LexDanaLexDanabeta
Inventor

Dzevat Omeragic

Inventor
Sugar Land, TX, US

Overview

57→
Patents
2001–2021
Patent span
Physics
Primary field (CPC G)

Patents· 57 as inventor

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

G01Vprimary
G01VGeophysics77%
E21BEarth or rock drilling18%
H01QAntennas, i.e. radio aerials3%
G06FElectric digital data processing1%
G06TImage data processing or generation, in general1%
PatentTitleYear
10,914,861Inversion-based workflow for consistent interpretation of nuclear density images in horizontal wells202110,809,416Inversion-based workflow for processing nuclear density images in high-angle and horizontal wells202010,571,595Workflow for navigation with respect to oil-water contact using deep directional resistivity measurements202010,527,753Methods and apparatuses to generate a formation model202010,481,290Generalized directional measurements and using symmetrized and anti-symmetrized angles to indicate orientation of anisotropy and formation boundaries201910,450,860Integrating reservoir modeling with modeling a perturbation201910,370,963Method for selecting bed boundaries and log squaring using electromagnetic measurements201910,267,945Use of transverse antenna measurements for casing and pipe detection201910,073,189Inversion-based calibration of downhole electromagnetic tools201810,036,826Inversion techniques for real-time well placement and reservoir characterization20189,977,144Nested tubular analysis via electromagnetic logging20189,869,792'Inversion-based workflow for processing nuclear density images in high-angle and horizontal wells'20189,715,034'Method for multi-tubular evaluation using induction measurements'20179,678,239'System and method for imaging properties of subterranean formations'20179,134,449'Directional resistivity measurement for well placement and formation evaluation'20159,057,797'Multilevel workflow method to extract resistivity anisotropy data from three-dimensional induction measurements'20158,754,651'System and method for imaging properties of subterranean formations'20148,489,375'Formation modeling while drilling for enhanced high angle for horizontal well placement'20138,433,518'Multilevel workflow method to extract resistivity anisotropy data from 3D induction measurements'20138,200,437'Method for borehole correction, formation dip and azimuth determination and resistivity determination using multiaxial induction measurements'20127,991,555'Electromagnetic directional measurements for non-parallel bed formations'20117,925,483'Methods for visualizing distances between wellbore and formation boundaries'20117,759,943'Subsurface electromagnetic measurements using cross-magnetic dipoles'20107,630,872'Methods for visualizing distances between wellbore and formation boundaries'20097,599,825'Shoulder bed effects removal'20097,536,261'Anti-symmetrized electromagnetic measurements'20097,382,135'Directional electromagnetic wave resistivity apparatus and method'20087,366,616'Computer-based method for while-drilling modeling and visualization of layered subterranean earth formations'20087,239,145'Subsurface electromagnetic measurements using cross-magnetic dipoles'20077,202,670'Method for characterizing a subsurface formation with a logging instrument disposed in a borehole penetrating the formation'20077,093,672'Systems for deep resistivity while drilling for proactive geosteering'20067,091,722'Method and apparatus for measuring mud resistivity'20067,073,609'Apparatus and methods for imaging wells drilled with oil-based muds'20066,998,844'Propagation based electromagnetic measurement of anisotropy using transverse or tilted magnetic dipoles'20066,969,994'Directional electromagnetic measurements insensitive to dip and anisotropy'20056,927,578'Detection of borehole currents due to a decentered transverse magnetic dipole transmitter'20056,924,646'System and method for locating a fracture in an earth formation'20056,836,218'Modified tubular equipped with a tilted or transverse magnetic dipole for downhole logging'20046,819,110'Electromagnetic resistivity logging instrument with transverse magnetic dipole component antennas providing axially extended response'20046,798,208'System and method for locating a fracture in an earth formation'20046,788,065'Slotted tubulars for subsurface monitoring in directed orientations'20046,727,705'Subsurface monitoring and borehole placement using a modified tubular equipped with tilted or transverse magnetic dipoles'20046,710,601'Borehole current correction for tilted or transverse magnetic dipoles on conductive supports'20046,680,613'Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole'20046,630,830'Shielding method and apparatus using flexible strip'20036,624,634'Borehole current correction methods and apparatus'20036,597,178'Sensor for detecting the magnetic field in the area of downhole casing'20036,594,584'Method for calculating a distance between a well logging instrument and a formation boundary by inversion processing measurements from the logging instrument'20036,584,408'Subsurface formation parameters from tri-axial measurements'20036,573,722'Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole'20036,566,881'Shielding method and apparatus using transverse slots'20036,557,794'Coil shielding method for selective attenuation of an electromagnetic energy field component'20036,556,015'Method and system for determining formation anisotropic resistivity with reduced borehole effects from tilted or transverse magnetic dipoles'20036,541,979'Multi-coil electromagnetic focusing methods and apparatus to reduce borehole eccentricity effects'20036,380,744'Shielding apparatus for selective attenuation of an electromagnetic energy field component'20026,351,127'Shielding method and apparatus for selective attenuation of an electromagnetic energy field component'20026,297,639'Method and apparatus for directional well logging with a shield having sloped slots'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2021Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (56)· patent assignee history
2001–2011Based in Sugar Land, TX, US· patent location history
2008–2021Based in Lexington, MA, US· patent location history
2012–2019Patents assigned to OMERAGIC DZEVAT (6)· patent assignee history
2012–2013Patents assigned to DAVYDYCHEVA SOFIA (2)· patent assignee history
2013–2014Patents assigned to CHEN YONG-HUA (2)· patent assignee history
2013–2014Patents assigned to HABASHY TAREK (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHLUMBERGER TECHNOLOGY CORP562001–2021
OMERAGIC DZEVATself62012–2019
CHEN YONG-HUA22013–2014
DAVYDYCHEVA SOFIA22012–2013
HABASHY TAREK22013–2014
Locations
LocationPatentsSpan
Sugar Land, Texas, US332001–2011
Lexington, Massachusetts, US242008–2021