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Determining the fluorescent components in drilling fluid by using NMR method

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Chinese Journal Of Geochemistry 2015年第3期34卷 410-415页

作者： Wang Zhizhan qin liming Lu Huangsheng Li Xin Cai qing SINOPEC Research Institute of Petroleum Engineering Niumai Electronic Technology Limited Company

Fluorescent additives can reduce drilling operation risks, especially during high angle deviated well drilling and when managing stuck pipe problems. However, they can affect oil discovery and there is a need to reduce the level of fluorescents or change the drilling fluids to prevent loss of drilling velocity and efficiency. In this paper, based on the analysis of drilling fluids by NMR with high sensitivity, solid and liquid additives have been analyzed under conditions with different fluorescent levels and temperatures. The results show that all of the solid additives have no NMR signal, and therefore cannot affect oil discovery during drilling. For the liquid additives with different oil products, the characterizations can be quantified and evaluated through a T2 cumulated spectrum, oil peak(T2g), and oil content of the drilling fluids. NMR can improve the application of florescent additives and help us to enhance oil exploration benefits and improve drilling operations and efficiency.

关键词：核磁共振法钻井液荧光灯液体石油产品组分测定核磁共振信号钻井作业

Gas desorption characteristics of the high-rank intact coal and fractured coal

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International Journal of Mining Science and Technology 2015年第5期25卷 819-825页

作者： Lu Shouqing Cheng Yuanping qin liming Li Wei Zhou Hongxing Guo Haijun National Engineering Research Center of Coal Gas Control China University of Mining & Technology School of Safety Engineering China University of Mining & Technology Key Laboratory of Gas and Fire Control for Coal Mine China University of Mining & Technology

The objective of this work is to study the gas desorption characteristics of the high-rank intact coal and fractured *** gas adsorption,mercury porosimetry and gas desorption experiments were carried out in this ***,the theories of thermodynamics,diffusion mechanism and desorption kinetics were used to estimate the gas desorption *** results of gas adsorption experiments show that the initial isosteric adsorption heat of the intact coal is greater than that of the fractured coal,indicating that the gas molecules desorb more easily from fractured coal than intact *** the mercury porosimetry,we find that the diffusion channels of fractured coal are more developed than those of intact *** difficult diffusion form dominates in the intact coal during the gas diffusing,while the easy diffusion form dominates in the fractured *** results of gas desorption experiments show that the initial gas desorption volume and velocity of the fractured coal are both greater than those of the intact *** the Fick diffusion law,the study calculates the gas diffusion coefficients of the intact coal and fractured *** diffusion coefficients of the fractured coal are 2 times and 10 times greater than those of the intact coal at the time of 0-120 and 0-10 min,respectively.

关键词： Intact coal Fractured coal Isosteric adsorption heat Diffusion coefficient

Oil-source correlation of the pre-Tertiary in the Huanghua Depression:Insights from stable carbon isotopes and molecular markers

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Chinese Journal Of Geochemistry 2008年第3期27卷 265-275页

作者： YANG Yongcai ZHANG Zhihuan LI Wei qin liming FANG Chaohe LIN Yuxiang LIU Hua State Key Laboratory of Petroleum Resource and Prospecting China University of Petroleum Changping 102249 China China National Offshore Oil Corporation Research Center Beijing 100027 China Sinopec International Petroleum Exploration ＆ Production Co. Ltd. Beijing 100083 China Langfang Branch China Research Institute of Petroleum Exploration and Development Langfang 065007 China Geological Scientific Research Institute Shengli Oilfield Dongying 257015 China

Stable carbon isotopes were used together with molecular markers to constrain genetic relationships between sandstone extracts and potential source rocks in the pre-Tertiary in the Huanghua Depression,North *** of the extracts from Permo-Carboniferous terrigenous mudstones and Ordovician marine carbonates indicated that their prominent differences are in stable carbon isotopes,molecular markers and thermal *** the extracts of the Mesozoic and Lower Permian Xiashihezi Formation sandstones have some similar iso-topic characteristics,molecular markers data provide a good correlation between the Upper Jurassic-Lower Cretaceous oils and the Upper Carboniferous Taiyuan Formation mudstones,and between the Lower Permian Xiashihezi Formation oils and the Lower Permian *** results showed that the Upper Jurassic-Lower Cretaceous sandstone oils were derived chiefly from the Upper Carboniferous Taiyuan Formation terrigenous mudstones and that the Lower Permian Xiashihezi Formation oils were sourced from the Lower Permian Shanxi Formation and Xiashihezi Formation terrigenous mudstones.

