钻柱转换接头
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钻柱转换接头
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钻柱转换接头
钻柱转换接头采用AISI4145H铬钼钢制造，执行API规范，可生产同径式、异径式和左旋式三种类型，可对螺纹进行冷滚压、镀铜或磷化处理。
● 转换接头种类
|
种类 Sort |
名称 Name |
上部连接杆 Top Connectio |
下部连接杆 Bottom Connection |
型式 Type |
|
1 |
方钻杆转换(保护)接头 Kelly saver sub |
方钻杆 Kelly |
钻杆 Drill pipe |
A型或B型 A or B |
|
2 |
钻杆转换接头 Tool joint |
钻杆 Drill pipe |
钻杆 Drill pipe |
A型或B型 A or B |
|
3 |
过渡转换接头 Crossover sub |
钻杆 Drill pipe |
钻铤 Drill collar |
A型或B型 A or B |
|
4 |
钻铤转换接头 Drill collar sub |
钻铤 Drill collar |
钻铤 Drill collar |
A型或B型 A or B |
|
5 |
钻头转换接头 Bit sub |
钻铤 Drill collar |
钻头 Bit |
A型或B型 A or B |
|
6 |
水龙头转换接头 Swivel sub |
水龙头下街头 Swivel bottom sub |
方钻杆 Kelly |
C型 |
|
7 |
打捞用转换接头 Junk sub |
方钻杆 Kelly |
钻杆 Drll pipe |
C型 |
|
钻杆 Drill pipe |
打捞工具 Fishing tool |
C型 |
注：转换接头连接的钻具，当其直径差大于15mm(水龙头转换接头和打捞转换接头除外)，在井深小于或等于2000m时，可以采用A型或B型转换接头，在井深大于2000m时，应采用B型转换接头。
● 转换接头的力学性能
|
外径尺寸 mm(in) |
抗拉强度σb Mpa Tensile strength |
屈服强度σ0.2 Mpa Yield strength |
伸长率84
Elongation |
冲击功AKV J Impact |
硬度 HB Brinell Hardnes |
|
79.4-175(31/8-67/8) |
≥965 |
≥760 |
≥13 |
≥54 |
≥285 |
|
178-254(7-10) |
≥930 |
≥690 |
≥277 |
连接钻杆的转换接头尺寸规格
|
钻杆 |
外径OD (DL，DM，DU) |
倒角直径Df |
内径ID |
钻杆接头代号 |
外螺纹接头与管 体的抗扭强度比 |
||||
|
工称尺寸 |
钢级 |
基本尺寸 |
极限偏差 |
基本尺寸 |
极限偏差 |
基本尺寸 |
极限偏差 |
||
|
60.3 |
E |
85.7 |
±0.8 |
83.0 |
±0.4 |
44.5 |
+0.4
-0.8 |
NC26-E(23/8IF-E) |
1.10 |
|
X |
NC26-X(23/8IF-X) |
0.87 |
|||||||
|
G |
NC26-G(23/81F-G) |
0.79 |
|||||||
|
73.0 |
E |
104.8 |
100.4 |
54.0 |
NC31-E(27/8IF-E) |
1.03 |
|||
|
X |
50.8 |
NC31-X(27/8IF-X) |
0.90 |
||||||
|
G |
NC31-G(27/8IF-G) |
0.82 |
|||||||
|
S |
111.1 |
41.3 |
NC31-S(27/BIF-5) |
0.82 |
|||||
|
88.9 |
E |
120.7 |
116.3 |
68.3 |
NC38-E(31/81F-E) |
0.98 |
|||
|
X |
127.0 |
65.1 |
NC38-X(31/8IF-X) |
0.87 |
|||||
|
G |
61.9 |
NC38-G(31/8IF-G) |
0.86 |
||||||
|
S |
54.0 |
NC3B-S(31/BIF-S) |
0.80 |
||||||
|
E |
65.1 |
NC38-E(31/8IF-E) |
0.97 |
||||||
|
X |
61.9 |
NC38-X(31/81F-X) |
0.83 |
||||||
|
G |
54.0 |
