Inventor · disambiguated record
Terizhandur S. Ramakrishnan
Also filed as: RAMAKRISHNAN TERIZHANDUR S
82 granted patents·15 pending applications·1,792 citations·filing 1997–2025
99Inventor score
Files withSCHLUMBERGER TECHNOLOGY CORP75RAMAKRISHNAN TERIZHANDUR S6AYAN COSAN3CHUGUNOV NIKITA V3VERMA SANDEEP2
Top patents by PatentIndex Score
97 records- 0198US7715984B2Method for continuous interpretation of monitoring dataSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted May 11, 2010·72 cites·18 claims
- 0297US5992519AReal time monitoring and control of downhole reservoirsSCHLUMBERGER TECHNOLOGY CORP·Filed 1997·Granted Nov 30, 1999·453 cites·22 claims
- 0396US9051822B2Formation treatment evaluationAYAN COSAN·Filed 2009·Granted Jun 9, 2015·88 cites·18 claims
- 0495US7221158B1Permeability determinations from nuclear magnetic resonance measurementsSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted May 22, 2007·34 cites·45 claims
- 0594US6829570B1Oilfield analysis systems and methodsSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Dec 7, 2004·104 cites·18 claims
- 0693US7763099B2Downhole separation of carbon dioxide from natural gas produced from natural gas reservoirsSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Jul 27, 2010·56 cites·20 claims
- 0793US7081615B2Methods and apparatus for the downhole characterization of formation fluidsSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Jul 25, 2006·57 cites·8 claims
- 0893US6088656AMethod for interpreting carbonate reservoirsSCHLUMBERGER TECHNOLOGY CORP·Filed 1998·Granted Jul 11, 2000·137 cites·12 claims
- 0989US9312557B2Fuel cell apparatus and method for downhole power systemsZHANG WENLIN·Filed 2005·Granted Apr 12, 2016·16 cites·10 claims
- 1089US8862407B2Method and apparatus utilizing nuclear magnetic resonance measurements for estimating residual carbon dioxide saturation in aquifersSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Oct 14, 2014·7 cites·19 claims
- 1188US2025314146A1Methods, apparatus and systems for creating wellbore plugs for abandoned wellsSCHLUMBERGER TECHNOLOGY CORP·Filed 2025·Application pending·0 cites
- 1285US8548785B2Method for uncertainty quantification in the performance and risk assessment of a carbon dioxide storage siteCHUGUNOV NIKITA V·Filed 2010·Granted Oct 1, 2013·12 cites·20 claims
- 1385US8191416B2Instrumented formation tester for injecting and monitoring of fluidsKUCHUK FIKRI·Filed 2008·Granted Jun 5, 2012·42 cites·22 claims
- 1484US11732547B2Methods, apparatus and systems for creating wellbore plugs for abandoned wellsSCHLUMBERGER TECHNOLOGY CORP·Filed 2018·Granted Aug 22, 2023·2 cites·15 claims
- 1583US10365202B2Method for measurement of ultra-low permeability and porosity by accounting for adsorptionSCHLUMBERGER TECHNOLOGY CORP·Filed 2016·Granted Jul 30, 2019·2 cites·16 claims
- 1683US10329903B2Methods of characterizing earth formations using physiochemical modelSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Jun 25, 2019·7 cites·20 claims
- 1782US11603740B2Method for real-time interpretation of pressure transient testSCHLUMBERGER TECHNOLOGY CORP·Filed 2018·Granted Mar 14, 2023·2 cites·13 claims
- 1882US10837893B2Methods for measurement of ultra-low permeability and porositySCHLUMBERGER TECHNOLOGY CORP·Filed 2019·Granted Nov 17, 2020·1 cites·18 claims
- 1982US9534481B2Formation treatment evaluationSCHLUMBERGER TECHNOLOGY CORP·Filed 2015·Granted Jan 3, 2017·3 cites·18 claims
- 2082US8720552B2Tool and method for determining formation parameterAYAN COSAN·Filed 2011·Granted May 13, 2014·7 cites·26 claims
- 2181US12331614B2Methods, apparatus and systems for creating wellbore plugs for abandoned wellsSCHLUMBERGER TECHNOLOGY CORP·Filed 2023·Granted Jun 17, 2025·0 cites·8 claims
- 2281US7096092B1Methods and apparatus for remote real time oil field managementSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Aug 22, 2006·61 cites·31 claims
- 2381US6629564B1Downhole flow meterSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Oct 7, 2003·57 cites·32 claims
- 2480US12312905B2Methods, apparatus and systems for creating wellbore plugs for abandoned wellsSCHLUMBERGER TECHNOLOGY CORP·Filed 2023·Granted May 27, 2025·0 cites·10 claims
- 2580US9500583B2Method and apparatus for measuring carbon dioxide dissolved in solution and wellbore monitoring systems based thereonJIANG LI·Filed 2011·Granted Nov 22, 2016·4 cites·50 claims
