The problem of sucker rod string lagging in oil slant hole has seriously restricted normal production.

稠油斜直井抽油杆柱滞后的问题严重制约正常生产.

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The design of well trajectory is very import of which effect the output and economical benefit.

井迹控制问题是非直井钻井技术的核心,它直接影响了井的产量和经济效益.

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An ordinary horizontal well consists of vertical section, curve section and horizontal section.

普通水平井轨迹由三部分组成:直井段, 造斜段,水平段.

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The calculation result is in accordance with the productivity formula for deflecting wells of F . S . U.

与前苏联斜直井产能公式相比较,计算结果一致.

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The technique uses vertical wells as water injection well, horizontal wells as production well.

该技术以直井作为注水井, 水平井为生产井,采用井位交错排列的线性注水方式.

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The fault occurring probability of system of directional wells is higher than that of straight wells.

定向井和水平井的井下装置发生故障的可能性比直井要大得多.

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Deviation control is one of the key problems of drilling a vertical well.

直井防斜打直是钻井现场经常碰到的技术难题之一.

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