Description
Drill Collar Rotary Slip | WT Type
SGPE Drill Collar Rotary Slip is a heavy-duty oilfield rotary slip for gripping, holding and suspending drill collars on petroleum drilling rig floors. The WT type drill collar rotary slip series supports drill collar handling during oil and gas drilling, BHA operations, petroleum workover, well servicing and rotary table drill string handling.
This drill collar slip series covers drill collars from 4 1/2 in to 9 1/2 in OD. It helps rig crews hold heavy drill collars on the rotary table during running, pulling, make-up, break-out and connection operations. With a conical slip body, stable insert system and simple mechanical gripping action, the WT type rotary slip gives crews strong support in demanding oilfield conditions.
In petroleum drilling, drill collars provide weight on bit and help stabilize the bottom hole assembly. Because they have large outside diameters, thick walls and high weight, crews need a strong drill collar rotary slip that can match the insert bowl, grip firmly and release smoothly when lifting starts.
SGPE designs and manufactures WT Type Drill Collar Rotary Slips according to API Spec 7K for Drilling and Well Servicing Equipment. These API 7K drill collar slips suit drilling contractors, oilfield service companies, rig operators and petroleum equipment distributors that need reliable rotary table handling tools for daily rig floor operations.
API 7K Drill Collar Rotary Slip for Petroleum Rig Floors
A Drill Collar Rotary Slip helps rig crews hold drill collars securely on oilfield rotary tables. During operation, the slip sits inside the rotary table bushing or configured insert bowl. When the drill string moves downward, the slip follows the load and moves along the tapered bowl surface.
The slip body uses a conical outer profile. As the tool enters the bowl, the matching taper pushes the slip segments inward. Then the slip teeth grip the drill collar surface and create firm holding force. This mechanical action helps crews control heavy collars without using a complex hydraulic or pneumatic system.
When the crew lifts the drill string, the upward movement reduces the holding force. The tooth structure and back cone design help the tool release from the drill collar. Then crews can lift the slip from the rotary table and continue the next operation.
Each slip piece includes an axial dovetail groove, liner plate and slip press plate. This structure keeps the inserts in position and supports steady contact between the slip and the drill collar. When the inserts wear, crews can replace them instead of changing the whole slip assembly. As a result, the WT series helps users reduce maintenance cost, simplify field service and extend tool life.
Key Features of SGPE Drill Collar Rotary Slip
Wide Drill Collar OD Range
The WT series covers drill collars from 4 1/2 in to 9 1/2 in OD. This range fits many common drill collar handling requirements on petroleum drilling rigs, workover rigs and well servicing units.
API 7K Manufacturing Standard
SGPE manufactures these drill collar rotary slips according to API Spec 7K requirements for drilling and well servicing equipment. Therefore, the product suits oilfield projects that require standardized rotary table handling tools.
Strong Conical Slip Body
The tapered slip body works with the insert bowl or rotary table bushing to create radial gripping force. This structure moves the slip segments inward and helps clamp the drill collar firmly during holding and suspension.
Stable Slip Insert System
The slip teeth grip the drill collar surface and help prevent unwanted movement. Meanwhile, the liner plate, slip press plate and axial dovetail groove keep the insert system stable during rig floor handling.
Smooth Grip and Release Action
The WT type slip grips the drill collar when the load moves downward and releases when lifting begins. This action helps crews handle drill collars with better control during running, pulling and BHA handling.
Easy Rig Floor Maintenance
Crews can inspect the slip teeth, insert plates, liner plates, press plates and body condition during routine maintenance. When worn parts appear, users can replace them to restore gripping performance.
Suitable for Rotary Table Drill Collar Handling
These oilfield rotary slips work with matching insert bowls and rotary table bushings. They support drill collar suspension, drill string handling, BHA support, make-up and break-out assistance, workover service and well servicing operations.
Applications in Oil and Gas Drilling Operations
SGPE Drill Collar Rotary Slip serves petroleum industry applications where rig crews need to hold heavy drill collars on the rotary table. It suits land drilling rigs, oil and gas drilling rigs, workover rigs, well servicing units and petroleum equipment maintenance projects.
Common applications include rotary table drill collar suspension, drill collar running, drill collar pulling, BHA handling, drill string make-up and break-out support, heavy tubular handling, workover rig drill collar holding and rig floor tool replacement.
Drilling contractors, rig operators, oilfield service companies and petroleum equipment distributors often choose this drill collar slip series for daily rig floor use. Correct matching between the drill collar OD, slip model, insert bowl and rotary table bushing helps improve gripping stability and operational safety.
