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    20 August 1996, Volume 18 Issue 3
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    石油地质勘探
    Characteristics of Deposition and Sequence Stratigraphy of Reservoir Interval in Sinian Dengying Formation in Zyang and Its Neighbouring Area
    Wang Xingzhi;Huang Jixiang;Hou Fanghao;Liu Zhongxuan;Lu Zhonggang;Xia Shaowen
    1996, 18(3):  1-9.  DOI: 10.3863/j.issn.1000-2634.1996.03.001
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    The reservoir interval of Dengying Fomation in Ziyang area is a dolostone sediment on shallow platform doninantly acted upon by waves.The meter and submeter sedimentary circles in the formation composed of 17 types of micro-lithic facties and 5 kinds of facies sequence are obvious.The reservoir interval consists of 3 uncomplete sequences,with high stand sytem realm as the main body of the sequences,and sequence boundaries being Type I and TypeⅡ.The sedimentary and sequence characteristics are influenced by sea-level
    fluctuation,tectonic subsidence and sedimentary rate of carbonate.
    Study of Fault confining of the early Triassic period in West Sichuan Depression Areas
    Liu Wen-bi ZhouWen Li De-fa
    1996, 18(3):  10-17.  DOI: 10.3863/j.issn.1000-2634.1996.03.002
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    This paper determines the complicated sequence of the early Triassic Period faults in WestSichuan by the methods of fracture filling,carbon-oxygen isotope,sound emission,even temperature determination of wrap,etc,and studies the matching relation between the se-quence and the oilgas evolution.The length and breadth of the fault and their valid confin-
    ing are comprehensively studied by many methods and data,such as fluid cahracter,layer stress,section of fault plane,ground survey in fault zone.In addition,the paper makes an area assessment and points out the areas of different confining conditions,providing direct basis for improving exploration benefit.


    Simulated Experiment and Study SP Logging
    Sun Jia-xu Yan jun Liu Tangyan Xie Chengkang
    1996, 18(3):  18-23.  DOI: 10.3863/j.issn.1000-2634.1996.03.003
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    Basing on the origin of the spontanous electric field in the well,technological process of SP logging and the similarity theory of the simulated experiment,thispaper obtains the theoretical basis of part space physical model. According to the theory, a simulated exper-iment device is designed and made,and a series of tests are done in different conditions. In
    the end,the relation of SP to such factors as formation resistivity invasion radius,forma-tion water-out degree is obtained,and a contrast analysis of experiment results,numerical simulation and practical data is given in this paper as well.
    Analogue Calculation of Regional Acient HydrodynamicPotential and Its Application in Banqiao Hollow
    Chen Yi-cai Zhang Mao-lin Li yan-jun yang Yu Zhi-hai Yang Chi-yin
    1996, 18(3):  24-30.  DOI: 10.3863/j.issn.1000-2634.1996.03.004
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    Basing on the resumption of buial history and geothermal evolution,the authors applytwodimensional Darcy’s law and contionuous flow equation to the analogue calculation of ancient hydrodynamic potential energy of oil,gas,water in reservoir bed.The capillary pressure of reservoir bed and the conductive efficiency of fault are considered in the ana-logue calculation. According the the distribution of ancient hydrodynamic potential in
    reservoir bed,the favourable distribution reions of oil and gas are forecast in bangiao hol-low.

