API Spec7 Spiral Drill Collar for Drilling String 4145h P550 P530 Custom Non-Mag

• Customization: Available
• Customized: Customized
• Surface Treatment: Spray
• Model NO.: Drill Collar
• Type: Non-magnetic Drill Collar
• Material: High Manganese Steel
• Weight (Kg): 500
• Working Process: Machining
• Size: 2 3/8-10 3/4′′
• Color: Red
• Appearance: Smooth
• Warranty of Core Components: 1 Year
• Item: API Oil
• Video Outgoing-Inspection: Provided
• Applicable Industries: Energy & Mining
• Marketing Type: New Product 2020
• Core Components: Engine
• Advantage: Prices
• Product Name: Q2 3/8-10 3/4-35 Workover Rig Tong for Oil Field
• Application: Oil Field
• Machinery Test Report: Provided
• Transport Package: Plywood Case
• Specification: Drill Collar
• Trademark: Goldenman
• Origin: China
• Production Capacity: 10000 Set/Sets Per Month
• Package Size: 75.00cm * 70.00cm * 60.00cm
• Package Gross Weight: 3000.000kg

Product Description

 DRILL COLLAR 

 

 

 

1. Exceptional Material Quality for API 7-1 Non-Magnetic Drill Collar: Available in Slick Drill Collar with a diameter ranging from 79.4mm to 279.4mm, crafted from robust 4145H/4145H mod or premium Non-magnetic material.
2. Adherence to Top-tier Standards: Conforms to API7-1 and NS-1, ensuring reliability and excellence.
A. Sleek and Sturdy Slick Drill Collar
Note: Our drill collar is engineered to impart the necessary bit weight to the drill bit, thereby maintaining the drill pipe in optimal tension. The specialized design of the drill collar ensures
that the drill bit remains effectively centralized, while the hole track is maintained by its substantial rigidity. These drill collars are meticulously manufactured in strict accordance with API Spec7-1 and
the exacting SY5411 standard, assuring consistent quality.
B. Precision-Engineered Spiral Drill Collar
Note: Our spiral drill collar is innovatively designed to minimize the contact area with the hole, thereby significantly reducing the risk of bit sticking due to differential
pressure. They are crafted with utmost precision, strictly complying with API Spec7-1 and the renowned Standard SY5144, to ensure durability and effectiveness.
C. Spiral Drill Collar Enhanced with Elevator Groove and Slip Groove
Note: The incorporation of an elevator groove and slip groove on the box thread face of both slick and spiral drill collars serves as a reliable lifting
sub and a safety slip during trip-out operations. These technical parameters are meticulously aligned with API SPEC7-1 standards. Additionally, hardbanding is available upon request, providing enhanced service life.
D. Innovative Non-Magnetic Drill Collar
Our drill collars feature a cold-rolled finish on both inner and outer surfaces, achieved through a unique technical process that fortifies the structural integrity. This ensures optimal resistance to stress, corrosion, and cracking, while greatly enhancing mechanical performance.
Top-tier Quality API 7-1 NS-1 Non-Magnetic Drill Collar
Specifications: Our API 7-1 Non-Magnetic Drill Collar Slick Drill Collar measures between 79.4mm and 279.4mm, offering superior non-magnetic performance for demanding drilling conditions.

 

 

 

 

Connections	OD mm	ID mm	Length mm
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	127.0	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	254.0	76.2	9150 or 9450
8 5/8REG	279.4	76.2	9150 or 9450