Todd Ulrich Chretien
Engineering at Ovey Dr, Lafayette, LA
License number
Louisiana EI.0019105
Issued Date
Dec 21, 1999
Expiration Date
Sep 30, 2008
Category
Civil Engineer
Address
Address
224 Ovey Dr, Lafayette, LA 70501
Professional information
Project Engineer At Weatherford International
Location:
Lafayette, Louisiana Area
Industry:
Oil & Energy
Experience:
Weatherford International (Public Company; Oil & Energy industry): Project Engineer, (-)
Multiple-Positioning Mechanical Shifting System And Method
US Patent:
8141648, Mar 27, 2012
Filed:
May 8, 2009
Appl. No.:
12/437805
Inventors:
William John Darnell - Houston TX, US
Charles David Wintill - Houston TX, US
Rodney Wayne Long - Cypress TX, US
Todd Ulrich Chretien - Lafayette LA, US
Charles David Wintill - Houston TX, US
Rodney Wayne Long - Cypress TX, US
Todd Ulrich Chretien - Lafayette LA, US
Assignee:
Petroquip Energy Services, LP - Houston TX
International Classification:
E21B 34/14, E21B 43/12
US Classification:
166386, 1663324, 1663344, 166373
Abstract:
A multiple-positioning mechanical shifting system including for used in hydrocarbon wells. The system includes a shifting tool capable of selectively positioning a mechanical sliding sleeve valve in multiple operational positions that varying the flow rate and/or volume of tubing string fluid flowing to the well annulus. The system also includes a multiple position mechanical choke valve. A method of operating the mechanical choke valve using the shifting tool is described.
Downhole Tool Shifting Mechanism And Method For Shifting A Downhole Tool
US Patent:
8220555, Jul 17, 2012
Filed:
Jun 23, 2010
Appl. No.:
12/821647
Inventors:
Charles David Wintill - Houston TX, US
William John Darnell - Houston TX, US
William Ryle Darnell - St. Martinville LA, US
Rodney Wayne Long - Cypress TX, US
Todd Ulrich Chretien - Lafayette LA, US
William John Darnell - Houston TX, US
William Ryle Darnell - St. Martinville LA, US
Rodney Wayne Long - Cypress TX, US
Todd Ulrich Chretien - Lafayette LA, US
Assignee:
Petroquip Energy Services, LLP - Houston TX
International Classification:
E21B 23/00
US Classification:
166381, 1662427
Abstract:
A downhole shifting mechanism having an inner tubular member, an outer tubular member, a piston, a first set of teeth, a sliding block, a body lock ring, a first flow path, and a second flow path is described herein. A downhole assembly can include the downhole shifting mechanism with a downhole tool connected to a second end of the downhole shifting mechanism. Also described is a method for shifting a downhole tool disposed within a wellbore.
Multi-Zone, Single Trip Well Completion System And Methods Of Use
US Patent:
2007008, Apr 19, 2007
Filed:
May 5, 2006
Appl. No.:
11/418765
Inventors:
David Walker - Lafayette LA, US
Dewayne Turner - Tomball TX, US
Gregg Stout - Montgomery TX, US
Todd Chretien - Lafayette LA, US
Christopher Blackler - Spring TX, US
Jack Robbins - Houston TX, US
Dewayne Turner - Tomball TX, US
Gregg Stout - Montgomery TX, US
Todd Chretien - Lafayette LA, US
Christopher Blackler - Spring TX, US
Jack Robbins - Houston TX, US
International Classification:
E21B 43/14
US Classification:
166313000, 166332400, 166191000
Abstract:
An improved well completion system for completing two or more separate production zones in a well bore during a single downhole trip is disclosed. The improved completion system comprises a completion assembly comprising two or more production zone assemblies and a completion tool assembly. Each production zone assembly may comprise an automatic system locating assembly and at least two inverted seal systems for sealing against the tool assembly.
