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Introduction
钻具稳定器按结构分为四种基本结构形式:
(1)有整体螺旋稳定器; 整体三螺旋、四螺旋稳定器分为井底型和钻柱型,其工作表面的耐磨材料(即扶正面)有常用表面镶嵌硬质合金柱、有表面镶嵌金钢石复合体、有堆焊耐磨焊条、还有低温钎焊硬质合金条等多种形式。
(2)整体直棱稳定器;
(3)滚轮式稳定器;
(4)可换套螺旋稳定器。
稳定器工作表面的耐磨材料有4种:
(1)表面镶嵌硬质合金柱;
(2) 表面镶嵌金刚柱复合体;
(3)表面低温钎焊硬质合金块;
(4)表面堆焊耐磨焊条。
Parameter
钻头直径 Bit Size |
两端本体直径 O.D. of body |
内径 I.D. |
长度 Length |
钻柱型螺纹类型 String type connections |
井底型螺纹类型 Near bit type connections |
|||
in |
mm |
mm |
mm |
mm |
上端 Top |
下端Down |
上端 Top |
下端Down |
6 |
152.2 |
121.0 |
51 |
1200 |
NC38 |
NC38 |
NC38 |
3 1/2REG |
6 1/4 |
158.7 |
121.0 |
51 |
1200 |
NC38 |
NC38 |
NC38 |
3 1/2REG |
6 1/2 |
165.1 |
121.0 |
51 |
1200 |
NC38 |
NC38 |
NC38 |
3 1/2REG |
7 1/2 |
190.5 |
159.0 |
57 |
1600 |
NC46 |
NC46 |
NC46 |
4 1/2REG |
7 7/8 |
200.0 |
159.0 |
57 |
1600 |
NC46 |
NC46 |
NC46 |
4 1/2REG |
8 3/8 |
212.7 |
165.0 |
71 |
1600 1800 |
NC46 NC50 |
NC46 NC50 |
NC46 NC50 |
4 1/2REG |
8 1/2 |
215.0 |
159.0 165.0 178.0 |
71 |
1600 1800 |
NC46 NC50 |
NC46 NC50 |
NC46 NC50 |
4 1/2REG |
8 3/4 |
222.2 |
159.0 165.0 178.0 |
71 |
1600 1800 |
NC46 NC50 |
NC46 NC50 |
NC46 NC50 |
4 1/2REG |
9 1/2 |
241.3 |
178.0 197.0 |
71 |
1600 1800 |
NC50 |
NC50 |
NC50 |
4 1/2REG |
9 5/8 |
244.3 |
178.0 197.0 |
71 |
1800 |
NC50 |
NC50 |
NC50 |
6 5/8REG |
9 7/8 |
250.8 |
178.0 197.0 |
7 |
1800 |
NC50 |
NC50 |
NC50 |
6 5/8REG |
12 1/4 |
311.2 |
203.0 209.0 |
76 |
1800 |
NC56 6 5/8REG |
NC56 6 5/8REG |
NC56 6 5/8REG |
6 5/8REG |
16 |
406.0 |
229.0 241.3 |
76 |
2000 2200 |
NC61 7 5/8REG |
NC61 7 5/8REG |
NC61 7 5/8REG |
NC61 7 5/8REG |
17 1/2 |
444.5 |
229.0 241.3 |
76 |
2000 2200 |
NC61 7 5/8REG |
NC61 7 5/8REG |
NC61 7 5/8REG |
NC61 7 5/8REG |
24 |
609.5 |
229.0 241.3 |
76 |
2200 2540 |
NC61 7 5/8REG |
NC61 7 5/8REG |
NC61 7 5/8REG |
NC61 7 5/8REG |
26 |
666.4 |
229.0 241.3 |
76 |
2200 2540 |
NC61 7 5/8REG |
NC61 7 5/8REG |
NC61 7 5/8REG |
NC61 7 5/8REG |
28 |
711.2 |
241.3 254.0 |
76 |
2200 2540 |
NC61 7 5/8REG |
NC61 7 5/8REG |
NC61 7 5/8REG |
NC61 7 5/8REG |