Drill pipe,drill collar,casing drilling,casing pipe,casing tubing,oil casing,drilling equipments

Drill Collar

Products Visitors:1829

Product Name:Drill Collar

Products description:

Product Name: API Non Magnetic Drill Collar

General Description: The Petroleum drilling tools of us mainly include Drill collars, Spiral drill collars, Non magnetic drill collars, Short drill collars, Drill tool stabilizers, Non magnetic drill tool stabilizers, Integral heavy weight drill pipes, etc.

Material: Non magnetic steel

Shape: It is the round pipe with smooth surface and thick wall, and the both ends are machined screw thread for connection.

Use: It is mainly used for the inspection in the process of petroleum drilling.

Standard: API Spec 7-1 or SY/T5144 Standard.

Inspection&Test: When producing, traceability are maintained from the receipt of raw material to completion of final products, and serial numbers are die-stamped on each workpiece body. During each manufacturing process, inspection and test are performed.

Magnetic permeability: (MPS=1×105/4∏A/m),average: Ur<1.010.magnetic field gradient: ΔB≤0.05μT,carbon steel ,high quality API Drill Collar 31/8"-11" .

Connections	ODmm	IDmm	Lengthmm
NC23-31	79.4	31.8	9150
NC26-35	88.9	38.1	9150
NC31-41	104.8	50.8	9150 or 9450
NC35-47	120.7	50.8	915 or 9450
NC38-50	127	57.2	9150 or 9450
NC44-60	152.4	57.2	9150 or 9450
NC44-60	152.4	71.4	9150 or 9450
NC44-62	158.8	57.2	9150 or 9450
NC46-62	158.8	71.4	9150 or 9450
NC46-65	165.1	57.2	9150 or 9450
NC46-65	165.1	71.4	9150 or 9450
NC46-67	171.4	57.2	9150 or 9450
NC50-67	171.4	71.4	9150 or 9450
NC50-70	177.8	57.2	9150 or 9450
NC50-70	177.8	71.4	9150 or 9450
NC50-72	184.2	71.4	9150 or 9450
NC56-77	196.8	71.4	9150 or 9450
NC56-80	203.2	71.4	9150 or 9450
6 5/8REG	209.6	71.4	9150 or 9450
NC61-90	228.6	71.4	9150 or 9450
7 5/8REG	241.3	76.2	9150 or 9450
NC70-97	247.6	76.2	9150 or 9450
NC70-100	254	76.2	9150 or 9450
8 5/8REG	279.4	76.2	9150 or 9450