Hydraulic Sleeve Valve With Position Indication, Alignment, And Bypass
US Patent:
7520333, Apr 21, 2009
Filed:
Nov 10, 2006
Appl. No.:
11/558812
Inventors:
Dewayne M. Turner - Tomball TX, US
Richard J. Ross - Houston TX, US
Kenneth E. Rozek - Houston TX, US
Todd Chretien - Lafayette LA, US
Richard J. Ross - Houston TX, US
Kenneth E. Rozek - Houston TX, US
Todd Chretien - Lafayette LA, US
Assignee:
BJ Services Company - Houston TX
International Classification:
E21B 43/00
US Classification:
166375, 1663344
Abstract:
A hydraulic sleeve valve is disclosed that comprises a bypass relief system that provides an indication that the valve has reached a predetermined position, such as, for example, the fully opened or fully closed condition. The bypass relief may also provide a valve control fluid circulation function to filter or otherwise manipulate the control fluid. Also disclosed are flow port alignment systems that maintain the valve flow ports in predetermined relationships.
Bypass Device For Wellbores
US Patent:
7926569, Apr 19, 2011
Filed:
Jun 23, 2010
Appl. No.:
12/821601
Inventors:
Charles David Wintill - Houston TX, US
William John Darnell - Houston TX, US
William Ryle Darnell - St. Martinville LA, US
Rodney Wayne Long - Cypress TX, US
Todd Ulrich Chretien - Lafayette LA, US
William John Darnell - Houston TX, US
William Ryle Darnell - St. Martinville LA, US
Rodney Wayne Long - Cypress TX, US
Todd Ulrich Chretien - Lafayette LA, US
Assignee:
Petroquip Energy Services, LLP - Houston TX
International Classification:
E21B 34/10
US Classification:
166319, 166373
Abstract:
A bypass device for bypassing a hydraulic piston in a wellbore with an outer tubular body. The outer tubular body can have a fluid control manifold. The fluid control manifold can have two control paths, two high pressure fluid paths, and two valves connecting with two high pressure fluid connecting paths. An inner tubular body can be disposed within the outer tubular body, and a piston chamber can be disposed between the inner tubular body and the outer tubular body. The piston chamber can include two piston chamber sections separated by a hydraulic piston.
Plunger Lift System For Well
US Patent:
7954545, Jun 7, 2011
Filed:
Jan 25, 2008
Appl. No.:
12/020366
Inventors:
William Hearn - Cypress TX, US
Todd Chretien - Lafayette LA, US
Todd Chretien - Lafayette LA, US
Assignee:
Weatherford/Lamb, Inc. - Houston TX
International Classification:
E21B 43/00
US Classification:
166 68, 166105, 1663328, 166370, 166372, 417 56, 417 60
Abstract:
A plunger lift system has a bumper and a landing positioned in tubing below a safety valve of a well. A plunger moving between the bumper and landing lifts columns of liquid above the plunger when pushed by downhole pressure. A valve on the plunger's housing is movable between open and closed positions to either permit or prevent flow through the plunger. When the plunger engages the landing, a striker rod on the landing opens the valve permitting fluid communication through the plunger to a sales line at the surface. The valve is biased to the closed position to prevent fluid communication through the plunger. When the plunger is disengaged from the striker rod, the valve closes so that application of downhole pressure can again move the plunger uphole. A controller cycles the plunger between the bumper and the landing by controlling fluid flow in the well.
Filter Sub
US Patent:
7926595, Apr 19, 2011
Filed:
Jun 23, 2010
Appl. No.:
12/821620
Inventors:
Charles David Wintill - Houston TX, US
William John Darnell - Houston TX, US
William Ryle Darnell - St. Martinville LA, US
Rodney Wayne Long - Cypress TX, US
Todd Ulrich Chretien - Lafayette LA, US
William John Darnell - Houston TX, US
William Ryle Darnell - St. Martinville LA, US
Rodney Wayne Long - Cypress TX, US
Todd Ulrich Chretien - Lafayette LA, US
Assignee:
Petroquip Energy Services, LLP - Houston TX
International Classification:
E21B 43/34, E03B 3/18
US Classification:
175314, 166227
Abstract:
A downhole filter with a filter housing having a top filter and a bottom filter disposed therein. The filter housing can be in fluid communication with each filter. Each filter can be in fluid communication with a burst disk housing having a burst disk module and a burst disk. Each burst disk housing can be in fluid communication with the filter housing. Fluid can flow through the filter housing and through the filter. When a filter is clogged, the fluid can burst a burst disk, thereby bypassing the filter. The downhole filter can include a middle sub in fluid communication with the top filter and a second portion of the filter housing. The middle sub can threadably engage a bottom burst disk housing.