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钻具提升短节是石油、天然气和地质勘探钻井工种中提升钻具的专用工具。整体式结构的提升短节，分 a ,b，两种，如图所示。a 型是18度台肩，b 型为90度台肩。使用时可根据吊卡的结构型式选择a 型 或b 型提升短节。所有螺纹符合API 标准。
is the special tools for lifting of the drilltools in petroleum ,natural gas industry and geologic exploration.The drill tool lifting sub is divided into a or b type structure.The a type has 18 degree shoulder,the b type has 90degree shoulder.The lifting sub can be selected according to elevator’s structure. The integral lifting subs are made of high strength alloy steel. All connections are complied with API standard.
技术规格及参数
| 序号 |
公称尺寸
mm |
内径
mm |
外螺纹接头 |
提升端 |
| 螺纹类型 |
外径
mm |
倒角直径
DF/mm |
大钳咬合长度
LPB/mm |
外径
mm |
大钳咬合长度
LPB/mm |
| 1 |
73 |
31.8 |
NC23 |
79.4 |
76.2 |
250 |
111.1 |
100 |
| 2 |
44.5 |
NC26 |
88.9 |
82.9 |
| 3 |
89 |
54 |
NC31 |
104.8 |
100.4 |
127 |
| 4 |
50.8 |
NC35 |
120.7 |
114.7 |
| 5 |
68.3 |
NC38 |
127 |
121 |
| 6 |
127 |
71.4 |
NC44 |
152.4 |
144.5 |
168.3 |
| 7 |
158.8 |
149.2 |
| 8 |
82.6 |
NC46 |
158.8 |
150 |
| 9 |
165.1 |
154.8 |
| 10 |
171.5 |
159.5 |
| 11 |
NC50 |
177.8 |
164.7 |
| 12 |
184.2 |
169.5 |
| 13 |
NC56 |
196.8 |
185.3 |
300 |
| 203.2 |
190.1 |
| 14 |
| 15 |
95.3 |
6 5/8 REG |
209.6 |
195.7 |
| 16 |
NC61 |
228.6 |
212.7 |
| 17 |
7 5/8 REG |
241.3 |
223.8 |
| 18 |
NC70 |
247.7 |
232.6 |
| 19 |
254 |
237.3 |
| 20 |
NC77 |
279.4 |
260.7 |
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