KENNETH DUPAL
Engineering in Mandeville, LA

License number
Pennsylvania ET014237
Category
Engineers
Type
Engineer in Training
Address
Address 2
Mandeville, LA 70448
Pennsylvania

Professional information

Kenneth Dupal Photo 1

Methods And Systems For Reducing Drag And Vortex-Induced Vibrations On Cylindrical Structures

US Patent:
6702026, Mar 9, 2004
Filed:
Apr 29, 2001
Appl. No.:
09/845678
Inventors:
Donald Wayne Allen - Richmond TX
Dean Leroy Henning - Needville TX
Richard Bruce McDaniel - Houston TX
David Wayne McMillan - Houston TX
Kenneth Dupal - Mandeville LA
Assignee:
Shell Oil Company - Houston TX
International Classification:
E21B 1701
US Classification:
166367, 405211, 405212, 405216, 114243
Abstract:
Apparatus for controlling drag and vortex-induced vibration exerted onto a substantially cylindrical element of a fixed position subjected to a fluid flowing environment. Apparatus of the invention comprise a sleeve comprising an ultra-smooth surface. Methods for installing such apparatus onto cylindrical elements, and systems for controlling drag and vortex-induced vibrations in which a substantially cylindrical marine element has an ultra-smooth effective surface.


Kenneth Dupal Photo 2

Drill Pipe Connector And Method

US Patent:
2011014, Jun 23, 2011
Filed:
Dec 23, 2009
Appl. No.:
12/645867
Inventors:
Kenneth Dupal - Mandeville LA, US
Assignee:
Expert E&P Consultants, LLC - Madisonville LA
International Classification:
E21B 19/16, F16L 19/00
US Classification:
166380, 2851231
Abstract:
A drill pipe connector assembly capable of connecting drill pipe segments without rotation. The assembly includes the pin end of a first drill pipe stabbed within the connector end of a second drill pipe. A connector nut is threadedly connected or snap locked to the connector end of the second drill pipe. The connector nut includes a retaining shoulder cooperating with a beveled shoulder on the pin end of the first drill pipe to retain the first drill pipe. The assembly includes seals to provide pressure integrity and prevent leaking. Cooperating rotational torque transfer profiles in the first and second drill pipes enable operational rotation of the drill string.


Kenneth Dupal Photo 3

Smooth Buoyancy System For Reducing Vortex Induced Vibration In Subsea Systems

US Patent:
2002011, Aug 22, 2002
Filed:
Jul 25, 2001
Appl. No.:
09/912939
Inventors:
Richard McDaniel - Houston TX, US
Donald Allen - Katy TX, US
David McMillian - Deer Park TX, US
Kenneth Dupal - Mandeville LA, US
International Classification:
E21B017/01, E21B041/04
US Classification:
166/350000, 166/367000
Abstract:
Smooth buoyancy cylindrical elements having a surface roughness coefficient of K/D less than or equal to 1×10, where K is the average peak-to-trough roughness and D is the effective outside diameter of said the cylindrical element are affixed about marine elements to decrease vortex induced vibration, thereby decreasing stress and loading on the marine elements.


Kenneth Dupal Photo 4

Smooth Sleeves For Drag And Viv Reduction Of Cylindrical Structures

US Patent:
7017666, Mar 28, 2006
Filed:
Jul 26, 2000
Appl. No.:
09/625893
Inventors:
Donald Wayne Allen - Houston TX, US
Dean Leroy Henning - Needville TX, US
David Wayne McMillan - Deer Park TX, US
Richard Bruce McDaniel - Houston TX, US
Kenneth Dupal - Mandeville LA, US
Assignee:
Shell Oil Company - Houston TX
International Classification:
E21B 17/01, E21B 31/00, E02D 5/56
US Classification:
166367, 166350, 405211, 405212, 405216, 114243
Abstract:
A method for controlling drag and vortex induced vibration in a substantially cylindrical element by providing an ultra-smooth surface about the cylindrical element. The system for controlling drag and vortex induced vibration utilizes a substantially cylindrical marine element having an ultra-smooth effective surface.


Kenneth Dupal Photo 5

Drill Pipe Connector And Method

US Patent:
2013014, Jun 13, 2013
Filed:
Feb 11, 2013
Appl. No.:
13/763842
Inventors:
Kenneth Dupal - Mandeville LA, US
International Classification:
E21B 19/16, F16L 21/00
US Classification:
166380, 285386
Abstract:
A drill pipe connector assembly capable of connecting drill pipe segments without rotation. The assembly includes the pin end of a first drill pipe stabbed within the connector end of a second drill pipe. A connector nut is threadedly connected or snap locked to the connector end of the second drill pipe. The connector nut includes a retaining shoulder cooperating with a beveled shoulder on the pin end of the first drill pipe to retain the first drill pipe. The assembly includes seals to provide pressure integrity and prevent leaking. Cooperating rotational torque transfer profiles in the first and second drill pipes enable operational rotation of the drill string.