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Yong Chang
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Sugar Land, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Systems and methods for formation fluid sampling
Patent number
11,384,637
Issue date
Jul 12, 2022
Schlumberger Technology Corporation
Kai Hsu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Single packer inlet configurations
Patent number
10,718,209
Issue date
Jul 21, 2020
Schlumberger Technology Corporation
Ryan Sangjun Lee
E21 - EARTH DRILLING MINING
Information
Patent Grant
Systems and methods for controlling flow rate in a focused downhole...
Patent number
10,294,784
Issue date
May 21, 2019
Schlumberger Technology Corporation
Adriaan Gisolf
E21 - EARTH DRILLING MINING
Information
Patent Grant
Single packers inlet configurations
Patent number
10,184,335
Issue date
Jan 22, 2019
Schlumberger Technology Corporation
Ryan Sangjun Lee
E21 - EARTH DRILLING MINING
Information
Patent Grant
Technique for establishing predictive reach through a deviated well
Patent number
9,659,113
Issue date
May 23, 2017
Schlumberger Technology Corporation
Nathaniel Wicks
E21 - EARTH DRILLING MINING
Information
Patent Grant
Measurement pretest drawdown methods and apparatus
Patent number
9,581,019
Issue date
Feb 28, 2017
Schlumberger Technology Corporation
Yong Chang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and apparatus for planning and dynamically updating samplin...
Patent number
9,097,103
Issue date
Aug 4, 2015
Schlumberger Technology Corporation
Julian J. Pop
E21 - EARTH DRILLING MINING
Information
Patent Grant
Modeling vibration effects introduced by mud motor
Patent number
8,180,614
Issue date
May 15, 2012
Schlumberger Technology Corporation
Jahir A. Pabon
E21 - EARTH DRILLING MINING
Information
Patent Grant
Modeling the transient behavior of BHA/drill string while drilling
Patent number
8,014,987
Issue date
Sep 6, 2011
Schlumberger Technology Corp.
Jahir Pabon
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
SINGLE PACKER INLET CONFIGURATIONS
Publication number
20190145254
Publication date
May 16, 2019
SCHLUMBERGER TECHNOLOGY CORPORATION
Ryan Sangjun Lee
E21 - EARTH DRILLING MINING
Information
Patent Application
Systems and Methods for Controlling Flow Rate in a Focused Downhole...
Publication number
20170152743
Publication date
Jun 1, 2017
SCHLUMBERGER TECHNOLOGY CORPORATION
Adriaan Gisolf
G01 - MEASURING TESTING
Information
Patent Application
Systems and Methods For Formation Fluid Sampling
Publication number
20160130940
Publication date
May 12, 2016
SCHLUMBERGER TECHNOLOGY CORPORATION
Kai Hsu
E21 - EARTH DRILLING MINING
Information
Patent Application
Methods And Apparatus For Planning And Dynamically Updating Samplin...
Publication number
20150330218
Publication date
Nov 19, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Julian J. Pop
E21 - EARTH DRILLING MINING
Information
Patent Application
Single Packers Inlet Configurations
Publication number
20150167457
Publication date
Jun 18, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Ryan Sangjun Lee
E21 - EARTH DRILLING MINING
Information
Patent Application
TECHNIQUE FOR ESTABLISHING PREDICTIVE REACH THROUGH A DEVIATED WELL
Publication number
20130246029
Publication date
Sep 19, 2013
SCHLUMBERGER TECHNOLOGY CORPORATION
Nathaniel Wicks
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
MEASUREMENT PRETEST DRAWDOWN METHODS AND APPARATUS
Publication number
20120253679
Publication date
Oct 4, 2012
Yong Chang
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODS AND APPARATUS FOR PLANNING AND DYNAMICALLY UPDATING SAMPLIN...
Publication number
20110266056
Publication date
Nov 3, 2011
Julian J. Pop
G05 - CONTROLLING REGULATING
Information
Patent Application
Modeling Vibration Effects Introduced By Mud Motor
Publication number
20100163306
Publication date
Jul 1, 2010
SCHLUMBERGER TECHNOLOGY CORPORATION
Jahir A. Pabon
E21 - EARTH DRILLING MINING
Information
Patent Application
MODELING THE TRANSIENT BEHAVIOR OF BHA/DRILL STRING WHILE DRILLING
Publication number
20080255817
Publication date
Oct 16, 2008
Jahir Pabon
E21 - EARTH DRILLING MINING