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vertical well
    The Study of Orthogonal Analysis of the Recovery in Thick Formation by Vertical Well
    垂直井开采厚油层的正交分析研究
    Analysis of horizontal and vertical well productivity in heavy oil reservoir
    稠油油藏水平井、垂直井产能分析
    When the vertical well depth is 2311.5m,well deviation 1.08o,the offset shall be 5.69m,thus far away from the target area. Thereof,depend on kick-off drilling tool performance,the KOP is then redesigned to 2311.5m.
    垂直井深达2311.5m时,井斜1.08°,偏距5.69m,远离靶区,据此根据造斜钻具性能,造斜点改为2311.5m。
    A STUDY OF DETERMINING THE OPTIMAL POSITION OF PERFORATED INTERVAL IN A VERTICAL WELL AND THAT OF A HORIZONTAL WELL.
    确定水平并水平段、垂直井射孔段最优位置方法研究
    Production Evaluation for Recovery Heavy Oil in Horizontal Well or Vertical Well
    稠油藏水平井、垂直井产能分析
    A STUDY OF BIFURCATION OF THE COMPRESSIVE-ROTATING DRILLSTRING IN VERTICAL WELL SECTION
    垂直井中受压段旋转钻柱的分岔研究
    DETERMINATION METHOD FOR MINIMUM FLOW RATE OF GRAVEL PACK IN VERTICAL WELL
    垂直井砾石充填防砂最小排量的确定方法
    The internal boundary condition is vertical well in homogeneous reservoir, vertical fissure with infinite or finite conductivity, compounding reservoir.
    内边界条件:均质地层垂直井、均匀流量垂直裂缝、无限导流垂直裂缝、有限导流垂直裂缝、复合油藏;
    The making principle of horizontal well synthetic seismograms is the same as that of vertical well synthetic seismograms,but the making methods are dif- ferent.
    水平井人工合成记录的制作原理与垂直井相同,但具体的制作方法有所区别。
    On the basis of critical rate formulas, this paper presents four methods to determine the optimal position of a horizontal well and perforated interval in a vertical well in a reservoir with bottom water drive or with a combination of gas cap and bottom-water drive. The methods suggested in this paper can serve as a guide in the oil field develop program using a combination of horizontal and vertical wells.
    在临界产量公式基础上,本文提出4种方法来确定水平井水平段、垂直井射孔段在气顶底水油藏、底水油藏垂直剖面上的最优位置,对水平井、垂直井开发方案设计具有一定的指导意义。
    It is pointed out that chill collar should be installed in vertical well section or the well section with small deviation angle but weighted drill pipe or ordinary drill pipe should be used in the well section with big deviation rate and horizontal well section.
    指出在设计水平并钻柱时,应把钻铤安装在垂直井段或井斜角不大的井段,而在大斜度井段和水平井段使用加重钻杆或普通钻杆。
    (2)analysis of the helicallaminar flow field of a pure viscous fluid flowing through aconcentric annuli of a vertical well :3)the study on flowProperties of Power-Law fluid and axial laminar flow fieldof Bingham fluid in an eccentric annulus of a directionalwell,and(4)the study on cuttings transport mechanismand rules in the annulus space of the inclined and horizona-tal wells.
    (2)垂直井同心环空中纯粘性流体螺旋流层流流场的理论分析; (3)定向井偏心环空中幂律流体流动规律及宾汉流体轴向流层流流场的研究;
    There is often an amount of remaining oil in the top of a positive rhythm reservoir after waterflooding with vertical well. Based on the results of numerical simulation, this paper studies the effect of producing the remaining oil by using side-tracked ultra-short radius horizontal wells in existing vertical wells.
    在垂直井注水开发的正韵津油层顶部往往留有大量剩余油,本文用数值模拟研究了在现有垂直井眼上侧钻超短半径水平井开来这些剩余油的效果。
    In light of multivariate regression, the relevant formula to calculate the recovery efficiency of vertical well and that to calculate the relative recovery efficiency of horizontal well in a positive rhythm reservoir are respectively obtanied from the results of numerical simulation, which, combined with economic analysis, can be used to make a feasibility study for producing the remaining oil in a positive rhythm reservoir with horizontal wells.
    利用多元回归,分别从模拟计算结果得到计算正韵律油层垂直井采收率和计算用水平井开采剩余油提高采收率相对值的多元回归相关公式。 结合经济分析应用这两个公式,可对正韵律油层利用水平井开采剩余油的可行性作出评价。
    Studying the physical properties of the Donghe sandstone penetrated by a well in the Tarim basin shows that there is an outstanding vertical flow in the Donghe sandstone,a main producing formation in the basin A suggestion is given to produce such reservoir by horizontal wells With a comparison of productivity of a vertical well and a horizontal well, a relationship between the length of horizontal well and its productivity is established The conclusion is verified by the production of a horizontal well
    通过对塔里木盆地某井东河砂岩储层物性描述,发现主力产层东河砂岩存在明显的垂向渗流,并提出这类产层适合用水平井进行开采。 同时研究了这类储层钻垂直井开采与钻水平井开采的产能比较,提出了水平井长度与提高产能的关系。
    Conclusion This method is only suitable for designingoptimal project of steam drive for vertical well in general heavy oil reservoir;
    结论该方法只适用于一般稠油油藏垂直井蒸汽驱最优方案设计;
    Two and three dimensional simulation studies have been done to evaluate waterflood oil recovery in a 40 acre 5 spot pattern using horizontal and vertical well systems. The three dimensional simulation results indicate that the parameters considered,i.
    为了评价面积0.16km2(40英亩)的五点井网水平井系统(水平注水井和水平生产井)和垂直井系统(垂直注水井和垂直生产井)注水开发的原油采收率,进行了二维和三维模拟研究。
    Waterflood oil recovery using a horizontal well system is shown to be higher than that obtained by using a vertical well system.
    但是,用水平井系统所得到的采收率比垂直井系统的高。
    This paper studies the steady state porous flow for 3D model. Production formula is driven for developing heavy oil in horizontal well or vertical well.
    针对稠油藏非牛顿流体在多孔介质中的渗流特点 ,研究了水平井、垂直井定常三维渗流 ,建立了具有启动压力梯度非牛顿流体的水平井、垂直井的产能公式。
    Taking into account the rotating effect of the drillstring, this paper presents a bifurcating differential equation for the rotating slender drillstring being in tension in vertical well section.
    考虑到垂直井中钻柱受拉段在旋转时的转动效应 ,建立了顶部悬挂、受分布浮重作用的旋转细长钻柱的分岔微分方程。
 

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