转换接头
转换接头在石油、***和地质钻井作业中起钻柱构件的转换连接作用，是连接上部钻具与下部钻具的主要工具之一，分钻柱转换接头和油管转换接头。A型(同径式)、B型（异径式）和C型（左旋式）。在钻井过程中，下部钻具的扣型与上部钻具的扣型连接不上，这就需要用转换接头来连接。
Cross-over Joint
Crossover joint acts for conversion and connection of drill stem component in petroleum ,natural gas and
geology drilling is used mainly for connecting of upper drill tools and lower drill tools during drilling
operati***. It is divided into drill string crossover joint and tubing crossover joint.There are A type (same
diameter)，B type (different diameter) and C type (levoform).
钻柱转换接头技术参数
Specification of Drill String Cross-over Joint
|
名称Denotation |
上部连接件 Upper Connection Part |
下部连接件 Lower ConnectionPart |
型 式 Type |
|
方钻杆转换接头 Kelly Cross-overJoint |
方 钻 杆 Kelly |
钻 杆 接 头 Drill pipe joint |
Ａ or B |
|
钻杆转换接头 Drill Pipe Joint |
钻 杆 接 头 Drill Pipe Joint |
钻 杆 接 头 Drill Pipe Joint |
Ａ or B |
|
过渡转换接头 Crossover Joint |
方 钻 杆 Kelly |
钻 铤 Drill Collar |
Ａ or B |
|
钻铤转换接头 Drill CollarJoint |
钻 铤 Drill Collar |
钻 铤 Drill Collar |
Ａ or B |
|
钻头转换接头 Bit Joint |
钻 铤 Drill Collar |
钻 头 Bit |
Ａ or B |
|
水龙头转换接头 Swivel Joint |
水龙头下接头 Swivel Lower Joint |
方 钻 杆 Kelly |
C |
|
打捞用转换接头 Fish Joint |
方 钻 杆 Kelly |
钻 杆 接 头Drill Pipe Joint |
C |
|
钻 杆 接 头Drill Pipe Joint |
打捞工具 Fishing Tool |
C |
油管转换接头技术参数
Specification of Tubing Cross- Joint
|
外 螺 纹 External Thread |
内 螺 纹 Internal Thread |
||||||||
|
螺纹代号 Thread Code Name |
锥 度 Tapering |
大端直径 Large End Diameter （mm） |
小端 直径 ***all End Diameter （mm） |
内径 I.D. (mm) |
螺 纹 代 号 Thread Code Name |
锥 度 Tapering |
大端直径 Large End Diameter （mm） |
小端直径 ***all End Diameter (mm) |
内径 I.D. (mm) |
|
1.900TBG |
1：16 |
48.3 |
47 |
40.3 |
1.900TBG |
1：16 |
55.9 |
66.1 |
49.9 |
|
2-3/8TBG |
1：16 |
60.3 |
59 |
40.3 |
2-3/8TBG |
1：16 |
73.0 |
58.1 |
61.9 |
|
2-7/8TBG |
1：16 |
73 |
70 |
62 |
2-7/8TBG |
1：16 |
88.9 |
70.8 |
74.6 |
|
3-1/2TBG |
1：16 |
88.9 |
86 |
76 |
3-1/2TBG |
1：16 |
108.0 |
86.7 |
90.5 |
|
4TBG |
1：16 |
101.6 |
98 |
88 |
4TBG |
1：16 |
120.6 |
98.5 |
103.2 |
|
4-1/2TBG |
1：16 |
114.3 |
111 |
100.3 |
4-1/2TBG |
1：16 |
132.1 |
111.2 |
115.9 |
|
4-1/2BCSG |
1：16 |
114.7 |
112 |
100 |
1.900UPTBG |
1：16 |
63.5 |
51.0 |
54.8 |
|
1.900UPTBG |
1：16 |
53.2 |
51 |
40.3 |
2-3/8UPTBG |
1：16 |
77.8 |
62.8 |
67.5 |
|
2-3/8UPTBG |
1：16 |
65.9 |
64 |
50.3 |
2-7/8UPTBG |
1：16 |
93.2 |
75.5 |
80.2 |
|
2-7/8UPTBG |
1：16 |
78.6 |
76 |
62 |
3-1/2UPTBG |
1：16 |
114.3 |
92.2 |
96.9 |
|
3-1/2UPTBG |
1：16 |
95.2 |
92 |
75.9 |
4UPTBG |
1：16 |
127.0 |
104.9 |
109.6 |
|
4UPTBG |
1：16 |
108.0 |
104 |
88.6 |
4-1/2UPTBG |
1：16 |
141.3 |
117.6 |
122.3 |
|
4-1/2UPTBG |
1：16 |
120.6 |
117 |
100.3 |
|
|
|
|
|