Wellhead equipment for drilling
US12410671B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2024 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Jun 11, 2044 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/043
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided is a wellhead equipment for drilling including a wellhead, a conductor string, a guide base plate, a casing hanger and a first casing string. The guide base plate includes a base plate body and a mounting cylinder fixedly arranged in the base plate body, a top end of the wellhead is positioned above the mounting cylinder and provided with an interface part, a bottom end of the wellhead is positioned below the mounting cylinder, the conductor string is positioned below the wellhead, the conductor string is fixedly connected and communicated with the wellhead, a support ring fixedly clamped with the mounting cylinder sleeves an outer wall of a part, positioned in the mounting cylinder, of the wellhead, the casing hanger is clamped in the wellhead, the first casing string is positioned below the casing hanger, and the first casing string is fixedly connected with the casing hanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.