The author puts forward a method of comprehensive index to evaluate the technical and economical effectiveness of a diamond whipstock bit .

同时，对 造 斜钻头技术经济效果，提出了综合指标指数的评价方法。

This paper introduces the technology and processes of directional branch hole with LZ continuous whipstock in complex easily inclined stratigraphic .

主要介绍了用LZ型连续 造 斜 器在易斜地层 施工定向分支钻孔的技术和工艺。

According to the design demand for straightening device in whipstock of radial horizontal drilling the principles for design of the device are suggested .

根据径向水平钻井 井 下斜向器 校直机构的设计要求，提出了 具体的设计原则。

Analysis on simulation for the slide-way designing of URRS ' whipstock

径向 井 造 斜器 滑道设计的仿真分析

A key tool of drilling multilateral horizontal well is retrievable whipstock .

钻多分枝水平井的关键工具是可回收式 斜 向 器。

Regarding drill pipes with the same diameter if the thin wall thickness drill pipe can pass whipstock slide safely the thick drill pipe certainly can pass through the same whipstock .

对于相同的直径的钻管，如果壁厚小的钻管能够安全稳定的通过 转向 器 滑道，壁厚 大的钻管则一定能够通过同样的转向器滑道。

Bottom-trip casing whipstock The container for the filter was moved or deleted . Please pick another container .

筛选器容器已被移动或删除。请选取其他容器。

Application Research on Ultra-short Radius Horizontal Drilling Head and Whipstock

超短半径水平孔钻具及 导向 器的应用研究

A design method of straightening device in whipstock for radial horizontal drilling by BP neural network

径向水平井 校直器的BP设计法

Decreasing the resistance of whipstock to the coiled tubing in order to increase the horizontal footage .

减小 转向 器对 钢质 柔性 钻杆的阻力，以增大 径向水平进尺；

In the light of the shortcomings of the existing whipstock in ultrashort radius radial system the design idea for a new underreaming whipstock is put forward .

针对现有超短半径径向 水平 钻井 技术 转向 器存在 扩孔直径大、成本高的问题，提出新型欠扩孔转向系统的设计方案。