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定向钻井已经发展了几十年,所使用的工具和设备在不断更新变化,相关技术也在不断提高;设备由单点测斜到有线随钻、MWD、再到旋转导向,抛面由两维到三维;大位移井、水平井、分支井。但目前为止陕北地区仍在使用各油田早已淘汰的单点测斜技术进行定向施工,因陕北地区目的层较浅,故仍有其市场和生存空间。其特点简单方便、成本低、灵活省时。本文介绍了定向钻井技术。
Directional drilling has been developed for decades and the tools and equipment used are continually updated and relevant technologies are continually being improved; equipment ranging from single-point inclinometer to wired MWD, to rotary steering, with two-dimensional To three-dimensional; large displacement wells, horizontal wells, branch wells. However, up to now, the single-point inclinometer technology that has been phased out by each oilfield is still being used for directional construction in northern Shaanxi. Due to the shallow destination layer in northern Shaanxi, it still has its market and living space. Its characteristics are simple and convenient, low cost, flexible and time-saving. This article describes directional drilling technology.