NC38-G(31/8IF-G) |
0.90 |
||||||
|
5135 |
139.7 |
127.4 |
57.2 |
NC40-G(4FH-G) |
0.87 |
||||
|
101.6 |
E |
152.4 |
±0.8 |
145.0 |
±0.4 |
82.6 |
+0.4
-0.8 |
NC46-E(4IF-E) |
1.23 |
|
X |
NC46-X(41F-X) |
0.97 |
|||||||
|
G |
NC46-G(4IF-G) |
0.88 |
|||||||
|
5 |
76.2 |
NC46-S(4IF-S) |
0.81 |
||||||
|
114.3 |
E |
168.3 |
154.0 |
95.3 |
NC50-E(41/2IF-E) |
1.23 |
|||
|
X |
NC50-X(41/2IF-X) |
0.97 |
|||||||
|
G |
NC50-G(41/2IF-G) |
0.88 |
|||||||
|
S |
88.9 |
NC50-S(41/2IF-S) |
0.81 |
||||||
|
E |
92.1 |
NC50-E(41/2IF-E) |
1.02 |
||||||
|
X |
88.9 |
NC50-X(41/2IF-X) |
0.96 |
||||||
|
G |
NC50-G(41/2IF-G) |
0.86 |
|||||||
|
S |
76.2 |
NC50-5(41/2IF-S) |
0.87 |
||||||
|
127.0 |
E |
168.3 |
±0.8 |
154.0 |
±0.4 |
95.3 |
+0.4
-0.8 |
NC50-E(41/2IF-E) |
0.92 |
|
X |
880 |
NC50-X(41/2IF-X) |
086 |
||||||
|
G |
82.6 |
NC50-G(41/2IF-G) |
0.89 |
||||||
|
S |
69.9 |
NC50-5(41/2IF-S) |
0.86 |
||||||
|
E |
88.9 |
NC50-E(41/21F-E) |
0.86 |
||||||
|
X |
76.2 |
NC50-X(41/2IF-X) |
0.86 |
||||||
|
G |
69.9 |
NC50-G(41/2IF-G) |
0.87 |
||||||
|
139.7 |
E |
177.8 |
170.7 |
95.3 |
51/2FH-E |
1.53 |
|||
|
X |
51/2FH-X |
1.21 |
|||||||
|
G |
51/2FH-G |
1.09 |
|||||||
|
S |
184.2 |
88.9 |
51/2FH-S |
0.98 |
|||||
|
E |
177.8 |
51/2FH-E |
1.21 |
||||||
|
X |
51/2FH-X |
0.95 |
|||||||
|
G |
184.2 |
51/2FH-G |
0.99 |
||||||
|
S |
82.6 |
51/2FH-S |
0.83 |
||||||
连接钻铤的转换接头尺寸规格
|
外径OD(DL，DM) |
倒角直径DF |
内径ID |
钻铤代号 |
弯曲度比 |
|||
|
基本尺寸 |
极限偏差 |
基本尺寸 |
极限偏差 |
基本尺寸 |
极限偏差 |
||
|
79.4 |
+1.2 0 |
76.2 |
±0.4 |
31.8 |
+1.6 0 |
ZTNC23-31 |
2.57:1 |
|
88.9 |
82.9 |
38.1 |
ZTNC26-35(23/8IF) |
2.42:1 |
|||
|
104.8 |
+1.6 0 |
100.4 |
50.8 |
ZTNC31-41(27/8IF) |
2.43:1 |
||
|
120.7 |
+2.0 0 |
114.7 |
ZTNC35-47 |
2.58:1 |
|||
|
127.0 |
121.0 |
57.2 |
ZTNC38-50(31/21F) |
2.38:1 |
|||
|
152.4 |
+3.2 0 |
144.5 |
ZTNC44-60 |
2.49:1 |
|||
|
71.4 |
|||||||
|
158.8 |
149.2 |
57.2 |
ZTNC44-62 |
2.84:1 |
|||
|
150.0 |
71.4 |
ZTNC46-65(4IF) |
2.91:1 |
||||
|
165.1 |
154.8 |
57.2 |
ZTNC46-65(4IF) |
2.63:1 |
|||
|
71.4 |
|||||||
|
171.4 |
+4.0 0 |
159.5 |
