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pressure
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  压力
    Abnormal Pressure Regimes in Sedimentary Basins and Their Prediction and Detection
    沉积盆地异常压力体系及其预监测
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    Research on the Relationship between Abnormal Pressure and Gas Accumulation in Upper Paleozoic of Northen Ordos Basin
    鄂尔多斯盆地北部上古生界压力异常及其与天然气成藏关系研究
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    The Principle and Theoretical Calculation for the Pressure Proportioned
    压力比例混合器的原理和理论计算
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    Analysis of anomalous pressure in producing test of well No.2 Zhangjiachang
    张2井试生产中压力反常现象的分析
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    THE DETERMINATION OF THE PRESSURE LOSSES IN A WELL BY USING REGRESSION METHOD AND DIMENSION ANALYSIS METHOD
    用回归分析和因次分析确定钻井压力损失的方法
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  加压
    Superficial View on the Grate Structure of Dg3.8m Crushed coal Pressure Gasifier
    Dg3.8m碎煤加压气化炉炉篦结构浅析
短句来源
    STUDY ON CARBON CORE FOR SiC CONTINUED FILAMENT BY CVD Ⅰ. Preparation of Mesophase Pitch by Oligomerization Reaction under Pressure
    化学气相沉积法SiC连续纤维炭芯的研究Ⅰ.加压齐聚反应调制可纺中间相沥青
短句来源
    Partial Oxidation of Methane to Syngas over BaNi_(0.3)Al_(11.7)O_(19-δ) Catalyst at High Pressure
    加压条件下BaNi_(0.3)Al_(11.7)O_(19-δ)催化剂上甲烷部分氧化制合成气
短句来源
    Through the research of CH_4-O_2-H_2O reaction system, we know if we add steam to oxidation methane the influence of high pressure to reaction system and catalyst can be eliminated.
    通过对CH_4-O_2-H_2O 反应体系进行研究,向甲烷部分氧化体系添加水蒸气消除了加压对反应体系和催化剂的影响,为工业应用铺平了道路。
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    SO 2 was diluted with the air and oxidized to SO 3 at elevated pressure in a 3 stage converter.
    汽化的液体SO2 经加压干燥空气稀释后进行三段一次转化生产气态SO3 。
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  压差
    PRESSURE DIFFERENTIAL CALCULATION OF VERTICAL GAS LIQUID TWO PHASE ANNULAR FLOW
    铅直气液两相环空流动压差计算方法的评价
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    DESIGN AND APPLICATION OF AUTOMATIC SWING HYDRAULIC DECOKER BASE ON PRESSURE DIFFERENTIAL PRINCIPLE
    压差自动切换水力除焦器设计与应用
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    Y441 series step by step releaseble packer by double pressure differences.
    Y441系列双压差逐级解封封隔器
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    Traditional productivity prediction of oil wells in stress-sensitive reservoirs is studied by assuming that the deformation coefficient of the formation is constant, which may result in significant errors in the prediction of the oil well productivity especially when the producing pressure drop is high.
    对于变形介质油藏油井产能预测问题,传统的研究方法均假设地层岩石的变形系数为常数,这导致了目前的变形介质油藏产能预测模型不能准确地反映出油井产能的变化趋势,尤其在生产压差较大的情况下,误差较大。
短句来源
    Determination on the ulating Valve Pressure Drop of Pump Outlet Piping System
    泵出口管路系统调节阀压差的确定
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  “pressure”译为未确定词的双语例句
    A Study on the Hydraulic Fracturing Pressure Behavior Well-testing Analysis and Stimulation Effect Improvement Method
    水力压裂压力动态试井分析与增产效果提高方法研究
短句来源
    Preparation and Characterization of AMPS/DMAM/FA/AM Copolymer Acting as Filtrate Reducer for Well Cementing at High Temperature and High Pressure Stratum
    高温超压地层固井降滤失剂AMPS/DMAM/FA/AM共聚物的合成与特征研究
短句来源
    ANALYSIS OF ROCK SAMPLE TEMPERATURE FIELDS IN A HIGH TEMPERATURE AND HIGH PRESSURE VESSEL
    岩石在高温高压容器中的温度场分析
短句来源
    Practice and Viewpoints on Low Pressure Gas-Gathering Techniques in Daqing Oilfield
    对大庆油田低压集气技术的认识和实践
短句来源
    STUDY OF PRESSURE INTERFERENCE BETWEEN WELLS IN DOUBLE POROSITY MEDIA WITH TYPE-CURVES
    双重孔隙介质井间干扰样板曲线研究
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  pressure
In this article we investigate the asymptotic behavior of and using the dynamical system techniques: the pressure function and the variational principle.
      
