Oil field system for through tubing rotary drilling
US8875782B2 · kind B2 · utility
1Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2008 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Oct 18, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An oil field system comprising a main body having a bore therethrough, the main body having a connection at one end of the bore for, in use, connecting the main body to an existing wellhead, tree or other oil field equipment, a transverse cavity through the bore, the cavity having at least one opening to the outside of the main body, a plurality of flow control devices for insertion, at different times, into the cavity in order to selectively control fluid flow through the bore, wherein the plurality of flow control devices includes a gate valve and drilling BOP rams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.