Experimental simulation system is employed to investigate the variable mass flow in perforation completed horizontal wellbore.
设计并建立了水平井筒变质量流动模拟实验装置。
The flow of oil and sand mixture in horizontal wellbore is a special flow model of solid-liquid two phase flow in pipe flow actually.
含砂原油在水平井水平段中的流动是液固两相沉降性浆体水平管流的一种特殊形式。
A "theory of micro element" and equivalent seepage flow was raised to solve the various mass flow of single phase in the horizontal wellbore.
对于水平井井筒的稳定单相流动，提出了水平井井筒管流的“微元段”观点，从而简单实用地解决了井筒内的变质量流问题；
Large bypass ports open automatically as drill pipe is run into the vertical or horizontal wellbore, diverting mud into the annulus above any restrictions.
当钻杆进入垂直或水平井段时，大孔径旁通自动打开，将泥浆无阻碍导入环空。
A mathematical model coupling fluid flow in the reservoir with the flow in the horizontal wellbore is developed and the method for solving the model is presented.
提出了把油层中的渗流与水平井筒内的流动耦合的数学模型及求解方法。
The research result is published in the paper "Research of Sand Carrying Capacity of Heavy Oil Considering Variable Mass Flow in Horizontal Wellbore" in Acta Petrolei Sinica.
本部分基于研究成果发表于石油学报“考虑变质量流水平井筒稠油携砂能力研究”一文中。
The law of the variable mass flow in the horizontal wellbore is useful for the horizontal well output prediction, and optimal design and dynamic analysis on oil well production system.
水平井井筒变质量流的流动规律是进行水平井产能预测、油井生产系统优化设计及动态分析的基础。
The research on variable mass flowing law in horizontal wellbore is the basis of the productivity prediction, horizontal length selection and completion design optimization of horizontal well.
水平井筒变质量流动规律的研究是水平井产能预测、水平井水平段长度优选以及水平井完井设计优化等的基础。
Based on the model to calculate mixture loss, a new calculation model of pressure drop for stratified flow in horizontal wellbore has been developed by applying the momentum conservation equation.
在混合损失计算模型的基础上，应用动量守恒原理推导出了新的水平井筒气液两相分层流型压降计算模型。
Note that some horizontal Wells are designed such that after reaching true 90-degree horizontal, the wellbore may actually start drilling upward.
请注意，一些水平井是这样设计的，在井眼倾角到达90度之后，井眼可能实际开始向上钻进。
This paper studies systematically the effects of wellbore diameter, wellbore trace, horizontal section length and eccentricity on production of horizontal well.
系统分析了水平井井眼尺寸、井眼轨迹、水平井水平段长度和偏心距对水平井产量造成的影响。
The controlled reserves and productivity of a horizontal well were determined by the wellbore direction, the principal values of main direction and permeability of the anisotropic reservoir.
结果表明，水平井的控制储量和产能由水平井方位、各向异性渗透率主值及主方向共同决定。
Establish the transient flow model of the horizontal well for the uniform flux and infinite conductivity wellbore type.
建立了水平井筒为均布渗流型和无限导流型的不稳定渗流模型。
Secondly, in the horizontal gas Wells, wellbore annulus flow of gas - solid two-phase flow.
其次，在气体钻水平井中，井筒环空流动为气—固两相流。
Core plugs are ordinarily cut perpendicular to the axis of the core or parallel to the axis, called horizontal and vertical plugs, respectively, when cut from a vertical wellbore.
岩心栓一般从平行或垂直于岩心轴的方向切下来，从垂直井眼方向切取的岩心中取出的分别叫做水平岩心栓、纵向岩心栓。
If there is a shale sandwich near wellbore in horizontal well logging, it is harmful to promote production rate.
水平井射孔井段的井眼附近若有泥质夹层，无疑对水平井提高采收率是很不利的。
In the formation there is only horizontal thermal exchange with vertical thermal exchange ignored. In the wellbore there is only heat convection with heat conduction ignored.
其中地层中只有水平方向的热传导，忽略垂直方向上的热传导，井筒中仅考虑流体的热对流，忽略热传导。
With corresponding boundary conditions, the mathematical model for semi-infinite wellbore is analyzed and solved to get the pressure distribution in horizontal interval.
通过相应的边界条件，对半无限长井筒的数学模型进行解析求解，得到水平段的压力分布，并对连续油管车所测的实际数据进行了分析。
A condition that may occur when a coiled tubing string is run into a horizontal or highly deviated wellbore.
在挠性管柱下入水平井或大斜度井井筒中时可能发生的一种状况。
A condition that may occur when a coiled tubing string is run into a horizontal or highly deviated wellbore.
在挠性管柱下入水平井或大斜度井井筒中时可能发生的一种状况。
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