What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 piece.

What are the payment terms accepted?

Accepted payment methods include T/T, D/P, Western Union, PayPal, LC, and Small-amount payment.

What is the average lead time for delivery?

The average lead time is within 15 workdays for both peak season and off-season.

API Spiral Drill Collar 7" Od for Reducing Differential Sticking

Name: API Spiral Drill Collar 7" Od for Reducing Differential Sticking
Brand: Goldenman Petroleum Equipment Co., Limited
SKU: 2141331762

Shandong, ChinaGoldenman Petroleum Equipment Co., Limited

US$1,500.00

10 Pieces

Product profile

Customization

Available

After-sales Service

Warranty

1 Year

Model NO.

different

Manufacturing Process

Stamping

Surface Treatment

Sand Blast

Operation Pressure

Atmospheric Pressure

Material

Non-Mag

Condition

Brand New

Quality

Reliable

Work

Oilfield

Length

Transport Package

Frame

Specification

different

Trademark

GOLDENMAN

Origin

Shandong, China

Key features

Anti-Sticking Design: Spiral grooves reduce contact area by 25-40%, minimizing differential sticking risk.

High-Strength Material: Made from AISI 4145H steel with 285-341 BHN hardness for high yield and tensile strength.

Weight Optimization: Approximately 4% lighter than smooth collars, aiding in drill string weight profile management.

API Compliant: Manufactured in strict compliance with API Spec 7-1 and SY/T5144 international standards.

Customization Support: ODM and OEM services available, with customization options from customer samples.

Versatile Applications: Ideal for directional, horizontal, deep, and ultra-deep well drilling operations.

Flexible Ordering: Low minimum order quantity of 1 piece, supporting diverse project requirements.

Fast Delivery: Average lead time within 15 workdays for both peak and off-season periods.

Company profile

Exhibition ExperienceImporters and ExportersHigh Repeat Buyers ChoiceYears of Export Experience

Goldenman Petroleum Equipment Co., Limited

Shandong, China

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: ≤2.93h

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 is the warranty period for the Spiral Drill Collar?

The product comes with a 1-year warranty.

Q:How does the spiral design reduce sticking risks?

The three right-hand spiral grooves decrease the surface contact area with the wellbore by approximately 25-40%, effectively minimizing the risk of differential pressure sticking.

Q:What material is used for manufacturing?

It is manufactured from high-strength AISI 4145H chromium-molybdenum alloy steel, heat-treated for uniform toughness.

Q:Is customization available for this product?

Yes, ODM and OEM services are available, and customization options can be provided from customer samples.

Q:What are the recommended applications for this tool?

It is indispensable for directional and horizontal drilling, as well as deep and ultra-deep wells where high strength and resistance to sticking are crucial.