How Drill Collar Rotary Slip Works
The WT type drill collar slip uses a proven mechanical gripping principle. The slip body has a tapered outside profile, while the insert bowl or rotary table bushing has a matching tapered surface. When the drill collar enters the slip and the load moves downward, the slip follows the drill collar into the bowl.
As the slip moves downward, the tapered bowl pushes the slip segments toward the drill collar. The slip teeth then grip the surface and hold the tool in place. Under correct working conditions, the downward load increases the gripping action and helps the slip maintain stable suspension.
When the crew lifts the drill string, the holding force decreases. The back cone structure and tooth design help the slip release from the drill collar. Then crews can lift the slip from the rotary table and continue the operation.
This design gives the WT series several advantages for petroleum rig floors. It works without a complex power system, allows simple inspection and supports dependable drill collar handling during drilling, workover and well servicing operations.
Technical Parameters of WT Type Drill Collar Rotary Slip
The following table lists common SGPE WT Type Drill Collar Rotary Slip models. Customers can use it for preliminary selection. Final selection should match the drill collar OD, configured insert bowl, rotary table bushing, rig floor procedure and petroleum drilling program.
| Model | WT4 1/2-6 | WT5 1/2-7 | WT6 3/4-8 1/4 | WT8-9 1/2 |
|---|---|---|---|---|
| Drill Collar OD Range, in | 4 1/2–6 | 5 1/2–7 | 6 3/4–8 1/4 | 8–9 1/2 |
| Drill Collar OD Range, mm | 114.3–152.4 | 139.7–177.8 | 171.4–209.6 | 203.2–241.3 |
| Weight, kg | 49 | 46 | 42 | 39 |
| Weight, lb | 108 | 101 | 92 | 86 |
| Configured Insert Bowl No. | API or No. 3 | API or No. 3 | API or No. 3 | API or No. 3 |
| Max Load | 40 tons | 40 tons | 40 tons | 40 tons |
Need help choosing the correct WT model? Send SGPE your drill collar OD, insert bowl type and working load. Our team can help confirm the suitable API 7K drill collar rotary slip before quotation.
Model Selection Guide for Drill Collar Rotary Slip
Choosing the right drill collar rotary slip helps improve holding performance and reduce handling risk on the rig floor. Before ordering, users should check drill collar size, insert bowl type, rotary table bushing, working load and operating procedure.
First, confirm the drill collar outside diameter. The selected WT model must cover the actual OD. For example, WT4 1/2-6 fits drill collars from 4 1/2 in to 6 in, while WT8-9 1/2 fits drill collars from 8 in to 9 1/2 in.
Second, check the insert bowl. SGPE WT Type Drill Collar Rotary Slips work with API or No. 3 configured insert bowls. Proper matching helps the tapered surfaces contact correctly and allows the slip segments to move inward as designed.
Third, confirm the working load. The WT series supports a maximum load of 40 tons under correct operating conditions. Users should match the slip with the well program, drill collar weight, rig procedure and safety requirement.
Fourth, inspect the slip teeth and insert condition before operation. Clean and sharp insert teeth help improve gripping performance. If crews find worn teeth, damaged liner plates or loose press plates, they should replace the affected parts before use.
Finally, review the actual rig floor handling method. Different drilling rigs may use different rotary table sizes, bushing structures and handling procedures. SGPE can support model selection according to drill collar OD, insert bowl requirement, rig type and oilfield working condition.
Advantages of SGPE Drill Collar Rotary Slip
SGPE Drill Collar Rotary Slip helps oilfield users improve drill collar handling efficiency and maintain stable rig floor operation. The product offers practical value for drilling contractors, petroleum equipment distributors, oilfield service companies and rig equipment buyers.
The wide size range allows one product series to cover several common drill collar diameters. This helps customers choose a suitable model for different petroleum drilling programs without changing to another slip type.
The mechanical gripping structure makes operation direct and reliable. The slip works with the rotary table bushing and uses tapered contact to create gripping force. This simple structure supports quick field inspection and reduces complicated maintenance work.
The replaceable insert design helps control long-term operating cost. When slip teeth wear after repeated rig floor use, crews can replace the insert parts instead of replacing the entire slip assembly.
The robust body structure supports demanding oilfield environments. Drill collars have large outside diameters, thick walls and high weight, so they require strong and reliable holding tools. SGPE manufactures the WT series for these heavy-duty petroleum drilling requirements.
In addition, SGPE provides technical communication before quotation. Customers can send drill collar OD, required model, insert bowl type, working load, quantity and destination port. SGPE will review the application and recommend a suitable drill collar rotary slip for the project.
Designed for Drill Collar Handling in the Petroleum Industry
Drill collars and drill pipes have different structures, weights and handling requirements. Drill collars are heavier and thicker than drill pipe, and they usually require stronger gripping tools. Therefore, users should not select a slip only by approximate tubular size. They should confirm whether the tool matches drill collars, drill pipe, casing or tubing.
