Invention Grant
- Patent Title: Nearshore subsea drilling
-
Application No.: US17778045Application Date: 2020-11-05
-
Publication No.: US11719049B2Publication Date: 2023-08-08
- Inventor: Peter David Richards , James Alexander Amos
- Applicant: FNV IP B.V.
- Applicant Address: NL Leidschendam
- Assignee: FNV IP B.V.
- Current Assignee: FNV IP B.V.
- Current Assignee Address: NL Leidschendam
- Agency: Polsinelli PC
- Priority: NL 24306 2019.11.25
- International Application: PCT/NL2020/050692 2020.11.05
- International Announcement: WO2021/107771A 2021.06.03
- Date entered country: 2022-05-19
- Main IPC: E21B7/12
- IPC: E21B7/12 ; E21B7/124
Abstract:
A subsea vertical drilling machine is disclosed, having:
a drill assembly formed by:
a riser pipe having a first end, a second end, and a length extending between the first and second ends; and
a drilling machine body, including a drilling head, coupled to the first end of the riser pipe;
and
a vertical feed system configured for advancing the drill assembly in a vertical direction.
The riser pipe is provided with at least one rack extending along at least a part of the length of the riser pipe, and the vertical feed system comprises a motor coupled to a pinion, the pinion arranged for engaging with the rack for advancing the drill assembly.
a drill assembly formed by:
a riser pipe having a first end, a second end, and a length extending between the first and second ends; and
a drilling machine body, including a drilling head, coupled to the first end of the riser pipe;
and
a vertical feed system configured for advancing the drill assembly in a vertical direction.
The riser pipe is provided with at least one rack extending along at least a part of the length of the riser pipe, and the vertical feed system comprises a motor coupled to a pinion, the pinion arranged for engaging with the rack for advancing the drill assembly.
Public/Granted literature
- US20220412168A1 Nearshore Subsea Drilling Public/Granted day:2022-12-29
Information query
