Darwin Ellis

Person

Ridgefield, CT, US

People

Patents Grantslast 30 patents

Information Patent Grant
Formation characterization for fast forward neutron models
- Patent number 10,422,920
- Issue date Sep 24, 2019
- Schlumberger Technology Corporation
- Darwin V. Ellis
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Estimating sigma log beyond the measurements points
- Patent number 8,521,435
- Issue date Aug 27, 2013
- Schlumberger Technology Corporation
- Chanh Cao Minh
- G01 - MEASURING TESTING
Information Patent Grant
Method of extracting formation density and Pe using a pulsed accele...
- Patent number 8,063,356
- Issue date Nov 22, 2011
- Schlumberger Technology Corporation
- Tong Zhou
- G01 - MEASURING TESTING
Information Patent Grant
Method of determining petro-physical information with high energy g...
- Patent number 7,902,496
- Issue date Mar 8, 2011
- Schlumberger Technology Corporation
- Tancredi Botto
- G01 - MEASURING TESTING
Information Patent Grant
Measuring formation density through casing
- Patent number 7,292,942
- Issue date Nov 6, 2007
- Schlumberger Technology Corporation
- Darwin V. Ellis
- G01 - MEASURING TESTING
Information Patent Grant
Neutron measurement method for determining porosity of a formation...
- Patent number 7,112,783
- Issue date Sep 26, 2006
- Schlumberger Technology Corporation
- Darwin Ellis
- G01 - MEASURING TESTING
Information Patent Grant
Wellbore caliper measurement method using measurements from a gamma...
- Patent number 6,552,334
- Issue date Apr 22, 2003
- Schlumberger Technology Corporation
- Darwin V. Ellis
- G01 - MEASURING TESTING
Information Patent Grant
Compensated gamma-gamma density sonde using three detectors
- Patent number 5,390,115
- Issue date Feb 14, 1995
- Schlumberger Technology Corporation
- Charles R. Case
- G01 - MEASURING TESTING
Information Patent Grant
Determining a formation porosity from neutron logging information
- Patent number 4,816,674
- Issue date Mar 28, 1989
- Schlumberger Technology Corporation
- Darwin V. Ellis
- G01 - MEASURING TESTING
Information Patent Grant
Logging apparatus and method for determining absolute elemental con...
- Patent number 4,810,876
- Issue date Mar 7, 1989
- Schlumberger Technology Corporation
- Peter D. Wraight
- G01 - MEASURING TESTING
Information Patent Grant
Clay type and volume evaluation
- Patent number 4,645,927
- Issue date Feb 24, 1987
- Schlumberger Technology Corporation
- Darwin V. Ellis
- G01 - MEASURING TESTING
Information Patent Grant
Correction of natural gamma radiation logs for the effects of gamma...
- Patent number 4,542,292
- Issue date Sep 17, 1985
- Schlumberger Technology Corporation
- Darwin V. Ellis
- G01 - MEASURING TESTING
Information Patent Grant
Neutron logging method and apparatus for determining a formation ch...
- Patent number 4,423,323
- Issue date Dec 27, 1983
- Schlumberger Technology Corporation
- Darwin V. Ellis
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Formation Characterization For Fast Forward Neutron Models
- Publication number 20140088877
- Publication date Mar 27, 2014
- Darwin V. Ellis
- G01 - MEASURING TESTING
Information Patent Application
METHOD OF EXTRACTING FORMATION DENSITY AND PE USING A PULSED ACCELE...
- Publication number 20110307179
- Publication date Dec 15, 2011
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Tong Zhou
- G01 - MEASURING TESTING
Information Patent Application
ESTIMATING SIGMA LOG BEYOND THE MEASUREMENTS POINTS
- Publication number 20110004408
- Publication date Jan 6, 2011
- Chanh Cao Minh
- G01 - MEASURING TESTING
Information Patent Application
Method of Determining Petro-Physical Information with High Energy G...
- Publication number 20090039242
- Publication date Feb 12, 2009
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Tancredi Botto
- G01 - MEASURING TESTING
Information Patent Application
Neutron measurement method for determining porosity of a formation...
- Publication number 20050051718
- Publication date Mar 10, 2005
- Darwin Ellis
- G01 - MEASURING TESTING
Information Patent Application
Measuring formation density through casing
- Publication number 20040210393
- Publication date Oct 21, 2004
- Darwin V. Ellis
- G01 - MEASURING TESTING
Information Patent Application
Wellbore caliper measurement method using measurements from a gamma...
- Publication number 20020165670
- Publication date Nov 7, 2002
- Darwin V. Ellis
- G01 - MEASURING TESTING

Darwin Ellis

Person

Patents Grantslast 30 patents

Formation characterization for fast forward neutron models

Estimating sigma log beyond the measurements points

Method of extracting formation density and Pe using a pulsed accele...

Method of determining petro-physical information with high energy g...

Measuring formation density through casing

Neutron measurement method for determining porosity of a formation...

Wellbore caliper measurement method using measurements from a gamma...

Compensated gamma-gamma density sonde using three detectors

Determining a formation porosity from neutron logging information

Logging apparatus and method for determining absolute elemental con...

Clay type and volume evaluation

Correction of natural gamma radiation logs for the effects of gamma...

Neutron logging method and apparatus for determining a formation ch...

Patents Applicationslast 30 patents

Formation Characterization For Fast Forward Neutron Models

METHOD OF EXTRACTING FORMATION DENSITY AND PE USING A PULSED ACCELE...

ESTIMATING SIGMA LOG BEYOND THE MEASUREMENTS POINTS

Method of Determining Petro-Physical Information with High Energy G...

Neutron measurement method for determining porosity of a formation...

Measuring formation density through casing

Wellbore caliper measurement method using measurements from a gamma...