What after-sales services are provided?

We offer 24-hour online maintenance guidance service and repair services.

What payment methods are accepted?

Accepted payment types include T/T, L/C, MoneyGram, credit card, PayPal, Western Union remittance, and cash.

What are the accepted delivery conditions?

Accepted delivery conditions include FOB, CIF, FAS, DDP, and express shipping.

API Well 7-1 String Petroleum Non-Magnetic Drilling Collar

Name: API Well 7-1 String Petroleum Non-Magnetic Drilling Collar
Brand: Dongying Tianrui Petroleum Technology Co., Ltd.
SKU: 2094051192

Shandong, ChinaDongying Tianrui Petroleum Technology Co., Ltd.

US$1,100.00

1-99 Pieces

US$800.00

100+ Pieces

Sample price:US$1100.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Repair

Warranty

Two Years

Model NO.

Drill Collar

Manufacturing Process

Forging

Surface Treatment

Polishing

Operation Pressure

Atmospheric Pressure

Material

Alloy

Thread Connection

API,If,Reg,Nc,Fh,If

Transport Package

Standard Export Package

Specification

customizable

Trademark

Origin

Shandong Dongying

HS Code

8431431000

Production Capacity

5000 PCS/Year

Key features

API Spec 7-1 Compliance: Manufactured strictly according to API Spec 7-1 and SY5411/SY5144 standards.

Non-Magnetic Design: Cold rolled finish on ID/OD ensures optimal resistance to stress, corrosion, and cracking.

Custom Thread Options: Thread connections customizable to API, IF, REG, NC, and FH standards.

Spiral Drill Collar: Reduces contact area to avoid bit sticking caused by differential pressure.

Elevator & Slip Grooves: Grooves on box thread face allow use as lifting sub and safety slip during trips.

Hardbanding Option: Optional hardbanding available upon customer request for enhanced durability.

2-Year Warranty: Comprehensive two-year warranty coverage for all mechanical equipment.

100% Quality Inspection: Pre-production samples and final visual inspections before shipment guaranteed.

Company profile

Cooperated with Fortune 500High Repeat Buyers ChoiceImporters and Exporters

Dongying Tianrui Petroleum Technology Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Qingdao PortAverage Response Time: ≤1.02h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with 3D software design and multiple customization options. Its business covers petroleum machinery, hydraulic components, mechanical equipment services, electrical equipment, instruments, chemical products, and camping houses. Quality and sustainability credentials include ISO9001:2015, ISO45001:2018, and ISO14001, while documented quality procedures, raw-material traceability, and two inspectors support basic quality control. The supplier has in-stock capacity, a one-month average lead time in both peak and off-season, and 12 qualified service-capability suppliers. However, it lacks an available SDK, valid manufacturing-capacity contracts with factories or related subcontractors, overseas warehouses, overseas showrooms, overseas agents or branches, and offline trade-show experience. Corrective-action and complaint procedures exist but lack written records. Financial information is represented only by reporting years, so financial...

Supplier typeThe supplier is explicitly identified as a professional technical supplier. Its stated scope includes petroleum machinery and accessories, hydraulic components, mechanical equipment services, electrical equipment, instruments, and related products, indicating a technically oriented industrial supplier.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications, and earlier company information states that quality, environmental, and occupational health and safety management system certifications were obtained in 2014. These records provide explicit evidence of certification holdings.

R&D capabilityThe supplier is described as having professional technical R&D capability and can provide 3D software design services, which supports design and technical development capability. However, no SDK is available, indicating a limitation in SDK-based development or integration.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. The same range is supported in the design-services capability record, providing clear evidence of broad customization capability.