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Hydrocarbon accumulation conditions and key exploration and development technologies for PL 19-3 oilfield

Petroleum Research 2019年第1期4卷 29-51页

作者： Yong'an Xue Yunhua Deng Deying Wang Haifeng Yang Dingyou Lv Kai Kang Tianjin Branch Company China National Offshore Oil Co.Ltd.Tianjin300452China Research Institure Co.ltd China National Offshore Oil Co.Ltd.Beijing100028China

The PL 19e3 Oilfield is the only super-large monolithic oilfield with oil and gas reserves up to 1×10^(9) t in the Bohai Bay Basin,and it has been successfully *** and development practices have provided abundant data for analyzing formation conditions of this super-large *** the basis of the exploration and development history,fundamental reservoir features,and with available geological,geophysical and test data,the hydrocarbon accumulation conditions and key exploration&development technologies of the PL 19e3 Oilfield were *** key conditions for forming the super-large Neogene oilfield include four ***,the oilfield is located at the high position of the uplift that contacts the brachy-axis of the multi-ridge slope in the biggest hydrocarbon-rich sag in the Bohai Bay Basin,thus it has sufficient hydrocarbon source and extremely superior hydrocarbon migration ***,the large-scale torsional anticlines which formed in the Neogene under the control of the Tanlu strike-slipping movement provide sufficient storage spaces for oil and gas ***,the“multiple sets of composite reservoir-caprock assemblages”developing in the special shallow-water delta further contributes greatly to the effective storage space for oil and gas ***,due to the coupling of the uplift and strike slip in the neotectonic period,extensive faulting activities constantly released the pressure while the late period massive hydrocarbon expulsion of the Bozhong took place at the same time,which assures the constant and intense charging of oil and *** super-large PL 19e3 Oilfield was controlled by the coupling effects of all those special geologic *** view of this oilfield's features(*** reformation caused by strike slip,and the special sedimentary environment of shallow-water delta),some key practical technologies for exploration and development have been *** technologies include:

关键词： PL 19e3 Hydrocarbon accumulation conditions Multiple composite reservoir-caprock assemblages Constant and intense charging of oil and gas during later period Gas cloud zone Exploration and development technology

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Friction moment analysis of space gyroscope bearing with ribbon cage under ultra-low oscillatory motion

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Chinese Journal of Aeronautics 2014年第5期27卷 1301-1311页

作者： Jiang Shaona Chen Xiaoyang Gu Jiaming Shen Xuejin Research Institute of Bearings Shanghai University Shanghai Tianan Bearing Co. Ltd

This paper presents the model of calculating the total friction moment of space gyroscope ball bearings which usually work under ultra-low oscillatory motion and are very sensitive to the friction moment. The aim is to know the proportion of the friction moment caused by each frictional source in the bearing＇s total friction moment, which is helpful to optimize the bearing design to deduce the friction moment. In the model, the cage dynamic equations considering six degree-of-freedom and the balls dynamic equations considering two degree-of-freedom were *** good trends with different loads between the measured friction moments and computational results prove that the model under constant rate was validated. The computational results show that when the speed was set at 5 r/min, the bearing＇s maximum total friction moment when oscillation occurred was obviously larger than that occurred at a constant rate. At the onset of each oscillatory motion, the proportion of the friction moment caused by cage in the bearing＇s total friction moment was very high, and it increased with the increasing speed. The analyses of different cage thicknesses and different clearances between cage pocket and ball show that smaller thickness and clearance were preferred.

关键词： Ball bearings Cage thicknesses Clearances Dynamic equations Friction moment Frictional sources Oscillatory motion

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A low power wide-band CMOS PLL frequency synthesizer for portable hybrid GNSS receiver

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Journal of Semiconductors 2010年第3期31卷 85-89页

作者：肖时茂于云丰马成炎叶甜春殷明 Institute of Microelectronics Chinese Academy of Sciences Hangzhou Zhongke Microelectronics Co ltd

The design consideration and implementation of a CMOS frequency synthesizer for the portable hybrid global navigation satellite system are presented. The large tuning range is achieved by tuning curve compensation using an improved VCO resonant tank, which reduces the power consumption and obtains better phase noise performance. The circuit is validated by simulations and fabricated in a standard 0.18 μm 1P6M CMOS process. Close-loop phase noise measured is lower than -95 dBc at 200 kHz offset while the measured ttming range is 21.5% from 1.47 to 1.83 GHz. The proposed synthesizer including source coupled logic prescaler consumes 6.2 mA current from 1.8 V supply. The whole silicon required is only 0.53 mm2.

