Peter N Nellessen

US Patent:

20110198092, Aug 18, 2011

Filed:

Aug 12, 2009

Appl. No.:

13/058351

Inventors:

Jonathan Machin - Gallop Gables, SG
Jean-Bernard Blamengin - New Orleans LA, US
Peter Nellessen - Missouri City TX, US

International Classification:

E21B 41/04

US Classification:

166349

Abstract:

An intervention system and method for control of seabed equipment, including a control umbilical connected to a support vessel or rig via a surface winch; a tether connected to underwater seabed equipment; and an umbilical management system unit coupled between the tether and the control umbilical to couple the support vessel or rig to the seabed equipment. The control umbilical and the tether via the umbilical management system unit provide a communications channel for communicating media, including data, electrical power, hydraulic power and/or chemical treatment fluid, from the support vessel or rig to the seabed equipment. The umbilical management system unit allows for easy deployment and management of the control umbilical and tether and can reel in or pay out the tether and/or the control umbilical under remote control or autonomously.

US Patent:

20130074687, Mar 28, 2013

Filed:

Sep 25, 2011

Appl. No.:

13/244508

Inventors:

Peter Nellessen - Palm Beach Gardens FL, US

International Classification:

F01B 31/00

US Classification:

92142

Abstract:

A device for controlling an underwater actuator by using an ambient pressure potential at the operating depth may include a chamber including a first cavity, a second cavity and a third cavity; the first cavity including a gas at a first pressure including one of at surface atmospheric pressure, lower than surface atmospheric pressure, or a vacuum; the second cavity including a first fluid at a second pressure including at least one of at underwater ambient pressure or higher then underwater ambient pressure and being connected to a underwater fluid supply; the third cavity including a second fluid at a third pressure including at least one of underwater ambient pressure or higher than the underwater ambient pressure and being connected to the actuator.

US Patent:

20140014354, Jan 16, 2014

Filed:

Jul 10, 2013

Appl. No.:

13/938910

Inventors:

Peter Nellessen - Palm Beach Gardens FL, US

International Classification:

E21B 23/14

US Classification:

166338

Abstract:

Embodiments may generally take the form of a cable winch system installable within a riser on a landing string. In particular, one embodiment may take the form of a system having a tubular deployable within a riser and a cable winch deployable within a riser. The cable winch is configured to travel with the tubular as it is deployed within the riser.

US Patent:

54859735, Jan 23, 1996

Filed:

Sep 26, 1994

Appl. No.:

8/312500

Inventors:

Peter Nellessen - Palm Beach Gardens FL

Assignee:

Benthos, Inc. - North Falmouth MA

International Classification:

B65H 7534
B63G 800

US Classification:

242386

Abstract:

Cable is stored a receptacle by a coiling mechanism. In the coiling mechanism, an arm receives the cable at an axis, and supports the cable as it passes from the axis to a feed end located at a point radially spaced from the axis. A cable driver forces the cable into the arm at the axis and toward the feed end. And an arm driver assists rotation of the arm about the axis while the cable is being forced into the arm at the axis.

US Patent:

54231566, Jun 13, 1995

Filed:

Aug 23, 1993

Appl. No.:

8/109952

Inventors:

Peter Nellessen - Palm Beach Gardens FL

International Classification:

F04B 138

US Classification:

52715

Abstract:

The instant invention is a strap for installation over sheathing to hold the sheathing to an underlying structural frame member through the use of interconnecting bands and saddle. The saddle is positioned on the underside of a structural member and receives the bands. Tabs are provided at both ends of the sheathing strap to receive the connecting bands and are also used to align the strap with an underlying structural member. Patterns of through holes are provided in the strap as a fastener alignment guide and are to be used for installation of fasteners after the strap is aligned with the underlying structural member.

US Patent:

20110192610, Aug 11, 2011

Filed:

Aug 19, 2009

Appl. No.:

13/058743

Inventors:

Jonathan Machin - Gallop Gables, SG
Peter Nellessen - Missouri City TX, US

International Classification:

E21B 41/04

US Classification:

166344

Abstract:

A subsea well service system and method are presented for use with an subsea pump capable of flushing the well intervention lubricator of an underwater hydrocarbons production facility. The system essentially includes at least one pump placed at a subsea location in proximity to the well intervention lubricator, and at least one fluid reservoir connected to the pump.

US Patent:

20180073345, Mar 15, 2018

Filed:

Feb 29, 2016

Appl. No.:

15/554513

Inventors:

- Houston TX, US
Colin Stuart BUCHAN - Katy TX, US
Peter NELLESSEN - Palm Beach FL, US

International Classification:

E21B 47/00
E21B 47/04

Abstract:

A fluid level monitoring system comprising: a subsea well comprising a wellbore and a wellhead; a subsea well isolation device installed on the wellhead; and a fluid level monitoring device and associated methods.

US Patent:

20150377257, Dec 31, 2015

Filed:

Jun 27, 2014

Appl. No.:

14/318336

Inventors:

Peter Nellessen - Palm Beach Gardens FL, US

International Classification:

F15B 3/00
F15B 1/02

Abstract:

A subsea actuator comprising a plurality of chambers and at least three pressure levels, including an ambient pressure (medium), a substantially higher than ambient pressure (high), and an at or near surface atmospheric pressure or at a partial or full vacuum (low) to achieve a precise control of the actuator's closing force, speed, and stroke/position. The actuator enables full operations in emergency situations via manual or ROV operations; and can be operated (one way) to extend without supplied fluids in the event of high pressure failure emergency.