关键词：石油资源中生代洼地奥淘纪

A study on hydrocarbon generation potential of deep source rocks and gas sources in Changling Fault Depression,Songliao Basin

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Chinese Journal Of Geochemistry 2011年第2期30卷 255-263页

作者： Zan, Ling Zhang, Zhihuan Fei, Jiajia Wu, Yuyuan Zhang, Zhenying qin, liming Mei, Ling Li, Wenhao State Key Laboratory of Petroleum Resource and Prospecting China University of Petroleum Beijing 102249 China East China Branch of SINOPEC Nanjing 210011 China Beijing Economic Management Institute Beijing 100102 China

Through natural gas exploration in the Changling Fault Depression,abundant natural gas flows were obtained and high-quality source rocks were also *** on bulk analyses,organic matter abundance,organic matter type and thermal maturity of the source rocks were studied *** the same time,gas gener-ating intensity and gas generating quantity were quantitatively analyzed by using basin modeling *** results indicated that gas source rocks of the Shahezi Formation are characterized by abundant organic matter and dark mudstone distributions and high-over thermal *** possess high gas generating intensity with the biggest value surpassing 500×108 m3/km2,and large gas generating quantity,accounting from 74.40% of the total *** Yingcheng Formation has good gas-source rocks with moderate dark mudstone and relatively high organic *** has type-Ⅲ organic matter and low-over thermal *** gas generating intensity is moderate,between 20×108 and 60×108 m3/*** gas generating quantity is 13.63% of the total *** Huoshiling Formation has relatively good source rocks with limited dark mudstone and low organic *** has type-Ⅲ kerogen and over-thermal *** gas generating quantity is 7.10% of the total *** Denglouku Formation has poor-gas source rocks,and is characterized by undeveloped dark mudstone and low organic matter *** has type-Ⅲ organic matter and low-high thermal *** gases in the Changling Fault Depression mainly originated from the Shahezi Formation,and secondarily from the Yingcheng *** contribution of the Huoshiling Formation gas source rocks is relatively small.

关键词： the Changling Fault Depression dark mudstone the Shahezi Formation hydrocarbon basin modeling

基于斑马鱼模型的酸枣仁复合保健酒助睡眠功效和安全性研究

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中国酿造 2024年第6期43卷 146-150页

作者：芮君君秦黎明郭静刘洪星蒋振何宏魁曹润洁马金同安徽瑞思威尔科技有限公司安徽亳州236801

为研究酸枣仁复合保健酒的助睡眠功效和安全性,以受精后5 d斑马鱼为实验对象,通过水溶给予对戊四唑(PTZ)建立斑马鱼失眠模型,利用行为分析仪测定模型斑马鱼和正常斑马鱼的觉醒活动量和觉醒总时间,评价酸枣仁复合保健酒改善睡眠功效。以... 详细信息

为研究酸枣仁复合保健酒的助睡眠功效和安全性,以受精后5 d斑马鱼为实验对象,通过水溶给予对戊四唑(PTZ)建立斑马鱼失眠模型,利用行为分析仪测定模型斑马鱼和正常斑马鱼的觉醒活动量和觉醒总时间,评价酸枣仁复合保健酒改善睡眠功效。以受精后2 d斑马鱼为实验对象,通过斑马鱼组织器官毒性发生率评价酸枣仁复合保健酒安全性。结果表明,酸枣仁复合保健酒具有改善模型斑马鱼和正常斑马鱼睡眠的功效,具体表现为:显著降低模型斑马鱼的觉醒活动量和觉醒总时间(P<0.05),降低了正常斑马鱼的觉醒活动量和觉醒总时间。斑马鱼急性毒性实验结果显示,酸枣仁复合保健酒在2.83μL/m L给予量下对斑马鱼是安全的,超过8.48μL/m L给予量对斑马鱼产生毒性作用。综上,酸枣仁复合保健酒对斑马鱼具有助睡眠功效。

关键词：酸枣仁复合保健酒助睡眠安全性斑马鱼

Source and commingling features of light oils from the Chepaizi uplift in the Junggar Basin, Northwest China

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Chinese Journal Of Geochemistry 2010年第2期29卷 121-129页

作者： ZHANG Zhihuan qin liming LI Wei WANG Chunjiang QIU Nansheng MENG Xianlong ZHANG Zhenying YUAN Dongshan1 State Key Laboratory of Petroleum Source and Prospecting China University of Petroleum Beijing 102249 China SINOPEC International Petroleum Exploration and Production Corporation Beijing 100083 China West Branch of Exploration and Development Institute ofSINOPEC Xinjiang 830011 China Beijing Economic Management College Hebei 102602 China

Geochemical composition characteristics of light oils from the Tertiary in the west of the Chepaizi uplift in the Junggar basin, northwest China, are distinct from those of biodegraded oils derived from the Permian in the study area and crude oils from some adjacent oil fields such as the Chepaizi and Xiaoguai oilfields. Oil source corre-lation shows that light oils in the study area have similar n-alkane and isoprenoid distribution patterns and carbon isotope compositions with the coal-derived oils from the Jurassic, and display obvious discrepancy on biomarker composition characteristics with the Cretaceous source rock extracts, inferring that they are probably the mixed oils from the Jurassic coal measures and Cretaceous source rocks. In this study, combined with the geochemical data of coal-derived oils from the Jurassic and Cretaceous source rocks or crude oils from the Cretaceous, the source and commingling features of the Tertiary crude oils of Well Pai 2 and Well Pai 8 were investigated. The proportion of the two sources in the mixed crude oils was estimated, and the hydrocarbon accumulation pattern of reservoirs in the study area was established.

