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Science china Earth Sciences 2004年第10期47卷 886-895页

作者： TANG Liangjie1,2, JIA Chengzao3, PI Xuejun4, CHEN Suping1,2, WANG Zhiyu5, XIE Huiwen4 1. Key Laboratory for Hydrocarbon Accumulation of Education Ministry, beijing 102249, china 2. Basin & Reservoir Research Center, university of petroleum, beijing 102249, china 3. Petrochina Company Limited, beijing 100011, china 4. Tarim Oilfield Company, Petrochina Company Ltd., Kurle 841000, china 5. Department of Geology, university of petroleum, beijing 102249, china Key Laboratory for Hydrocarbon Accumulation of Education Ministry Beijing China Basin & Reservoir Research Center University of Petroleum Beijing China Petrochina Company Limited Beijing China Tarim Oilfield Company PetroChina Company Ltd. Kurle China Department of Geology University of Petroleum Beijing China

The salt beds of Lower Tertiary developed in the mid-segment of Kuqa foreland fold belt, northern Tarim basin. They considerably controlled structural deformation of the belt. Ac- cording to the field observation, seismic profile interpretation and drilling data, three different structural styles of supra-salt, intra-salt and sub-salt occurred in the Kuqa foreland fold belt. Su- pra-salt structural styles mainly include thrust faults and fault-related sags. Intra-slat structural styles essentially are salt-pillows, intra-salt faults and folds, and salt weld structures. Sub-salt structural styles mainly consist of imbricated thrust faults, duplex structures, pop-up and fault-related folds. It is indicated that great differences exist among supra-salt, intra-salt and sub-salt structures of Kuqa foreland fold belt. The salt-related structures were formed in the same structural stress field. The dynamic mechanism of the salt-related structures is mainly associated with gravitation, compression and plastic flow of salt beds.

关键词： salt-related structural style, supra-salt structure, intra-salt structure, sub-salt structure, Kuga foreland fold belt.

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Thin bed responses and correction methods for cased hole density logging

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petroleum Science 2008年第4期5卷 322-325页

作者： Wu Wensheng Zhang Yuling State Key Laboratory of petroleum Resource and Prospecting China University of Petroleum Beijing 102249 China china National Logging Corporation CNPC Beijing 100101 China

The study of the thin bed responses and correction methods in cased hole density logging can provide a theoretical basis for research to improve data processing methods. By using the Monte Carlo program MCNP, the change of detector count from thin beds with the vertical depth was calculated at different casing thicknesses. The calculation showed that with the low density thin bed moving upward, detector count first increased to a maximum then decreased. The responses of a thin bed with a high density were opposite to those of a thin bed with a low density. The change curve was symmetrical, and the maximums or minimums appeared at the midpoint between the detector and source. Besides, detector count increased with increasing thin bed thickness. At a specific thin bed thickness, further increase of thin bed thickness resulted in a slow increase of detector count then the count rate leveled off. In actual logging, the influence of adjacent formations on density log measurements can be ignored. Finally, based on numerical simulation correction methods for the dual influence of casing and thin beds are discussed.

关键词： Density logging in cased hole thin bed response casing MCNP program correcting

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Investigation of effects of clay content on F-Ф relationship by Lattice gas automation using digital rock model

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petroleum Science 2011年第2期8卷 170-176页

作者： Yue Wenzheng Tao GUo Chai Xiyuan Jiang Hongxiu Mu Hongwu State Key Laboratory of petroleum Resource and Prospecting China University of Petroleum Beijing 102249 China Key Laboratory of Earth Prospecting and Information Technology China University of Petroleum Beijing 102249 China CNPC Key Laboratory of Well Logging China University of Petroleum B eijing 102249 China Bohai Drilling Engineering Company LTD Logging Company Tianjin 300280 China

