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Drill Pipe Slip — API 7K SD / B / DU Type Handling Tools for Oil Well Drilling
API 7K Drill Pipe Slips — SD, B & DU Type Handling Tools
Product Introduction
Drill pipe slips are essential handling tools used for gripping, making up, and breaking out drill pipes during oil well drilling operations. They are an indispensable tool for coupling and uncoupling drill pipes on the rig floor.
There are three main types: SD type, B type, and DU type, each designed specifically for different drill pipe handling requirements:
SD Type: Handles drill pipes from 2-3/8" to 7" (60.3 mm to 177.8 mm). Classified by gripping length into SDS (Short) for shallow hole drilling, SDML (Medium) for medium depth drilling, and SDXL (Extra Long) for deep drilling.
B Type: Consists of B Short, B Long, and X Long. Features a unique torque transmitting design that directly transfers all torque to the slips, avoiding abrasion and prolonging service life.
DU Type: Includes DU, DUL, and SDU. They have a large handling range and light weight. The SDU type features larger contacting areas on the taper and higher resistance strength.
All drill pipe slips are designed and manufactured strictly according to API Spec 7K specification for drilling and well servicing equipment.
Key Features
Wide Applicable Pipe Range: SD type fits drill pipes from 2-3/8" to 7", meeting the demands of various on-site working conditions.
Multiple Models for Different Depths: Available in short, medium, and extra-long types, separately designed for shallow, medium, and deep well drilling.
Special Torque Transmission Structure: B-type slips transfer full torque directly to the slips, effectively reducing wear and extending service life.
Light Weight & Flexible Operation: DU series features lightweight construction, easy to carry and operate on the rig floor.
High Load-Bearing Capacity: SDU type adopts an enlarged taper contact area, which improves structural strength and compression resistance.
Indispensable for Pipe Making and Breaking: Professional tool for drill pipe make-up and break-out, improving overall operation efficiency.
Technical Specifications — SD Type
| Model | DP OD (inch) | Size of Slip Bodies (inch) |
|---|---|---|
| SDS | 2-3/8" ~ 3-1/2" | 3-1/2" |
| 3-1/2" ~ 4-1/2" | 4-1/2" | |
| 4" ~ 5" | 5" | |
| SDML | 2-3/8" ~ 3-1/2" | 3-1/2" |
| 3-1/2" ~ 4-1/2" | 4-1/2" | |
| 4" ~ 5" | 5" | |
| 4-1/2" ~ 5-1/2" | 5-1/2" | |
| SDXL | 3-1/2" ~ 4-1/2" | 4-1/2" |
| 4" ~ 5" | 5" | |
| 4" ~ 5-1/2" | 5-1/2" | |
| 5-3/4" ~ 5-7/8" | 5-7/8" | |
| 6-5/8" ~ 7" | 7" |
B type and DU type specifications are available upon request. Please contact us with your specific drill pipe OD and drilling depth.
Product Structure
Main Slip Body
Taper Contact Surface
Torque Transmission Structure
Segmented Structure by Gripping Length
Integrated Lightweight Design / Integrated Whole Assembly
Applications
Onshore Oil & Gas Drilling: Mainly used for gripping drill pipes during tripping, make-up, and break-out operations.
Offshore Drilling Operations: Applicable to various offshore platforms, meeting high-standard operating requirements.
Shallow, Medium & Deep Well Drilling: Multiple models with different gripping lengths are available to fit various well depths.
Well Workover & Servicing: An essential tool for pipe handling during well maintenance and downhole operations.
Geothermal & Unconventional Energy: Suitable for clamping pipe strings in geothermal, coalbed methane (CBM), and shale gas projects.
Quality Assurance & After-Sales
Quality & Testing
Standard: API Spec 7K
Material: High-Strength Alloy Steel
Test Report: Provided
Video Inspection: Provided (on request)
After-Sales Service
Standard Warranty: 12 Months
Global Support: 24/7 Technical Assistance and Spare Parts Supply
Training: On-site or Remote Operation / Maintenance Training
Packaging & Delivery
| Packaging Details | Wooden Case / Pallet (Suitable for global shipping) |
| Shipping Port | Shanghai / Tianjin / Qingdao (Negotiable) |
| Delivery Time | 15-30 Days (Depends on quantity) |
| Payment Terms | T/T, Western Union, L/C |
| Customization | Available upon request (OEM/ODM) |
Why Choose Petrolik?
API Spec 7K Compliant: Manufactured strictly according to API Spec 7K for drilling and well servicing equipment, ensuring absolute safety.
Complete Product Series: SD, B, and DU types with diverse sub-models to fit all drilling depths and pipe sizes.
100% Documented Quality: We provide full material test reports with every shipment. Video inspection is available to ensure full traceability.
Reliable Sourcing from Xi'an: Leveraging the mature energy equipment manufacturing ecosystem in Xi'an, we ensure competitive pricing without compromising on quality.
Fast Technical & Quotation Response: Our engineering team responds to technical inquiries and provides detailed quotations within 24 business hours.
Frequently Asked Questions (FAQ)
Q1: What standards are your drill pipe slips manufactured to?
A: All products are designed and manufactured in strict accordance with API Spec 7K.
Q2: How to select the right SD type slips for different well depths?
A: Choose SDS (Short) for shallow wells, SDML (Medium) for medium-depth wells, and SDXL (Extra Long) for deep wells. The gripping length determines the load distribution on the drill pipe.
Q3: What is the main advantage of B type drill pipe slips?
A: B type slips adopt a unique torque transmission structure that transfers the load directly to the slip body, effectively reducing wear on the drill pipe and extending the service life of the slips.
Q4: What are the features of DU type slips?
A: The DU series features lightweight construction for easy handling on the rig floor. The SDU model has an enlarged taper contact area, offering higher structural strength and compression resistance.
Q5: What is your MOQ and Lead Time?
A: Our MOQ is flexible. Standard lead time is 15-30 days depending on the quantity and customization requirements. Please contact us for a precise quote.
Q6: Can you offer customized solutions based on specific working conditions?
A: Yes, we can provide customized products according to your actual drill pipe OD, drilling depth, and rig floor requirements.
Need a Quote for API 7K Drill Pipe Slips?
Send us your required type, drill pipe OD, and quantity. Our team will respond within 24 hours.
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