Home Tools & Hardware Drilling Tools Drill Collar Spiral Drill Collar

Slick Drill Collar & Spiral Drill Collar

Product Details

Customization:	Available
Standard:	ISO
Usage:	Well Drilling Machinery, Offshore Oil and Gas Field Exploitation Machinery

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TIANHE OIL GROUP HUIFENG PETROLEUM EQUIPMENT CO., LTD.

Manufacturer/Factory & Trading Company

Heilongjiang, China

Gold Member Since 2009

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Product Description

Company Info.

Basic Info.

Tractor Hoist Type

Crawler Tractor Hoist

Offshore Unit Type

Jack-up Drilling Rig

Drill Bit Size

17 1/2 inch

Drill Bit Blade

Rig Type

AC Electric Trailer Rig

Drilling Depth

7000m

Transmission System

Hydraulic

Power Type

Diesel

Transport Package

Iron Frame

Specification

27/8"~65/8"

Trademark

tianhe

Origin

China

Production Capacity

20000

Product Description

Drill collar is mainly used to provide bit weight to drill bit so that drill piipe is in tension. Especially drill collar can keep drill bit centralized and hole tradck by large rigidity. Spiral drill collar is used to reduce contact area with hole so as to avoid efficienty bit stricking from differential pressure. Our drill colars are manufactured as per API spec. 7.

Drill collar thread type	OD		ID		Length (mm)
NC23-31	mm	in	mm	in
NC26-35 ( 23/8 ″ IF )	79.4	3 1/8	31.8	11/4	9150
NC31- 41(27/8 ″ IF)	88.9	31/2	38.1	11/2	9150
NC35-47	104.8	41/8	50.8	2	9150
NC38-50(31/2 ″ IF)	120.7	43/4	50.8	2	9150
NC44-60	127.0	5	57.2	21/4	9150
NC44-60	152.4	6	57.2	21/4	9150 (or) 9450
NC44-62	152.4	6	71.4	2 13/16	9150 (or) 9450
NC46-62(4 ″ IF)	158.8	61/4	57.2	21/4	9150 (or) 9450
NC46-65(4 ″ IF)	158.8	61/4	71.4	2 13/16	9150 (or) 9450
NC46-67(4 ″ IF)	165.1	61/2	57.2	2 13/16	9150 (or) 9450
N50-67(4 1/2 ″ IF)	165.1	61/2	71.4	2 13/16	9150 (or) 9450
NC50-70(4 1/2 ″ IF)	171.4	63/4	57.2	2 13/16	9150 (or) 9450
NC50-70(4 1/2 ″ IF)	171.4	63/4	71.4	2 13/16	9150 (or) 9450
NC50-72(4 1/2 ″ IF)	177.8	7	57.2	2 1/4	9150 (or) 9450
NC50-70(4 1/2 ″ IF)	177.8	7	71.4	2 13/16	9150 (or) 9450
NC50-72(4 1/2 ″ IF)	184.2	71/4	71.4	2 13/16	9150 (or) 9450
NC56-77	196.8	73/4	71.4	2 13/16	9150 (or) 9450
NC56-80	203.2	8	71.4	2 13/16	9150 (or) 9450
6 5/8 ″ REG	209.6	81/4	71.4	2 13/16	9150 (or) 9450
NC61-90	228.6	9	71.4	2 13/16	9150 (or) 9450
7 5/8 ″ REG	241.3	9 1/2	76.2	3	9150 (or) 9450
NC70-97	247.6	93/4	76.2	3	9150 (or) 9450
NC70-100	254.0	10	76.2	3	9150 (or) 9450
8 5/8 ″ REG	279.4	11	76.2	3	9150 (or) 9450