Making trajectory of borehole as far as possible to achieve ideal condition an preventing the phenomenon of dogleg .
可在钻进过程中起到修整井壁的作用，使井眼轨迹尽量达到理想状态，防止出现狗腿现象。
The basic method and features of coal seam permeability by using borehole flow method inversion is studied, the basic condition of coal seam permeability inversion in determined.
研究了钻孔流量法反演煤层透气性的基本方法和特点，确定了煤层透气性反演的基本条件。
Based on comparison of acoustic data logged in different conditions of cementation, casing and borehole, the applicable condition and limitation of through-casing acoustic logging are summarized.
对比了在不同水泥胶结质量、套管状况和井眼条件下的套管井与裸眼井声波测井资料，归纳出了过套管声波测井的使用条件和局限性。
The measurements, delivered via LWD, also eliminate costly wireline conveyance runs and capture data immediately after drilling when the borehole is in the best condition.
通过LWD进行数据测量，可以避免使用昂贵的电缆测井，可以在井眼刚钻完还处在最佳状态时立刻获取第一手数据。
The condition in which cement flows in a channel only on some sides of the casing or borehole annulus, and thus does not provide adequate hydraulic isolation in all radial azimuths.
水泥只在套管或井眼环形空间的某一面的通道内流动的现象，因而不能在所有的径向上提供充分的水力隔离层。
Oilfield is mined under the condition of function of edge-bottom water, when there is often crowded cement content, and through sealing borehole realize to seal high aquifer.
油田在边底水作用的条件下开采，作业时往往具有挤水泥措施内容，通过封堵炮眼实现封堵高含水层段。
Oilfield is mined under the condition of function of edge-bottom water, when there is often crowded cement content, and through sealing borehole realize to seal high aquifer.
油田在边底水作用的条件下开采，作业时往往具有挤水泥措施内容，通过封堵炮眼实现封堵高含水层段。
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