- 2680US6040696AMethod for estimating pore structure in carbonates from NMR measurementsSCHLUMBERGER TECHNOLOGY CORP·Filed 1997·Granted Mar 21, 2000·47 cites·19 claims
- 2778US8452539B2Method and apparatus utilizing nuclear magnetic resonance measurements for estimating residual carbon dioxide saturation in aquifiersCHUGUNOV NIKITA V·Filed 2010·Granted May 28, 2013·4 cites·20 claims
- 2878US6061634AMethod and apparatus for characterizing earth formation properties through joint pressure-resistivity inversionSCHLUMBERGER TECHNOLOGY CORP·Filed 1997·Granted May 9, 2000·87 cites·25 claims
- 2977US11643902B2Methods, apparatus and systems for creating wellbore plugs for abandoned wellsSCHLUMBERGER TECHNOLOGY CORP·Filed 2018·Granted May 9, 2023·0 cites·20 claims
- 3077US7607303B2Zero emission natural gas power and liquefaction plantSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Oct 27, 2009·3 cites·17 claims
- 3177US7152466B2Methods and apparatus for rapidly measuring pressure in earth formationsSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Dec 26, 2006·46 cites·30 claims
- 3276US10927668B2Methods and apparatus for the downhole analysis of the composition of formation gasesSCHLUMBERGER TECHNOLOGY CORP·Filed 2018·Granted Feb 23, 2021·2 cites·13 claims
- 3375US12312906B2Methods, apparatus and systems for creating bismuth alloy plugs for abandoned wellsSCHLUMBERGER TECHNOLOGY CORP·Filed 2023·Granted May 27, 2025·0 cites·9 claims
- 3475US7000697B2Downhole measurement apparatus and techniqueSCHLUMBERGER TECHNOLOGY CORP·Filed 2001·Granted Feb 21, 2006·47 cites·39 claims
- 3575US6415864B1System and method for separately producing water and oil from a reservoirSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Jul 9, 2002·51 cites·34 claims
- 3674US7753118B2Method and tool for evaluating fluid dynamic properties of a cement annulus surrounding a casingSCHLUMBERGER TECHNOLOGY CORP·Filed 2008·Granted Jul 13, 2010·16 cites·20 claims
- 3773US7726402B2Methods for downhole sequestration of carbon dioxideSCHLUMBERGER TECHNOLOGY CORP·Filed 2008·Granted Jun 1, 2010·19 cites·17 claims
- 3872US12291964B2Method for real-time interpretation of pressure transient testSCHLUMBERGER TECHNOLOGY CORP·Filed 2023·Granted May 6, 2025·0 cites·15 claims
- 3972US7165621B2Method for exploitation of gas hydratesSCHLUMBERGER TECHNOLOGY CORP·Filed 2004·Granted Jan 23, 2007·37 cites·21 claims
- 4072US6115671AMethod for estimating rock petrophysical parameters using temperature modified NMR dataSCHLUMBERGER TECHNOLOGY CORP·Filed 1999·Granted Sep 5, 2000·51 cites·22 claims
- 4170US9371710B2Fluid minotiring and flow characterizationRAMAKRISHNAN TERIZHANDUR S·Filed 2012·Granted Jun 21, 2016·3 cites·14 claims
- 4270US8276380B2Zero emission natural gas power and liquefaction plantRAMAKRISHNAN TERIZHANDUR S·Filed 2009·Granted Oct 2, 2012·1 cites·8 claims
- 4369US11773700B2Autonomous optimization of single-well and multi-well gas liftSCHLUMBERGER TECHNOLOGY CORP·Filed 2019·Granted Oct 3, 2023·1 cites·28 claims
- 4469US9542508B2Model based inversion of seismic response for determining formation propertiesALTUNDAS YUSUF·Filed 2011·Granted Jan 10, 2017·6 cites·22 claims
- 4569US7753117B2Tool and method for evaluating fluid dynamic properties of a cement annulus surrounding a casingSCHLUMBERGER TECHNOLOGY CORP·Filed 2008·Granted Jul 13, 2010·12 cites·17 claims
- 4668US7555390B2Petrophysical interpretation of multipass array resistivity data obtained while drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Jun 30, 2009·8 cites·21 claims
- 4768US2019071952A1Fuel cell apparatus and method for downhole power systemsSCHLUMBERGER TECHNOLOGY CORP·Filed 2018·Application pending·0 cites
- 4867US6675892B2Well testing using multiple pressure measurementsSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Jan 13, 2004·36 cites·40 claims
- 4966US8297354B2Tool and method for determining formation parameterAYAN COSAN·Filed 2008·Granted Oct 30, 2012·8 cites·23 claims
- 5064US12436103B2Attenuated total reflection based measurement of refractive index and carbon dioxide concentrationSCHLUMBERGER TECHNOLOGY CORP·Filed 2023·Granted Oct 7, 2025·0 cites·20 claims
Showing the top 50 of 97 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →