|
US3984918A
(en)
|
1974-10-02 |
1976-10-12 |
Sun Oil Company (Delaware) |
Inclinometer
|
|
US4035718A
(en)
|
1976-08-23 |
1977-07-12 |
Schlumberger Technology Corporation |
Enclosed nuclear-magnetism logging tool with compensated coil-isolating system
|
|
US4356098A
(en)
|
1979-11-08 |
1982-10-26 |
Ferrofluidics Corporation |
Stable ferrofluid compositions and method of making same
|
|
US4350955A
(en)
|
1980-10-10 |
1982-09-21 |
The United States Of America As Represented By The United States Department Of Energy |
Magnetic resonance apparatus
|
|
GB2107004B
(en)
|
1981-08-08 |
1985-07-24 |
Nippon Telegraph & Telephone |
A ferro fluidic seal
|
|
US4444398A
(en)
|
1983-02-22 |
1984-04-24 |
Ferrofluidics Corporation |
Self-activating ferrofluid seal apparatus and method
|
|
US4630243A
(en)
|
1983-03-21 |
1986-12-16 |
Macleod Laboratories, Inc. |
Apparatus and method for logging wells while drilling
|
|
US4630943A
(en)
|
1983-10-27 |
1986-12-23 |
Ferrofluidics Corporation |
Ferrofluid bearing and seal apparatus
|
|
US4526379A
(en)
|
1984-01-09 |
1985-07-02 |
Ferrofluidics Corporation |
Stabilized ferrofluid-ferrofluid seal apparatus and method
|
|
US4502700A
(en)
|
1984-05-03 |
1985-03-05 |
Ferrofluidics Corporation |
Ferrofluid linear seal apparatus
|
|
US4604229A
(en)
|
1985-03-20 |
1986-08-05 |
Ferrofluidics Corporation |
Electrically conductive ferrofluid compositions and method of preparing and using same
|
|
US4604222A
(en)
|
1985-05-21 |
1986-08-05 |
Ferrofluidics Corporation |
Stable ferrofluid composition and method of making and using same
|
|
US4691774A
(en)
|
1985-11-15 |
1987-09-08 |
Dowell Schlumberger Incorporated |
Novel ferrofluids for use in cementing wells
|
|
GB8704076D0
(en)
|
1987-02-21 |
1987-03-25 |
Sperry Sun Inc |
Accelerometers
|
|
GB2222680B
(en)
|
1988-03-15 |
1991-09-11 |
Baroid Technology Inc |
Accelerometers
|
|
GB2222679B
(en)
|
1988-03-15 |
1991-10-16 |
Baroid Technology Inc |
Accelerometers
|
|
US4865334A
(en)
|
1988-11-04 |
1989-09-12 |
Ferrofluidics Corporation |
Long-life multi-stage ferrofluid seals incorporating a ferrofluid reservoir
|
|
DE3922356A1
(en)
|
1989-07-07 |
1991-01-17 |
Freudenberg Carl Fa |
FERROFLUID SEAL FOR A SHAFT
|
|
US5007513A
(en)
|
1990-04-03 |
1991-04-16 |
Lord Corporation |
Electroactive fluid torque transmission apparatus with ferrofluid seal
|
|
US5474302A
(en)
|
1992-08-27 |
1995-12-12 |
Ferrofluidics Corporation |
On-site fillable ferrofluidic seal
|
|
US5346011A
(en)
*
|
1993-04-01 |
1994-09-13 |
Halliburton Company |
Methods of displacing liquids through pipes
|
|
US5429000A
(en)
|
1993-12-21 |
1995-07-04 |
Ferrofluidics Corporation |
Ferrofluid pressure sensor
|
|
US5475309A
(en)
|
1994-01-21 |
1995-12-12 |
Atlantic Richfield Company |
Sensor in bit for measuring formation properties while drilling including a drilling fluid ejection nozzle for ejecting a uniform layer of fluid over the sensor
|
|
US5452520A
(en)
|
1994-03-14 |
1995-09-26 |
Ferrofluidics Corporation |
Ferrofluid inclinometer
|
|
US5850624A
(en)
|
1995-10-18 |
1998-12-15 |
The Charles Machine Works, Inc. |
Electronic compass
|
|
US5780741A
(en)
|
1997-02-11 |
1998-07-14 |
Ferrofluidics Corporation |
Sensor employing a sliding magnet suspended on ferrofluid
|
|
JP3059381U
(en)
|
1998-11-26 |
1999-07-09 |
