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Hydrocarbon accumulation in deep water areas of Angola in West Africa

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Petroleum Research 2019年第3期4卷 268-275页

作者： yanqing huang Lei Zheng SINOPEC Exploration&Production Research Institute Beijing100083China

Through comprehensive analysis of source rocks and hydrocarbon geochemical data of several offshore blocks in Angola,two sets of source rocks in the Cretaceous Iabe Formation and Lower Oligocene Malembo Formation are developed in the suprasalt structures in deep water *** source rocks in the Cretaceous Iabe Formation is dominated by Type I kerogen,while the source rocks in the Lower Oligocene Malembo Formation is dominated by Type IIeIII kerogen which mainly generate *** the extensional zone,the source rocks in the Malembo Formation are mature and the source rocks in the Iabe Formation are post-matured;this zone undergo multi-stage filling,and the Oligocene paleoreservoirs experience high-temperature pyrolysis to form gas reservoirs;the Upper Miocene reservoirs undergo biodegradation due to poor storage *** the transitional zone,oil and gas in the drape anticline area are mainly from the Iabe Formation,and it mix with a small amount of oil and gas from the Malembo Formation in the later *** the compression zone,the crude oil is from the Iabe Formation at the mature stage,and contains a small amount of dissolved gas generated by thermal degradation.

关键词： Angola Lower CongoeCongo fan basin Source rocks Hydrocarbon geochemistry Accumulation model

Hypoxia inducible factor(HIF) in the tumor microenvironment：friend or foe？

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Science China(Life Sciences) 2017年第10期60卷 1114-1124页

作者： yanqing huang Daniel Lin Cullen M.Taniguchi The University of Texas at MD Anderson Department of Experimental Radiation Oncology MD Anderson Cancer Center Houston TX 77030 USA The University of Texas at MD Anderson Division of Radiation Oncology MD Anderson Cancer Center Houston TX 77030 USA

Hypoxia acts as an important regulator of physiological and pathological processes. Hypoxia inducible factors(HIFs) are the central players involved in the cellular adaptation to hypoxia and are regulated by oxygen sensing EGLN prolyl *** affects many aspects of cellular growth through both redox effects and through the stabilization of HIFs. The HIF isoforms likely have differential effects on tumor growth via alteration of metabolism, growth, and self-renewal and are likely highly context-dependent. In some tumors such as renal cell carcinoma, the EGLN/HIF axis appears to drive tumorigenesis,while in many others HIF1 and HIF2 may actually have a tumor suppressive role. An emerging role of HIF biology is its effects on the tumor microenvironment. The EGLN/HIF axis plays a key role in regulating the function of the various components of the tumor microenvironment, which include cancer-associated fibroblasts, endothelial cells, immune cells, and the extracellular matrix(ECM). Here, we discuss hypoxia and the diverse roles of HIFs in the setting of tumorigenesis and the maintenance of the tumor microenvironment as well as possible future directions of the field.

关键词： hypoxia HIF tumor microenvironment cellular homeostasis mouse model

Morganella morganii as a Causative Agent of Disease in the Chinese Giant Salamander (Andrias davidianus)

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Asian Herpetological Research 2013年第3期4卷 197-201页

作者： Li WANG Yong WEI yanqing huang Key Laboratory of Animal Genetics and Breeding of State Ethnic Affairs Commission and Ministry of Education College of Life Science and TechnologySouthwest University for Nationalities Sichuan Academy of Animal Sciences East China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences

Morganella morganii strain 602-1 was isolated from a sick Chinese giant salamander （Andrias davidianus）. The strain 602-1 was identified through its physiological and biochemical properties and 16S rDNA gene amplification and analyses. Pathogenicity was proven by experimental animal infection, and histopathological examination. The results showed that the amplified 16S rDNA sequence of strain 602-1 was 1455 bp, and showed 99% identity with M. morganii. In the host infection experiment, the mortality of Chinese giant salamanders was about 70%. Pathological changes occurred in the spleen, heart, liver, kidney and intestine. This study will help the prevention, understanding and cure for M. morganii infections in amphibians.

