Inventor

Bikash K. Sinha

Inventor

West Redding, CT, US

Overview

1983–2021

Patent span

Physics

Primary field (CPC G)

Patents· 63 as inventor

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

G01Vprimary

G01VGeophysics50%

E21BEarth or rock drilling17%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

G01NInvestigating or analysing materials by determining their chemical or physical properties4%

H03HImpedance networks, e.g. resonant circuits4%

A61BDiagnosis1%

F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems1%

G01KMeasuring temperature1%

G06NComputing arrangements based on specific computational models1%

PatentTitleYear

11,131,182Methods for characterizing multi-string cased wells using wide frequency bandwidth signals2021 11,119,237Methods and systems for determining fast and slow shear directions in an anisotropic formation using a logging while drilling tool2021 11,015,443Estimation of horizontal stresses and nonlinear constants in anisotropic formations such as interbedded carbonate layers in organic-shale reservoirs2021 10,995,606Well integrity analysis using sonic measurements over depth interval2021 10,890,681Method for analyzing cement quality in multi-string cased wells using sonic logging2021 10,858,933Method for analyzing cement integrity in casing strings using machine learning2020 10,809,400Determining shear slowness based on a higher order formation flexural acoustic mode2020 10,809,405Measurement and processing to detect weak interfacial layers in hydrocarbon-bearing laminated formations with acoustic logging devices2020 10,705,056Method for analyzing cement integrity in cased wells using sonic logging2020 10,577,915Sonic logging for assessing well integrity2020 10,393,905Torsional wave logging2019 10,365,405Method for determining formation properties by inversion of multisensor wellbore logging data2019 10,355,664Resonator applications for langasite and its isomorphs2019 10,353,094Method for estimating anisotropic mechanical properties of a reservoir using sonic logging data2019 10,138,727Acoustic multi-modality inversion for cement integrity analysis2018 10,054,708Estimating formation stresses using radial profiles of three shear moduli2018 9,891,334'System and methodology for determining fracture attributes in a formation'2018 9,494,705'Cased-hole radial profiling of shear parameters from sonic measurements'2016 9,494,704'Estimating formation stresses using sonic data'2016 9,476,998'Hydraulic fracture characterization using borehole sonic data'2016 9,448,321'Torsional wave logging'2016 9,417,352'Multi-frequency inversion of modal dispersions for estimating formation anisotropy constants'2016 9,217,807'Systems and methods for identifying sanding in production wells using time-lapse sonic data'2015 9,176,250'Estimation of depletion or injection induced reservoir stresses using time-lapse sonic data in cased holes'2015 9,097,819'Thermoelastic logging'2015 9,086,506'Estimating formation stresses using radial profiles of three shear moduli'2015 9,086,508'Use of an effective tool model in sonic logging data processing'2015 8,831,923'Method and system for determination of horizontal stresses from shear radial variation profiles'2014 8,638,639'Method of using dipole compressional data to determine properties of a subterranean structure'2014 8,294,332'Pressure transducer'2012 8,223,586'Method and system to determine the geo-stresses regime factor Q from borehole sonic measurement modeling'2012 8,102,732'Anisotropy measurement while drilling'2012 8,009,509'Automated mud slowness estimation'2011 7,660,196'Methods for processing dispersive acoustic waveforms'2010 7,652,950'Radial profiling of formation mobility using horizontal and vertical shear slowness profiles'2010 7,649,804'In-situ determination of yield stress state of earth formations'2010 7,623,412'Anisotropy measurement while drilling'2009 7,529,152'Use of an effective tool model in sonic logging data processing'2009 7,516,015'System and method for detection of near-wellbore alteration using acoustic data'2009 7,463,550'Stoneley radial profiling of formation shear slowness'2008 7,257,489'Quadrupole acoustic shear wave logging while drilling'2007 7,251,566'Pump off measurements for quality control and wellbore stability prediction'2007 7,042,802'Determination of stress characteristics of earth formations'2006 6,904,365'Methods and systems for determining formation properties and in-situ stresses'2005 6,718,266'Determination of dipole shear anisotropy of earth formations'2004 6,714,873'System and method for estimating subsurface principal stresses from seismic reflection data'2004 6,714,480'Determination of anisotropic moduli of earth formations'2004 6,614,716'Sonic well logging for characterizing earth formations'2003 6,611,761'Sonic well logging for radial profiling'2003 6,351,991'Determining stress parameters of formations from multi-mode velocity data'2002 6,111,340'Dual-mode thickness-shear quartz pressure sensors for high pressure and high temperature applications'2000 5,838,633'Method for estimating formation in-situ stress magnitudes using a sonic borehole tool'1998 5,475,650'Measurement of nonlinear properties of formation using sonic borehole tool while changing pressure in borehole'1995 5,398,215'Identification of stress induced anisotropy in formations'1995 4,705,979'Stress and temperature compensated surface acoustic wave devices'1987 4,622,854'Rounded wall surface acoustic wave sensors'1986 4,622,855'Low thermal response time surface acoustic wave sensors'1986 4,586,382'Surface acoustic wave sensors'1986 4,535,632'Surface acoustic wave sensors'1985 4,535,631'Surface acoustic wave sensors'1985 4,534,223'Surface acoustic wave sensors'1985 4,512,198'Surface acoustic wave sensors'1985 4,419,600'Stress-compensated quartz resonators'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2021Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (63)· patent assignee history

1983–2015Based in West Redding, CT, US· patent location history

2010–2021Based in Cambridge, MA, US· patent location history

2012–2016Patents assigned to SINHA BIKASH K (10)· patent assignee history

2012–2015Patents assigned to PABON JAHIR (2)· patent assignee history

2012Patents assigned to BARRIOL YVES (1)· patent assignee history

2014Patents assigned to ALATRACH SAMER (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SCHLUMBERGER TECHNOLOGY CORP	63	1983–2021
SINHA BIKASH Kself	10	2012–2016
PABON JAHIR	2	2012–2015
ALATRACH SAMER	1	2014
BARRIOL YVES	1	2012

Locations

Location	Patents	Span
West Redding, CT, US	32	1983–2015
Cambridge, Massachusetts, US	31	2010–2021