57.2 |
ZTNC46-67(4IF) |
2.76:1 |
||
|
177.3 |
164.7 |
ZTNC50-67(41/2IF) |
3.05:1 |
||||
|
71.4 |
|||||||
|
184.2 |
169.5 |
ZTNC50-72(41/2IF) |
3.18:1 |
||||
|
196.9 |
185.3 |
ZTNC56-77 |
2.70:1 |
||||
|
203.2 |
190.1 |
ZTNC56-80 |
3.02:1 |
||||
|
209.4 |
195.7 |
ZT65/8REG-82 |
2.93:1 |
||||
|
228.6 |
+4.8 0 |
212.7 |
ZTNC61-90 |
3.17:1 |
|||
|
241.3 |
223.8 |
76.2 |
ZT75/8REG-95 |
2.81:1 |
|||
|
247.6 |
+6.4 0 |
232.6 |
ZTNC70-97 |
2.57:1 |
|||
|
254.0 |
237.3 |
ZTNC70-100 |
2.81:1 |
||||
|
279.4 |
266.7 |
ZTNC77-110 |
2.84:1 |
||||
注：钴铤代号按SY/T5144的规定执行。
连接方钻杆和水龙头的转换接头尺寸规格
|
外径DU |
倒角直径DF |
螺纹代号 |
|||||
|
基本尺寸 |
极限偏差 |
基本尺寸 |
极限偏差 |
标准 |
选择 |
||
|
标准 |
选择 |
标准 |
选择 |
||||
|
196.8 |
146.0 |
±0.8 |
186.1 |
134.5 |
±0.4 |
6 5/8 REG |
4 1/2 REG |
|
196.8 |
146.0 |
±0.8 |
186.1 |
134.5 |
±0.4 |
6 5/8 REG |
4 1/2 REG |
|
方钻杆下端 |
内径ID |
方钻杆类型 |
方钻杆规格 |
|||||
|
外径DLR |
倒角直径DF |
螺纹代号 |
||||||
|
基本尺寸 |
极限偏差 |
基本尺寸 |
极限偏差 |
基本尺寸 |
极限偏差 |
|||
|
85.7 |
±0.8 |
82.9 |
±0.4 |
NC26(2 3/8IF) |
31.8 |
+1.60 |
四方钻杆 |
2 1/3 |
|
104.8 |
100.4 |
NC31(2 7/8IF) |
4.4 |
3 |
||||
|
120.6 |
116.3 |
NC38(3 1/2IF) |
57.2 |
3 1/2 |
||||
|
158.8 |
145.3 |
NC46(4IF) |
71.4 |
4 1/2 |
||||
|
161.9 |
150.4 |
Nc50(4 1/2IF) |
||||||
|
177.8 |
170.7 |
5 1/2FH) |
82.6 |
5 1/2 |
||||
|
171.0 |
NC56 |
|||||||
|
85.7 |
±0.8 |
82.9 |
±0.4 |
NC26(2 3/8IF) |
38.1 |
+1.60 |
六方钻杆 |
3 |
|
104.8 |
100.4 |
NC31(2 7/8IF) |
44.4 |
3 1/2 |
||||
|
120.6 |
116.3 |
NC38(3 1/2IF) |
57.2 |
4 1/2 |
||||
|
158.8 |
145.3 |
NC46(4IF) |
76.2 |
5 1/2 |
||||
|
161.9 |
150.4 |
NC50(4 1/2IF) |
82.6 |
|||||
|
177.8 |
170.7 |
5 1/2FH) |
88.9 |
6 |
||||
|
171.0 |
NC56 |
|||||||
连接钻头的转换接头倒角直径
|
倒角直径DF |
转换接头螺纹代号 |
|
|
基本尺寸 |
极限偏差 |
|
|
77.4 |
±0.4 |
2 3/8REG |
|
91.7 |
2 7/8REG |
|
|
104.4 |
3 1/2REG |
|
|
135.3 |
4 1/2REG |
|
|
165.1 |
5 1/2REG |
|
|
186.9 |
6 5/8REG |
|
|
215.1 |
7 5/8REG |
|
|
242.5 |
8 5/8REG |
|
表面粗糙度
|
外螺纹台肩面 |
内螺纹台肩面 |
螺纹工作面 |
螺纹牙顶面 |
|
Ra≤3.2 |
Ra≤3.2 |
Ra≤6.3 |
Ra≤12.5 |
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