HF435D
5刀翼中拋物線輪廓，非對(duì)稱刀翼布齒，水力平衡設(shè)計(jì)，并配有刀削限制塊，可有效防止在硬夾層中鉆壓過大造成切削齒破壞，可有效提高鉆頭壽命。適用于中軟地層，如：頁巖、泥砂巖、疏松砂巖等。
|
鉆頭尺寸(in) BIT SIZE(in) |
鉆頭參數(shù)SPECIFICATION | ||
|
噴嘴數(shù) (PC) NOZZLE (PC) |
保徑長(zhǎng)度(mm) GAGE LENGTH(mm) |
API 接頭(in) API CONNECTION(in) | |
|
7-7/8 |
5 |
50 |
4-1/2 |
|
8-1/2 |
5 |
60 |
4-1/2 |
|
12-1/4 |
7 |
90 |
6-5/8 |
|
推薦鉆井參數(shù)RECOMMENDED OPERRATION PARAMETERS | ||||
|
排量HYDRAULIC FLOWRATE |
轉(zhuǎn)速RITATION SPEED |
鉆壓WIGHT ON BIT | ||
|
(1/s) |
(gpm) |
(rpm) |
(KN) |
(Klbs) |
|
25-35 |
400-550 |
50-250 |
30-100 |
7-23 |
|
25-35 |
400-550 |
50-250 |
30-100 |
7-23 |
|
44-60 |
700-950 |
50-250 |
50-160 |
11-40 |
