HF435D
5刀翼中抛物线轮廓,非对称刀翼布齿,水力平衡设计,并配有刀削限制块,可有效防止在硬夹层中钻压过大造成切削齿破坏,可有效提高钻头寿命。适用于中软地层,如:页岩、泥砂岩、疏松砂岩等。
钻头尺寸(in) BIT SIZE(in) |
钻头参数SPECIFICATION | ||
喷嘴数 (PC) NOZZLE (PC) |
保径长度(mm) GAGE LENGTH(mm) |
API 接头(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 |
推荐钻井参数RECOMMENDED OPERRATION PARAMETERS | ||||
排量HYDRAULIC FLOWRATE |
转速RITATION SPEED |
钻压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 |