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MadeInChina.com > Tools & Hardware > Drilling Tools > Drill Collar

Heavy Duty Slick Drill Collar for Reliable Drilling Machine Operations

Price	$1699.00 Compare
Min Order	50 pcs
Shipping From	Shandong, China
Popularity	217 people viewed
Quantity	+-

Goldenman Petroleum Equipment Co., Limited

Audited Supplier 1 year

Profile Certified by SGS/BV

Shandong, China
Shirley (Ms.)
zhangxuemei

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Product Detail

Model NO.:

API SPEC 7-1

Customized:

Customized

Surface Treatment:

Painting

Type:

Spiral Drill Collar

Standard:

API

Usage:

Oil Mining, Well Drilling

Material:

AISI4145h

Weight (Kg):

200

Condition:

New

Local Service Location:

None

Keyword:

Kelly Drill Pipe

Use:

Well Drilling

Dimension(L*W*H):

2000*150*150mm

End Protector:

Plastic Pipe Cap

Certification:

API

Warranty of Core Components:

1 Year

Surface:

Painting

Applicable Industries:

Energy & Mining

Marketing Type:

Ordinary Product

Core Components:

Bearing, Gear, Pump

Features:

Safe and Stable

Machinery Test Report:

Provided

Trademark:

GOLDENMAN

Transport Package:

Iron Shelves

Specification:

Up to the quantities

Origin:

Shandong, China

HS Code:

843143

Product Description

DRILL COLLAR

Drill Collar

-Purpose: Expertly designed to add crucial weight to the drill bit, ensuring it remains in intimate contact with the geological formation while providing unmatched stability to the entire drill string.

-Specifications:
1) Size: Available in outer diameters ranging from a precise 3-1/8" to a substantial 11", complemented by standard lengths of 31 feet for optimal versatility.
2) Material: Crafted from robust alloy steel known for its remarkable high yield strength, ideal for demanding drilling environments.
3) Weight: Primarily more substantial than standard drill pipes, boasting a specific gravity around 7.8 to meet rigorous operational demands.
4) Thread Connections: Offers API Regular or superior premium threads to accommodate diverse drilling needs.

-Features:
1) Engineered with spiral grooves to effectively prevent differential sticking, enhancing operational efficiency.
2) Equipped with non-magnetic drill collars, perfect for operations involving sensitive directional tools, ensuring precision and safety.

Drill collar specifications
Nominal Size	OD		ID		Length	Bevel Dia. mm	Bending Strength Ratio
Nominal Size	mm	in	mm	in	mm	Bevel Dia. mm	Bending Strength Ratio
NC31-41(2-7/8IF)	104.8	4-1/8	50.8	2	9150	100.4	2.43:1
NC35-47	120.7	4-3/4	50.8	2	9150	114.7	2.58:1
NC38-50(3-1/2IF)	127	5	57.2	2-1/4	9150	121	2.38:1
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	158.8	71.4	2-13/16	9150/9450	150	2.63:1
NC50-70(4-1/2IF)	177.8	7	57.2	2-1/4	9150/9450	164.7	2.54:1
NC56-77	196.8	7-3/4	71.4	2-13/16	9150/9450	185.3	2.70:1
6-5/8REG	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
We can supply full size drill collar with API 5D/5DP, Please leave a message for consultation.

Drill pipe
Size(in)	OD of Pipe Body(mm)	Wall Thickness of Pipe Bodymm
2.3/8" to 6.5/8"	60.32-168.28	7.11-12.70

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