公开(公告)号：US20190233070A1

公开(公告)日：2019-08-01

申请号：US16333208

申请日：2017-10-20

Applicant: Seabed Geosolutions B.V.

Inventor： Martin John Hartland

IPC: B63G8/00 ,  G01V1/38

CPC classification number: B63G8/001 ,  B63B2211/02 ,  B63G2008/007 ,  G01V1/3843

Abstract: Embodiments, including systems and methods, for modeling the catenary shape of one or more deployment lines from a marine vessel, each of which is connected to a subsea device. A subsea device may include ROVs or other underwater vehicles and subsea cages, baskets, and similar devices that may be lowered or raised from the surface vessel. The disclosed system and method provides real-time modeling and predictive modeling of the catenary shape of the deployed lines based on input from one or more real time navigation sensors, as well as inputted parameters or values such as length of deployed cable, etc. This allows the surface vessel and/or ROV operators to maximize the position and speed of the surface vessel, ROV, and other subsea devices, and overall seismic node deployment and recovery operations, within the operational constraints of the system without causing cable failure or entanglement of the deployed lines.

公开(公告)号：US20180252831A1

公开(公告)日：2018-09-06

申请号：US15903607

申请日：2018-02-23

Applicant: Seabed Geosolutions B.V.

Inventor： Martin John Hartland ,  Brendan James Reid ,  Benjamin Jeremy Ash

IPC: G01V1/38 ,  B63B27/32 ,  B63G8/00 ,  B63B27/16 ,  G05D1/02

CPC classification number: G01V1/3852 ,  B63B27/16 ,  B63B27/32 ,  B63G8/001 ,  G01V2210/1427 ,  G05D1/0206

Abstract: A system, apparatus, and method for transferring a subsea payload (such as seismic nodes) at a subsea position by using an elevator system located on a subsea basket. A plurality of seismic nodes may be located on a plurality of support slides, trays, or other node holders at different levels within the basket. The elevator system is configured to move the seismic nodes between different heights within the basket for external transfer from one or more vertical positions. During transfer operations between a subsea basket and an underwater vehicle (e.g., ROV), the desired level of seismic nodes may be positioned to the desired vertical position within the basket and transferred to the ROV by various transfer mechanisms, such as an extendable stinger or chain drive. Multiple levels of seismic nodes (or node holders) may be transferred between the basket and ROV during a single subsea docking.