井眼的环空体积为115方。
泥浆密度增加可使环空岩屑床面积大大降低。
The raising in mud density can reduce the area of cuttings bed .
流核中心线偏离环空中心线，且偏向环空内侧。
The center line of the flow care is partial to the inner side of annulus.
使用双极坐标系研究流体在偏心环空内的流动。
The bipolar coordinate system in which the two boundary circles of eccentric annuli become the coordinate surfaces is used.
另外，通常使用特殊的添加剂去减少环空的气窜。
Additionally, special additives are often used to reduce the occurrence of annular gas flow.
并对影响环空井下找水仪测量误差的因素进行了分析。
The measurement errors and the effective factors on errors are analyzed.
并对影响环空井下找水仪测量误差的因素进行了分析。
The measurement errors and the effective factors on errors are...
结果表明，波纹环空流场特性与流道的形状有密切关系。
The result shows that thecorrugation and annular flow field is closely related with the shape of flow channel.
水泥浆环空流动的壁面剪应力是影响顶替效率的关键因素。
The wall shear stress caused by cement slurry flowing in the annular space is a key element that affects the displacing efficiency.
石油和化工中许多问题需要求解非牛顿流体偏心环空螺旋流。
Many problems in petroleum and chemical industry can be reduced to the solutions of the helical flow of Non-Newtonian fluid in eccentric annular space.
在投加环空保护液后，环空腐蚀速度远远小于油管内腐蚀速度。
After the fluid is used, the annulus corrosion rate is more lower that that of tubings.
由于深水的存在使得环空多相流的流动特征与陆上相比更加复杂。
The characteristics of multiphase flowing in annuals become more complicate than the land because of the deep water.
延迟固井技术主要用在小间隙、窄环空井眼和一些特殊井的固井工艺中。
Delayed cementing technology is mainly used for cementing slim holes, Wells with small annular space and some special Wells.
分析结果表明，环空偏心距、内管冲程是影响瞬时流量分布的主要因素。
Analyses indicate that the eccentricity and stroke of the inner cylinder are the main factors that affect the instantaneous flow rate distribution.
建立了偏心度在井眼内按线性及正弦规律变化的偏心环空流问题理论模型。
The model established in this paper puts forward two situations, a linearly and a sinusoidally skewed annulus.
在井内加压下进行水泥胶结测井带压作业，其目的是将微环空与串槽区分开。
The purpose of cement bond log (CBL) under increasing borehole pressure is to differentiate micro annulus from bypass channel.
在抽油井的抽油过程中和关井期间测量环空内液面高度的一种声波测井方法。
A sonic tool used in a pumping well to determine the distance to the top of the fluid in an annulus during pumping and shut in.
建议在井下条件允许的情况下，增加环空与套管内的压差值来提高固井质量。
So it is recommended that the pressure differential between the casing and the annulus be increased to improve the cementing quality if the downhole conditions permit.
本文应用物质平衡原理，研究了抽油井环空拟液面在测试过程中的运动规律。
Based on the principle of mass balance, this paper deals with rules of. motion of the pseudo-fluid level in the annular space in the process of testing the pumping oil well.
结合现场调查和统计规律，建立了环空压差和层间压差与固井质量的关系图版。
Based on field investigation and statistical data, the relation plate of annulus pressure differential, interlayer differential and cementing quality is plotted.
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。
Large bypass ports open automatically as drill pipe is run into the vertical or horizontal wellbore, diverting mud into the annulus above any restrictions.
油基环空保护液是非腐蚀性的，但单位成本高、环境污染严重，不能广泛应用。
Oil base annulus protection fluid is not corrosive, however, its high cost and environment pollution restricts its universal use.
室内利用模拟试验装置进行了环空压差和层间压差与固井质量的关系的试验研究。
The experimental study on the relationship between annulus pressure differential, interlayer differential and cementing quality is carried out on the lab simulation test unit.
本文利用流变学原理，讨论了流体的流变性能对偏心环空注水泥顶替效率的影响。
In this paper, on the basis of rheological theory, we have discussed the effect of the slurry properties on the mud displacement efficiency in eccentric annulus.
在此主要介绍了环空压裂悬挂器的设计原理、试验和推广应用情况，应用效益显著。
Design principle and experiment and popularized application of annular fracturing hanger are introduced in this paper, its application effect is notable.
分析结果表明，环空偏心距、内管冲程、内管冲次对瞬时流量分布的影响较为明显。
Analyses indicate that the eccentricity, the stroke and the frequency of the inner cylinder all affect the instantaneous flow rate distribution remarkably.
为了减轻油气井压裂后对地层的污染并降低作业成本，研制了高强度环空压裂专用悬挂器。
To reduce the pollution of the oil-gas well towards the bottom after its fracturing and decrease the operation costs, the hanger specially used for annulus feeding fracturing was developed.
文中介绍了WJ 1型过环空新型产液剖面测井仪的结构特点、工作原理以及主要技术指标。
Structural character, working principle and main technical specification of WJ-1 new type through annulus logging tool used to measure production water cut has been introduced in this paper.
配注器装有孔口阀和单向阀系统，使泵入的流体沿环空向下或沿注入管线向下进入生产导管。
The injection mandrel is equipped with a port - and check-valve system to direct fluid pumped down the annulus or injection line into the production conduit.
配注器装有孔口阀和单向阀系统，使泵入的流体沿环空向下或沿注入管线向下进入生产导管。
The injection mandrel is equipped with a port - and check-valve system to direct fluid pumped down the annulus or injection line into the production conduit.
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