    油气田开发
    Experimental Study of Hydratability of Water SensitiveShale Formation in Contact with Drilling Fluid
    Liu Xiang-jun Luo Ping-ya
    1996, 18(3):  31-37.  DOI: 10.3863/j.issn.1000-2634.1996.03.005
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    The diffusion-absorption constant of the system composed of shale formation and mud, and the absorbed water incremental distribution at any time are significant parame-ters for studying wellface stability in shale formation. Its influence factors are quite com-plicated and therefore, are difficult to determine through simple laboratory experiment.
    Starting from the rock current experiment of the laboratory long core, this paper makes a research on the method of using log information to determine deffusion-absorption con-stant and absorbed water incremental distribution. The conclusions of the research indi-cate that diffusion-absorption constant and absorbed water incremental distribution can be determined solely through quantitative analysis of rexistivity profile of invasion zone in
    the state of static filtration.
    Development and Application of Simulationg System of Well Cemintation
    Xu Bi-hua Guo Xiao-yang Liu Chong-jian
    1996, 18(3):  38-43.  DOI: 10.3863/j.issn.1000-2634.1996.03.006
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    The accurate reflection and description of the dynamic variations of the parameters in the cementing process is of great importance to the reasonable control of operating mea-sures and the guarantee of cementing quality. This paper introduces the characteristics and fundamental principles of the models used in the simulating system of cementing develop-ment and the functions of the system according to the developed cementing simulating sys-tem , and introduces the application in several oilfields and its practicality.
    ptimized Combination of Bit Series and Optimized Parameter in Whole Well
    Zhou Kai-ji Yuan Qi-ji Guo Wen-cai Lian Xia-kun Chen Jia-ming Chen Huai-gao
    1996, 18(3):  44-50.  DOI: 10.3863/j.issn.1000-2634.1996.03.007
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    Optimization of bit types used in whole well drilling procedure is a multi-stage deci-sion making. Basing on the systems engineering theory, this paper develops the multi-stage decision tree of optimized combination of whole-well bit series, the state conversion equation of whole-well bit dynamic programming, and index function. Furthermore, the minimization theory is used to seek the optimized tree path, through which the whole-well bit series optimized combination and the optimized working parameter are obtained,This is an essential path to achieve short drilling period, high drilling rate, low cost in drilling deep or superdeep well.
    Determination Method of Polymer Flooding Relative Permeability Curves
    Chen Tielong Tang Jinxing Peng Kezong He Jinsong
    1996, 18(3):  51-56.  DOI: 10.3863/j.issn.1000-2634.1996.03.008
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    On the basis of experimental study of the in-situ rheology of the polymer solution through porous media, this paper obtains an effective viscosity dependence of polymer so-lution upon phase saturation and fractional flow rate. Thus the experimental technique an method to determine the polymer flooding relative permeability curves are developed by steady-state method and the relative permeability curves for oil/polymer solution system
    and for oil/water system after the polymer is slugged , are successfully measured, and the relevant emprical equations are also selected. in this paper, The characteristics of the rela-tive permeability curves for polymer flooding is discussed, and the effect of free polymer molecules in water phase and the polymer absorbed and retained in the rocks on the rela-tive permeability curces is analyzed, revealing the law of multiphase flow during polymer flooding.
    Analysis of Transient Flow of Perforated Well with Boundary Element Algorithm
    Fan Xue-ping Huang Jian-ming Tang Yu-la Xu Wei
    1996, 18(3):  57-67.  DOI: 10.3863/j.issn.1000-2634.1996.03.009
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    In this paper, we take account of the factors of anisotropic formation damage, perfo-rated hole state and various boundary conditios, and establish the reservoir model and transient flow mathematical model. By using the direct solution of borndary element math-ematical model and regional cut technique, we also obtain the rule of the transient flow of the reservoir near the perforations varying with perforations and formation damage and the
    characteristics of roduction performance and transient pressure changes. It is of guiding significance to the distribution of well network, the optimization of perforating parame-ters, the design of production increasing measures and the improvement of well testion lo-cation and other production problems. It is certain that boundary element algorithm will be widely used in the realm of reservoir digital simulation.

    Determination of Critical Rate and Its Application in Oio-Field Development
    Duan Yong-gang Fu Yong-quan
    1996, 18(3):  68-73.  DOI: 10.3863/j.issn.1000-2634.1996.03.010
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    Critical rate is of great inportance in oil field development. On the bsis of the evalua-tion test of reservoir rate sensitivity, this paper presents the method of determing critical rate, and derives the formula of transforming lab critical rate into the critical rate under reservoir condition. At the same time, critical rete is combined with the oil field develop-ment to determine reasonable production rate, sate sensitivity damage radius and displac-ing velocity in development tests.

    A Method for the Automatic History Matching ofSingle Well Black Oil Model
    Li Tie-jun chen Ming-qiang
    1996, 18(3):  74-81.  DOI: 10.3863/j.issn.1000-2634.1996.03.011
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    A method for the automatic history matching of a 3-dimentional and 3-phase single well black oil model is presented in this paper, and a non-linear objective function with restraints is set up on the basis of this method, which can be used to minimize the objec-tive function and achieve automatic history matching, thus obtaining the parametric values of the formation. In addition, an automatic history matching is made for the data of a well in Baikouquan,Xinjiang and the parametric values of the formation are obtained. At the same time, the parametric values of the formation are compared with the electrometric in-terpretation results and the results obtained by this method prove to be reliable.

    石油机械工程
    Mechanism Researcch of Abrasive Wear under Impacting Condition
    Zhou Qiu-sha Zhou Xi-rong Yang Qi-ming He Guang-hui
    1996, 18(3):  82-88.  DOI: 10.3863/j.issn.1000-2634.1996.03.012
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    Impact abrasive wear is one of the worst conditions on abrasion.In order to reveal its essence,this paper introduces the characteristics of impact abrasive wear and analyses the debris forming mechanism of some materials of different qualities under impacting condi-tion,on the basis of the experments.In the end,some important conclusions are drawn and
    the direction of further research is pointed out.
    Feasibility Research of YNB-1000-TypeHydraulic Driling Pump
    Wang De-yu Ma De-kun
    1996, 18(3):  89-93.  DOI: 10.3863/j.issn.1000-2634.1996.03.013
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    This paper points out,by comparing hydraulic drilling pumps with conventional tri-cylinder drilling pumps,that the former possess better drilling performance,and social and economic benefit than the latter,and therefore represent the new develpment of drilling pump technology.This paper also offers an approach to the design of 1000 HP hydraulic drilling pumps,presents the construction and working principle of a kind of hydraulic drilling pumps,and expounds the feasibility and possibility of the approach.