The Lattice Gas Automation （LGA） method, which is improved by introducing a reflection coefficient for the border between phases to show its effect on current path, is used in this paper to simulate the current flow in digital rock for investigating the effects of clay content and clay distribution types on the relationship between formation factor（F） and rock porosity（φ）. The digital rock model is constructed by simulating a natural deposit of matrix particles with different shapes and radius. Based on the simulation results, it was found that both dispersed clay and laminated clay can lead to a non-Archie relationship of F-φ. The non-Archie effect of laminated clay on the F-φ relationship was more significant than that of dispersed clay. Moreover, a realistic model is developed in this work for quantitatively describing the effect of clay content （Denoted as Vsh） on parameters a and m. These study results have further demonstrated the validity of LGA in study of electrical transport properties at a pore scale.

关键词： Formation factor non-Archie Lattice gas automation porosity clay content claydistribution

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Formation mechanisms of heavy oils in the Liaohe Western Depression,Bohai Gulf Basin

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Science china Earth Sciences 2008年第S2期51卷 156-169页

作者： LI SuMei1,2,PANG XiongQi1,2,LIU KeYu3,GAO XianZhi1,2,LI XiaoGuang4,CHEN ZhenYan4 & LIU BaoHong41 State Key Laboratory of petroleum Resource and Prospecting,china university of Petroleam,beijing 102249,china 2 Basin and Reservoir Research Center,china university of petroleum,beijing 102249,china 3 CSIRO petroleum,P.O. Box 1130,Bentley WA 6102,Australia 4 Liaohe Oilfield Co. Ltd,Petrochina,Panjin 124010,china State Key Laboratory of petroleum Resource and Prospecting China University of Petroleam Beijing China Basin and Reservoir Research Center China University of Petroleum Beijing China CSIRO petroleum Bentley Australia Liaohe Oilfield Co. Ltd PetroChina Panjin China

The Liaohe Oilfield in the Liaohe Western Depression of the Bohai Gulf Basin is the third-largest oil producing province and the largest heavy oil producing oilfield in china. A total of 65 oil samples,35 rock samples and 36 reservoir sandstone samples were collected and analyzed utilizing conventional geochemical and biogeochemical approaches to unravel the mechanisms of the formation of the heavy oils. Investigation of the oils with the lowest maturity compared with the oils in the Gaosheng and Niuxintuo oilfields indicates no apparent relation between the maturity and physical properties of the heavy oils. It is suggested that the heavy oil with primary origin is not likely the main mechanism re-sponsible for the majority of the heavy oils in the Liaohe Western Slope. The absence and/or depletion of n-alkanes etc.,with relatively low molecular weight and the occurrence of 25-norhopane series in the heavy oils as well as the relatively high acidity of the oils all suggest that the majority of the heavy oils once experienced secondary alteration. The fingerprints of the total scanning fluorescence (TSF) of the inner adsorbed hydrocarbons on the reservoir grains and the included hydrocarbons in fluid inclusions are similar to that of the normal oils in the area but are different from the outer adsorbed and reser-voired free oils at present,further indicating that most of the heavy oils are secondary in origin. Analyses of bacteria (microbes) in 7 oil samples indicate that anaerobic and hyperthermophilic Ar-chaeoglobus sp. are the dominant microbes relevant to oil biodegradation,which coincides with the shallow commercial gas reservoirs containing anaerobic bacteria derived gas in the Gaosheng and Leijia teotonic belts. The biodegradation most likely occurs at the water/oil interface,where the forma-tion water is essential for microbe removal and nutrient transportation. We think that biodegradation,water washing and oxidization are interrelated and are the main mech

关键词： heavy oil Liaohe Western Depression biodegradation water washing formation mechanism

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Alkylation mechanism of benzene with 1-dodecene catalyzed by Et_3NHCl-AlCl_3

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Science china Chemistry 2010年第5期53卷 1101-1106页

作者： QI GuoPeng 1,JIANG Feng 1,SUN XueWen 2 & ZHAO SuoQi 2 1School of Chemical Engineering,Tianjin university,Tianjin 300072,china 2State key Laboratory of Heavy Oil Processing,petroleum university of china,beijing 102249,china School of Chemical Engineering Tianjin University Tianjin China State key Laboratory of Heavy Oil Processing Petroleum University of China Beijing China

