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| 1 | Tectonic Evolution of the Tianhuan Depression and the Western Margin of the Late Triassic Ordos显示文摘The Ordos Basin is one of the most important oil and gas basins in China. Based on surface outcrop, key exploratory wells and seismic reflection data and by using the technology of 'prototype basin recovery', seismic profile 'layer flattening' and 'restoration of balanced section',and other methods, the sedimentary boundary, structure and the evolution history of the Tianhuan depression on the western margin of the Ordos Basin are reestablished. The following results have been obtained. (1) The west boundary of the Late Triassic Ordos Basin was far beyond the scope of the current basin. The basin is connected with the Late Triassic Hexi Corridor Basin, and its western margin did not have tectonic characteristics of a foreland basin. (2) The Tianhuan depression was first formed in the Late Jurassic. At the late stage it was impacted by the late Yanshanian and Himalayan tectonic movement and the depression axis gradually moved eastwards to the present location with a cumulative migration distance of ~30 km. (3) Eastward migration of the depression axis caused adjustment and even destruction of the originally formed oil and gas reservoirs, so that oil and gas remigrated and aggregated, resulting in secondary structural reservoirs formed at high positions on the western flank of the depression. | LI Xiangbo LIU Huaqing WANYAN Rong WEI Lihua LIAO Jianbo FENG Ming MA Yuhu BAI Yunlai | 2009 | Acta Geologica Sinica(English Edition)2009，83，6： | 9 |
| 2 | Properties of Continental Margin and its Hydrocarbon Exploration Significance in Cambrian in the Southern Ordos Kratogen of North China显示文摘It is important to determine the properties of the tectonics in Cambrian period for the sake of prospecting deep hydrocarbon in the near future in the southern Ordos Kratogen of North China. Authors chose the marginal areas of the southern Ordos basin as the object of research, avoided the effects of both the Qinling Orogenic Belts (QOB) and Weihe River Graben (WRG) whose geological structures are too complicated. By surveying typical Cambrian outcrops and profiles in the basin edges and based on the cores of 57 wells which penetrated the Cambrian in the basin, combined with the seismic profiles, the field gammaray measuement results and the carbon isotope analysis, Authors conclude that the southern margin of the Ordos Kratogen during Cambrian was a passive continental margin which resulted from sea-floor spreading of the Ancient Qinling Ocean. Epicontinental sea carbonate sediments formed in the south Ordos continental margin during Cambrian, and were predominant as tidal flat and o litic shoal. Both transgression-regression process and the change in palaeostructure have the obvious cyclicity. Using the junction between the late Nangao age of Qiandong epoch and the early Duyun age of Qiandong epoch as a boundary, each had a full transgression cycle at the upper and lower stages. The early cycle is characterized by high energy clastic littoral facies while the late cycle is characterized by carbonate ramp on which clear water and muddy water developed alternately changing to carbonate platform last. During the early stages, An aulacogen was formed in the middle section of the southern margin. The southern Ordos margin was uplifted and denudated by the Huaiyuan Movement which occurred from the late Furongian age to the middle Flolan age and the history of the passive continental margin ended and entering into a new tectonic cycle. The unconformity surface caused by the Huaiyuan Movement, along with its neighborhood areas where dissolved pores and cavities are developed, may be another important district for good hydrocarbon reservoirs (excluding the unconformity surface on the top of the Ordovician in the Ordos basin). | BAI Yunlai MA Yuhu HUANG Yong LIAO Jianbo LIU Xiaoguang | 2013 | Acta Geologica Sinica(English Edition)2013，87，3： | 9 |
