The casing bushing is a critical tool for managing casings up to 30 inches during drilling operations. Comprising a bushing body and insert bowl, these bushings are designed for compatibility with various casing sizes and rotary tables. To meet different operational requirements, the casing bushings are available in both solid (CU and CUL types) and split (CB type) structures. Manufactured according to API Spec 7K standards, these bushings ensure high-quality performance and durability in demanding drilling environments.
Specifications Table
| Rotary Table Size | Model | Tubular OD (In): 2-3/8 to 8-5/8 | Tubular OD (In) 9-5/8 to 10-3/4 | Tubular OD (In): 11-3/4 to 13-3/8 | Tubular OD (In): 16 | Tubular OD (In): 18-5/8 to 20 | Tubular OD (In): 24 | Tubular OD (In): 26 | Tubular OD (In): 30 |
|---|---|---|---|---|---|---|---|---|---|
| 17-1/2 to 20-1/2 | CU | Bushing 3102 + Insert Bowl 1809 | Bushing 3102 + Insert Bowl 1902 | Bushing 3102 | / | / | / | / | / |
| 27-1/2 | CUL | Bushing 3103 + Insert Bowl 3105 + 1809 | Bushing 3103 + Insert Bowl 3105 + 1902 | Bushing 3103 + Insert Bowl 3105 | Bushing 3103 + Insert Bowl 3104 | Busing 3103 | / | / | / |
| 27-1/2 | CB | Bushing 6695 + Insert Bowl 6126 + 6115 | Bushing 6695 + Insert Bowl 6126 + 6114 | Bushing 6695 + Insert Bowl 6126 | Bushing 6695 + Insert Bowl 6127 | Busing 6695 | / | / | / |
| 37-1/2 | CB | Bushing 10187 + Insert Bowl 6126 + 6115 | Bushing 10187 + Insert Bowl 6126 + 6114 | Bushing 10187 + Insert Bowl 6126 | Bushing 10187 + Insert Bowl 6127 | Busing 10187 | Bushing 11253 | Bushing 16454 | Bushing 11763 |
Applications and Role
The casing bushing is essential for managing and supporting casings during drilling operations. Available in solid and split designs, these bushings provide versatile compatibility with various casing sizes and rotary tables, ensuring durable performance in demanding drilling conditions.
