Inventor

Charles Flaum

Inventor

Ridgefield, CT, US

Overview

1983–2010

Patent span

Physics

Primary field (CPC G)

Patents· 26 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Vprimary

G01VGeophysics56%

G01NInvestigating or analysing materials by determining their chemical or physical properties21%

G01RMeasuring electric variables12%

E21BEarth or rock drilling7%

Y02ATechnologies for adaptation to climate change5%

PatentTitleYear

7,804,296'Methods and apparatus for monitoring a property of a formation fluid'2010 7,765,862'Determination of formation pressure during a drilling operation'2010 7,642,507'Apparatus and methods for interlaced density and neutron measurements'2010 7,511,487'Logging method for determining characteristic of fluid in a downhole measurement region'2009 7,408,150'Well logging method for determining formation characteristics using pulsed neutron capture measurements'2008 7,361,886'Corrections of gamma-ray responses'2008 6,891,369'Nuclear magnetic resonance method and logging apparatus for fluid analysis'2005 6,850,060'Method and apparatus for rapid characterization of diffusion'2005 6,600,315'Method for improving resolution of nuclear magnetic resonance measurements by combining low resolution high accuracy measurements with high resolution low accuracy measurements'2003 6,570,382'Nuclear magnetic resonance method and logging apparatus'2003 6,268,603'Method and apparatus for interpreting fluorescence logging data'2001 6,232,778'Method for obtaining NMR bound fluid volume using partial polarization'2001 6,147,489'Method and apparatus for measuring total nuclear magnetic resonance porosity'2000 6,140,817'Magnetic resonance well logging method and apparatus'2000 6,097,184'Nuclear magnetic resonance well logging to determine gas-filled porosity and oil-filled porosity of earth formations without a constant static magnetic field gradient'2000 6,088,656'Method for interpreting carbonate reservoirs'2000 6,023,163'Well logging method and apparatus for determining gas and diffusion coefficient using NMR'2000 5,789,669'Method and apparatus for determining formation pressure'1998 5,019,708'Method for eliminating the effect of rugosity from compensated formation logs by geometrical response matching'1991 4,909,075'Method for determining formation characteristics with enhanced statistical precision without degrading the vertical resolution or with enhanced vertical resolution'1990 4,816,674'Determining a formation porosity from neutron logging information'1989 4,794,792'Method for determining formation characteristics with enhanced vertical resolution'1989 4,786,796'Method for determining formation characteristics with enhanced vertical resolution'1988 4,464,569'Method and apparatus for spectroscopic analysis of a geological formation'1984 4,423,323'Neutron logging method and apparatus for determining a formation characteristic free of environmental effects'1983 4,384,205'Neutron method and apparatus for determining total cross-section'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2010Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (25)· patent assignee history

1983–1984Based in Danbury, CT, US· patent location history

1988–1991Based in Houston, TX, US· patent location history

1998–2010Based in Ridgefield, CT, US· patent location history

2008–2010Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SCHLUMBERGER TECHNOLOGY CORP	25	1983–2010

Locations

Location	Patents	Span
Ridgefield, CT, US	14	1998–2010
Houston, Texas, US	5	1988–1991
Beijing, CN	4	2008–2010
Danbury, CT, US	3	1983–1984