| 3 | Similarity theory for the physical simulation of natural gas hydrate reservoir development显示文摘In order to apply physical simulation results to natural gas hydrate reservoir parameters to provide a theoretical framework for the design of a development plan,an analytical equation method was used to obtain the similarity criteria of natural gas hydrate reservoir development by physical simulation,based on a mathematical model of natural gas hydrate development.Given the approach of numerical simulation,a sensitivity analysis for all parameters was carried out,which specifically demonstrated that initial temperature is the most important parameter.Parameters of thermal conductivity coefficients are not necessary for conducting the NGH dissociation process,which will fundamentally simplify the design and establishment of the model.The analysis provides a sound theoretical basis and design principles for particular similarity. | LIU Yaping CHEN Yueming BAI Yuhu LI Shuxia | 2010 | Mining Science and Technology2010，20，5： | 7 |
| 4 | Sensitivity analysis of dimensionless parameters for physical simulation of water-flooding reservoir显示文摘A numerical approach to optimize dimensionless parameters of water-flooding porous media flows is proposed based on the analysis of the sensitivity factor defined as the variation ration of a target function with respect to the variation of dimensionless parameters. A complete set of scaling criteria for water-flooding reservoir of five-spot well pattern case is derived from the 3-D governing equations, involving the gravitational force, the capillary force and the compressibility of water, oil and rock. By using this approach, we have estimated the influences of each dimensionless parameter on experimental results, and thus sorting out the dominant ones with larger sensitivity factors ranging from 10?4 to 100. | BAI Yuhu LI Jiachun ZHOU Jifu | 2005 | Science China(Technological Sciences)2005，48，4： | 7 |
| 5 | The simulation of nature gas production from ocean gas hydrate reservoir by depressurization显示文摘The vast amount of hydrocarbon gas encaged in gas hydrates is regarded as a kind of future potential energy supply due to its wide deposition and cleanness. How to exploit gas hydrate with safe, effective and economical methods is being pursued. In this paper, a mathematical model is developed to simulate the hydrate dissocia- tion by depressurization in hydrate-bearing porous medium. The model can be used to analyze the effects of the flow of multiphase fluids, the intrinsic kinetic process of hydrate dissociation, the endothermic process of hydrate dissociation, ice-water phase equilibrium, the variation of permeability, the convection and conduction on the hydrate dissociation and gas and water production. The nu- merical results agreed well with the 1-D and 2-D experiments. The numerical results for 3-D hydrate reservoir show that in the first stage of depressurization gas can be produced effectively from hydrate reservoir. With the depletion of reservoir energy because of endothermic process of hydrate dissociation the gas rate decreases rapidly. Then, methods such as thermal stimulation and inhibitor injection should be considered to replace | BAI YuHu LI QingPing LI XiangFang DU Yan | 2008 | Science China(Technological Sciences)2008，51，8： | 6 |
| 6 | Numerical simulation on gas production from a hydrate reservoir underlain by a free gas zone显示文摘Physical and mathematical models of gas production by depressurization from a hydrate reservoir underlain by a free gas zone are established. The mathematical model can interpret the effects of the flow of multiphase fluids, the process of hydrate dissociation, ice-water phase transition, the variation of permeability, the convection and conduction on hydrate dissociation and gas and water production. The evolutions of temperature, pressure, and saturations in the hydrate and free gas zones are eluci-dated during gas production. The variation of some parameters, such as gas and water rates, with time is presented. The results show that the overlying hydrate zone can supply a certain amount of gas to improve the output of a production well and evidently prolong the lifespan of a gas reservoir. | BAI YuHu LI QingPing LI XiangFang DU Yan | 2009 | Chinese Science Bulletin2009，54，5： | 4 |
