DRILL STEM ACCESSORIES

Pup joints

Any type of pub joints is made from the same material as our drill collars. All connections are phosphate coated to improve resistance to galling. Standard lengths are 5ft,10ft, 15ft, 20ft, and additional sizes are available upon request. Integral pub joints have the same properties in tensile, yield and torsion as compared with S-135 which has the same ID. All products are conform with API Specification.

Lift subs and lift plugs

Lift subs and lift plugs are manufactured to the same specifications used for drill collars.
(A) Lift plug plate diameter is approximately 2 Inches larger than drill collar diameter.

Lift subs can be ordered with top connection.

Lifting size for drill collar
No.	Nominal sizeD 0.08(1/32)mm(in)	Inside diameter d/mm	Connection of pin thread				Lifting end
No.	Nominal sizeD 0.08(1/32)mm(in)	Inside diameter d/mm	Thread type	Outside Diameter DP 1/32)mm(in)	Bevel Diameter DF/mm	Length of tong snap-in LPB/mm	Outside Diameter DB 0.08mm	Round angle radius of elevator shoulder end RSE 0/04mm	Length of tong snap-in LB/mm
1	73.0(2 7/8)	31.8	NC23	79.4(3 1/8)	76.2	250.0	111.1	4.8	100.0
2	73.0(2 7/8)	44.5	NC26(2 3/8)	88.9(3 1/2)	82.9		111.1
3	88.9(3 1/2)	54.0	NC31(2 7/8)	104.8(4 1/8)	100.4		127.0
4		50.8	NC35	120.7(4 3/4)	114.7
5		68.3	NC38(3 1/2)	127.0(5)	121.0
6	127.0(5)	71.4	NC44	152.4(6)	144.5		168.3	6.4
7		71.4	NC44	158.8(6 1/4)	149.2
8		82.6 95.3	NC46(4IF)	158.8(6 1/4)	150.0
9				165.1(6 1/2)	154.8
10				171.5(6 3/4)	159.5
11			NC50(4 1/2IF)	177.8(7)	164.7
12			NC50(4 1/2IF)	184.2(7 1/4)	169.5
13			NC56	196.8(7 3/4)	185.3	300.0
14			NC56	203.2(8)	190.1
15			6 5/8REG	209.6(8 1/4)	195.7
16			NC61	228.6(9)	212.7
17			7 5/8 REG	241.3(9 1/2)	223.8
18			NC70	247.7(9 3/4)	232.6
19			NC70	254.0(10)	237.3
20			NC77	279.4(11)	260.7