关键词： CMOS GNSS dual-modulus voltage-controlled oscillator frequency synthesizer

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A dual-mode complex filter for GNSS receivers with frequency tuning

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Journal of Semiconductors 2009年第10期30卷 76-80页

作者：甘业兵马成炎袁国顺 Institute of Microelectronics Chinese Academy of Sciences Hangzhou Zhongke Microelectronics Co Ltd

A fifth/seventh order dual-mode OTA-C complex filter for global navigation satellite system receivers is implemented in a 0.18μm CMOS *** filter can be configured as the narrow mode of a 4.4 MHz bandwidth center at 4.1 MHz or the wide mode of a 22 MHz bandwidth center at 15.42 MHz.A fully differential OTA with source degeneration is used to provide sufficient ***,a ring CCO based frequency tuning scheme is proposed to reduce frequency *** measured results show that in narrow-band mode the image rejection ratio（IMRR）is 35 dB,the filter dissipates 0.8 mA from the 1.8 V power supply,and the out-of-band rejection is 50 dB at 6 MHz *** wide-band mode,IMRR is 28 dB and the filter dissipates 3.2 *** frequency tuning error is less than±2%.

关键词： complex filter OTA dual-mode frequency tuning CCO GNSS

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Unraveling the advances of trace doping engineering for potassium ion battery anodes via tomography

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Journal of Energy Chemistry 2021年第7期30卷 355-363页

作者： Zhenjiang Yu Ruhong Li Kedi Cai Yudong Yao Junjing Deng Shuaifeng Lou Mi Lu Qinmin Pan Geping Yin Zaixing Jiang Jiajun Wang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina Liaoning Engineering Technology Research Center of Supercapacitor Bohai UniversityJinzhou 121013LiaoningChina Advanced Photon source Argonne National LaboratoryLemontIL 60439USA Key Laboratory of Functional Materials and Applications of Fujian Province School of Materials Science and EngineeringXiamen University of TechnologyXiamen 361024FujianChina

Doping have been considered as a prominent strategy to stabilize crystal structure of battery materials during the insertion and removal of alkali *** instructive knowledge and experience acquired from doping strategies predominate in cathode materials,but doping principle in anodes remains ***,we demonstrate that trace element doping enables stable conversion-reaction and ensures structural integrity for potassium ion battery(PIB) *** a synergistic combination of X-ray tomography,structural probes,and charge reconfiguration,we encode the physical origins and structural evolution of electro-chemo-mechanical degradation in PIB *** the multiple ion transport pathways created by the orderly hierarchical pores from "surface to bulk" and the homogeneous charge distribution governed in doped nanodomains,the anisotropic expansion can be significantly relieved with trace isoelectronic element doping into the host lattice,maintaining particle mechanical *** work presents a close relationship between doping chemistry and mechanical reliability,projecting a new pathway to reengineering electrode materials for next-generation energy storage.

关键词： Trace doping Conversion-type electrode Structural evolution X-ray imaging Hierarchical integrity

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Reservoir forming conditions and key exploration technologies of Lingshui 17-2 giant gas field in deepwater area of Qiongdongnan Basin

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Petroleum Research 2019年第1期4卷 1-18页

作者： Yuhong Xie Gongcheng Zhang Zhipeng Sun Qingbo Zeng Zhao Zhao Shuai Guo China National Offshore Oil Co. Ltd.Beijing100028China Research Institue Co.ltd China National Offshore Oil Co.Ltd.Beijing100028China Research Institute of Zhanjiang Branch China National Offshore Oil Co.Ltd.Zhanjiang524057China