| 7 | Elastic Scattering of 7Be on Pb Target显示文摘 | Yang Yanyun Wang Jiansong Wang Qi Huang Meirong Ma Junbing Ma Peng Cao Xiguang Han Jianlong Bai Zhen Jin Shilong Hu Qiang Jin Lei Chen Jiangbo Zhang Xueying Chen Ruofu Hu Zhengguo Xu Shiwei Zhen Chuan Xu Zhiguo Xu Hushan Duan Liming Sun Zhiyu Chen Zhiqiang He Jianjun Li Songlin Lei Xiangguo Fu Fen Zhang Xueheng Yuan Xiaohua Du Chengming Yan Xinshuang Hu Jun Tang Shuwen Ye Ruiping Yang Kun Shi Fudong Zhang Wei Chen Ze Li Long Xu Xing Liu Longxiang Zhang Liyong Lin Qingyun Gou Boxing Xu Ge Zhou Xionghong Zhang Yuhu Xiao Guoqing | 2011 | IMP & HIRFL Annual Report2011，，1： | 4 |
| 8 | Predictive Model of Ursodeoxycholic Acid Treatment Response in Primary Biliary Cholangitis显示文摘Background and Aims:Although ursodeoxycholic acid(UDCA)treatment in primary biliary cholangitis is effective in many patients,there are still many people who respond poorly to it.Identifying and intervening these patients early is important.Therefore,exploring the risk factors and proposing a predictor index to predict the UDCA treatment nonresponse earlier among primary biliary cholangitis patients were the aims of this research.Methods:A total of 135 primary biliary cholangitis patients treated with UDCA(13–15 mg/kg/d)were enrolled in this retrospective study.The response to treatment was evaluated based on Paris I criteria.The univariate and logistic multivariate regression analyses were adopted to determine the independent risk factors and propose a predictor index.Receiver operating characteristic curve was used to evaluate the predictive ability of the predictor index.Results:Total bilirubin,albumin,globulin,immunoglobin M,and aspartate aminotransferase-to-platelet ratio index were the five independent risk factors associating with early biochemical nonresponse to UDCA treatment.Based on these factors,we established a predictor index with the predictive value being 0.886(sensitivity:82.80%,specificity:84.40%).Conclusions:We developed a predictor index that had an accurate prediction of the early biochemical nonresponse to UDCA treatment,which is expected to provide valuable information for the high-risk group before treatment begins. | Yanyun Shu Yuhu Song Tao Bai Xiaoli Pan Haitao Shang Ling Yang Jin Ye Fan Du | 2021 | Journal of Clinical and Translational Hepatology2021，9，2： | 1 |
| 9 | A small unmanned polar research aerial vehicle based on the composite control method显示文摘 | Xusheng Lei Lang Bai Yuhu Du Cunxiao Miao Yang Chen Tianmiao Wang | 2010 | Mechatronics2010，，5： | 1 |
| 10 | 2 - 30 Progress in Analyzing RIBLL1 17F+p Experimental Data显示文摘 | He Jianjun Hu Jun Xu Shiwei Chen Zhiqiang Zhang Xueying Wang Jiansong Yu Xiangqing Li Long Zhang Liyong Yang Yanyun Ma Peng Wang Hongwei Tian Wendong Zhang Xueheng Su Jun Li Ertao Hu Zhengguo Guo Zhongyan Xu Xing Yuan Xiaohua Lu Wan Lei Xiangguo Yu Yuhong Tang Shuwen Ye Ruiping Chen Jinda Jin Shilun Du Chengming Wang Shitao Ma Junbing Liu Longxiang Bai Zhen Sun Zhiyu Li Xiangqing Zhang Yuhu Zhou Xiaohong Xu Hushan | 2010 | IMP & HIRFL Annual Report2010，，1： | 0 |
