Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Subsea carrier

a technology for submerged ships and ships, applied in waterborne vessels, special-purpose vessels, vessel parts, etc., can solve the problems of significantly reducing design requirements, reduce operating costs, reduce buoyancy, and reduce drag. effect of

Inactive Publication Date: 2018-01-04
SUBHYDRO
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a floating platform that can be used for loading and unloading vehicles or equipment. The platform is designed to have nearly the same buoyancy as the water it is surrounded by, which reduces the pressure on the seabed. The platform can also hold a heavy load and still have minimal movement during loading and unloading. Additionally, the invention prevents the release of contaminated water during loading and unloading.

Problems solved by technology

However, embodiments with a somewhat positive internal differential pressure are also anticipated because handling a limited differential pressure acting on the hull structure, for example 10 bar rather than 250 bar, reduces the design requirements significantly.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Subsea carrier
  • Subsea carrier
  • Subsea carrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058]The drawings are schematic and intended to illustrate the principles of the invention. Hence, the drawings are not necessarily to scale, and numerous details are omitted for clarity.

[0059]An important aim of the invention is to carry a cargo of fluid, e.g. hydrocarbons, from a loading point to an unloading point along a predefined path as inexpensively as possible. In the present context, this implies keeping an elongated main body 101 aligned with a predetermined path in three dimensions fixed to the Earth, e.g. longitude, latitude and depth, by controlling local coordinates fixed to the main body 101, e.g. roll, pitch and yaw as illustrated with reference to FIG. 9.

[0060]FIG. 1 illustrates a first embodiment of a system according to the invention, comprising a subsea carrier 100 partly submerged in a body of water 1 having a surface 2. A towing vessel 3 on the surface 2 tows the subsea carrier 100 by means of a towing cable 32, in the claims expressed as a control cable with...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A subsea carrier (100) for transporting a fluid, e.g. CNG or crude, comprises a main body (101) for containing the fluid at a predetermined internal pressure, wherein the main body (101) preferably is made of concrete and designed to operate at a water depth where the external pressure substantially counteracts the internal pressure. The subsea carrier has a floating element (102) connected to the main body (101) by a stabilising cable (132), wherein the stabilising cable (132) comprises a first rope (321) for transmitting force and is attached to a first connector (134) that is movable with respect to the main body (101). A system wherein the subsea carrier is towed by a surface vessel (3) or is self-propelled and controlled remotely is also disclosed. The subsea carrier (100) reduces operational costs relative to subsea carriers with traditional control surfaces and ballasting systems at large cargo volumes, e.g. 150 000 m3 or more.

Description

BACKGROUND OF THE INVENTIONField of the Invention[0001]The present invention relates to a subsea carrier for a fluid, e.g. oil or compressed natural gas.Prior and Related Art[0002]In the following, hydrocarbons serves as an example of fluid cargo. However, embodiments of the carrier described herein can carry fresh water, inorganic gas or other fluid chemical compounds. Here, the term “hydrocarbons” means oil and gas, typically extracted from a subterranean reservoir. Natural gas, or NG, means hydrocarbons that are gaseous at normal conditions, i.e. 0° C. and 1 bar, such as methane, whereas the hydrocarbons also include components that are liquid at normal conditions, e.g. crude.[0003]Starting from a reservoir and a pressure of several hundred bar, a mixture of hydrocarbons, water and other substances, e.g. H2S, are brought to the surface under closely super-vised conditions. Temperature and pressure is controlled and chemicals may be added, e.g. to prevent or inhibit formation of h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B63B21/66B63G8/14B63B3/13B63G8/22B63G8/42
CPCB63B21/66B63B3/13B63G8/22B63G8/42B63B21/663B63G8/14B63G2008/425
Inventor SCHRAMM, RAINER
Owner SUBHYDRO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products