On September 15,2014,China National Offshore Oil Co.,ltd announced that a high production of oil and gas flow of 1.6106 m3/d was obtained in Well LS17-2-1 in deepwater area in northern South China Sea,which is the first great oil and gas discovery for self-run deepwater exploration in China sea areas,and a strategic breakthrough was made in natural gas exploration in deepwater area of Lingshui sag in Qiongdongnan *** the combined action of climax of international deepwater exploration,high oil prices,national demands of China,practical needs of exploration,breakthroughs in seismic exploration and testing technologies,innovations in geological cognition and breakthroughs in deepwater operation equipment,Lingshui 17-2 gas field is *** these factors,the innovation in reservoir forming geological cognition directly promotes the *** quality of seismic data in the early time is poor,so key reservoir forming conditions such as effective source rocks,high quality reservoirs and oil-gas migration pathways are unable to be ascertained;with support of new seismic acquisition and processing technology,some researches show that Lingshui sag is a successive large and deep sag with an area of 5000 km2 and the maximum thickness of Cenozoic stratum of 13 *** the Early Oligocene,the Lingshui sag was a semi-closed delta-estuarine environment,where the coalmeasure and marine mudstones in Lower Oligocene Yacheng Formation were *** Lingshui sag is a sag with high temperature,and the bottom temperature of source rocks in Yacheng Formation can exceed 250C,but the simulation experiment of hydrocarbon generation at high temperature indicates that the main part of this set of source rock is still in the gas-generation window,with resources of nearly 1 trillion cubic meters,so the Lingshui sag is a hydrocarbon-rich generation *** the Neogene,the axial canyon channel from the Thu Bon River in Vietnam passed through the Lingshui sag,and five stages

关键词： Deepwater oil and gas source rocks Lower limit of gas generation The central canyon Diapiric zone Migration pathway Lingshui sag Lingshui 17-2 giant gas field Qiongdongnan basin

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The TripleSat constellation:a new geospatial data service model

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Geo-Spatial Information Science 2017年第2期20卷 163-173页

作者： Qiang Wen Jianjun He Shengyong Guan Ting Chen Yin Hu Wenbin Wu Feng Liu Yuexia Qiao Suet Yheng Kok Samuel Yeong 21st Century Aerospace Technology Co. Ltd.BeijingChina 21st Century Aerospace Technology(Asia)Pte.ltd. Singapore

With the increase of different sensors,applications and customers,the demand from data providers and users is for a new geospatial data service model,which supports low cost,high dexterity,and which would provide a comprehensive *** on such requirements and demands,the 21AT TripleSat constellation terminal and data delivery and management system has been developed by a Beijing based high-tech enterprise,Twenty First Century Aerospace Technology Co.,ltd.(21AT).The company is the first commercial Earth observation satellite operator and service provider in *** new geospatial data service model allows the user to directly access multi-source satellite data,manage the data order,and carry out automatic massive data production and *** solution also implements safe and hierarchical user management,statistical data analysis,and automatic information *** addition,a mobile application is also available for users to easily access system *** new geospatial solution has already been successfully applied and installed in many customer sites in China,and is now available globally for international clients interested in fast geospatial *** enables the success of customers’operational *** providing TripleSat Constellation images,the multi-source data access system also allows the users to access other satellite data sources,based on customized *** paper describes and discusses this new geospatial data service model.

关键词： Geospatial data service model 21AT TripleSat constellation geospatial instant service system

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Effect on Inner Electrical Field Distributions of EHV Converter Transformer by Insulation Material Characteristics

Effect on Inner Electrical Field Distributions of EHV Conver...

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2012 China Functional Materials Technology and Industry Forum

作者： Ping Zhang Xin-peng Nie Jun-ping Meng You-hua Wang Hebei University of Technology Control Science and Engineering department Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability Gamesa Wind(Tianjin) Cor. Ltd. Institute of Power source and Ecomaterials Science Hebei University of Technology

In order to analyze inner electrical field distributions of EHV converter transformer’s windings end at valve side,a simulation circuit model of oil-paper combination insulations is established in this *** ANSYS10.0 finite element method(FEM) is used to calculate the electrical field distributions under four different excited volatges,containing DC voltage,AC voltage,superimposed DC-AC voltage and polarity reversal(PR) voltage *** results show that when only under DC voltage,resistive electrical field distributions highly convergen on insulating cardboard whose resistivity is correspondingly *** only under AC voltage,capactive electrical filed distributions highly centeralize on insulating oil whose dielectic capacity is correspondingly *** under superimposed DC-AC voltage,its unformity lies in DC voltage or AC voltage function *** under transient polarity reversal volatge,its distrbutions present like tooth and electrical strength of insulating oil is bigger than that of insulating paper.