| 11 | Theoretical analysis of microscopic oil displacement mechanism by viscoelastic polymer solution显示文摘The microscopic oil displacement mechanism in viscoelastic polymer flooding is theoretically analyzed with mechanical method.The effects of viscoelasticity of polymer solution on such three kinds of residual oil as in pore throat,in sudden expansion pore path,and in dead end are analyzed.Results show that the critical radius of mobile residual oil for viscoelastic polymer solution is larger than that for viscous polymer solution,which makes the oil that is immobile in viscous polymer flooding displaced u... | Yuhu Bai,~(1,2,a) Xiansong Zhang,~(1,2)and Guoshi Zhao~3 1.State Key Laboratory of Offshore Oil Exploitation,Beijing 100027,China 2.China National Offshore Oil Corporation Research Institute,Beijing 10027,China 3.No.8 Oil Production Plant,Daqing Oilfield Limited Company,PetroChina,Daqing 163514,china | 2011 | Theoretical & Applied Mechanics Letters2011，1，2： | 0 |
| 12 | β-decay study of neutron-rich nucleus ^(34)Al显示文摘The'island of inversion'has been known for over a quarter century,since Warburton et al.[1]proposed that nuclei with intruder ground states would constitute a 3×3 square with Z=10-12,N=20-22 in 1990.Uncovering the underlying inversion mechanism and exploring the scope of the island have attracted significant theoretical and experimental efforts in the following years.Now it is well known that the reduction of N=20 shell gap,which is likely caused by the | Rui Han XiangQing Li WeiGuang Jiang ZhiHuan Li Hui Hua ShuangQuan Zhang CenXi Yuan DongXing Jiang YanLin Ye Jing Li ZongHao Li FuRong Xu QiBo Chen Jie Meng JianSong Wang Chuan Xu YeLei Sun ChunGuang Wang HongYi Wu ChenYang Niu ChenGuang Li Chao He Wei Jiang PengJie Li HongLiang Zang Jun Feng SiDong Chen Qiang Liu XiaoChi Chen HuShan Xu ZhengGuo Hu YanYun Yang Peng Ma JunBing Ma ShiLun Jin Zhen Bai MeiRong Huang Yuan Jie Zhou WeiHu Ma Yong Li XiaoHong Zhou YuHu Zhang GuoQing Xiao WenLong Zhan | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，4： | 0 |
| 13 | Stability analysis of the moving interface in piston- and non-piston-like displacements显示文摘从宏观的观点,包含水库和运作的参数的表达式为在 piston-piston-like 和 non-piston-like 排水量调查动人的接口的稳定性被建立。在 axi 对称的像活塞的排水量的情况中,稳定性与动人的接口位置和水有关给活动性比率上油。动人的接口的稳定性上的毛状的效果取决于动人的接口是否已经是稳定的并且与水库岩石的可湿性相关。在 non-piston-like 排水量的情况中,前面的稳定性被相对渗透和活动性比率管理。 | Yuhu Bai Jifu Zhou Qingping Li | 2008 | Acta Mechanica Sinica2008，24，4： | 0 |
| 14 | Experimental simulation of gas hydrate decomposition in porous sediment显示文摘Gas hydrate decomposition in sediments involves complicated multiphase flow and heat and mass transfer processes because of heat absorption by solid hydrates. Factors affecting gas hydrate decomposition in sediments include sediment type, mineral composition, pore size distribution, particle size, pore water composition, hydrate saturation distribution, initial formation pressure and temperature and cement characteristics. In this paper, experimental simulations of gas hydrate decomposition are carried out on an artificial core to investigate the effects of initial pressure and temperature, particle size and pore size. The experiments show that the characteristics of gas hydrate decomposition in sediments differ completely from those in a pure water system. The decomposition rate of hydrate sediments increases with the initial pressure increasing and decreasing temperatures. Furthermore, the decomposition rate of hydrate sediments decreases with decreasing particle size and increasing pore size. | YU XiChong LI Gang LI QingPing LI XiaoSen ZHANG Yu PANG WeiXin BAI YuHu | 2013 | Science China Earth Sciences2013，56，4： | 0 |
| 15 | Investigation of Proton Resonant Properties in laNe via 17F+p and Its Astrophysical Implications for 14O(α,p)17F Stellar Reaction显示文摘 | Hu Jun He Jianjun Xu Shiwei Chen Zhiqiang Zhang Xueying Wang Jiansong Yu Xiangqing Li Long Zhang Liyong Yang Yanyun Ma Peng Wang Hongwei Tian Wendong Yuan Xiaohua Lu Wan Zhang Xueheng SuJun Li Ertao Hu Zhengguo Guo Zhongya n Xu Xing Lei Xiangguo Yu Yuhong Tang Shuwen Ye Ruiping Chen Jinda Jin Shilun Du Chengming Wang Shitao Ma Junbing Liu Longxiang Bai Zhen Sun Zhiyu Li Xiangqing Zhang Yuhu Zhou Xiaohong Xu Hushan | 2009 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2009，，1： | 0 |
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