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Ravi P. Nanayakkara
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Kingwood, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Using solenoid characteristics for performance diagnostics on rotar...
Patent number
11,788,357
Issue date
Oct 17, 2023
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING
Information
Patent Grant
Telemetry using pulse shape modulation
Patent number
11,655,708
Issue date
May 23, 2023
Halliburton Energy Services, Inc.
Li Gao
E21 - EARTH DRILLING MINING
Information
Patent Grant
Compressible load shoulder for dampening shock in downhole telemetr...
Patent number
11,448,064
Issue date
Sep 20, 2022
Halliburton Energy Services, Inc.
Alexander J. Schaeffer
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotary steerable drilling tool and method
Patent number
11,371,334
Issue date
Jun 28, 2022
Halliburton Energy Services, Inc.
Jim Darin Tilley
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole power generation and directional drilling tool
Patent number
11,352,856
Issue date
Jun 7, 2022
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Driven rotary steering system having variable-aperture valve orifices
Patent number
11,332,979
Issue date
May 17, 2022
Halliburton Energy Services, Inc.
Neelesh V. Deolalikar
E21 - EARTH DRILLING MINING
Information
Patent Grant
Autonomously driven rotary steering system
Patent number
11,293,229
Issue date
Apr 5, 2022
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotary steerable tool with independent actuators
Patent number
11,293,230
Issue date
Apr 5, 2022
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING
Information
Patent Grant
Toolface control with pulse width modulation
Patent number
10,871,063
Issue date
Dec 22, 2020
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotary steerable drilling tool and method
Patent number
10,655,447
Issue date
May 19, 2020
Halliburton Energy Services, Inc.
Jim Darin Tilley
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hybrid drive for a fully rotating downhole tool
Patent number
10,563,461
Issue date
Feb 18, 2020
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mitigating stick-slip effects in rotary steerable tools
Patent number
9,970,236
Issue date
May 15, 2018
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
TELEMETRY USING PULSE SHAPE MODULATION
Publication number
20220098978
Publication date
Mar 31, 2022
Halliburton Energy Services, Inc.
Li Gao
E21 - EARTH DRILLING MINING
Information
Patent Application
USING SOLENOID CHARACTERISTICS FOR PERFORMANCE DIAGNOSTICS ON ROTAR...
Publication number
20220003043
Publication date
Jan 6, 2022
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING
Information
Patent Application
COMPRESSIBLE LOAD SHOULDER FOR DAMPENING SHOCK IN DOWNHOLE TELEMETR...
Publication number
20210215038
Publication date
Jul 15, 2021
Halliburton Energy Services, Inc.
Alexander J. Schaeffer
E21 - EARTH DRILLING MINING
Information
Patent Application
DRIVEN ROTARY STEERING SYSTEM HAVING VARIABLE-APERTURE VALVE ORIFICES
Publication number
20210172254
Publication date
Jun 10, 2021
Halliburton Energy Services, Inc.
Neelesh V. Deolalikar
E21 - EARTH DRILLING MINING
Information
Patent Application
DRIVEN ROTARY STEERING SYSTEM HAVING A VARIABLE-ORIFICE VALVE
Publication number
20210164292
Publication date
Jun 3, 2021
Halliburton Energy Services, Inc,
Neelesh V. Deolalikar
E21 - EARTH DRILLING MINING
Information
Patent Application
Rotary Steerable Drilling Tool and Method
Publication number
20210095190
Publication date
Apr 1, 2021
Halliburton Energy Services, Inc.
Jim Darin Tilley
E21 - EARTH DRILLING MINING
Information
Patent Application
Rotary Steerable Tool with Independent Actuators
Publication number
20210062585
Publication date
Mar 4, 2021
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING
Information
Patent Application
AUTONOMOUSLY DRIVEN ROTARY STEERING SYSTEM
Publication number
20200392791
Publication date
Dec 17, 2020
Halliburton Energy Services, Inc.
Ravi P. NANAYAKKARA
E21 - EARTH DRILLING MINING
Information
Patent Application
DOWNHOLE POWER GENERATION AND DIRECTIONAL DRILLING TOOL
Publication number
20190353009
Publication date
Nov 21, 2019
Halliburton Energy Services, Inc.
Ravi P. NANAYAKKARA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Rotary Steerable Drilling Tool and Method
Publication number
20190352558
Publication date
Nov 21, 2019
Halliburton Energy Services, Inc.
Jim Darin Tilley
E21 - EARTH DRILLING MINING
Information
Patent Application
HYBRID DRIVE FOR A FULLY ROTATING DOWNHOLE TOOL
Publication number
20180252042
Publication date
Sep 6, 2018
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING
Information
Patent Application
Rotary Steerable Drilling Tool and Method
Publication number
20180252088
Publication date
Sep 6, 2018
Halliburton Energy Services, Inc.
Jim Darin Tilley
E21 - EARTH DRILLING MINING
Information
Patent Application
TOOLFACE CONTROL WITH PULSE WIDTH MODULATION
Publication number
20170260841
Publication date
Sep 14, 2017
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING
Information
Patent Application
MITIGATING STICK-SLIP EFFECTS IN ROTARY STEERABLE TOOLS
Publication number
20160356089
Publication date
Dec 8, 2016
Halliburton Energy Services, Inc.
Ravi P. Nanayakkara
E21 - EARTH DRILLING MINING