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GMF Non-Drill Stage Collar
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Home - Products - Stage Collar
  • introduction
  • Features
  • Specifications
Product introduction

It is mainly used for double-stage cementing of casing. After the operation, the switch rubber plugs and sliding sleeves inside the stage collar all fall freely to the bottom of the casing, eliminating the drill accessories, saving cost and cycle.

Product Features
Simple structure and reliable performance.
After the operation, a full diameter is formed, no need to drill accessories.
There is no drilling and removal operation, stage collar sealing will not be affected without drilling operation.
Specifications

Size

Casing（Thickness

Sealing Capacity

InmmLb/ftmmMPa
5-1/2139.717
20		7.72
9.17		35/50
7177.826
29
32
35		9.19
10.36
11.51
12.65		35/50
Product introduction

It is mainly used for double-stage cementing of casing. After the operation, the switch rubber plugs and sliding sleeves inside the stage collar all fall freely to the bottom of the casing, eliminating the drill accessories, saving cost and cycle.

Product Features
Simple structure and reliable performance.
After the operation, a full diameter is formed, no need to drill accessories.
There is no drilling and removal operation, stage collar sealing will not be affected without drilling operation.
Specifications

Size

Casing（Thickness

Sealing Capacity

InmmLb/ftmmMPa
5-1/2139.717
20		7.72
9.17		35/50
7177.826
29
32
35		9.19
10.36
11.51
12.65		35/50
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