株式会社フェローテック |
Magnetic fluid sealing device
|
|
US6250848B1
(en)
|
1999-02-01 |
2001-06-26 |
The Regents Of The University Of California |
Process for guidance, containment, treatment, and imaging in a subsurface environment utilizing ferro-fluids
|
|
US6290894B1
(en)
|
1999-03-24 |
2001-09-18 |
Ferrofluidics Corporation |
Ferrofluid sculpting apparatus
|
|
US6257356B1
(en)
|
1999-10-06 |
2001-07-10 |
Aps Technology, Inc. |
Magnetorheological fluid apparatus, especially adapted for use in a steerable drill string, and a method of using same
|
|
US6216787B1
(en)
|
1999-10-21 |
2001-04-17 |
Rattler Tools, Inc. |
Apparatus for retrieving metal objects from a wellbore
|
|
CA2400563C
(en)
|
2000-02-18 |
2009-06-02 |
The Board Of Regents Of The University And Community College System Of N Evada |
Magnetorheological polymer gels
|
|
US6681849B2
(en)
|
2001-08-22 |
2004-01-27 |
Baker Hughes Incorporated |
Downhole packer system utilizing electroactive polymers
|
|
NL1019349C2
(en)
*
|
2001-11-12 |
2003-05-13 |
Univ Delft Tech |
Method for allowing a liquid mass to cure.
|
|
GB2398329B
(en)
|
2001-11-19 |
2005-08-03 |
Shell Int Research |
Method of drilling a borehole with magnetic filter-cake removal
|
|
US7428922B2
(en)
*
|
2002-03-01 |
2008-09-30 |
Halliburton Energy Services |
Valve and position control using magnetorheological fluids
|
|
NL1020354C2
(en)
|
2002-04-10 |
2003-10-13 |
Univ Delft Tech |
Process for the extraction of petroleum.
|
|
NL1020355C2
(en)
|
2002-04-10 |
2003-10-13 |
Univ Delft Tech |
Method for drilling a well bore.
|
|
US6817415B2
(en)
|
2002-11-05 |
2004-11-16 |
Schlumberger Technology Corporation |
Method of sealing an annulus surrounding a slotted liner
|
|
US7063802B2
(en)
|
2003-03-28 |
2006-06-20 |
Ferrotec Corporation |
Composition and method of making an element-modified ferrofluid
|
|
WO2005038189A1
(en)
|
2003-10-21 |
2005-04-28 |
Shell Internationale Research Maatschappij B.V. |
Nozzle unit and method for excavating a hole in an object
|
|
US7063146B2
(en)
|
2003-10-24 |
2006-06-20 |
Halliburton Energy Services, Inc. |
System and method for processing signals in a well
|
|
WO2005047640A2
(en)
|
2003-11-07 |
2005-05-26 |
Aps Technology, Inc. |
Sytem and method for damping vibration in a drill string
|
|
US7137449B2
(en)
*
|
2004-06-10 |
2006-11-21 |
M-I L.L.C. |
Magnet arrangement and method for use on a downhole tool
|
|
US7204581B2
(en)
|
2004-10-06 |
2007-04-17 |
Palo Alto Research Center, Incorporated |
Magnetic actuator using ferrofluid slug
|
|
US7763175B2
(en)
|
2005-05-17 |
2010-07-27 |
The Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College |
Electromagnetic probe device
|
|
US20100267594A1
(en)
|
2005-06-24 |
2010-10-21 |
Rana Rohit K |
Nano-encapsulated triggered-release viscosity breakers
|
|
JP4885490B2
(en)
|
2005-06-30 |
2012-02-29 |
株式会社リガク |
Magnetic fluid seal device
|
|
TW200741125A
(en)
|
2006-03-31 |
2007-11-01 |
Eagle Ind Co Ltd |
Device for sealing magnetic fluid
|
|
US7735567B2
(en)
|
2006-04-13 |
2010-06-15 |
Baker Hughes Incorporated |
Packer sealing element with shape memory material and associated method
|
|
DE102006037992A1
(en)
|
2006-08-14 |
2008-02-21 |
Magna Powertrain Ag & Co Kg |