An algorithm to calculate the pressure is presented.
      
The reported method1 of their synthesis involves hydrogenation at high temperature and pressure.
      
Invariant of topological pressure under some semi-conjugates
      
In this paper, the topological pressure is preserved under some semi-conjugates, and a formula of computing topological pressure by use of periodic points for positively expansive continuous map with specification is given.
      
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In this paper we calculated the temperature fields of high temperature and high pressure vessel by finite element method, and discussed the influences of various factors on the temperature fields. The calculation results showed that in order to obtain rather homogeneous temperatures in the rock sample it is necessary to select suitable length of the heater and the appropriate winding. In order to decrease the temperature of internal sides of the vessel and the power expense, it is very important to improve...

In this paper we calculated the temperature fields of high temperature and high pressure vessel by finite element method, and discussed the influences of various factors on the temperature fields. The calculation results showed that in order to obtain rather homogeneous temperatures in the rock sample it is necessary to select suitable length of the heater and the appropriate winding. In order to decrease the temperature of internal sides of the vessel and the power expense, it is very important to improve the design of the insulator. The results of the calculation for the unstable state pointed out the relationships between the heated rate, the time occurred and the value of maximum temperature difference in the rock sample. At the same time, we obtained results from the analog method by means of resistance network. The results were compared with that of the finite element method, and they are in good agreement.

本文采用有限单元法计算了高温高压容器的温度场,对各种因素进行了分析比较。计算结果表明,为了在岩样内得到均匀的温度场,必须正确地选取电热器长度和电热丝的绕制方式;为了降低简体内壁温度和减少功率消耗,应当改善隔热层的设计。非稳态计算结果指出了加热速率与岩样内最大温差出现的时间和数值的关系。本文同时给出了电阻网络模拟方法所得到的结果,并与有限单元计算结果进行了比较,两者是一致的。

Method of numerical analog is discussed.A set of equations is worked out co- nsidering the thickness ,heterogeneity,temperature and rock mechanics of the res- ervoirs,and integrating filtration mechanics with rock mechanics.Despite the co- mplicate nature of the equations,non-linearity of unknown functions and presence of unknown boundaries(fractures),the finite element method for alternating solu- tions has been applied with success and satisfactory results obtained in calculation. Also discussed are the opening...

Method of numerical analog is discussed.A set of equations is worked out co- nsidering the thickness ,heterogeneity,temperature and rock mechanics of the res- ervoirs,and integrating filtration mechanics with rock mechanics.Despite the co- mplicate nature of the equations,non-linearity of unknown functions and presence of unknown boundaries(fractures),the finite element method for alternating solu- tions has been applied with success and satisfactory results obtained in calculation. Also discussed are the opening of fractures in reservoirs nearby the bottom of injection wells,size of fractures,contribution of fractures to the absorbability of reservoirs and interferences between the multi-fractured zones etc.in respect to the application of the method in sandstone reservoirs under high-pressure water flooding.Clarification of all these problems may help determine a reasonable range of water-flooding pressure.

本文在大庆油田提高压力注水的情况下,应用数值模拟方法研究了注水井油层垂直和水平裂缝产生的条件,裂缝的大小,裂缝对油层吸水能力的改善,以及多层裂缝之间的干扰等问题。提出研究合理注水压力范围的重要意义。

This paper discusses the optimum methods for calculating and determining va- rious hydraulic parameters and mud rheologic parameters in jet drilling. The Sp-hydraulic optimization slide rule can bc used in calculating and deter- mining the proper relationship of hydraulic parameters and mud rheologic parame- ters.It includes: Side 1 (1)rheology of drilling mud,such as n,k_2,θ_0θ_(300),θ_(600), etc. (2)critical velocity and“Z” value, (3)rheological model_3——modified power law or power law, (4)lifting capacity,...

This paper discusses the optimum methods for calculating and determining va- rious hydraulic parameters and mud rheologic parameters in jet drilling. The Sp-hydraulic optimization slide rule can bc used in calculating and deter- mining the proper relationship of hydraulic parameters and mud rheologic parame- ters.It includes: Side 1 (1)rheology of drilling mud,such as n,k_2,θ_0θ_(300),θ_(600), etc. (2)critical velocity and“Z” value, (3)rheological model_3——modified power law or power law, (4)lifting capacity, (5)pressure losses in laminar flow, Side 2 (6)pressure losses in turbulent flow, (7)bit hydraulic optimization

本文介绍了在喷射钻井中计算和确定各种钻井水力参数和泥桨流变参数相互适应的优选方法。其中包括:泥桨流变性、临界流速和“z”值、流变模式、净化能力、层流压耗、紊流压耗、钻头水力参数优选等。

 
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