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| 1 | Accumulation process and model for the Ordovician buried hill reservoir in the western Lunnan area,the Tarim Basin显示文摘The Ordovician buried hill reservoir in the western Lunnan area, a type of dissolved fracture and cavernous reservoir, is mainly composed of heavy oil. The oil is the mixture sourcing from the Middle-Lower Cambrian and Middle-Lower Ordovician, with three stages of pool forming process: (1) the destruction and parallel migration/accumulation during the late Caledonian to early Hercynian; (2) the oil and gas accumulation during the late Hercynian characterized by adjustment upward along faults and parallel migration/accumulation; (3) the formation of heavy oil during the latest Hercynian. The Ordovician buried hill reservoir is affected by the diffusion of light oil and gas but had no hydrocarbon charging during the late Yanshan period to Himalayan period, but in this period, formed the association of heavy oil and dissolved gas cracked from crude oil with dry coefficient of 0.91-0.96. The study on accumulation process of the Ordovician buried hill reservoir has important implications for the exploration potential of early oil and gas accumulation in the cratonic area of the Tarim Basin. | ZHAO MengJun PAN WenQing HAN JianFa LIU ShaoBo QIN ShengFei ZHANG BaoMin | 2007 | Chinese Science Bulletin2007，52，A01： | 6 |
| 2 | Pool-Forming Stages and Enrichment Models of Medium- to High-Rank Coalbed Methane显示文摘coalbed 甲烷的形成水池的机制有它的自己的特征。在这份报纸,基于在中国的典型的忍受煤的盆上的研究,这被指出媒介的水库形成 -- 到高等级的 coalbed,甲烷经历了三个批评阶段:coalbed 甲烷产生和吸附阶段和保藏舞台。地区性的构造进化,水动力学条件和封上的条件在 coalbed 甲烷解吸附作用散开和保藏的阶段起重要作用。中等 -- 到高等级的 coalbed,甲烷有丰富模型的三种类型,也就是说最有利,相对有利,并且相反的丰富模型。 | SONG Yan ZHAO Mengjun HONG Feng LIU Shaobo QIN Shengfei WANG Hongyan | 2010 | Acta Geologica Sinica(English Edition)2010，84，6： | 4 |
| 3 | Features of the type Ill-like source rock and its generated natural gas显示文摘The mother matter of Ordovician source are mainly sapropelic and generate oil in mature stage, since the high plants did not appear in Ordovician period, which is well known by internal and external scholars. Now we find a kind of Orodovician source rock generating mainly light oil and gas in mature stage during appraising source rocks in the Tarim Basin. The organic matters of this source rock are chiefly constructed by benthic brown algae in organisms (showing as macro algae), and are similar to humic source in hydrocarbon generation. The natural gas generated by this kind of source matters is obviously different from the sapropelic gas. | ZHAO Mengjun, ZHANG Baomin, BIAN Lizeng, XIAO Zhongyao, LI Mei, PENG Yan & QIN Shengfei1. Research Center of Exploration of TPEDB, CNPC, Korla 841000, China 2. Research Institute of Petroleum Exploration & Development, CNPC, Beijing 100083, China 3. Department of Earth Science, Nanjing University, Nanjing 210002, China | 2000 | Chinese Science Bulletin2000，45，9： | 2 |
| 4 | The key stage and moment of coalbed gas reservior evolution in the Qinshui Basin,China显示文摘The evolution of coalbed gas reservoir is characterized by coalbed gas geochemistry and gas content. On the basis of burial history and thermal history, the forming process of coalbed gas reservoir and the gas accumulative history in the Qinshui Basin are discussed in this paper. The difference of the thermal history, geochemistry characteristic, and gas accumulative history between Yangcheng and Huozhou areas shows that the formation of coalbed gas reservoir in the Qinshui Basin is controlled by the geological process in the critical stage and the critical moment. The components and isotopes of coalbed methane are determined by the stage at which the coal maturation reaches its maximum rank. The coalbed methane accumulative history is related to the temperature and pressure of the coal burial history, because the coalbed gas is mainly in adsorptive state. It is stated that the gas content in the coal seam is controlled by the moment when the coal seam is uplifted to the shallowest position. | ZHAO Mengjun SONG Yan SU Xianbo LIU Shaobo QIN Shengfei HONG Feng LIN Xiaoying | 2005 | Chinese Science Bulletin2005，50，S1： | 2 |
| 5 | Calculation of Hardness Scale for Elements on Density Functional Theory (DFT) with Generalized Local Density Approximation (LDA) and Modif ied Slater Transition2State (MST)显示文摘 | QIN Renhui UANG Ying | 2005 | Journal of Southwest China Normal University (Natural Science)2005，30，： | 1 |
