类型也以油气藏型地下储气库的应用最为广泛。为此，分析了全球天然气调峰储备现状及中国天然气调峰应急储备的需求，将国外天... 详细信息

世界油气藏型地下储气库的调峰工作气量占已经投运地下储气库总工作气量的83%，目前中国天然气调峰应急储备类型也以油气藏型地下储气库的应用最为广泛。为此，分析了全球天然气调峰储备现状及中国天然气调峰应急储备的需求，将国外天然气利用发达国家地下储气库的建设历程划分为3个阶段：发展初期、快速发展期和平稳发展期。论述了油气藏型地下储气库在中国天然气供需产业链中的重要作用：油气藏型地下储气库具有油气藏开发历史情况清楚、建库地质资料丰富、投资经济、建设周期短、投产快等优点，建设周期一般只需3-5年，在有条件的天然气消费区域附近首选油气藏改建地下储气库，可实现快速应急调峰的目标。进而阐述了建设油气藏型地下储气库的核心关键技术：①库容恢复与有效工作气量的优化技术；②储气库运行调峰应急能力优化技术；③储气库交变载荷运行状况下的井身结构优化技术。

关键词：天然气调峰应急储备油气藏类型地下储气库建库工程建库技术

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In Situ Rb-Sr Dates of Muscovite and Sulfur Isotope of Pyrite from the Yangshan Gold Deposit in Western Qinling,China

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Acta Geologica Sinica(English Edition) 2023年第5期97卷 1475-1489页

作者： HUANG Yong QI Xianmao WU Qingsong li jianzhong REN Minghua DUAN liu’an XIONG Tao YANG Zhonghu ZHAO Yang CIREN Lamu WEI Wei DUAN Jilin YAN Mengmeng Civil-Military Integration Center of China Geological Survey Chengdu 610036China China University of Geosciences Wuhan 430074China Department of Geoscience University of NevadaLas Vegas 89154-4010USA Yantai Geological Survey Center of Coastal Zone China Geological SurveyYantaiShandong 264000China East China University of Technology Nanchang 330013China

Located along the southern part of the West Qinling orogenic belt,the Yangshan gold deposit is one of the largest in *** major gold ores of Yangshan are disseminated in metasedimentary host rocks with minor native gold amounts in stibnite-gold quartz *** and arsenopyrite are the major Au-bearing *** muscovite from gold-bearing quartz veins was dated using the in situ Rb-Sr method to determine the formation age of the Yangshan gold *** Rb-Sr isochron date of the muscovite yielded 210.1±5.6 Ma(MSWD=1.2).This date is near the lower end of the period of the mineralized granitic dykes(210.49-213.10 Ma).Two stages of gold enriching process are recognized in the gold-bearing pyrite:the first is incorporated with the Co,Cu,As,Ni enrichment;and the second is accompanied by Bi,Co,Ni,Pb,Cu,Sb *** in-situ sulfur isotopic values of pyrites show a restrictedΔ34s range of-1.43‰to 2.86‰with a mean value of 0.43‰.Trace-element mapping and in-situ sulfur isotopic analysis of pyrite suggest that the sulfur deposits are likely derived from a magmatic source and likely assimilated by sulfur from the sedimentary ***,magmatism plays a critical role in the formation of the Yangshan gold deposit.

关键词： Rb-Sr dating trace-element mapping sulfur isotope gold deposit Yangshan Qinling orogenic belt

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节点与决策模式两段式映射的子图查询算法

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高技术通讯 2010年第3期20卷 270-278页

作者：李先通李建中哈尔滨工业大学计算机科学与技术学院哈尔滨150001

针对大规模图集的子图查询问题,给出了一种基于节点与决策模式映射(NDFM)的索引结构——NDFM-Index,并在此索引结构的基础上提出了一种图集的子图查询算法。NDFM-Index利用图中关键节点所携带的结构信息以及邻居的标号分布,与决策模式... 详细信息

针对大规模图集的子图查询问题,给出了一种基于节点与决策模式映射(NDFM)的索引结构——NDFM-Index,并在此索引结构的基础上提出了一种图集的子图查询算法。NDFM-Index利用图中关键节点所携带的结构信息以及邻居的标号分布,与决策模式形成映射,从而不通过枚举直接得到查询图所包含的索引模式,得到更小的候选集。理论与实验的分析结果表明,该算法不但能避免索引筛选过程中对查询图子图的枚举过程,而且能显著地减小候选集尺寸,进而大大降低查询图与候选集之间的子图同构测试次数,提高查询效率。

关键词：图数据集图查询频繁模式决策模式节点向量

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A RP-RP Comprehensive 2DLC Method For Triacylglycerols Samples Analysis

A RP-RP Comprehensive 2DLC Method For Triacylglycerols Sampl...

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第21届全国色谱学术报告会及仪器展览会

作者： Yao XIAO jianzhong li Agilent Technology （China）

＜正＞Nature triacylglycerols （TAGs） are the main constituents （95–98%） of plant oils and animal fats which was an important part of the human diet, as they supply energy and many essential fatty acids （FAs） such as linoleic and linolenic acids, and fat-soluble vitamins such as vitamins （A, D, E, and K）. Artificial TAGs are used as industrial materials as food additives or pharmaceutical accessories. Both nature and artificial TAGs are very complex in compositions, these makes the profiling of TAGs quite difficult.

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