Invention Grant
- Patent Title: System and method for simultaneous sea drilling operations
- Patent Title (中): 同步海上作业的系统和方法
-
Application No.: US12562389Application Date: 2009-09-18
-
Publication No.: US08387704B2Publication Date: 2013-03-05
- Inventor: Roberto Rodrigues
- Applicant: Roberto Rodrigues
- Applicant Address: BR Rio de Janeiro
- Assignee: Petroleo Brasileiro S.A.-Petrobras
- Current Assignee: Petroleo Brasileiro S.A.-Petrobras
- Current Assignee Address: BR Rio de Janeiro
- Agency: Sughrue Mion, PLLC
- Priority: BR0803619 20080919
- Main IPC: E21B19/00
- IPC: E21B19/00

Abstract:
A system and method for carrying out simultaneous operations of assembling, dismantling, and maintaining equipment installed by an oil rig, using the tools, systems, and the areas available on the rig itself. The system includes two parallel and separated sustaining beams and two mobile bases supported on the beams to carry out the simultaneous operations. This system allows a method for simultaneously assembling two items of subsea equipment which are to be installed to be performed. Also, this system allows a method for simultaneously replacing and assembling subsea equipment to be performed. Additionally, the equipment can be lowered or recovered using either a derrick and pipe string or a winch and steel cable.
Public/Granted literature
- US20100071906A1 SYSTEM AND METHOD FOR SIMULTANEOUS SEA DRILLING OPERATIONS Public/Granted day:2010-03-25
Information query