Besdrill Safety-Enhanced Rotary Slips for Drilling

• Customization: Available
• After-sales Service: Online Technical Support
• Surface Treatment: Without Processing
• Model NO.: SD
• Material: Zg35mrmo
• Structure: Slider
• Type: Casing Head
• Centralizer Type: Semi-Rigid
• Transport Package: Wooden Case
• Specification: 3′ ′ -14′ ′
• Trademark: Besdill
• Origin: China

Product Description

Product Description

What is Slip?

In the context of oil and drilling equipment , a slip is a critical tool used to grip, suspend, and secure tubulars such as drill pipes, casings, or drill collars during drilling operations.
Its primary function is to prevent these heavy tubulars from slipping or falling into the wellbore, ensuring safety and stability during processes like tripping (raising or lowering the drill string) or well completion. Slips typically feature a segmented, cone-shaped design with hardened inserts (called "slip teeth") that bite into the outer surface of the tubular, creating a secure hold.

Rotary Slips

Rotary slips can accommodate drill pipe from 2 3/8-7in(60.3-177.8mm)O.D. They Are classified as type Ultra-Short(SDS-S),short(SDS),Medium(SDML) and Extra Long(SDXL) according to gripping length.SDS-S slips and SDS slips are designed for shallow drilling,SDML slips are the perfect choice for all medium depth drilling,SDXL slips are designed for deep drilling.

Technical parameters

Model	Slip Body Size(in)		3.1/2			4.1/2
SDS	Pipe Size	in	2.3/8	2.7/8	3-1/2	3.1/2	4	4.1/2
		Mm	60.3	73.0	88.9	88.9	101.6	114.3
	Weight	Kg	53.1	50.3	48.5	64.9	61.7	57.6
		b	117	111	107	143	136	127
SDML	Pipe Size	In	2.3/8	2.7/8	3.1/2	3.1/2	4	4.1/2
		Mm	60.3	73.0	88.9	88.9	101.6	114.3
	Weight	Kg	87.5	85.3	81.6	94	90.3	85.3
		lb	193	188	180	207	199	188
SDXL	Pipe Size	in	-	-	-	3.1/2	4	4.1/2
		mm	-	-	-	88.9	101.6	114.3
	Weigh	kg	-	-	-	103.9	99.3	93
		lb	-	-	-	229	219	205
Model	Slip Body Size(in)		5			5.1/2
SDML	Pipe Size	in	4	4.1/2	5	4.1/2	5	5.1/2
		mm	101.6	114.3	127	114.3	127	139.7
	Weigh	Kg	92.5	88.9	84	90.9	84	82.1
		lb	204	196	185	200	185	181
SDXL	Pipe Size	in	4	4.1/2	5	4.1/2	5	5.1/2
		mm	101.6	114.3	127	114.3	127	139.7
	Weigh	kg	107.5	103	96.6	106.1	101.5	95.3
		lb	237	227	213	234	224	210

 

Product Advantages

1.Strong Adaptability & Wide Coverage

The slips are designed for various tubulars in drilling operations, including drill pipes, casings, and drill collars. Different types (e.g., drill pipe slips, casing slips, drill collar slips) and models (CMS type, UC-3 type, A type, WT type) cover diverse specifications, ensuring a precise fit for tubulars of different sizes and structures, meeting the needs of various drilling scenarios.

2.Enhanced Safety & Reliability

Safety slips (WA type, MP type) provide additional security, especially for shoulderless tubulars, effectively preventing accidental slipping or falling into the wellbore, thus reducing operational risks.

The design of slip teeth (likely made of high-strength, wear-resistant materials) ensures a firm grip on tubulars, maintaining stability during tripping or well completion processes.

3.Optimized Structural Design

Multi-piece designs (e.g., W-type split slips) enable uniform force distribution on the tubular surface, avoiding deformation or damage to the tubulars.
Specific technical features (e.g., 1:4 taper for UC-3 casing slips) enhance the gripping effect, ensuring a tighter and more stable hold, which is critical for handling heavy loads.

4.Automation & Efficiency

Hydraulic slips (WY series) align with the trend of automated drilling. They enable efficient, high-pressure operation with reduced manual intervention, improving operational efficiency and reducing labor intensity.

5.Diverse Models for Targeted Needs

A range of models (e.g., DU type, B type, CMS type) are available to address specific requirements: for example, drill collar slips are tailored to handle heavy drill collars, while casing slips are optimized for large-diameter casings, ensuring targeted performance in different operational links.

 

Product Application

1.Drill Pipe Slips

Used during tripping operations (raising or lowering the drill string) to grip and suspend drill pipes-hollow, high-strength pipes that transmit drilling fluid and rotational force from the surface to the drill bit. They secure the drill pipe in the rotary table or casing head, preventing downward slippage while crew members connect or disconnect pipe sections (makeup/breakout).  

2.Casing Slips

Employed during casing running and cementing operations. Casing (large-diameter, thick-walled pipes) lines the wellbore to prevent collapse, isolate formations, and control fluid flow. Casing slips suspend the casing string in the wellhead temporarily, allowing precise positioning before cementing (to fix the casing in place) or during adjustments to casing depth.  

3.Drill Collar Slips

Designed for heavy, thick-walled drill collars-weighted components that provide downward force to the drill bit. These slips secure drill collars during tripping or when the drill string is stationary, ensuring stability given the collars' greater weight and rigidity compared to drill pipes.  

4.Safety Slips

Function as secondary safeguards, typically used alongside primary slips (e.g., drill collar or casing slips) for "shoulderless" tubulars (tubulars without a flange or shoulder to rest on). They prevent accidental slippage during critical operations like wellbore cleaning or toolstring deployment, enhancing safety in high-risk scenarios.  

5.Hydraulic Slips (WY Series)

Integrated into automated drilling systems, these slips streamline operations in high-efficiency, high-pressure drilling environments (e.g., deepwater or unconventional wells). They automate the gripping and releasing of tubulars, reducing manual intervention, speeding up tripping cycles, and minimizing downtime in continuous drilling processes.  

Company Profile

Why Choose Our Slips?

At Besdrill, we are committed to delivering excellence in every component we manufacture, and our Slips are no exception. Here's why customers worldwide choose our solutions:

1. Certified Quality & Compliance

All products meet API Spec 7K standards-the global benchmark for drilling equipment safety and performance. Rigorous quality control (from material selection to final testing) ensures durability, wear resistance, and long service life, even in extreme downhole conditions.  

2.Tailored Solutions  

We understand diverse drilling scenarios. Whether you need slips for standard operations or custom-designed models (e.g., 1:4 taper UC-3 casing slips, multi-piece designs for uniform force distribution), our technical team works closely with clients to deliver personalized solutions.  

3.Global Supply Capability  

Backed by a robust supply chain and strategic partnerships with top manufacturers, we guarantee stable inventory and on-time delivery. Our experienced logistics team handles international shipping, customs clearance, and documentation efficiently, ensuring seamless delivery to ports worldwide.  

4.Customer-Centric Service  

Beyond product supply, we offer pre-sales technical consultation (e.g., slip selection based on tubular specs) and post-sales support (maintenance guidance, replacement parts). Our responsive team ensures quick communication, with 24/7 availability for urgent inquiries.  


Due to variations in product models, the quotations may differ.  For more details on product prices and information, please leave us a message.  Our sales manager will provide you with specific quotations and product introductions.Looking forward to your inquiry!

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