The isotope exchange method was employed to investigate the catalytic mechanism of ionic liquid in alkylation of benzenes with *** is proposed that alkylation was induced by the Lewis acid AlCl3 which attracted π electrons of 1-dodecene to shift toward 1-carbon,thus forming a carbonium *** carbonium ion further reacted with benzenes to form a *** to unstabilit of the complex,a deuterated ring proton was transferred into an electronegative 1-carbon of the side chain to substitute for the AlCl3,accordingly 2-phenyldodecane was generated.

关键词： ionic liquid alkylation mechanism deuteriobenzene isotope exchange method

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Accelerating Oil and Gas Exploration in Western china by Studies of Formations of Hydrocarbon Accumulations in Superimposed Basins—A Preface

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Acta Geologica Sinica(English Edition) 2010年第5期 5-6页

作者： PANG Xiongqi~(1,2) 1 State Key Laboratory of petroleum Resource and Prospecting,china university of petroleum,beijing 102249 2 Basin and Reservoir Research Center,china university of petroleum,beijing 102249

The superimposed basins in the western region of china are a hot research topic for earth scientists home and abroad for their vast area and rich oil and gas *** complex geological conditions and resultant great exploration difficulties have received much attention of the *** issue presents the advances of several scholars in their long-term research on the mechanisms of oil and gas accumulation and the patterns of oil and gas *** studies are part of the National 973 Project entitled "Mechanism of Oil and Gas Accumulation and

关键词： A Preface Accelerating Oil and Gas Exploration in Western china by Studies of Formations of Hydrocarbon Accumulations in Superimposed Basins

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Biogas recovery from microwave heated sludge by anaerobic digestion

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Science china(Technological Sciences) 2010年第1期53卷 144-149页

作者： QIAO Wei1,WANG Wei2,ZHU CuiPing3 & ZHANG ZhongZhi1 1 College of Chemical Science and Engineering,china university of petroleum,beijing 102249,china 2 Department of Environmental Science and Engineering,Tsinghua university,beijing 10084,china 3 J & K china Cleaning Energy Technology Co.Ltd.,beijing 100085,china College of Chemical Science and Engineering China University of Petroleum Beijing China Department of Environmental Science and Engineering Tsinghua University Beijing China J & K china Cleaning Energy Technology Co. Ltd. Beijing China

Biogas generated from sewage sludge,livestock waste,and food waste by anaerobic digestion is a valuable renewable energy ***,conventional anaerobic digestion is not an efficient process.A long hydraulic retention time and low biogas recovery rate hinder the applications of those *** effective pretreatment method to destroy sludge microbial cells has been one of the major concerns regarding improvement of the biogas *** article focuses on the effects of microwave heating on sludge anaerobic *** suspended solid(VSS) and chemical organic demand solubilization of heated sludge were *** heating was found to be a rapid and efficient process for releasing organic substrates from *** increase of organic dissolution ratio was not obvious when holding time was over 5 min with microwave *** effect of the VSS solubilization was primarily dependent on heating *** highest value of VSS dissolving ratio,36.4%,was obtained at 170°C for 30 *** COD dissolving ratio was about 25% at 170°*** organic carbon of treated sludge liquor was 1.98 and 2.73 g/L at 150°C and 170°C for 5 min,respectively.A biochemical methane potential(BMP) test of excess sludge and a mixture of primary and excess sludge demonstrated an increase in biogas *** total biogas from microwave treated mixture sludge increased by 12.9% to 20.2% over control after 30 days of *** production was 11.1% to 25.9% higher for excess sludge than for untreated *** VS removal ratios of mixture sludge and excess sludge were 12% and 11% higher,respectively,compared to the untreated sludge.

