Inventor
Roland E. Chemali
Inventor
Humble, TX, US
Overview
Patents· 43 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Vprimary
G01VGeophysics60%
E21BEarth or rock drilling27%
Y02ATechnologies for adaptation to climate change5%
B60CVehicle tyres3%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
G01RMeasuring electric variables2%
G08GTraffic control systems2%
PatentTitleYear
10,768,336Formation logging using multicomponent signal-based measurement of anisotropic permittivity and resistivity202010,385,681Cross-coupling based fluid front monitoring201910,353,111Automated leg quality monitoring systems and methods201910,202,846Stoneley wave based pipe telemetry201910,183,535Air motion powered devices for vehicle wheels201910,107,094Formation density or acoustic impedance logging tool201810,041,343Micro-sonic density imaging while drilling systems and methods201810,023,017Air-drag powered devices for vehicle wheels20189,765,609'Downhole optical imaging tools and methods'20179,239,403'Apparatus and methods of controlling recordation of resistivity-related readings in determining formation resistivity'20169,146,332'Remotely located tuning circuits for multi-frequency, multi-purpose induction antennae in downhole tools'20158,332,152'Method and apparatus for eliminating drill effect in pulse induction measurements'20128,164,339'Apparatus and system for geosteering and formation evaluation utilizing improved antennas'20128,134,476'Apparatus and methods for self-powered communication and sensor network'20128,008,919'Method for compensating drill pipe and near-borehole effect on and electronic noise in transient resistivity measurements'20117,994,790'Electromagnetic and magnetostatic shield to perform measurements ahead of the drill bit'20117,973,532'Downhole spread spectrum induction instruments'20117,915,895'Method of calibrating an azimuthal inductive cross-coil or tilted coil instrument'20117,894,990'Method of generating a deep resistivity image in LWD measurements'20117,839,149'Multi-component resistivity logging tool with multiple antennas using common antenna grooves'20107,723,991'Apparatus and method for azimuthal MWD resistivity imaging at multiple depths of investigation'20107,679,527'Method and apparatus for automated parking assistance'20107,483,793'Method of generating a deep resistivity image in LWD measurements'20097,405,563'Compensation of magnetic influence in a MWD system'20087,400,262'Apparatus and methods for self-powered communication and sensor network'20087,375,530'Method for signal enhancement in azimuthal propagation resistivity while drilling'20087,114,565'Measurement-while-drilling assembly using real-time toolface oriented measurements'20067,063,174'Method for reservoir navigation using formation pressure testing measurement while drilling'20066,957,708'Electrical imaging in conductive and non-conductive mud'20056,850,068'Formation resistivity measurement sensor contained onboard a drill bit (resistivity in bit)'20056,377,050'LWD resistivity device with inner transmitters and outer receivers, and azimuthal sensitivity'20026,020,741'Wellbore imaging using magnetic permeability measurements'20005,892,460'Logging while drilling tool with azimuthal sensistivity'19995,448,171'Method for variable radial depth induction log'19955,446,654'Shoulder effect logging method'19955,428,293'Logging while drilling apparatus with multiple depth of resistivity investigation'19955,239,267'Method for improving the accuracy of dip determination using adjustable high pass filters'19935,191,290'Logging apparatus for measurement of earth formation resistivity'19935,045,795'Azimuthally oriented coil array for MWD resistivity logging'19915,038,107'Method and apparatus for making induction measurements through casing'19914,918,669'Method and apparatus for sonic dip measurement'19904,646,026'Method and apparatus for measuring resistivity of an earth formation'19874,319,192'Deep and/or shallow electrical resistivity investigation suitable for dual resistivity-induction logging'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1995Based in Austin, TX, US· patent location history
1990–1995Patents assigned to HALLIBURTON LOGGING SERVICES (6)· patent assignee history
1995–2012Based in Houston, TX, US· patent location history
2000–2002Based in Fort Worth, TX, US· patent location history
2005–2015Patents assigned to BAKER HUGHES INC (19)· patent assignee history
2005–2015Based in Kingwood, TX, US· patent location history
2010–2016Patents assigned to CHEMALI ROLAND EDWARD (3)· patent assignee history
2010–2020Based in Humble, TX, US· patent location history
2012–2019Patents assigned to CHEMALI ROLAND E (6)· patent assignee history
2017–2020Patents assigned to HALLIBURTON ENERGY SERVICES INC (7)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAKER HUGHES INC | 19 | 2005–2015 |
| HALLIBURTON ENERGY SERVICES INC | 7 | 2017–2020 |
| CHEMALI ROLAND Eself | 6 | 2012–2019 |
| HALLIBURTON LOGGING SERVICES | 6 | 1990–1995 |
| CHEMALI ROLAND EDWARDself | 3 | 2010–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Humble, Texas, US | 19 | 2010–2020 |
| Kingwood, Texas, US | 10 | 2005–2015 |
| Austin, Texas, US | 7 | 1987–1995 |
| Houston, Texas, US | 4 | 1995–2012 |
| Fort Worth, Texas, US | 2 | 2000–2002 |