关键词： Insulation Charactersitics HVDC power transmission Converter transformer Oil-paper combination insulation model Polarity reversal voltage

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Integrated application of gravity,aeromagnetic,and electromagnetic methods in exploring the Ganzi geothermal field,Sichuan Province,China

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Energy Geoscience 2023年第4期4卷 119-127页

作者： Hong Li Sinopec Geophysical Research Institute Co. LtdChina

The Ganzi geothermal field is located in the Songpan-Ganzi orogenic belt in Sichuan *** hot springs are exposed along the Yalahe valley in Ganzi geothermal field,which is a favorable area for hightemperature geothermal resource ***,the geological model of heat exchange,the regional structure controlling hydrothermal convection and the development model of geothermal reservoirs are still ***,further studies are necessary to meet the geothermal exploration requirements in the middle and deep strata of this geothermal *** this study,a geological model of the geothermal system of Ganzi geothermal field is *** are convinced that there exists a hydrothermal convection system in the Ganzi geothermal field,the heat transfer of which is accomplished through deep-rooted major ***,the identification of deep-rooted major faults and the description of geothermal reservoirs are the research objects of the integrated geophysical *** main factors controlling the geothermal reservoirs in the deep-rooted Xianshuihe major fault and Yalahe fault zones are analyzed by using gravity,aeromagnetic,and electromagnetic methods and *** analysis results of regional gravity and aeromagnetic anomalies show that the Xianshuihe major fault has produced obvious gravity and aeromagnetic anomalies on the surface,and thus the position and strike of this fault can be accurately predicted by inversion of the aeromagnetic *** reservoirs show low-resistivity anomalies in the electromagnetic *** inversion results of the controlled source audio-frequency magnetotelluric(CSAMT)data show that geothermal reservoirs are mainly developed along the Yalahe valley,and the west side of the valley is more favorable for geothermal *** study is of guiding significance to the efficient exploitation and utilization of the Ganzi geothermal field.

关键词： Ganzi geothermal field Geothermal reservoir Geothermal resource Gravity-aeromagnetic-electromagnetic anomaly

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Differences in the Tectonic Evolution of Basins in the CentralSouthern South China Sea and their Hydrocarbon Accumulation Conditions

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Acta Geologica Sinica(English Edition) 2021年第1期95卷 30-40页

作者： TANG Wu ZHAO Zhigang SONG Shuang WANG Yibo XIE Xiaojun LIU Shixiang CNOOC Research Institute Co. Ltd.Beijing 100028China

To reveal the causes of differences in the hydrocarbon accumulation in continental marginal basins in the centralsouthern South China Sea,we used gravity-magnetic,seismic,drilling,and outcrop data to investigate the tectonic histories of the basins and explore how these tectonic events controlled the hydrocarbon accumulation conditions in these *** the subduction of the Cenozoic proto-South China Sea and the expansion of the new South China Sea,the continental margin basins in the central-southern South China Sea could be classified as one of three types of epicontinental basins:southern extensional-foreland basins,western extensional-strike slip basins,and central extensional-drift *** these basins have different tectonic and sedimentary histories,they also differ in their accumulated hydrocarbon *** the Cenozoic,the basin groups in the southern South China Sea generally progressed through three stages:faulting and subsidence from the late Eocene to the early Miocene,inversion and uplift in the middle Miocene,and subsidence since the late *** source rocks with marine-continental transitional facies dominated byⅡ-Ⅲkerogen largely developed in extremely thick Miocene sedimentary series with the filling characteristics being mainly deep-water deposits in the early stage and shallow water deposits in the late *** well-developed sandstone and carbonate reservoirs,this stratum has a strong hydrocarbon generation *** the Cenozoic,the basin groups in the western South China Sea also progressed through the three developmental stages discussed *** source rocks with lacustrine facies,marine-continental transitional facies,and terrigenous marine facies dominated byⅡ2-Ⅲkerogen largely developed in the relatively thick stratum with the filling characteristics being mainly lacustrine deposits in the early stage and marine deposits in the late *** a reservoir comprised of self-generated a

关键词： tectonic evolution hydrocarbon accumulation continental margin central-southern South China Sea proto-South China Sea

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