Hunan Dinghan New Material Technology Co., LTD
| Payment Terms | T/T |
| Supply Ability | Negotiable |
| Delivery Time | (Sample order) 7 days |
| Packaging Details | According to customers' requests |
| Product Name | Heavy Weight Drill Pipe |
| Standard | API Spec.7-1 and NS-1 |
| Type | Slick Drill Collar,Spiral Drill Collar,Short Drill Collar |
| Special Feature | Threads cold rolled,Pin Relief Groove and Box Bore Back,Slip and Elevator Recess,Hard Banding |
| Shape | Customized Service |
| Other | Technical Specification Sheet Available |
| Brand Name | DINGSCO |
| Model Number | According to customers' requests |
| Certification | ISO 9001:2015,API 7-1 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | Negotiable |
| Delivery Time | (Sample order) 7 days | Packaging Details | According to customers' requests |
| Product Name | Heavy Weight Drill Pipe | Standard | API Spec.7-1 and NS-1 |
| Type | Slick Drill Collar,Spiral Drill Collar,Short Drill Collar | Special Feature | Threads cold rolled,Pin Relief Groove and Box Bore Back,Slip and Elevator Recess,Hard Banding |
| Shape | Customized Service | Other | Technical Specification Sheet Available |
| Brand Name | DINGSCO | Model Number | According to customers' requests |
| Certification | ISO 9001:2015,API 7-1 | Place of Origin | China |
| High Light | Non-Magnetic Alloy Drill Collar Types ，Non Magnetic Drill Collar Drill Pipe ，Non-Mag Drill Collar And Drill Pipe | ||
API Standard Non-Magnetic Drill Collar Heavy Weight Drill Pipe Oil Field HWDP
Non-Magnetic Drill Collar Overview
Non-magnetic drill collars are vital components in the drill string, primarily used in directional drilling operations to prevent magnetic interference with downhole measurement tools such as Measurement While Drilling (MWD) and Logging While Drilling (LWD).
Material:
Typically constructed from non-magnetic alloys such as beryllium copper or specific non-magnetic stainless steels (e.g., modified AISI 4145H, 15-5 PH stainless steel).
These materials are chosen for their excellent non-magnetic properties and high strength.
Features:
Non-Magnetic Properties:
Designed to have extremely low magnetic permeability, ensuring they do not interfere with the sensitive magnetic sensors in MWD and LWD tools.
Mechanical Strength:
High tensile strength to withstand the high mechanical stresses encountered during drilling operations.
Resistant to fatigue, corrosion, and high temperatures commonly found in downhole environments.
Dimensions:
Available in various sizes, typically ranging in outer diameter (OD) from 4 inches to 11 inches and lengths that can be customized to fit specific drilling needs.
Inner diameters (ID) vary to accommodate different flow rates and tool designs.
Thread Connections:
API standard connections (e.g., NC50, NC38) or proprietary designs to ensure compatibility with other drill string components.
Design Variants:
Some non-magnetic drill collars come with spiral or slick designs to minimize differential sticking and enhance the flow of drilling fluids.
Applications:
Directional Drilling:
Placed directly above the drill bit and below the MWD and LWD tools to provide a non-magnetic gap. This positioning is critical for accurate directional drilling and data collection.
Measurement While Drilling (MWD):
MWD tools measure the trajectory of the wellbore using magnetic sensors. Non-magnetic drill collars ensure these measurements are not affected by magnetic interference from the drill string.
Logging While Drilling (LWD):
LWD tools collect formation evaluation data, including resistivity, porosity, and gamma-ray measurements. Non-magnetic collars prevent magnetic fields from distorting these measurements.
Manufacturing Standards:
Compliant with industry standards like API (American Petroleum Institute) to ensure quality and reliability.
Stringent testing for mechanical properties and non-magnetic characteristics.
Technical Parameters (or customized)
| SPEC.(MM) | OD.(MM) | Magnetic Permeability | Tensile Strength (Mpa) | Yield Strength (Mpa) |
| Φ63 | 63 | ≤1.005 | ≥1035 | ≥965 |
| Φ73 | 73 | ≤1.005 | ≥1035 | ≥965 |
| Φ76 | 76 | ≤1.005 | ≥1035 | ≥965 |
| Φ89 | 89 | ≤1.005 | ≥1035 | ≥965 |
| Φ91 | 91 | ≤1.005 | ≥1035 | ≥965 |
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1998
Total Annual:
70 million-100 million
Employee Number:
50~60
Ecer Certification：
Verified Supplier
Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications. We have complete advanced technology facilities to produc... Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications. We have complete advanced technology facilities to produc...
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