Component e.g. door brake and cylinder/piston arrangement, for holding system of vehicle door or lid, has coil, housing, field testified component, cylinder, piston, cover that work together such that currentless conditions are generated
|
|
US7900705B2
(en)
|
2007-03-13 |
2011-03-08 |
Schlumberger Technology Corporation |
Flow control assembly having a fixed flow control device and an adjustable flow control device
|
|
US8230918B2
(en)
|
2007-05-24 |
2012-07-31 |
Saudi Arabian Oil Company |
Method of characterizing hydrocarbon reservoir fractures in situ with artificially enhanced magnetic anisotropy
|
|
US8443875B2
(en)
|
2007-07-25 |
2013-05-21 |
Smith International, Inc. |
Down hole tool with adjustable fluid viscosity
|
|
US7631695B2
(en)
*
|
2007-10-22 |
2009-12-15 |
Schlumberger Technology Corporation |
Wellbore zonal isolation system and method
|
|
US8269501B2
(en)
|
2008-01-08 |
2012-09-18 |
William Marsh Rice University |
Methods for magnetic imaging of geological structures
|
|
EP2103775A1
(en)
|
2008-03-19 |
2009-09-23 |
Services Pétroliers Schlumberger |
Method and apparatus for performing wireline logging operations in an under-balanced well
|
|
US7779933B2
(en)
|
2008-04-30 |
2010-08-24 |
Schlumberger Technology Corporation |
Apparatus and method for steering a drill bit
|
|
AU2009249560A1
(en)
|
2008-05-19 |
2009-11-26 |
William Marsh Rice University |
Methods for magnetic imaging of geological structures
|
|
AU2009257881B2
(en)
|
2008-05-19 |
2015-03-05 |
Halliburton Energy Services, Inc. |
Formation treatment using electromagnetic radiation
|
|
US8016026B2
(en)
|
2008-11-25 |
2011-09-13 |
Baker Hughes Incorporated |
Actuator for downhole tools
|
|
US7975780B2
(en)
|
2009-01-27 |
2011-07-12 |
Schlumberger Technology Corporation |
Adjustable downhole motors and methods for use
|
|
US8640790B2
(en)
|
2009-03-09 |
2014-02-04 |
Schlumberger Technology Corporation |
Apparatus, system and method for motion compensation using wired drill pipe
|
|
US8136594B2
(en)
*
|
2009-08-24 |
2012-03-20 |
Halliburton Energy Services Inc. |
Methods and apparatuses for releasing a chemical into a well bore upon command
|
|
WO2011033001A1
(en)
|
2009-09-15 |
2011-03-24 |
Managed Pressure Operations Pte. Ltd |
Method of drilling a subterranean borehole
|
|
US8328199B2
(en)
|
2009-09-24 |
2012-12-11 |
Eagle Industry Co., Ltd. |
Seal device
|
|
WO2011063023A2
(en)
|
2009-11-17 |
2011-05-26 |
Board Of Regents, The University Of Texas System |
Determination of oil saturation in reservoir rock using paramagnetic nanoparticles and magnetic field
|
|
US8286705B2
(en)
|
2009-11-30 |
2012-10-16 |
Schlumberger Technology Corporation |
Apparatus and method for treating a subterranean formation using diversion
|
|
CA2691891A1
(en)
|
2010-02-04 |
2011-08-04 |
Trican Well Services Ltd. |
Applications of smart fluids in well service operations
|
|
US20110192573A1
(en)
|
2010-02-08 |
2011-08-11 |
Harmel Defretin |
System and method for moving a first fluid using a second fluid
|
|
US9551203B2
(en)
|
2010-06-01 |
2017-01-24 |
Advanced Magnet Lab, Inc. |
Closing of underwater oil spills with the help of magnetic powders
|
|
WO2011153474A1
(en)
|
2010-06-03 |
2011-12-08 |
Joseph Kahoe |
Electromagnetic oil pipe plugger
|
|
WO2011153524A2
(en)
|
2010-06-05 |
2011-12-08 |
Jay Vandelden |
Magnetorheological blowout preventer
|
|
WO2011163419A2
