孔底钻具

孔底钻具Tag内容描述：<p>1、第 2 6卷第 3期 2 0 1 0年 6月 有色矿冶 N0N F ERROUS M I NI NG AND M ETALLURGY Vo 1 2 6 3 J u n e 2 0 1 0 文章编号： l O O 79 6 7 x( 2 O l O ) 0 3一 o o 1 6 0 4 分压式孑 L 底局部反循 环钻具设计 林立 ， 张明科 ， 王胜奎 ( 沈阳地球物理勘察院 ， 辽宁 沈 阳 1 1 0 1 2 1 ) 摘 要： 在破碎地层中进行金刚石钻探 ， 普遍存在有岩芯采取率不足的问题。本文通过对普通单 动双管钻具的分水接头、 卡簧、 卡簧座、 及钻头水路的改进， 从而改变钻具内外环空间隙， 强迫冲洗液在孔底形成分流， 造成孔底局部反循环。利用内循环冲洗。</p><p>2、1 of of a of a of a a to of to by in of is of of at in at to to to of a to of by to 2, of to is to a of to 3, to is to of to be 2, a is to of to of of to or As DD to of a in to to of to DD 2 of of in to of be in of a to of of is to of To of of to of in to In a of in in of by to a a of to of of is an In be to a to or of In to to on of be in of is to in of to is of in of of to in no of a of on of 3 of to 2, (1) to It is in of (2) a) to (b) as to In (3) to 4 (4) to of to , to (1) to。</p><p>3、1 Horizontal Directional Drill Hole Drill end of the study and application of a drill hole end of a composition and function. Construction of drill hole orientation : drill pipe, a launcher tube and a guide to accommodate bit. Construction of drill hole orientation with drilling, to change, through magnetic and drilling fluid delivery functions. Coordinated by computer control, in strict accordance with the design of the track has been completed oriented hole. Drilling is dri。</p><p>4、1 of of a of a of a a to of to by in of is of of at in at to to to of a to of by to 2, of to is to a of to 3, to is to of to be 2, a is to of to of of to or As DD to of a in to to of to DD 2 of of in to of be in of a to of of is to of To of of to of in to In a of in in of by to a a of to of of is an In be to a to or of In to to on of be in of is to in of to is of in of of to in no of a of on of 3 of to 2, (1) to It is in of (2) a) to (b) as to In (3) to (4) to of to , to (1) to 30。</p><p>5、目 录第 1章 前言 1第 2章 概述 3第 3章 设计中要考虑的问题和方案 4第 4章 行星齿轮设计 84.1 行星齿轮的特点 84.2 行星齿轮的设计计算 94.3 行星齿轮均载装置 18第 5章 钻杆齿轮设计 20第 6章 钻杆回转驱动齿轮设计 22第 7章 钻具的设计 24第 8章 主钻头的设计 27第 9章 主轴的设计 299.1 主轴的结构设计 299.2 主轴的校核。</p><p>6、目 录第 1章 前言 1第 2章 概述 3第 3章 设计中要考虑的问题和方案 4第 4章 行星齿轮设计 84.1 行星齿轮的特点 84.2 行星齿轮的设计计算 94.3 行星齿轮均载装置 18第 5章 钻杆齿轮设计 20第 6章 钻杆回转驱动齿轮设计 22第 7章 钻具的设计 24第 8章 主钻头的设计 27第 9章 主轴的设计 299.1 主轴的结构设计 299.2 主轴的校核。</p>