Inventor · disambiguated record
Eric Donzier
Also filed as: DONZIER ERIC · DONZIER ERIC P · DONZIER ERIC PAUL
36 granted patents·4 pending applications·734 citations·filing 1994–2025
97Inventor score
Files withOPENFIELD13SCHLUMBERGER TECHNOLOGY CORP9Openfield SA4SAUDI ARABIAN OIL CO3DUCHENE AURELIE2
Top patents by PatentIndex Score
40 records- 0197US8931347B2Fluid pressure sensor and measurement probeOPENFIELD·Filed 2012·Granted Jan 13, 2015·40 cites·34 claims
- 0297US7673679B2Protective barriers for small devicesSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Mar 9, 2010·155 cites·16 claims
- 0395US9863244B2Downhole fluid properties analysis probe, tool and methodOPENFIELD·Filed 2016·Granted Jan 9, 2018·14 cites·15 claims
- 0494US10472951B2Downhole acoustic transducer, downhole probe and tool comprising such a transducerOPENFIELD·Filed 2016·Granted Nov 12, 2019·13 cites·14 claims
- 0594US7958772B2Density and viscosity sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Jun 14, 2011·25 cites·4 claims
- 0694US7874199B2Density and viscosity sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Jan 25, 2011·38 cites·17 claims
- 0793US10527751B2Downhole fluid properties optical analysis probe having a removable optical tipOPENFIELD·Filed 2017·Granted Jan 7, 2020·13 cites·10 claims
- 0893US10294771B2Production logging tool and downhole fluid analysis probes deploying method, in particular for deviated and horizontal hydrocarbon wellOPENFIELD·Filed 2017·Granted May 21, 2019·10 cites·16 claims
- 0993US9952192B2Probe, sonde and method for producing signals indicative of local phase composition of a fluidOpenfield SA·Filed 2014·Granted Apr 24, 2018·18 cites·35 claims
- 1093US9651710B2Downhole fluid properties analysis device and tools comprising such a deviceOPENFIELD·Filed 2016·Granted May 16, 2017·8 cites·27 claims
- 1190US5736650AVenturi flow meter for measurement in a fluid flow passageSCHLUMBERGER TECHNOLOGY CORP·Filed 1996·Granted Apr 7, 1998·92 cites·20 claims
- 1288US8061219B2Flow restriction insert for differential pressure measurementREZGUI FADHEL·Filed 2010·Granted Nov 22, 2011·22 cites·17 claims
- 1383US11352839B2Production logging tool and downhole fluid analysis probes deploying methodOPENFIELD·Filed 2020·Granted Jun 7, 2022·2 cites·19 claims
- 1483US5956132AMethod and apparatus for optically discriminating between the phases of a three-phase fluidINTELLECTUAL PROPERTY LAW DEPT·Filed 1997·Granted Sep 21, 1999·103 cites·20 claims
- 1580US11913292B2Production logging tool and downhole fluid analysis sensors vertical deploying methodOPENFIELD·Filed 2022·Granted Feb 27, 2024·1 cites·12 claims
- 1680US5509312ADiaphragm pressure sensor including anti-stock protection means and gradiomanometer incorporating such a sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 1994·Granted Apr 23, 1996·46 cites·20 claims
- 1777US7152466B2Methods and apparatus for rapidly measuring pressure in earth formationsSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Dec 26, 2006·46 cites·30 claims
- 1876US6966228B2Resonator-type microelectronic pressure sensor that withstands high pressuresSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Nov 22, 2005·21 cites·18 claims
- 1974US9777555B2Predictive flow assurance assessment method and systemOPENFIELD·Filed 2013·Granted Oct 3, 2017·4 cites·13 claims
- 2074US7434457B2Fluid property sensorsSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Oct 14, 2008·53 cites·30 claims
- 2166US10774639B2Downhole local solid particles counting probe, production logging tool comprising the same and sand entry investigation method for hydrocarbon wellsOpenfield SA·Filed 2018·Granted Sep 15, 2020·1 cites·11 claims
- 2266US2025369949A1Water/oil emulsion sensor and downhole tool including such sensorsOPENFIELD·Filed 2025·Application pending·0 cites
- 2363US10323512B2System and method for downhole inorganic scale monitoring and intervention in a production wellDUCHENE AURELIE·Filed 2015·Granted Jun 18, 2019·2 cites·18 claims
- 2463US9719904B2Density and viscosity sensor and measuring methodDONZIER ERIC·Filed 2013·Granted Aug 1, 2017·1 cites·23 claims
- 2560US10323513B2System and method for downhole organic scale monitoring and intervention in a production wellDE OLIVEIRA GEIZA ESPERANDIO·Filed 2015·Granted Jun 18, 2019·2 cites·17 claims
- 2659US12000277B2Water detection for geosteering in directional drillingSAUDI ARABIAN OIL CO·Filed 2020·Granted Jun 4, 2024·0 cites·25 claims
- 2757US11781419B2Instrumented mandrel for coiled tubing drillingSAUDI ARABIAN OIL CO·Filed 2020·Granted Oct 10, 2023·0 cites·31 claims
- 2856US8943900B2Method and apparatus for differential pressure measurementREZGUI FADHEL·Filed 2010·Granted Feb 3, 2015·1 cites·32 claims
- 2954US12000223B2Geosteering in directional drillingSAUDI ARABIAN OIL CO·Filed 2020·Granted Jun 4, 2024·0 cites·21 claims
- 3053US12410707B2Device for acquiring and sending data between oil or gas well stringsVALLOUREC OIL & GAS FRANCE·Filed 2022·Granted Sep 9, 2025·0 cites·16 claims
- 3152US9371937B2Micro-valve and micro-fluidic device using suchNACHEF KINDA·Filed 2010·Granted Jun 21, 2016·2 cites·36 claims
- 3250US11131570B2Mini-spinner flowmeter and downhole tool comprising an array of mini-spinner flowmeters for operation in hydrocarbon wellOPENFIELD·Filed 2019·Granted Sep 28, 2021·0 cites·23 claims
- 3349US2023349285A1Measuring water level in highly deviated or horizontal hydrocarbon well sectionsOPENFIELD·Filed 2023·Application pending·0 cites
- 3448US2009302221A1Apparatus and method for optically determining the presence of carbon dioxideTAVERNIER EMMANUEL·Filed 2007·Application pending·0 cites
- 3546US11542813B2Device for acquiring and communicating data between strings of oil wells or gas wellsVALLOUREC OIL & GAS FRANCE·Filed 2019·Granted Jan 3, 2023·0 cites·18 claims
- 3645US2019234210A1System and method for downhole inorganic scale monitoring and intervention in a production wellDUCHENE AURELIE·Filed 2019·Application pending·0 cites
- 3744US11656187B2Microwave doppler flowmeter for hydrocarbon wellsOPENFIELD·Filed 2020·Granted May 23, 2023·0 cites·33 claims
- 3843US10761238B2Downhole optical chemical compound monitoring device, bottom hole assembly and measurements-while-drilling tool comprising the same, and method of optically monitoring chemical compound downhole during drillingOpenfield SA·Filed 2017·Granted Sep 1, 2020·0 cites·19 claims
- 3941US11629588B2Method and device for depth positioning downhole tool and associated measurement log of a hydrocarbon wellOpenfield SA·Filed 2017·Granted Apr 18, 2023·0 cites·13 claims
- 4040US6615664B1Method of measuring pressure by means of a pressure gauge having a resonant elementSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Sep 9, 2003·1 cites·15 claims
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