| 6 | Study on process and model of CBM dissipating显示文摘Coal Bed Methane(CBM) occurs in coal seams in the states of adsorption gas, free gas and water-dissolved gas. Its dissipating starts with desorption, and then it dissipates outwards in the states of free gas and water-dissolved gas. The dissipating approach is classified to three patterns: Free gas in pores dissipates through the cover rocks; hydrocarbon molecules in the cap-rocks and reservoir diffuse because of concentration gradient; gas dissolving in water is directly taken away by water. According to the controlling factors of CBM conservation and considering the cover rocks, soleplate, hydrological region identification and dissipating theory, three geological models of CBM dissipating are built: closed system model, lateral hydrological closed model and open system model. | Feng Hong Yan Song Zhenhong Chen Mengjun Zhao Shaobo Liu Shengfei Qin Guoyou Fu | 2005 | Chinese Science Bulletin2005，50，S1： | 1 |
| 7 | Extended Rate Equation for Flux Motion in High-T_(c) Superconductors显示文摘The rate equation for flux motion in high-T_(c) superconductors is extended to take the contribution of field sweep into account in this work.It is shown that the time and field sweep rate(H)dependence of magnetization are equivalent approaches to the study of flux creep properties in high-T_(c) superconductors.The agreement of the effective activation energy Ueff(J)extracted from the time relaxation and that from magnetic hysteresis loops measurements on a melt-textured YBa2Cu3O6+x sample supports this extended rate equation for flux motion in high temperature superconductors. | JI Helin QIN Mengjun JIN Xin YAO Xixian FU Yaoxian | 1994 | Chinese Physics Letters1994，11，6： | 0 |
| 8 | Magnetic Properties of Partial Melt(Tl_(0.5)Pb_(0.5))(Ba_(x)Sr_(0.8))_(2)Ca_(2)Cu_(3)O_(y)(x=0.1,0.2)Superconductors显示文摘Magnetic measurements have been carried out on partial melt(Tl_(0.5)Pb_(0.5))(Ba_(x)Sr_(0.8))_(2)Ca_(2)Cu_(3)O_(y)(x=0.1,0.2)(TI-1223)samples,which indicate that higher melting temperature and longer melting time can be used to obtain Tl-1223 compound with better superconducting properties.On the contrary,introducing of Ba vacancy into Tl-1223 samples results in worse superconducting properties.At the end,the power law relationship between the critical current density and the applied field is explained by the flux creep model and the collective pinning theory. | QIN Mengjun CAI Dianxian JIN Xin YAO Xixian PENG Huotian PENG Qiuyun ZHOU Sihai | 1995 | Chinese Physics Letters1995，12，9： | 0 |
| 9 | Fast Solution Method for the Large-scale Unit Commitment Problem with Long-term Storage显示文摘Long-term storage(LTS)can provide various services to address seasonal fluctuations in variable renewable energy by reducing energy curtailment.However,long-term unit commitment(UC)with LTS involves mixed-integer programming with large-scale coupling constraints between consecutive intervals(state-of-charge(SOC)constraint of LTS,ramping rate,and minimum up/down time constraints of thermal units),resulting in a significant computational burden.Herein,an iterative-based fast solution method is proposed to solve the long-term UC with LTS.First,the UC with coupling constraints is split into several sub problems that can be solved in parallel.Second,the solutions of the sub problems are adjusted to obtain a feasible solution that satisfies the coupling constraints.Third,a decoupling method for long-term time-series coupling constraints is proposed to determine the global optimization of the SOC of the LTS.The price-arbitrage model of the LTS determines the SOC boundary of the LTS for each sub problem.Finally,the sub problem with the SOC boundary of the LTS is iteratively solved independently.The proposed method was verified using a modified IEEE 24-bus system.The results showed that the computation time of the unit combination problem can be reduced by 97.8%,with a relative error of 3.62%. | Bo Li Chunjie Qin Ruotao Yu Wei Dai Mengjun Shen Ziming Ma Jianxiao Wang | 2023 | Chinese Journal of Electrical Engineering2023，9，3： | 0 |
| 10 | Flux Creep Determination of Field Dependence of Magnetic J_(c) at Low Temperatures显示文摘The effective activation energy of one HgBaCaCuO 1223 superconductor as a function of current density was extracted from the magnetic relaxation measurements below 30K,and found to obey a power law.We also obtained effective activation energy as a function of current density from the magnetic hysteresis loops(M-H).The data sets for the M-H loops at different temperatures overlap each other,and all fall on the smooth U_(eff)(J,0)curve based solely on the magnetization relaxation measurements.This indicates that the field dependence of magnetic critical current density is determined by the flux creep via nonlinear effective activation energy at low temperatures. | RUI Ying JI Helin XU Xiaonong QIN Mengjun SHAO Huimin JIN Xin YAO Xixian | 1995 | Chinese Physics Letters1995，12，4： | 0 |
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