(en)
*
|
2010-06-23 |
2011-12-29 |
The Greenward Company L.L.C. |
Flow regulating applied magnetic envelope
|
|
CA2800148C
(en)
|
2010-06-29 |
2015-06-23 |
Halliburton Energy Services, Inc. |
Method and apparatus for sensing elongated subterranean anomalies
|
|
AU2010357213B2
(en)
|
2010-07-09 |
2014-08-07 |
Halliburton Energy Services, Inc. |
Imaging and sensing of subterranean reservoirs
|
|
US8056246B1
(en)
|
2010-07-19 |
2011-11-15 |
National Semiconductor Corporation |
Ferrofluidic orientation sensor and method of forming the sensor
|
|
TW201204966A
(en)
|
2010-07-23 |
2012-02-01 |
qi-yun Gong |
Magnetic fluid sealing device
|
|
US20140239957A1
(en)
|
2011-07-19 |
2014-08-28 |
Schlumberger Technology Corporation |
Using Low Frequency For Detecting Formation Structures Filled With Magnetic Fluid
|
|
US8808567B2
(en)
|
2011-11-03 |
2014-08-19 |
Baker Hughes Incorporated |
Magnetic nanoparticles and magnetorheological fluid comprising same
|
|
US9250070B2
(en)
|
2011-11-16 |
2016-02-02 |
Keith Robert Wootten |
Rugged three-axis inclinometer
|
|
US8813572B2
(en)
|
2011-12-06 |
2014-08-26 |
Rosemount Inc. |
Ferrofluid modified fill fluid for pressure transmitters
|
|
PL221563B1
(en)
|
2011-12-08 |
2016-04-29 |
Akademia Górniczo Hutnicza Im Stanisława Staszica W Krakowie |
Multistage sealing using a magnetic fluid
|
|
US20140262268A1
(en)
|
2013-03-15 |
2014-09-18 |
Halliburton Energy Services, Inc. ("HESI") |
Drilling and Completion Applications of Magnetorheological Fluid Barrier Pills
|
|
US10502017B2
(en)
*
|
2013-06-28 |
2019-12-10 |
Schlumberger Technology Corporation |
Smart cellular structures for composite packer and mill-free bridgeplug seals having enhanced pressure rating
|
|
US9382765B2
(en)
|
2013-07-15 |
2016-07-05 |
Harris Corporation |
Apparatus for recovering hydrocarbon resources including ferrofluid source and related methods
|
|
US9428992B2
(en)
|
2013-08-02 |
2016-08-30 |
Halliburton Energy Services, Inc. |
Method and apparatus for restricting fluid flow in a downhole tool
|
|
GB2536135B
(en)
|
2013-12-19 |
2020-08-26 |
Halliburton Energy Services Inc |
Self-assembling packer
|
|
GB2535043B
(en)
|
2013-12-19 |
2017-08-30 |
Halliburton Energy Services Inc |
Intervention tool for delivering self-assembling repair fluid
|
|
US20160290089A1
(en)
|
2013-12-24 |
2016-10-06 |
Halliburton Energy Services, Inc. |
Smart fluid completions, isolations, and safety systems
|
|
WO2015102563A1
(en)
|
2013-12-30 |
2015-07-09 |
Halliburtion Energy Services, Inc. |
Ferrofluid tool for influencing electrically conductive paths in a wellbore
|
|
WO2015102566A1
(en)
|
2013-12-30 |
2015-07-09 |
Halliburton Energy Services, Inc. |
Ferrofluid tool for isolation of objects in a wellbore
|
|
MX2016006840A
(en)
|
2013-12-30 |
2016-12-16 |
Halliburton Energy Services Inc |
Ferrofluid tool for providing modifiable structures in boreholes.
|
|
EP3047099A1
(en)
|
2013-12-30 |
2016-07-27 |
Halliburton Energy Services, Inc. |
Ferrofluid tool for enhancing magnetic fields in a wellbore
|
|
US10385660B2
(en)
|
2014-06-23 |
2019-08-20 |
Halliburton Energy Services, Inc. |
Gravel pack sealing assembly
|
|
US10836949B2
(en)
|
2014-07-11 |
2020-11-17 |
Board Of Regents, The University Of Texas System |
Magnetorheological fluids and methods of using same
|