关键词： Morganella morganii identification pathogenicity Chinese giant salamander

Distribution prediction of the glutenite in Member 3 of Triassic Xujiahe Formation in Yuanba area,northern Sichuan Basin

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Petroleum Research 2022年第1期7卷 123-130页

作者： yanqing huang Tian Lin Ai Wang Zeyu Nan Sinopec Petroleum Exploration and Development Research Institute Beijing100083China

Although the Triassic Xujiahe Formation in Yuanba area of northern Sichuan has a large amount of resources,the proportion of proved reserves to the amount of resources is *** of most of the pilot production wells is high at the initial stage,but it declines rapidly,mainly due to tight rock properties and strong heterogeneity of Xujiahe ***,it is important to investigate the distribution of high-quality *** Member 3 of Xujiahe Formation develops sandstone interbedded with mudstone,and its lateral thickness of different sandstone groups varies greatly,so it is a challenge to identify appropriate time windows for seismic attribute analysis,thus,so the prediction effect of the glutenite in the Member 3 of Xujiahe *** this study,through analysis of core data and logging facies,single-well sedimentary microfacies subdivision is carried ***-well lithological interpretation is also studied with application of lithological identification ***,lithological associations and its seismic responses at the top and bottom interfaces of each sandstone group in the Member 3 of Xujiahe Formation are well investigated,The lithological association with the glutenite above and the mudstone below the stratigraphic interface respectively,corresponds to a trough in seismic profiles;in this case,when extracting the seismic attributes of sandstone groups above the stratigraphic interface,only the difference of between drilling horizons and seismic horizons needs to be *** lithological association with the mudstone above and glutenite below the stratigraphic interface respectively,corresponds to a peak in seismic profiles;in this case,when extracting the seismic attributes of sandstone groups above the stratigraphic interface,influence of which should be eliminated;thus,a method of time window determination for seismic attribute extraction is *** amplitude,frequency,and phase attributes,the total peak energy ha

关键词： Braided river delta Time window Seismic attribute Glutenite Xujiahe formation Sichuan basin

Coupling outdoor air quality with thermal comfort in the presence of street trees:a pilot investigation in Shenyang,Northeast China

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Journal of Forestry Research 2023年第3期34卷 831-839页

作者： Chunping Miao Pingping Li yanqing huang Yuxuan Sun Wei Chen Shuai Yu CAS Key Laboratory of Forest Ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110016People’s Republic of China Shenyang Arboretum Chinese Academy of SciencesShenyang 110016People’s Republic of China Tanghekou Middle School Beijing 101400People’s Republic of China

Together,the heat island eff ect and air pollution pose a threat to human health and well-being in urban ***-based solutions such as planting trees are a mitigation strategy to improve outdoor temperatures(thermal comfort)and enhance air quality in urban *** this study,outdoor thermal comfort,and particulate matter levels were compared between treeless and treed areas to provide a better understanding of how street trees improve thermal comfort and air *** trees decreased the physiological equivalent temperature from 46.3 to 44.2℃in summer but increased it from 36.4 to 37.5℃in *** temperature and relative humidity contributed more in summer while wind speed contributed more in *** matter concentrations were negatively correlated with physiological equivalent temperature in summer but not in *** presence of trees decreased concentrations of fi ne particulate matter in hot summer conditions but increased in hot autumn *** presence of trees increased coarse particulate matter in very hot summer conditions in summer and in hot autumn ***,the layout of trees in urban street canyons should consider the trade-off between outdoor thermal comfort and air quality improvement.

关键词： Air pollution Particulate matter(PM) Physiological equivalent temperature(PET) Built environment Urban design

Biomass accumulation and nutrient uptake of 16 riparian woody plant species in Northeast China

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Journal of Forestry Research 2014年第4期25卷 773-778页

作者： Shuai Yu Wei Chen Xingyuan He Zhouli Liu yanqing huang State Key Laboratory of Forest and Soil Ecology Institute of Applied Ecology Chinese Academy of Sciences University of Chinese Academy of Sciences

Our research focused on eutrophication control and species screening for riparian zone vegetation restoration in the upstream reach of the Hun River. We studied 16 hardwood plant species to investigate nutrient concentrations and nitrogen and phosphorus accumulations. After about 120 days of growth in pots, these 16 species varied in dry matter biomass, ranging from 15.13 to 637.16 g. Total nitrogen （TN） and total phosphorus （TP） concentrations and distribution in roots, stems and foliage differed both within and between tested species. Mean TN and TP accumulation ranged from 0.167 to 14.730 g per plant and from 0.016 to 1.20 g, respectively. All 16 species, but especially Lespedeza bicolor, Robinia pseudoacacia and Sorbaria sorbifolia had strong potential to remove TN and TP from soil and could be widely utilized for the restora- tion of destroyed riparian zones in northeast China.

