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formation models and Distribution of Oil and Gas Pools in Tarim Basin, China

Journal of China University of Geosciences 2008年第6期19卷 665-674页

作者：龙胜祥 Exploration and Production Research Institute SINOPEC

This article reports the main formation models and distribution of the oil and gas pools in Tarim basin, China, including （1） occurrence of the found oil and gas pools, （2） main formation models of oil and gas pools, and （3） distribution law of oil/gas pools. Petroleum is distributed widely in the strata of Tarim basin from the Sinian at the bottom to the Neogene at the top. However, the found oil and gas fields are mainly distributed in Shaya （沙雅） uplift, Tazhong （塔中） uplift, and Kuche （库车） depression. This article presents 4 main formation models, namely, early formation and long-term preservation, early formation and late reformation, middle-late multiphase-multisource formation, late single-stage formation. Tarim basin is very rich in petroleum resources. Long-term inherited intrabasinal paleohighs and slope zones are the most favorable areas for accumulation of hydrocarbons, but the types of oil and gas pools are different from area to area. The control of unconformities and faults on hydrocarbon accumulating is prominent in Tarim basin. Preservation conditions are of utmost importance. formation of some oil and gas pools is the result of reforming and re-accumulating of early accumulated hydrocarbons.

关键词： oil and gas pool formation model distribution occurrence Tarim basin China

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Effect of welding speed on the material flow patterns in friction stir welding of AZ31 magnesium alloy

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Rare Metals 2007年第2期26卷 158-162页

作者： ZHANG Hua Wu Huiqiang Huang Jihua LIN Sanbao WU Lin Materials Science and Engineering School University of Science and Technology Beijing Beijing 100083 China Beijing Institute of Astronautical Systems Engineering Beijing 100076 China State Key Lab of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 China

The clear zigzag-line pattern on transverse cross sections can be used to explain the formation mechanism of the weld nugget when friction stir welded AZ31 magnesium alloy without any other insert material is used as mark. It provides a simple and useful method to research the joining mechanism of friction stir welding. The rotation speed is kept at 1000 r/min and the welding speed changes from 120 mm/min to 600 mm/min. The macrostructure on the transverse cross section was divided into several parts by faying surface. The results show that the shape and formation procedure of the weld nugget change with the welding speed. There are two main material flows in the weld nugget： one is from the advancing side and the other is from the retreating side. A simple model on the weld nugget formation of FSW is presented in this article.

关键词： AZ31 magnesium alloy friction stir welding faying surface materials flow formation model

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The characteristics, formation and exploration progress of the potash deposits on the Khorat Plateau, Thailand and Laos, Southeast Asia

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China Geology 2020年第1期3卷 67-82页

作者： Li-jian Shen Nuchit Siritongkham Ministry of Natural Resources Key laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological SciencesBeijing 100037China Mineral Resources Division Department of Mineral ResourcesMinistry of Natural Resources and Environment75/10 RamaⅥRoadRatchathewiBangkok 10400Thailand

The giant potash deposit on the Khorat Plateau is one of the most promising targets for exploitation of potassium *** far,many researches and geologic survey have been conducted on the giant potash ***,it is necessary to make an overall review on the potash *** potash deposit on the Khorat Plateau was formed during the Middle to Late Cretaceous,during which seawater was enriched in Ca2+and depleted in SO42-compared with those of modern *** addition to seawater,continental water and hydrothermal fluids could have affected the evaporite *** seawater was probably derived from Tethys ocean,and the brine should have evaporated to some extent before entering into the basin systems based on the evidence of absence of carbonates and unproportionate sulphate compared with chloride *** paleo-climate during Middle to Late Cretaceous was characterized as high temperature and extremely arid environment,which is favourable for deposition of potassium-magnesium saline *** major saline minerals are of anhydrite,halite,carnallite,sylvite and,tachyhydrite,with trace amounts of *** resources of the potash deposit on the Khorat Plateau could be approximately as much as 400×109 t of carnallite and 7×109 t of *** evaporite sequences have been deformed and altered by postdepositinal processes,including tectonic movements and chemical *** domes were formed in the postdepositional *** on the analyses of geophysical surveys and drilling projects,high-quality sylvinite ores are commonly found at the flanks of those salt domes due to incongruent dissolution of *** furure potential prospecting areas for the highquality sylvinite ores would be on the edges of the Khorat Plateau.

关键词： Potash deposit Cretaceous formation model Seawater Post-depositional alteration Potential exploration target Mineral exploration engineering Thailand Laos Southeast Asia

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中国竞技体育国家队社会化组建模式的改革探索

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体育 2019年第10期

作者：赵吉峰邵桂华

通过分析中国竞技体育国家队社会化组建模式的改革动因，探讨国家队社会化组建模式的演化轴线，构建国家队在不同发展阶段的社会化组建模式，提出国家队社会化组建模式发展的推进策略。研究认为，国家队社会化组建模式的改革沿着“纵向... 详细信息

通过分析中国竞技体育国家队社会化组建模式的改革动因，探讨国家队社会化组建模式的演化轴线，构建国家队在不同发展阶段的社会化组建模式，提出国家队社会化组建模式发展的推进策略。研究认为，国家队社会化组建模式的改革沿着“纵向推进”的初级社会化向“纵横联通”的成熟社会化的方向发展。在初级社会化阶段，先后经由“体育总局+地方”“体育总局+协会”“体育总局+企业”等模式形成“体育总局+社会”组建模式；在成熟社会化阶段，体育协会、高校、俱乐部等社会系统能够单独或相互联合组建国家队，形成国家队“社会+”组建模式。推进国家队组建模式社会化的主要策略有：顶层设计上战略规划与路径探索要并进；发展目标上奥运备战与深化改革要并重；发展动力上创新驱动与复制推广要并用；管理机制上政策扶持与制度治理要并立；系统运行上自组织与他组织要并行。

关键词：国家队竞技体育组建模式社会化 national teams competitive sports formation model socialization

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