JF型箭形止回阀
它是一种钻柱内防喷器。当有井喷的预兆,立刻卸开方钻杆将回压阀总成投入钻杆水眼内,开泵送下就位,就能达到防喷的目的。
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详细介绍
JF型箭形止回阀具有防止高压油气从钻具内喷出的功能,是一种重要的钻柱内防喷工具。
Model “JF” Arrow Back-Pressure Valve is a sort of pipe inside blowout preventer. It adopts arrow valve structure. It's directly connected to drill stem, and can prevent high-pressure oil stream from blowing out from drilling tool.
Specifications
|
型号 Model |
外径 O.D. mm (in.) |
水眼 I.D. mm (in.) |
总长 Length mm (in) |
接头扣型 Connection API |
|
JF86 |
86 (3 3/8) |
34 (1 5/16) |
400 (15.75) |
NC26 |
|
JF105 |
105 (4 1/8) |
45 (1 3/4) |
400 (15.75) |
NC31 |
|
JF121 |
121 (4 3/4) |
57 (2 1/4) |
500 (19.69) |
NC38 |
|
JF152 |
152 (6) |
74 (2 15/16) |
500 (19.69) |
NC46 |
|
JF162 |
162 (6 3/8) |
83 (3 1/4) |
550 (21.65) |
NC50 |
|
JF165 |
165(6 1/2) |
71(2.8) |
914(36) |
NC50 |
|
JF184 |
184 (7 1/4) |
83 (3 1/4) |
550 (21.65) |
5 1/2FH |
关键词:
高峰石油机械设备、油气钻采井下工具
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