关键词： Nitrogen phosphorous ecological restoration foliage

Types and genesis of sweet spots in the tight sandstone gas reservoirs:Insights from the Xujiahe Formation,northern Sichuan Basin,China

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Energy Geoscience 2022年第3期3卷 270-281页

作者： yanqing huang Ai Wang Kaihua Xiao Tian Lin Wujun Jin Petroleum Exploration and Production Research Institute SINOPECBeijing 100083China

Through comprehensively applying geological and geophysical data,as well as core and thin section observation,the characteristics of reservoirs and fractures in the second member of the Xujiahe Formation(hereinafter referred to as Xu2 Member)in the Yuanba area,northern Sichuan Basin,were *** with the analysis of the main controlling factors of production capacity,the types and characteristics of the sweet spots in the tight sandstone gas reservoir were *** evaluation standards and geological models of the sweet spots were *** results are as follows:(1)There are bedding-parallel fracture-,fault-induced fracture-,and pore-dominated sweet spots in the tight sandstone gas reservoirs of the Xu2 Member.(2)The bedding parallel fracture-dominated sweet spots have developed in quartz sandstones with well-developed horizontal fractures and *** are characterized by high permeability and high gas output during production *** kind of sweet spots is thin and shows a limited *** logging responses show extremely low gamma-ray(GR)values and medium-high AC ***,the bedding parallel fracture-dominated sweet spots can be mapped using seismic methods.(3)The fault-induced fracture-dominated sweet spots have welldeveloped medium-and high-angle shear *** logging responses show an increase in peaks of AC values and total hydrocarbon content and a decrease in ***,the areas with welldeveloped fault-induced fracture-dominated sweet spots can be effectively mapped using the properties such as seismic entropy and maximum likelihood.(4)The pore-dominated sweet spots are developed in medium-grained feldspathic litharenites with good reservoir *** are thick and widely distributed.(5)These three types of sweet spots are mainly determined by sedimentation,diagenesis,and *** bedding parallel fracture-dominated sweet spots are distributed in beachbar quartz sandsto

关键词： Sweet spot Evaluation standard Tight sandstone gas reservoirs Xujiahe Formation Yuanba area Northeastern Sichuan Basin

Effects of Climate Warming on Phenological Characteristics of Urban Forest in Shenyang City,China

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Chinese Geographical Science 2016年第1期26卷 1-9页

作者： HE Xingyuan XU Sheng XU Wenduo CHEN Wei huang yanqing WEN Hua State Key Laboratory of Forest and Soil Ecology Institute of Applied EcologyChinese Academy of Sciences Northeast Institute of Geography and Agroecology Chinese Academy of Sciences

Change in plant phenology is one of the most sensitive ecological responses to climate warming. Little information is known about the effects of climate warming on phenology of urban tree species in the northern forest of China. In this study, we investigated the phenological characteristics of the main tree species in the urban forest of Shengyang City in China and the correlation between phenology and atmospheric temperature from the discontinuous data during past 42 years over three time periods(from 1962 to 1965, 1977 to 1978, and 2000 to 2005). The results showed that the annual average temperature in Shenyang City showed an increasing trend and increased by 0.96℃ from 1962 to 2005 due to climate warming. The germination phenology of the urban trees was negatively correlated with the temperature in winter and early spring. The leafing phenology was mainly influenced by the temperature in spring before leafing. Influenced by climate warming, the germination, leafing, and flowering phenologies of this urban forest in 2005 were 14, 13, and 10 days earlier than those in 1962, respectively. We inferred that further warming in winter might prolong the growing season of urban trees in the northern forest of China.

关键词： global climate change global warming plant phenology urban forest Shengyang City

Analysis of lithofacies and evaluation of effective reservoirs of member 2 of Xujiahe Formation in the Xinchang area in Western Sichuan

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Petroleum Research 2020年第3期5卷 244-253页

作者： yanqing huang Zhongqun Liu Pengwei Li Junlong Liu Changzhen Liao Shilin Xu Sinopec Petroleum Exploration and Development Research Institute Beijing100083China

In the Xinchang area in western Sichuan Basin,a total of 121.12 billion cubic meters of proved reserves of natural gas are discovered in Member 2 of Xujiahe Formation,but only 7.739 billion cubic meters of proved reserves of natural gas are *** main reason is that sandstones in Member 2 of Xujiahe Formation in the Xinchang area are generally tight,with strong heterogeneity,only intervals with relatively good physical properties have a certain production capacity;therefore,it is very necessary and important to evaluate effective reservoirs in Member 2 of Xujiahe *** analysis of cores,with consideration of color,sedimentary texture and grain size,lithofacies of Member 2 of Xujiahe Formation in the Xinchang area can be divided into 12 *** to data of physical properties and thin section analysis,it can be concluded that the favorable lithofacies in the upper submember of Member 2 of Xujiahe Formation are the massive medium-coarse sandstone,the medium-coarse sandstone with cross bedding,and the medium-coarse sandstone with carbonaceous *** the basis of electrical characteristics,well-logging interpretation standards for favorable lithofacies are established,in addition,favorable lithofacies and effective reservoir in the Xinchang area are determined,and distribution of favorable lithofacies(effective reservoir)is identified,which lay a solid foundation for next deployment of appraisal well and development of effective reserves.

关键词： Medium-coarse sandstone Lithofacies Effective reservoir Member 2 of xujiahe formation Xinchang area Sichuan