Casing Slips – Multi-Segment Design for Large-Diameter Casing (4½" to 30")
Product Overview
Slips are essential tools in drilling operations. They securely clamp and suspend the drill string or casing string inside the wellbore. A slip assembly typically consists of the slip body, gripping teeth (buttons), handles, and connectors.
Our casing slips are specifically designed for large diameter casing strings. They feature a multi segment, pin connected structure – typically eleven or more segments – that provides a firm yet flexible grip. This design adapts well to casing outer diameter variations caused by wear, while keeping the assembly lightweight and strong.
Types & Classification
Slips can be classified by:
Application – Drill pipe slips, drill collar slips, casing slips.
Structure – Three-piece, four-piece, long/short combination.
Operation – Power-operated (automatic) or manual.
The casing slips described here are manual, multi-segment, and optimized for large casing sizes.
Key Features:
Wide size range – Fits casing from 4½" to 30" (114.3 mm to 762 mm).
API compliant – Manufactured to API 7K specifications.
Multi-segment construction – Typically 9 to 37 interconnected segments for even load distribution.
Robust yet lightweight – Easier to handle on the rig floor.
Tolerant of casing wear – The segmented design accommodates outer diameter variations.
Circular button inserts – Provide secure gripping without damaging the casing.
Technical Specifications & Available Sizes
Part 1 – Casing OD: 4½" to 10¾"
|
Casing OD (in)
|
Casing OD (mm)
|
Circular Buttons P/N
|
Total Segments
|
Weight (kg)
|
Weight (lb)
|
|
4½
|
114.3
|
2628-108
|
9
|
81
|
176
|
|
5
|
127
|
2619-108
|
9
|
81
|
176
|
|
5½
|
139.7
|
2630-108
|
9
|
80
|
174
|
|
6⅝
|
168.275
|
2628-144
|
12
|
89
|
196
|
|
7
|
177.8
|
2619-144
|
12
|
84
|
184
|
|
7⅝
|
193.675
|
2630-144
|
12
|
75
|
166
|
|
8⅝
|
219.075
|
2630-156
|
13
|
82
|
181
|
|
9⅝
|
244.475
|
2630-168
|
14
|
87
|
192
|
|
10¾
|
273.05
|
2630-180
|
15
|
95
|
209
|
Part 2 – Casing OD: 11¾" to 30"
|
Casing OD (in)
|
Casing OD (mm)
|
Circular Buttons P/N
|
Total Segments
|
Weight (kg)
|
Weight (lb)
|
|
11¾
|
298.45
|
2627-204
|
17
|
118
|
260
|
|
13⅜
|
339.725
|
2630-216
|
18
|
112
|
247
|
|
16
|
406.4
|
2631-252
|
21
|
140
|
308
|
|
18⅝
|
473.075
|
2626-300
|
25
|
167
|
367
|
|
20
|
508
|
2631-312
|
26
|
174
|
383
|
|
24
|
609.6
|
2631-360
|
30
|
201
|
443
|
|
26
|
660.4
|
2631-396
|
33
|
220
|
486
|
|
30
|
762
|
2631-444
|
37
|
248
|
546
|
Note: The number of segments increases with casing diameter, from 9 segments for small sizes up to 37 segments for 30" casing. Each slip uses circular button inserts (part numbers listed) for secure gripping.
Product Tags:
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API 7K Multi Segment Wellhead Casing Slips For Large Diameter Casing 4 1/2" To 30" Images
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