Standard and spiral drill collar

Drill Collar is the basic component in the BHA which provides weight on the bit for drilling and keeps the drill string in tension.

Description
Inquiry

ShineNor Drill Collar is manufactured from 4145H modified quenched and tempered steel,strict metallurgical specifications are followed to insure that full length heat treating produces a consistent maximum depth of hardness.

Specification

Number and Connection Table	Outside Diameter	Inside Diameter	Length mm	Bevel Diunstor mm	Bending Strongth Ratio
Number and Connection Table	mm in	mm in	Length mm	Bevel Diunstor mm	Bending Strongth Ratio
NC23-31	79.4 3 1/8	31.8 1 1/2	9150	76.2	2.57:1
NC26-35(2 3/8 1F)	88.9 3 1/2	38.1 1 1/2	9150	82.9	2.42:1
NC31-41(27/8 IF)	104.8 4 1/8	50.8 2	9150	100.4	2.43:1
NC35-47	120.6 4 3/4	50.8 2	9150	114.7	2.58:1
NC38-50(31/2IF)	127 5	57.2 2 1/4	9150	121	2.38:1
NC44-60	152.4 6	57.2 2 1/4	9150 or 9450	144.5	2.49:1
NC44-60	152.4 6	71.4 2 13/16	9150 or 9450	144.5	2.84:1
NC44-62	158.8 6 1/4	57.2 2 1/4	9150 or 9450	149.2	2.91:1
NC46-62(4IF)	158.8 6 1/2	71.4 2 13/16	9150 or 9450	150	2.63:1
NC46-65(4IF)	165.1 6 1/2	57.2 2 1/4	9150 or 9450	154.8	2.76:1
NC46-65(4IF)	165.1 6 1/2	71.4 2 13/16	9150 or 9450	154.8	3.05:1
NC46-67(4IF)	171.4 6 3/4	57.2 2 1/4	9150 or 9450	159.5	3.18:1
NC50-67(41/2IF)	171.4 6 3/4	71.4 2 13/16	9150 or 9450	159.5	2.37:1
NC50-70(4 1/2IF)	177.8 7	57.2 2 1/4	9150 or 9450	164.7	2.54:1
NC50-70(4 1/2IF)	177.8 7	71.4 2 13/16	9150 or 9450	164.7	2.73:1
NC50-72(4 1/21F)	184.2 7 1/4	71.4 2 13/16	9150 or 9450	169.5	3.12:1
NC56-77	196.8 7 3/4	71.4 2 13/16	9150 or 9450	185.3	2.70:1
NC56-80	203.2 8	71.4 2 13/16	9150 or 9450	190.1	3.02:1
6 5/8REG	209.6 8 1/4	71.4 2 13/16	9150 or 9450	195.7	2.93:1
NC61-90	228.6 9	71.4 2 13/16	9150 or 9450	212.7	3.17:1
7 5/8 REG	241.3 9 1/2	76.2 3	9150 or 9450	223.8	2.81:1
NC70-97	247.6 9 3/4	76.2 3	9150 or 9450	232.6	2.57:1
NC70-100	254 10	76.2 3	9150 or 9450	237.3	2.81:1
85/8 REG	279.4 11	76.2 3	9150 or 9450	286.7	2.84:1
Slips and elevator grooves can be produced upon the customers' requirement.