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SD型钻杆卡瓦,按卡瓦牙与钻杆的按触长度 分为短型(SDS)、中 型(SDML)和加长型(SDXL) , SDS用于浅 井、SDML适用于中深 井、SDXL适用于深井，产品按API Spec 7K《钻井和修井设备规范》要求设计、制造。
|
型号 |
卡瓦体尺寸 |
钻杆外径 DP OD. |
重量 |
|||
|
in |
mm |
kg |
lb |
|||
|
SDS |
3 1/2 |
2 3/8 |
2 3/8 |
60.3 |
53.1 |
117 |
|
2 7/8 |
2 7/8 |
73 |
503 |
111 |
||
|
3 1/2 |
3 1/2 |
88.9 |
485 |
107 |
||
|
4 1/2 |
3 1/2 |
3 1/2 |
88.9 |
64.9 |
143 |
|
|
4 |
4 |
101.6 |
61.7 |
136 |
||
|
4 1/2 |
4 1/2 |
114.3 |
57.6 |
127 |
||
|
SDML |
3 1/2 |
2 3/8 |
2 3/8 |
60.3 |
87.5 |
193 |
|
2 7/8 |
2 7/8 |
73 |
85.3 |
188 |
||
|
3 1/2 |
3 1/2 |
88.9 |
81.6 |
180 |
||
|
4 1/2 |
3 1/2 |
3 1/2 |
88.9 |
94 |
207 |
|
|
4 |
4 |
101.6 |
90.3 |
199 |
||
|
4 1/2 |
4 1/2 |
114.3 |
85.3 |
188 |
||
|
5 |
4 |
4 |
101.6 |
92.5 |
204 |
|
|
4 1/2 |
4 1/2 |
114.3 |
88.9 |
106 |
||
|
5 |
5 |
127 |
84 |
185 |
||
|
5 1/2 |
4 1/2 |
4 1/2 |
114.3 |
101 |
223 |
|
|
5 |
5 |
127 |
97 |
214 |
||
|
5 1/2 |
5 1/2 |
139.7 |
92 |
203 |
||
|
SDXL |
4 1/2 |
3 1/2 |
3 1/2 |
88.9 |
103.9 |
229 |
|
4 |
4 |
101.6 |
99.3 |
219 |
||
|
4 1/2 |
4 1/2 |
114.3 |
93 |
205 |
||
|
5 |
4 |
4 |
101.6 |
107.5 |
237 |
|
|
4 1/2 |
4 1/2 |
114.3 |
103 |
227 |
||
|
5 |
5 |
127 |
96.6 |
213 |
||
|
5 1/2 |
4 1/2 |
4 1/2 |
114.3 |
116 |
256 |
|
|
5 |
5 |
127 |
111 |
245 |
||
|
5 1/2 |
5 1/2 |
139.7 |
112 |
247 |
||
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