关键词：准噶尔盆地原油特征中国西北轻质原油隆起原油地球化学特征碳同位素组成煤系烃源岩

Tmem39b promotes tumor progression and sorafenib resistance by inhibiting ferroptosis in hepatocellular carcinoma

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Oncology Research 2024年第8期32卷 1347-1357页

作者： MING ZHUANG XUE ZHANG LU LI liming WEN JIAMIN qin Department of Gastroenterology Sichuan Mianyang 404 HospitalMianyang621000China

Hepatocellular carcinoma(HCC)poses a signiﬁcant threat to human *** to sorafenib in the chemotherapy of HCC is a common and signiﬁcant issue that profoundly impacts clinical *** several members of the transmembrane(TMEM)protein family have been implicated in the occurrence and progression of HCC,the association between TMEM39b and HCC remains *** study revealed a signiﬁcant overexpression of TMEM39b in HCC,which correlated with a poor *** investigation revealed that RAS-selective lethal 3(RSL3)induced pronounced ferroptosis in HCC,and knocking down the expression of TMEM39b signiﬁcantly decreased its ***,following the induction of ferroptosis in HCC by sorafenib,knocking down the expression of TMEM39b also decreased the severity of ferroptosis,enhancing HCC tolerance to *** conclusion,we propose that TMEM39b promotes tumor progression and resistance to sorafenib by inhibiting ferroptosis in HCC.

关键词： TMEM39b Sorafenib Ferroptosis Hepatocellular carcinoma

Effect of trigger system on experimental dispersion characteristics of active surface wave testing

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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 311-318页

作者： Lin Shibin Jeramy C.Ashlock Zhu liming qin Zexiang Li Bo Zhu Xingji Zhai Changhai State Key Laboratory of Precision Blasting Jianghan UniversityWuhan 430056China Hubei Key Laboratory of Blasting Engineering Jianghan UniversityWuhan 430056China Department of Civil Construction&Environmental EngineeringIowa State UniversityAmesIA 50010USA Wuhan Airport Road Development Co. Ltd.Wuhan 430065China School of Civil and Environmental Engineering Harbin Institute of TechnologyShenzhen 518055China Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education Harbin Institute of TechnologyHarbin 150090China Key Lab of Smart Prevention and Mitigation of Civil Engineering Disaster of the Ministry of Industry and Information Technology Harbin Institute of TechnologyHarbin 150090China

A trigger system is typically employed in active seismic testing to trigger and synchronize multichannel surface wave data *** effect of the trigger system on the dispersion image of surface waves is empirically known to be negligible,however,theoretical explanation regarding the effect of the trigger system is *** study systematically examines the theory for surface wave dispersion analysis and proves that the effect of the trigger system on a dispersion image is negligible via a solid theoretical ***,based on the new theoretical explanation,an alternative method that uses only the relative phase difference between sensors to extract dispersion characteristics with better conceptual clarity is *** active surface wave testing cases are considered to validate the theory and *** results indicate that(1)an accurate trigger system is not necessary for surface wave data acquisition,and(2)it is unnecessary to assume that the impact point is the generation point of the surface waves for the experimental dispersion analysis.

关键词： site investigation surface waves data acquisition dispersion

Composition Engineering Opens an Avenue Toward Efficient and Sustainable Nitrogen Fixation

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Energy & Environmental Materials 2024年第1期7卷 313-325页

作者： Xiaolin Wang liming Yang Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationWuhan 430074China Hubei Key Laboratory of Materials Chemistry and Service Failure Wuhan 430074China Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica Wuhan 430074China Hubei Engineering Research Center for Biomaterials and Medical Protective Materials Wuhan 430074China School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China

In this work,we open an avenue toward rational design of potential efficient catalysts for sustainable ammonia synthesis through composition engineering strategy by exploiting the synergistic effects among the active sites as exemplified by diatomic metals anchored graphdiyne via the combination of hierarchical high-throughput screening,first-principles calculations,and molecular dynamics *** 43 highly efficient catalysts feature ultralow onset potentials(|U_(onset)|≤0.40 V)with Rh-Hf and Rh-Ta showing negligible onset potentials of 0 and-0.04 V,*** high catalytic activities of Rh-Hf and Rh-Ta can be ascribed to the synergistic *** forming heteronuclears,the combinations of relatively weak(such as Rh)and relatively strong(such as Hf or Ta)components usually lead to the optimal strengths of adsorption Gibbs free energies of reaction *** origin can be ascribed to the mediate d-band centers of Rh-Hf and Rh-Ta,which lead to the optimal adsorption strengths of intermediates,thereby bringing the high catalytic *** work provides a new and general strategy toward the architecture of highly efficient catalysts not only for electrocatalytic nitrogen reduction reaction(eNRR)but also for other important *** expect that our work will boost both experimental and theoretical efforts in this direction.

关键词： composition engineering strategy diatomic catalysts electrocatalytic nitrogen reduction reaction first-principles calculations graphdiyne hierarchical high-throughput screening synergistic effects