The WT series focuses on petroleum drill collar handling. It fits drill collars from 4 1/2 in to 9 1/2 in OD and works with API or No. 3 insert bowls. For other oilfield tubular handling needs, SGPE can also provide suitable drilling slips, rotary slips and rig floor handling tools according to the working condition.
Quality Control and Manufacturing Focus
SGPE pays close attention to structure, material selection, machining accuracy and assembly quality during production. A reliable drill collar slip must fit the drill collar size correctly and keep stable performance under repeated oilfield rig floor use.
During manufacturing, SGPE controls the slip body dimensions, tapered contact surface, dovetail groove, insert plate fit and assembly condition. Accurate machining helps the slip work smoothly with the insert bowl. Stable assembly helps the inserts stay in position during drill collar handling.
Before delivery, SGPE checks the appearance, structure, model marking and key dimensions. This process helps ensure that the supplied product matches the customer’s requested specification. SGPE also supports export packing and delivery communication for international petroleum drilling customers.
Maintenance Tips for Longer Service Life
Proper maintenance helps WT Type Drill Collar Rotary Slips keep stable gripping performance during petroleum drilling, workover and well servicing operations. Operators should inspect the slip before and after use, especially when the tool handles heavy drill collars or works in harsh oilfield environments.
Before operation, crews should check the slip teeth, insert plates, liner plates, slip press plates and slip body. If they find worn teeth, loose components, cracks or deformation, they should repair or replace the affected parts before use.
After operation, crews should clean drilling mud, oil, sand and other contaminants from the slip body. Clean contact surfaces help the slip move smoothly inside the insert bowl. Proper storage also reduces corrosion and supports longer service life.
Regular inspection helps prevent unexpected downtime. If the drill collar slip shows abnormal gripping behavior, visible wear or structural damage, the operator should stop using it and arrange further inspection.
Why Choose SGPE Drill Collar Rotary Slip
SGPE supplies petroleum drilling tools, oilfield handling tools and well servicing equipment for customers in the oil and gas industry. For Drill Collar Rotary Slip, SGPE focuses on practical field use, stable structure, reliable model selection and export supply support.
Customers choose SGPE because the company understands petroleum rig floor equipment requirements. SGPE can help buyers select the proper model according to drill collar size, insert bowl configuration, rig type and operating condition.
SGPE also supports international buyers, petroleum equipment distributors, drilling contractors and oilfield service companies with technical details, quotation support and delivery communication. Whether customers need replacement drill collar slips, rig floor handling tools or petroleum drilling equipment for project procurement, SGPE can help match the right product to the working condition.
Frequently Asked Questions About Drill Collar Rotary Slip
1. What is a Drill Collar Rotary Slip?
A Drill Collar Rotary Slip is an oilfield rotary slip that helps drilling crews grip, hold and suspend drill collars on the rotary table. It works with matching rotary table bushings or insert bowls during petroleum drilling, BHA handling, workover and well servicing operations. Because drill collars carry high weight and support bottom hole assembly stability, rig crews need strong drill collar slips that can hold the tool securely and release smoothly when lifting starts. SGPE supplies these rotary slips for drilling contractors, oilfield service companies and petroleum equipment buyers who need reliable rig floor drill collar handling tools.
2. What drill collar sizes can SGPE WT Type Rotary Slips handle?
SGPE WT Type Drill Collar Rotary Slips cover drill collars from 4 1/2 in to 9 1/2 in OD. The available models include WT4 1/2-6, WT5 1/2-7, WT6 3/4-8 1/4 and WT8-9 1/2. These models help users match different drill collar outside diameters in petroleum drilling and workover projects. Before ordering, customers should confirm the exact drill collar OD, insert bowl type and rotary table configuration. With this information, SGPE can recommend the correct WT type model for safe and efficient rig floor handling.
3. Does SGPE manufacture Drill Collar Rotary Slip according to API 7K?
Yes. SGPE manufactures the WT series according to API Spec 7K for Drilling and Well Servicing Equipment. This standard applies to many drilling and well servicing tools used on oilfield rig floors. For buyers who search for API 7K drill collar slips, API 7K rotary slips or standardized oilfield handling tools, this series provides a practical option for drill collar holding and suspension. Customers can also contact SGPE for technical details before placing an order or preparing a project quotation.
4. What is the maximum load of WT Type Drill Collar Rotary Slips?
The SGPE WT series supports a maximum load of 40 tons under correct working conditions. However, users should not select a drill collar slip by load rating alone. They also need to check drill collar OD, insert bowl match, rotary table bushing condition, rig floor procedure and well program requirements. Proper selection helps improve gripping stability and reduce handling risk. If customers need help with model confirmation, they can send SGPE the drill collar size, operating condition and required working load for review.
