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R2 API Drilling Collar for Oil Production Downhole
US$1,500.00
10 Pieces
Product profile
Customization
AvailableAfter-sales Service
WarrantyWarranty
1 YearModel NO.
different diametersManufacturing Process
StampingSurface Treatment
Sand BlastOperation Pressure
Atmospheric PressureMaterial
Non-MagCondition
Brand NewQuality
ReliableWork
OilfieldLength
R2Transport Package
FrameSpecification
differentTrademark
GOLDENMANOrigin
Shandong, ChinaKey features
Reduced Sticking Risk: Spiral grooves decrease contact area by 25-40%, preventing differential pressure sticking.
High Strength Material: Made from AISI 4145H steel with hardness 285-341 BHN for high yield and tensile strength.
Controlled Weight: Approximately 4% lighter than smooth collars, optimizing drill string weight profile.
API Compliant: Complies with API Spec 7-1 and SY/T5144 international standards.
OEM/ODM Service: Customization available from samples with OEM and ODM services.
1 Year Warranty: Includes 1-year warranty coverage for after-sales service.
Multiple Connection Types: Available with NC23 to NC61 and REG connection types.
Standard Length Options: Standard lengths of 9,140mm or 9,450mm available.
Company profile
CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 18 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.28h
About Our Factory & Business Background
AddressDongying, Shandong, China
Plant Area565 square meters
Number of Employees21
Registered Capital10,000,000 RMB
Terms of PaymentT/T, D/P, Western Union, PayPal, LC, Small-amount payment
International Commercial Terms(Incoterms)FOB, CIF, EXW, CFR
Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays
Minimum Order Quantity1 Pc
Supply Chain Partners40
Our Production Capability & Technical Expertise
Main ProductsDrill Pipe; Heavy-Weight Drill Pipe; Drill Collars; Annular Bop
QA/QC inspectors1 people
Inspection Type for Finished ProductsRandom inspection(Visual inspection)
Inspection Method for Finished ProductsHave instruction but no written records
R&D Engineers2 people
Traceability of Raw MaterialsNo
Own BrandYes
Our Industry Experience & Global Business Record
Year of Establishment2006-03-09
Main MarketsAfrica
Repeat Buyers Choice50%~80%
Annual Export Revenue32,215,943 RMB
Number of Foreign Trading Staff12
Overseas Agent/BranchNo
New Products Launched in Last yearNo
Product Q&A
Q:What material is used for the Spiral Drill Collar?
A:
It is manufactured from high-strength AISI 4145H chromium-molybdenum alloy steel, heat-treated for uniform toughness.
Q:How does the spiral design reduce sticking risk?
A:
The three right-hand spiral grooves reduce the contact area with the wellbore by approximately 25-40%, minimizing differential sticking.
Q:What are the available connection types?
A:
Common connection types range from NC23 to NC31, NC31 to NC38, NC38 to NC46, NC46 to NC50, NC50 to NC56, 6 5/8 REG, and NC61 to 7 5/8 REG.
Q:Is customization available for this product?
A:
Yes, ODM and OEM services are available, and customization can be done from samples.
Q:What is the warranty period for the drill collar?
A:
The product comes with a 1-year warranty.
Send Inquiry
*To:
Goldenman Petroleum Equipment Co., Limited
Goldenman Petroleum Equipment Co., Limited*Content:
Supplier replies will be sent to your registered email
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