Hole Angle should not exceed 15 degrees any where in the hole unless down hole geological conditions induce such deviation, such as acute fault intersections.
井斜角在井眼任何地方不应超过15度，除非井下地质条件引发了此种偏离，如严重的断层交叉。
Bolt Hole Spacing should be consistent with the allowable deviation of norms.
螺栓孔孔距的允许偏差应符合规范的规定。
A system formed by both the tolerance zone of the shaft with definite basic deviation, and that of the hole with different basic deviations.
一定的轴的公差带与不同基本偏差的孔的公差带形成各种配合的一种制度。
This paper presents the tolerance range displacement method, with which the basic deviation of a hole is determined and therefore the basic hole system becomes the basic shaft system.
提出了公差带位移法，以此来确定孔的基本偏差，使基孔制变成了基轴制，并给出计算实例。
Limited distance deviation of the optional bolt hole on flange shall be 2mm.
法兰上非强制螺栓孔的有限距离偏差应该为2毫米。
The axial hole deviations caused by laser-guiding are analysed and the experimental results show that the new technology of laser guiding can prevent effectively the axial hole deviation in...
分析了激光导向加工时孔产生的误差，实验结果表明，采用激光导向的深孔加工新技术能有效地防止孔偏差。
According to common problems on spiral excavation drilled-pouring pile, including deviation of pile, declivity of hole, slumped hole, it analyzes reasons and puts forward relative prevention measures.
针对桩位偏移、桩孔倾斜、塌孔等旋挖钻孔混凝土灌注桩常见的质量问题，就其产生的原因进行了分析，并提出相应的预防措施和处理办法。
The downhole stabilizer location adjuster, fixed between the bit and the drill collar, is a special tool for continual deviation control of a slant hole.
井下稳定器安放位置调节器是斜井旋转钻井时实施井斜连续控制的专用工具，安装在钻头与钻铤之间。
The on-site tests of 5 wells showed that the stiffness of lower drill pipe assembly was increased to control deviation in the straight hole.
经现场5口井试验表明，不弯曲钻铤能够起到增大下部钻具组合刚度，控制直井段井斜的作用；
Permissible deviation of bolt hole circle diameter on flange and permissible limited deviation of two adjacent holes on flange shall be less than 0.6mm.
法兰螺栓口中心圆的直径的容许偏差及法兰相邻两孔极限容许偏差的应小于0.6毫米。
Axial deviation is an unavoidable technical problem when drilling deep holes, and its rectification is an urgent task posed before the deep hole drilling professionals both domestic and overseas.
孔轴线偏斜是深孔加工中无法避免的技术难题，如何纠偏是国内外孔加工行业亟待解决的课题。
The borehole deviation correction technique with bottom hole assembly and its application in Xinjiang oil Well YX-1 were introduced.
介绍了井底钻具组合纠偏技术及其在新疆YX - 1油井中的应用。
The extended reach well has such characteristics as large horizontal displacement, great deviation Angle and long open hole interval.
大位移井具有长水平位移、大井斜角以及长裸眼段的特点。
Also it is difficult to control hole deviation.
因此，钻进效率低，回次进尺短，孔斜不易控制。
Stabilizer is not used or used seldom in gas drilling to ensure the downhole safety. At this time, bottom-hole assembly bends easily resulted in well deviation.
为保证井下安全，气体钻井常常不使用或少使用稳定器，此时钻具组合更易发生弯曲而引起井斜。
In oilfield experiment several different kinds of offset-axes bottom-hole assembly are applied in various formation and borehole size in order to study deviation controlling ability of it.
试验过程中，通过在不同地层、不同井眼尺寸条件下应用不同的偏轴钻具组合方式，研究偏轴钻具的防斜能力。
It also figures out that the wellbore stability of directional well in the West of Sichuan Basin will be much better than the straight hole with the increasing of the deviation and relative azimuth.
计算结果同时证明，如果在川西深层采用定向井钻井，其井壁稳定性将不会因为井斜角、相对方位角的变化而变差，且地层破裂压力会随井斜角和相对方位角的增加而大幅提高。
Formations were unconsolidated and hole deviation Angle was high, so it was difficult to recover cores from this well.
由于地层疏松，该井井斜角较大等造成取心难度大。
Due to complicated geology and high dip Angle, hole deviation is easy to take place in Qingxi area of Yu-men oilfield, it is the bottle-neck for improving penetration rate for a long period.
玉门油田青西区块地质情况复杂、地层倾角大、容易发生井斜，长期以来一直是提高钻井速度的一个瓶颈。
It also describes the new techniques and the results drilling tracing of deviation correction in the construction of the bottom of the plumb line hole. Finally, several views are out forward.
介绍了垂线孔孔底随钻跟踪定向纠偏新技术和施工效果，最后结合实例谈几点认识。
It also describes the new techniques and the results drilling tracing of deviation correction in the construction of the bottom of the plumb line hole. Finally, several views are out forward.
介绍了垂线孔孔底随钻跟踪定向纠偏新技术和施工效果，最后结合实例谈几点认识。
应用推荐