5. What insert bowl works with Drill Collar Rotary Slip?
SGPE WT Type Drill Collar Rotary Slips work with API or No. 3 configured insert bowls. A correct insert bowl match helps the slip body move downward along the tapered surface and create radial gripping force around the drill collar. If the bowl does not match the slip, the tool may not grip or release correctly. Therefore, users should confirm the insert bowl number, rotary table bushing type and drill collar OD before purchasing. This step helps drilling crews maintain safer and smoother drill collar handling on the petroleum rig floor.
6. How does Drill Collar Rotary Slip grip the drill collar?
The WT type slip uses a simple mechanical gripping principle. The slip body has a tapered outer profile, and the insert bowl or rotary table bushing has a matching tapered surface. When the drill collar and slip move downward, the tapered bowl pushes the slip segments inward. Then the slip teeth grip the drill collar surface and hold it in position. When the crew lifts the drill string, the holding force reduces, and the back cone structure helps the slip release. This design gives rig crews dependable drill collar suspension without complex hydraulic or pneumatic systems.
7. Where can drilling crews use Drill Collar Rotary Slip?
Drilling crews use Drill Collar Rotary Slip on petroleum drilling rigs, land drilling rigs, workover rigs and oilfield well servicing units. Common applications include drill collar running, drill collar pulling, BHA handling, rotary table drill collar suspension, drill string make-up and break-out support, and general rig floor tubular handling. These API 7K drill collar slips suit oil and gas projects that require stable holding tools for heavy drill collars. They also help petroleum equipment distributors supply practical replacement tools for rig floor maintenance and project procurement.
8. How should buyers choose the correct WT type drill collar slip model?
Buyers should start with the drill collar outside diameter. For example, the WT4 1/2-6 model fits drill collars from 4 1/2 in to 6 in, while the WT8-9 1/2 model fits drill collars from 8 in to 9 1/2 in. After that, users should check the insert bowl, rotary table bushing, working load and rig floor handling method. They should also inspect the slip teeth and insert condition before operation. For faster selection, customers can send SGPE the drill collar OD, insert bowl type and drilling or well servicing application.
9. What is the difference between drill collar slips and drill pipe slips?
Drill collar slips and drill pipe slips handle different tubulars on the rig floor. Drill collars have thicker walls, larger weight and different handling requirements compared with drill pipe. Therefore, crews need drill collar slips that can provide stronger holding support for heavy bottom hole assembly components. Drill pipe slips mainly grip drill pipe during drilling operations, while the WT series focuses on drill collar suspension and rotary table handling. Customers should not choose a slip only by approximate size. They should confirm the tubular type, OD range and rig floor application before ordering.
10. How can users maintain Drill Collar Rotary Slip?
Regular maintenance helps Drill Collar Rotary Slip keep stable gripping performance. Before each operation, crews should check the slip teeth, insert plates, liner plates, slip press plates and slip body. If they find worn teeth, loose parts, cracks or deformation, they should repair or replace the affected parts before use. After operation, crews should clean drilling mud, oil, sand and other contaminants from the slip body. Clean contact surfaces help the slip move smoothly in the insert bowl. Proper storage also reduces corrosion and supports longer service life in oilfield environments.
11. What information should customers provide before requesting a quotation?
To receive an accurate quotation, customers should provide the drill collar outside diameter, required WT model, insert bowl type, rotary table configuration, maximum working load, quantity and destination port. If the buyer does not know the exact model, SGPE can confirm it according to the drill collar OD and rig floor application. Clear information helps SGPE recommend the correct API 7K drill collar rotary slip, reduce communication time and prepare a more suitable quotation for petroleum drilling, workover or well servicing projects.
12. Why choose SGPE Drill Collar Rotary Slip?
SGPE supplies Drill Collar Rotary Slip for oilfield users who need reliable API 7K rotary slips for drill collar handling. The WT series covers common drill collar OD ranges, works with API or No. 3 insert bowls and supports a maximum load of 40 tons. SGPE also provides model selection support, technical communication and export delivery assistance for international buyers. Whether customers need replacement drill collar slips, rig floor handling tools or petroleum drilling equipment for project procurement, SGPE can help match the right product to the working condition.
Request a Quote from SGPE
If you need Drill Collar Rotary Slip, WT Type Drill Collar Rotary Slips, API 7K drill collar slips, oilfield rotary slips, rotary table drill collar slips or petroleum rig floor handling tools for drilling, workover or well servicing operations, SGPE can provide model selection support and a competitive quotation.
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