Randolph J. Sheffield

Person

Missouri City, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Remotely actuating a valve
- Patent number 8,517,113
- Issue date Aug 27, 2013
- Schlumberger Technology Corporation
- Randolph J. Sheffield
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method to seal using a swellable material
- Patent number 8,499,843
- Issue date Aug 6, 2013
- Schlumberger Technology Corporation
- Dinesh R. Patel
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method to seal using a swellable material
- Patent number 7,665,537
- Issue date Feb 23, 2010
- Schlumbeger Technology Corporation
- Dinesh R. Patel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Zonal isolation tools and methods of use
- Patent number 7,591,321
- Issue date Sep 22, 2009
- Schlumberger Technology Corporation
- John R. Whitsitt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wireless communications associated with a wellbore
- Patent number 7,477,160
- Issue date Jan 13, 2009
- Schlumberger Technology Corporation
- Erwann Lemenager
- G01 - MEASURING TESTING
Information Patent Grant
System and method for utilizing a skin sensor in a downhole applica...
- Patent number 7,353,869
- Issue date Apr 8, 2008
- Schlumberger Technology Corporation
- Rodney J. Wetzel
- G01 - MEASURING TESTING
Information Patent Grant
Borehole communication and measurement system
- Patent number 7,348,893
- Issue date Mar 25, 2008
- Schlumberger Technology Corporation
- Songming Huang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wireless communications associated with a wellbore
- Patent number 7,347,271
- Issue date Mar 25, 2008
- Schlumberger Technology Corporation
- Herve Ohmer
- E21 - EARTH DRILLING MINING
Information Patent Grant
Remotely actuating a casing conveyed tool
- Patent number 7,273,102
- Issue date Sep 25, 2007
- Schlumberger Technology Corporation
- Randolph J. Sheffield
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tubing conveyed fracturing tool and method
- Patent number 6,776,239
- Issue date Aug 17, 2004
- Schlumberger Technology Corporation
- David M. Eslinger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cup packer
- Patent number 6,668,938
- Issue date Dec 30, 2003
- Schlumberger Technology Corporation
- Randolph J. Sheffield
- E21 - EARTH DRILLING MINING
Information Patent Grant
Straddle packer tool and method for well treating having valving an...
- Patent number 6,655,461
- Issue date Dec 2, 2003
- Schlumberger Technology Corporation
- David M. Eslinger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Flow-operated valve
- Patent number 6,533,037
- Issue date Mar 18, 2003
- Schlumberger Technology Corporation
- David M. Eslinger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole machining of well completion equipment
- Patent number 6,439,313
- Issue date Aug 27, 2002
- Schlumberger Technology Corporation
- Hubertus V. Thomeer
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pressure compensated disconnect system and method
- Patent number 6,425,443
- Issue date Jul 30, 2002
- Schlumberger Technology Corporation
- Stephen D. Hill
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD TO SEAL USING A SWELLABLE MATERIAL
- Publication number 20100139930
- Publication date Jun 10, 2010
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Dinesh R. Patel
- E21 - EARTH DRILLING MINING
Information Patent Application
Wireless Communications Associated with a Wellbore
- Publication number 20070024464
- Publication date Feb 1, 2007
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Erwann Lemenager
- E21 - EARTH DRILLING MINING
Information Patent Application
Zonal Isolation Tools and Methods of Use
- Publication number 20060260820
- Publication date Nov 23, 2006
- SCHLUMBERGER TECHNOLOGY CORPORATION
- John R. Whitsitt
- E21 - EARTH DRILLING MINING
Information Patent Application
Borehole communication and measurement system
- Publication number 20060131014
- Publication date Jun 22, 2006
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Songming Huang
- E21 - EARTH DRILLING MINING
Information Patent Application
Remotely Actuating a Valve
- Publication number 20060131030
- Publication date Jun 22, 2006
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Randolph J. Sheffield
- E21 - EARTH DRILLING MINING
Information Patent Application
Control Line Telemetry
- Publication number 20060124318
- Publication date Jun 15, 2006
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Randolph J. Sheffield
- E21 - EARTH DRILLING MINING
Information Patent Application
Plunger Lift Apparatus That Includes One or More Sensors
- Publication number 20060090893
- Publication date May 4, 2006
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Randolph J. Sheffield
- E21 - EARTH DRILLING MINING
Information Patent Application
System and Method for Utilizing a Skin Sensor in a Downhole Applica...
- Publication number 20060090892
- Publication date May 4, 2006
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Rodney J. Wetzel
- E21 - EARTH DRILLING MINING
Information Patent Application
Wireless Communications Associated With A Wellbore
- Publication number 20060086497
- Publication date Apr 27, 2006
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Herve Ohmer
- E21 - EARTH DRILLING MINING
Information Patent Application
Remotely Actuating a Casing Conveyed Tool
- Publication number 20050263286
- Publication date Dec 1, 2005
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Randolph J. Sheffield
- E21 - EARTH DRILLING MINING
Information Patent Application
System and Method to Seal Using a Swellable Material
- Publication number 20050199401
- Publication date Sep 15, 2005
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Dinesh R. Patel
- E21 - EARTH DRILLING MINING
Information Patent Application
Extended life electronic tags
- Publication number 20050189679
- Publication date Sep 1, 2005
- Michael H. Kenison
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Straddle packer tool for well treating having valving and fluid byp...
- Publication number 20020153142
- Publication date Oct 24, 2002
- David M. Eslinger
- E21 - EARTH DRILLING MINING
Information Patent Application
Cup packer
- Publication number 20020139541
- Publication date Oct 3, 2002
- Randolph J. Sheffield
- E21 - EARTH DRILLING MINING
Information Patent Application
Extended life electronic tags
- Publication number 20020133942
- Publication date Sep 26, 2002
- Michael H. Kenison
- G01 - MEASURING TESTING
Information Patent Application
Tubing conveyed fracturing tool and method
- Publication number 20020125005
- Publication date Sep 12, 2002
- David M. Eslinger
- E21 - EARTH DRILLING MINING
Information Patent Application
Flow-operated valve
- Publication number 20020062963
- Publication date May 30, 2002
- David M. Eslinger
- E21 - EARTH DRILLING MINING

Randolph J. Sheffield

Person

Patents Grantslast 30 patents

Remotely actuating a valve

System and method to seal using a swellable material

System and method to seal using a swellable material

Zonal isolation tools and methods of use

Wireless communications associated with a wellbore

System and method for utilizing a skin sensor in a downhole applica...

Borehole communication and measurement system

Wireless communications associated with a wellbore

Remotely actuating a casing conveyed tool

Tubing conveyed fracturing tool and method

Cup packer

Straddle packer tool and method for well treating having valving an...

Flow-operated valve

Downhole machining of well completion equipment

Pressure compensated disconnect system and method

Patents Applicationslast 30 patents

SYSTEM AND METHOD TO SEAL USING A SWELLABLE MATERIAL

Wireless Communications Associated with a Wellbore

Zonal Isolation Tools and Methods of Use

Borehole communication and measurement system

Remotely Actuating a Valve

Control Line Telemetry

Plunger Lift Apparatus That Includes One or More Sensors

System and Method for Utilizing a Skin Sensor in a Downhole Applica...

Wireless Communications Associated With A Wellbore

Remotely Actuating a Casing Conveyed Tool

System and Method to Seal Using a Swellable Material

Extended life electronic tags

Straddle packer tool for well treating having valving and fluid byp...

Cup packer

Extended life electronic tags

Tubing conveyed fracturing tool and method

Flow-operated valve