关键词： biogas recovery microwave heating sludge anaerobic digestion

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Advances in studies of the tribological behavior of molecular deposition films

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petroleum Science 2008年第4期5卷 379-387页

作者： Xiao Yuqi Zhang Siwei Wang Deguo Gao Manglai School of Mechanical and Electronic Engineering China University of Petroleum Beijing 102249 China School of Chemical Science and Engineering China University of Petroleum Beijing 102249 China

An overview of the advances in studies on tribology of molecular deposition （MD） films is presented here to summarize the studies of nanofrictional properties, adhesion, wear and mechanical behavior, as well as the molecular dynamics simulation of nanotribological properties of the film in the last decade. Some key research topics which need to be investigate further are addressed.

关键词： Molecular deposition (MD) film tribological behavior adhesive property wear characteristics mechanical behavior

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MATHEMATICAL MODEL OF THE MICROBIAL FLOODING

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Journal of Hydrodynamics 2003年第4期15卷 104-108页

作者： Lei Guang-lun, Zhang Zhong-zhi, Chen Yue-ming Faculty of Chemical Engineering, university of petroleum, beijing 102249, china Faculty of Chem. Eng. Univ. of Petroleum Beijing 102249 China

On the basis of growth kinetics of microorganism and the principle ofmaterial balance, equations were derived to describe microbial growth, nutrient consumption,metabolites production and their transport in formation. The changes in porosity, permeability, oilviscosity and capillary force were also described as the main facturs of microbial flooding. Forreservoirs with black oil properties, three-dimensional three-phase mathematical models with thecosidara-tion of multi-microbial components were established to depict microbial flooding oil. Withthis model, calculated results are in good agreement with experimental data.

关键词： microbial flooding enhance oil recovery mathematical model

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The distribution rule and seepage effect of the fractures in the ultra-low permeability sandstone reservoir in east Gansu Province,Ordos Basin

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Science china Earth Sciences 2008年第S2期51卷 44-52页

作者： ZENG LianBo1,GAO ChunYu2,QI JiaFu1,WANG YongKang2,LI Liang2 & QU XueFeng2 1 State Key Laboratory of petroleum Resource and Prospecting,china university of petroleum,beijing 102249,china 2 Changqing Oilfield Branch,Petrochina,Xi’an 163517,china State Key Laboratory of petroleum Resource and Prospecting China University of Petroleum Beijing China Changqing Oilfield Branch PetroChina Xi’an China

To study the impact of the fractures on development in the ultra-low permeability sandstone reservoir of the Yangchang Formation of the Upper Triassic in the Ordos Basin,data on outcrops,cores,slices,well logging and experiments are utilized to analyze the cause of the formation of the fractures,their distribution rules and the control factors and discuss the seepage flow effect of the fractures. In the studied area developed chiefly high-angle tectonic fractures and horizontal bedding fractures,inter-granular fractures and grain boundary fractures as well. Grain boundary fractures and intragranular fractures serve as vital channels linking intragranular pores and intergranular solution pores in the reservoir matrix,thus providing a good connectivity between the pores in the ultra-low perme-ability sandstone reservoir. The formation of fractures and their distribution are influenced by such external and internal factors as the palaeo-tectonic stress field,the reservoir lithological character,the thickness of the rock layer and the anisotropy of a layer. The present-day stress field influences the preservative state of fractures and their seepage flow effect. Under the tec-tonic effect of both the Yanshan and Himalayan periods,in this region four sets of fractures are distributed,respectively assuming the NE-SW,NW-SE,nearly E-W and nearly S-N orientations,but,due to the effect of the rock anisotropy of the rock formation,in some part of it two groups of nearly orthogonal fractures are chiefly distributed. Under the effect of the present-day stress field,the fractures that assume the NE-SW direction have a good connectivity,big apertures,a high permeability and a minimum starting pressure,all of which are main advantages of the seepage fractures in this region. With the development of oilfields,the permeability of the fractures of dif-ferent directions will have a dynamic change.

关键词： fracture genetic type distribution characteristic seepage flow effect ultra-low permeability sandstone reservoir Ordos Basin

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