As an important part of drill string, drill collar can supply the drill bit and increase the rigidity of drill string. Drill
collars are manufactured strictly according to API Spec7-1 standard with material of AISI 4145 Mod. We supply slick drill collars, spiral drill collars, etc. The size of drill collar we can provide is from 3.1/8 to 11 inches. We can also provide other drill collars at customers’ specific request.
| Category | Specification |
|---|---|
| Product Information | |
| Product Name | API 5DP 2 7/8" Drill Pipe, 3 1/2" Oil Drill Pipes |
| Applicable Industries | Energy & Mining |
| Application | For Drilling |
| Place of Origin | China |
| Technical Details | |
| Standard & Certification | API |
| Technique | Hot Rolled |
| Core Components | Other |
| Advantage | High Performance |
| Length | R1, R2, R3 |
| Weight | 500 KG |
| Color | As Required |
| Quality & Service | |
| Warranty | 6 Months |
| Showroom Location | None |
| Quality Assurance | Video Outgoing-Inspection, Machinery Test Report |
| Packaging & Delivery | |
| Selling Units | Single Item |
As an important part of drill string, drill collar can supply the drill bit and increase the rigidity of drill string. Drill
collars are manufactured strictly according to API Spec7-1 standard with material of AISI 4145 Mod. We supply slick drill collars, spiral drill collars, etc. The size of drill collar we can provide is from 3.1/8 to 11 inches. We can also provide other drill collars at customers’ specific request.
Constructed from high-permeability austenitic stainless steel alloys, these pipes maintain very low magnetic permeability. This unique property ensures that the drill string itself does not distort the Earth’s magnetic field readings taken by the surveying instruments. By eliminating this magnetic interference, NMDPs guarantee highly accurate real-time data on the wellbore’s trajectory, azimuth, and inclination. This precision is paramount for successfully navigating complex well paths.
