安全接头
安全接头是一种专用接头,适用于井下事故处理,也适用于钻井、取芯和中途测试。分H型、J型和AJ型安全接头
Safety Joint
Safety joint is a specialized joint. It is used to handle downhole accident and used to be mid—way test of drilling and coring. Safety joints are divided into type H、type J and type AJ.
● H型安全接头是一种井下安全装置,可以装接在井下管柱所需要的部位。该工具可联接在作业管柱上传递扭矩,承受拉、压负荷。在作业管柱遇卡时,安全接头可首先脱开,将安全接头以上管柱起出,可减化作业程序,提高作业郊率, 广泛用于打捞,套铣和测试等作业中。
H Type Safety Joint is a essential safety tool for connecting the pipes in the well. The tool can be
connected string on the job transfer torque to bear tension and compression load. Column in case
of card operati***, the safety joint can be torn off and the first will be safe from a connecting string above.
H Type Safety Joint can simplify operati***, improve operating rural rate and be widely used in fishing,
washover and testing work, etc.
●AJ型安全接头是连接在井内管柱上的一种安全工具,其本体采用宽锯齿螺纹或特殊梯形螺纹连接,用于钻井、打捞、洗井、修井和测试作业。它适用于井下事故处理,也适用于钻进和取芯的中途测试。将它连接于所用钻柱的需要部位,保护钻柱,不影响钻具正常工作。一旦在井下工具被卡可借助于安全接头退出卸开卡点以上的钻柱,再次下钻时还可对接。AJ型安全接头分正扣和反扣两种,这两种安全接头除螺纹旋向相反外,其它部件及规格都完全相同。
AJ Type Safety Joint is an essential safety tool for connecting the pipes in the well. The body adopts wide
buttress thread or special trapezoidal thread connection, which is used to drill, fish, wash well, workover
and test operation, etc. It is used to treat well accident and used to be mid-way test of drilling and coring. It is connected to the drilling stem needed position to protect drilling stem
and h***e not an effect on drilling tool. Once down hole tool is strike, it can be withdrawn and disassembled
drilling stem above stuck point with the help of safety joint. When drilling again, it can be connected.
Model AJ safety joint has two kinds of right-hand thread and left-hand thread. Other parts and specificati*** of two kinds of safety joints are the same expect screw rotary
direction opposition..
H型 安全接头规格型号Specification of H Type H Safety joint
型号Type |
外径(mm)O.D |
内径(mm)I.D |
螺纹Connection |
HAJ89 |
89 |
15 |
NC26 |
HAJ95 |
95 |
20 |
NC26 |
HAJ105 |
105 |
30 |
NC31 |
HAJ121 |
121 |
38 |
NC38 |
HAJ159 |
159 |
50 |
N***6、NC50 |
HAJ165 |
165 |
50 |
N***6、NC50 |
HAJ178 |
178 |
57 |
NC50、5 1/2FH |
HAJ203 |
203 |
71.4 |
6 5/8 REG |
AJ型安全接头规格型号Specification of Type AJ Safety Joint
型号Type |
外径(mm)O.D |
内径(mm)I.D |
螺纹Connection |
AJ-C86 |
86 |
38 |
NC26 |
AJ-C95 |
95 |
44 |
NC26 |
AJ-C105 |
105 |
51 |
NC31、2 7/8NU、2 7/8EUE |
AJ-C121 |
121 |
57 |
NC38 |
AJ-C159 |
159 |
71.4 |
N***6、NC50 |
AJ-C165 |
165 |
71.4 |
NC50 |
AJ-C178 |
178 |
71.4 |
NC50、5 1/2FH |
AJ-C203 |
203 |
76 |
6 5/8REG |
AJ-C228 |
228 |
76 |
7 5/8REG |