Inventor
OMERAGIC DZEVAT
US66 patents
⚠️ This page may combine multiple inventors who share the name “OMERAGIC DZEVAT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
44 patentsUS6566881B2May 20, 2003
Shielding method and apparatus using transverse slots
SCHLUMBERGER TECHNOLOGY CORP126 citations99
US6297639B1Oct 2, 2001
Method and apparatus for directional well logging with a shield having sloped slots
SCHLUMBERGER TECHNOLOGY CORP213 citations99
US7093672B2Aug 22, 2006
Systems for deep resistivity while drilling for proactive geosteering
SCHLUMBERGER TECHNOLOGY CORP84 citations98
US6998844B2Feb 14, 2006
Propagation based electromagnetic measurement of anisotropy using transverse or tilted magnetic dipoles
SCHLUMBERGER TECHNOLOGY CORP78 citations98
US6969994B2Nov 29, 2005
Directional electromagnetic measurements insensitive to dip and anisotropy
SCHLUMBERGER TECHNOLOGY CORP106 citations98
US6788065B1Sep 7, 2004
Slotted tubulars for subsurface monitoring in directed orientations
SCHLUMBERGER TECHNOLOGY CORP78 citations98
US6594584B1Jul 15, 2003
Method for calculating a distance between a well logging instrument and a formation boundary by inversion processing measurements from the logging instrument
SCHLUMBERGER TECHNOLOGY CORP137 citations98
US6573722B2Jun 3, 2003
Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole
SCHLUMBERGER TECHNOLOGY CORP88 citations98
US6541979B2Apr 1, 2003
Multi-coil electromagnetic focusing methods and apparatus to reduce borehole eccentricity effects
SCHLUMBERGER TECHNOLOGY CORP93 citations98
US6351127B1Feb 26, 2002
Shielding method and apparatus for selective attenuation of an electromagnetic energy field component
SCHLUMBERGER TECHNOLOGY CORP91 citations98
US7366616B2Apr 29, 2008
Computer-based method for while-drilling modeling and visualization of layered subterranean earth formations
SCHLUMBERGER TECHNOLOGY CORP62 citations96
US7202670B2Apr 10, 2007
Method for characterizing a subsurface formation with a logging instrument disposed in a borehole penetrating the formation
SCHLUMBERGER TECHNOLOGY CORP77 citations96
US6680613B2Jan 20, 2004
Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole
SCHLUMBERGER TECHNOLOGY CORP56 citations96
US6624634B2Sep 23, 2003
Borehole current correction methods and apparatus
SCHLUMBERGER TECHNOLOGY CORP38 citations96
US6584408B2Jun 24, 2003
Subsurface formation parameters from tri-axial measurements
SCHLUMBERGER TECHNOLOGY CORP57 citations96
US6557794B2May 6, 2003
Coil shielding method for selective attenuation of an electromagnetic energy field component
SCHLUMBERGER TECHNOLOGY CORP42 citations96
US6556015B1Apr 29, 2003
Method and system for determining formation anisotropic resistivity with reduced borehole effects from tilted or transverse magnetic dipoles
SCHLUMBERGER TECHNOLOGY CORP67 citations96
US6380744B2Apr 30, 2002
Shielding apparatus for selective attenuation of an electromagnetic energy field component
SCHLUMBERGER TECHNOLOGY CORP42 citations96
US7382135B2Jun 3, 2008
Directional electromagnetic wave resistivity apparatus and method
SCHLUMBERGER TECHNOLOGY CORP97 citations95
US9057797B2Jun 16, 2015
Multilevel workflow method to extract resistivity anisotropy data from three-dimensional induction measurements
SCHLUMBERGER TECHNOLOGY CORP31 citations94
US7991555B2Aug 2, 2011
Electromagnetic directional measurements for non-parallel bed formations
SCHLUMBERGER TECHNOLOGY CORP21 citations93
