Selecting the right casing slip involves more than simply matching the casing size. Load capacity, operating conditions, and the way a slip transfers load all play an important role in long-term performance and reliability.
Ramey Martin Energy Tools offers multiple casing slip designs to meet different operational requirements. The CMS-XL is designed to provide exceptional versatility, accommodating casing sizes from 6 5/8 inches to 30 inches O.D. For operations within the 6 5/8-inch to 13 3/8-inch range that demand substantially greater load capacity, Ramey Martin developed the CMS-XD.
Rather than expanding the size range, the CMS-XD focuses on increasing performance where higher capacities are needed.
Built on a Proven Platform
For years, the CMS-XL has provided dependable casing handling for applications starting at 6 5/8-inch casing O.D. Its single load shoulder design has proven itself across countless drilling operations and remains an excellent solution where a 180-ton capacity meets the job’s requirements.
However, today’s operations often demand greater load capacity without sacrificing compatibility or ease of use.
That’s where the CMS-XD was developed, to provide a higher-capacity solution while retaining the familiar features and functionality operators have come to trust including:
- API 4-inch-per-foot taper
- Standard safety flex handles
- Compatibile with the same inserts used in the CMS-XL
- Compatibile with the same inserts used in the CMS-XL
- Stock assembly sizes from 6 5/8-inch through 13 3/8-inch casing O.D.
- Note: Larger sizes are available upon request.
What Makes the CMS-XD Different?
At first glance, the CMS-XD looks similar to the CMS-XL. The biggest difference lies in the way it transfers working loads through the slip body.
Unlike the CMS-XL’s single load shoulder, the CMS-XD utilizes a multi-load shoulder design. Rather than concentrating the working load onto a single critical point, the load is distributed across multiple shoulders throughout the slip body.
This allows the CMS-XD to provide:
- Improved load distribution
- Reduced stress concentration on individual critical points
- Increased structural strength
- Consistent performance under demanding operating conditions
The result is a casing slip engineered specifically for heavier-duty applications.
500 Tons Across Every Assembly Size
One of the CMS-XD’s most significant advantages is that its 500-ton load rating remains the same across every assembly size it offers.
Many casing slips have capacities that vary depending on the assembly configuration. The CMS-XL, for example, begins with a 180-ton rating at 6 5/8-inch casing O.D. and progressively increases in capacity as additional segments are added for larger casing sizes, reaching 500 tons on its largest assemblies.
The CMS-XD was designed with a different objective.
Whether configured for 6 5/8-inch casing O.D. or 13 3/8-inch casing O.D., every CMS-XD assembly is rated for 500 tons.
That consistency simplifies product selection and gives operators confidence that they’re using the same heavy-duty platform regardless of casing size.
CMS-XL vs. CMS-XD
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| FEATURE | CMS-XL | CMS-XD |
| Starting Assembly Size | 6 5/8” Casing O.D. | 6 5/8” Casing O.D. |
| Load Shoulder Design | Single Load Shoulder | Multi-Load Shoulder |
| Number Of Critical Points | 1 | 2 |
| Starting Rating Capacity | 180 Tons | 500 Tons |
| Components Compatibility | Uses Standard CMS-XL Components | Uses Standard CMS-XL Components |
| Taper/ Foot (TPF) | 4.00″ | 4.00″ |
| Rating Across Assemblies | Not The Same Throughout All Assemblies | Same Rating Throughout All Assemblies |
| Best Suited For | Standard Casing Handling | Situations Where Multi-Load Shoulder Design is Required |
Both products remain valuable solutions, but they are engineered for different operating requirements. The CMS-XL continues to provide dependable performance for applications within its rated capacity, while the CMS-XD offers substantially greater load capacity for operations requiring additional strength.
Find the Right Slip for Your Operation
Selecting the right casing slip depends on more than pipe size alone. Load requirements, operating conditions, and equipment compatibility all play a role in choosing the appropriate tool.
Our sales team is available to answer technical questions, discuss your application, and help determine whether the CMS-XL or the new CMS-XD is the right solution for your operation.
Request a quote today to learn more about the CMS-XD or speak with one of our product specialists.