关于偏斜楔改变钻孔θ,α值的讨论

• 作 者: 刘励慎
• 机 构: 地质矿产部勘探技术研究所,
• 出 处: 地质与勘探
• 发表日期: 1986年03期
• 关键词: 斜楔 α值 定向孔 孔内事故 需要与可能 钻探工程 安装角 定向钻孔 楔体 纠斜

偏斜楔已使用多年,至今仍是国内外钻探工程施工定向钻孔,纠正钻孔顶角(θ)和方位角(α),绕过孔内事故钻具,补采矿心等有效的偏斜器具。由于受多种因素的影响,偏斜楔的偏斜范围有一定的限度,使用时应考虑到需要与可能。本文着重讨论与钻孔θ,α值有关的楔体自身的某些因素。问题的提出某队施工的一个初级定向孔,设计孔深500

Deflection wedges have been used for many years and are still the directional drilling holes in drilling engineering at home and abroad so as to correct the effective angle of attack (θ) and azimuth (α) appliance. Due to a variety of factors, deflection wedge deflection range has a certain limit, the use should take into account the needs and possibilities. This article focuses on some of the factors of the wedge itself associated with drilling θ, α values. The question proposed a team construction of a primary directional hole, the design hole depth 500