ORCHID ENERGY-Non-magnetic Drill Collar

NON-MAGNETIC DRILL COLLAR

TECHNICAL SUMMARY

Non-Magnetic Drill Collar (NMDC) is specialized tools extensively employed in the oil and gas industry to facilitate efficient drilling operations while minimizing magnetic interference. Orchid Energy can provide slick/spiral/flex/pony types of non-magnetic drill collar.
Constructed from low or non-magnetic alloys, such as stainless steel or non-magnetic steel composites, NMDCs offer a crucial solution to eliminate magnetic fields’ disruptive effects during drilling activities.
Orchid Energy Non Magnetic Drill Collar (NMDC) are made from low-carbon stainless steel as API specification and implementation of SY/T5144 standard, which can be cold thread rolling, machine special double shoulder thread and do as other specifications request. Non Magnetic Drill Collar are as a housing for MWD tools and also could provide weight for drill string.

NON-MAGNETIC DRILL COLLAR

SPIRAL NON-MAGNETIC DRILL COLLAR

SPECIFICATION1: NON-MAGNETIC DRILL COLLAR

Drill Collar Number	O.D.		I.D.		Length (mm)	DF Bevel Diameter	Ref bend Strength Ratio
Drill Collar Number	(mm)	(in)	(mm)	(in)	Length (mm)	DF Bevel Diameter	Ref bend Strength Ratio
NC23-31	79.4	3 1/8	31.8	1 1/2	9150	76.2	2.57:1
NC26-35(2 3/8IF)	88.9	3 1/2	38.1	1 1/2	9150	84.5	2.42:1
NC31-41(2 7/8IF)	104.8	4 1/8	50.8	2	9150	101.6	2.43:1
NC35-47	120.6	4 3/4	50.8	2	9150	114.7	2.58:1
NC38-50(3 1/2IF)	127.0	5	57.2	2 1/4	9150	121.0	2.38:1
NC44-60	152.4	6	57.2	2 1/4	9150&9450	144.5	2.49:1
NC44-60	152.4	6	71.4	2 13/16	9150&9450	144.5	2.84:1
NC44-62	158.8	6 1/4	57.2	2 1/4	9150&9450	149.2	2.91:1
NC46-62(4IF)	158.8	6 1/4	71.4	2 13/16	9150&9450	150.0	2.63:1
NC46-65(4IF)	165.1	6 1/2	57.2	2 1/4	9150&9450	154.8	2.76:1
NC46-65(4IF)	165.1	6 1/2	71.4	2 13/16	9150&9450	154.8	3.05:1
NC-46-47(4IF)	171.4	6 3/4	57.2	2 1/4	9150&9450	159.5	3.18:1
NC50-67(4 1/2IF)	171.4	6 3/4	71.4	2 13/16	9150&9450	159.5	2.37:1
NC50-70(4 1/2IF)	177.8	7	57.2	2 1/4	9150&9450	164.7	2.54:1
NC50-70(4 1/2IF)	177.8	7	71.4	2 13/16	9150&9450	164.7	2.73:1
NC50-72(4 1/2IF)	184.2	7 1/4	71.4	2 13/16	9150&9450	169.5	3.12:1
NC56-77	196.8	7 3/4	71.4	2 13/16	9150&9450	185.3	2.70:1
NC56-80	203.2	8	71.4	2 13/16	9150&9450	190.1	3.02:1
6 5/8 REG	209.6	8 1/4	71.4	2 13/16	9150&9450	195.7	2.93:1
NC61-90	228.6	9	71.4	2 13/16	9150&9450	212.7	3.17:1
7 5/8 REG	241.3	9 1/2	76.2	3	9150&9450	223.8	2.81:1
NC70-97	247.6	9 3/4	76.2	3	9150&9450	232.6	2.57:1
NC70-100	251	10	76.2	3	9150&9450	237.3	2.81:1
8 5/8 REG	279.4	11	76.2	3	9150&9450	266.7	2.84:1

NON-MAGNETIC FLEX DRILL COLLAR

SPECIFICATION2: TOLERANCE OF NON-MAGNETIC DRILL COLLAR

OD Range		OD	ID	Length	Shoulder chamfer diameter-DF
(mm)	(Inch)	OD	ID	Length	Shoulder chamfer diameter-DF
≤88.9	≤3 1/2	+1.2 0	+1.6 0	＋152.4	±0.4
＞88.9 - 114.3	＞3 1/2 - 4 1/2	+1.6 0
＞114.3 - 139.7	＞4 1/2 - 5 1/2	+2.0 0
＞139.7 - 165.1	＞5 1/2 - 6 1/2	+3.2 0
＞165.1 - 215.9	＞6 1/2 - 8 1/2	+4.0 0
＞215.9 - 241.3	＞8 1/2 - 9 1/2	+4.8 0
＞241.3	＞9 1/2	+6.4 0

SPECIFICATION3: MECHANICAL PROPERTY OF NON-MAGNETIC DRILL COLLAR

Steel	OD Range	Yield Strength Rt		Tensile Strength Rm		Elongation	Impact Value	Hardness Brinell
Grade	in	Mpa	ksi	Mpa	ksi	A(%)	Akv/L	(HB)
NM530	3 1/8 - 6 7/8	≥827	≥120	≥827	≥120	≥25	≥150	285 360
	7 - 9 1/2	≥758	≥110
NM550	3 1/8 - 6 7/8	≥965	≥140	≥1034	≥150	≥25	≥150	285-360
	7- 9 1/2	≥827	≥120
NM650	3 1/8 - 6 7/8	≥965	≥140	≥1034	≥150	≥20	≥90	330-400
	7- 9 1/2	≥896	≥130