US7536261B2May 19, 2009
Anti-symmetrized electromagnetic measurements
SCHLUMBERGER TECHNOLOGY CORP33 citations93
US6924646B2Aug 2, 2005
System and method for locating a fracture in an earth formation
SCHLUMBERGER TECHNOLOGY CORP29 citations93
US6798208B2Sep 28, 2004
System and method for locating a fracture in an earth formation
SCHLUMBERGER TECHNOLOGY CORP26 citations93
US6630830B2Oct 7, 2003
Shielding method and apparatus using flexible strip
SCHLUMBERGER TECHNOLOGY CORP30 citations93
US9715034B2Jul 25, 2017
Method for multi-tubular evaluation using induction measurements
SCHLUMBERGER TECHNOLOGY CORP27 citations92
US7073609B2Jul 11, 2006
Apparatus and methods for imaging wells drilled with oil-based muds
SCHLUMBERGER TECHNOLOGY CORP30 citations92
US6836218B2Dec 28, 2004
Modified tubular equipped with a tilted or transverse magnetic dipole for downhole logging
SCHLUMBERGER TECHNOLOGY CORP51 citations92
US6819110B2Nov 16, 2004
Electromagnetic resistivity logging instrument with transverse magnetic dipole component antennas providing axially extended response
SCHLUMBERGER TECHNOLOGY CORP43 citations92
US6727705B2Apr 27, 2004
Subsurface monitoring and borehole placement using a modified tubular equipped with tilted or transverse magnetic dipoles
SCHLUMBERGER TECHNOLOGY CORP30 citations92
US6710601B2Mar 23, 2004
Borehole current correction for tilted or transverse magnetic dipoles on conductive supports
SCHLUMBERGER TECHNOLOGY CORP33 citations92
US6597178B1Jul 22, 2003
Sensor for detecting the magnetic field in the area of downhole casing
SCHLUMBERGER TECHNOLOGY CORP46 citations92
US7925483B2Apr 12, 2011
Methods for visualizing distances between wellbore and formation boundaries
SCHLUMBERGER TECHNOLOGY CORP26 citations89
US7630872B2Dec 8, 2009
Methods for visualizing distances between wellbore and formation boundaries
SCHLUMBERGER TECHNOLOGY CORP22 citations89
US6927578B2Aug 9, 2005
Detection of borehole currents due to a decentered transverse magnetic dipole transmitter
SCHLUMBERGER TECHNOLOGY CORP17 citations84
US9678239B2Jun 13, 2017
System and method for imaging properties of subterranean formations
SCHLUMBERGER TECHNOLOGY CORP11 citations83
US9977144B2May 22, 2018
Nested tubular analysis via electromagnetic logging
SCHLUMBERGER TECHNOLOGY CORP9 citations80
US11656199B2May 23, 2023
System and method for obtaining and analyzing flux leakage data in the inspection of oil and gas wells
SCHLUMBERGER TECHNOLOGY CORP3 citations73
US11448794B2Sep 20, 2022
Two dimensional pixel-based inversion
SCHLUMBERGER TECHNOLOGY CORP2 citations73
US10036826B2Jul 31, 2018
Inversion techniques for real-time well placement and reservoir characterization
SCHLUMBERGER TECHNOLOGY CORP6 citations73
US7759943B2Jul 20, 2010
Subsurface electromagnetic measurements using cross-magnetic dipoles
SCHLUMBERGER TECHNOLOGY CORP7 citations72
US7091722B2Aug 15, 2006
Method and apparatus for measuring mud resistivity
SCHLUMBERGER TECHNOLOGY CORP7 citations72
US7599825B2Oct 6, 2009
Shoulder bed effects removal
SCHLUMBERGER TECHNOLOGY CORP7 citations71
US11306582B2Apr 19, 2022
Methods and systems employing look-around and look-ahead inversion of downhole measurements
SCHLUMBERGER TECHNOLOGY CORP2 citations70
OMERAGIC DZEVAT
2 patentsSCHLUMBERGER TECHNOLOGY CT
1 patentSEYDOUX JEAN
1 patentHABASHY TAREK
1 patentDAVYDYCHEVA SOFIA
1 patentShowing the top 50 of 66 patents by PatentIndex Score.