    A Practical method of Obtaining Allowable Erosion Length of Sea-Bottom Imbeded Oil Pipeline
    WangWei
    1996, 18(3):  94-97.  DOI: 10.3863/j.issn.1000-2634.1996.03.014
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    In this paper,on the basis of beam strength theorythe author presents the modifying-moment method,by which allowable erosion length of a sea-bottom imbeded oil pipeline can be obtained easily.The example in the paper shows that the calculation is simple and the result is reliable.Thus the method is practical in engineering.

    Development and Migration of Crank Linkage Motion Analysis
    Tang Jia Zhou Guo-you
    1996, 18(3):  98-101.  DOI: 10.3863/j.issn.1000-2634.1996.03.015
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    In this paper,Various methods are used to analyze the crank linkage motion,and theapplicable theory is proviced for relevant engineering staff.

    Geometric Design of Involute Standard Spur Gears
    Yang Yi-ming Zhang Hong-rong
    1996, 18(3):  102-105.  DOI: 10.3863/j.issn.1000-2634.1996.03.016
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    Basing on the ongaging theory of involute standard spur gears,this paper descriobesthe parameters and tooth profiles,and the way of determining the technical parameters ge-ometric dimension.

    石油化学工程
    Study on MTC Labortory Composition
    Chen Fu Chen Da-jun Yang Shi-hai Zhang Tai-liang
    1996, 18(3):  106-111.  DOI: 10.3863/j.issn.1000-2634.1996.03.017
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    The technique of the conversion of drilling fluid into cement is called MTC technique for short.In this paper,the self-made dispersant F-2,organic slow dilution agent,early strength agent and activator are sieved by MTC composition.MTC is successfully convert-ed in laboratiory at different temperature.The in-situ mud test in Liaohe Oil Field shows
    that due to the composition,the strength of the converted cementstone is greater than 10 Mpa in three days,and its rheological property and viscosifying time can satisfy the re-quirements of cementing.
    Phenoitc Wastewater Treatment by Liquid Membrane Extraction Method in Refinery
    Yang Xu Huang Wen-ming
    1996, 18(3):  112-116.  DOI: 10.3863/j.issn.1000-2634.1996.03.018
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    The liquid membrane extraction method is studied for treating the phenolic wastewa-ter produced in refinery. Some factors influencing the extraction efficiency are studied ex-perimentally, including the emulsifying agent concentration, sodium hydroxide concentra-tion, the ratio of oil volume to water volume, the ratio of emulsion fluid, PH value of wastewater, mixed strength and extraction time. The treatment of phenolic wastewater by
    liquid membrane extraction methid can decrease the amount of phenol significantly and so it has bright applied prospect.

    管理科学，基础科学
    Fuzzy Forecast and Its Application in the Control of Productions Cost
    Zhang Bin Yong Qi-dong
    1996, 18(3):  117-120.  DOI: 10.3863/j.issn.1000-2634.1996.03.016
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    This paper presents a model of fuzzy non-linear forecast which has been applied to the management cost control in oil field. The result of its application shows that this mod-el has not only a certain theoretical significance but also a certain practical significance.

    Multiple Solutions of Dirichlet Problem of a class of Quasilinear Elliptic Equations
    Jiang Xiao-tao
    1996, 18(3):  121-125.  DOI: 10.3863/j.issn.1000-2634.1996.03.020
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    This paper discusses the existence of multiple solutions of Dirichlet problem in a bounded domain with somooth boundary.

    Analysis of Asymptotic Solutions of Differential Equations
    Zhang Jian-jun
    1996, 18(3):  126-132.  DOI: 10.3863/j.issn.1000-2634.1996.03.021
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    This paper brielfy introduces several asymptotic properties of the solutions of differ-ential equations,appropriately supplements Theorem 2, and also pressents two corollariesof Theorem 2.
    Toward Better Financial Budgetary Management of Limited Amount of Funds
    Luo Wu-yin
    1996, 18(3):  133-137.  DOI: 10.3863/j.issn.1000-2634.1996.03.022
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    Management of funds is the key point of financial managdment in any educational in-stitution. It requires that budgetary management of funds should be strengthened, the role of the school budget committee brought to full play, budgetary extensively explored while revenue well organized, so that the annual balance of revenue and expenditure can be achieved. In order to make te best overall fund yield, it is necessary to employ the model of centralized fund management, with which the system of one-level accounting and two-level management is followed. The centralized management of funds is conducive to strengthening accounting and audit monitoring. Proper management of limited funds can promote educational quality and produce beneficial results.