Herbert M. J. Illfelder

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of optimizing a well path during drilling
- Patent number 8,010,290
- Issue date Aug 30, 2011
- Smith International, Inc.
- Herbert M. J. Illfelder
- E21 - EARTH DRILLING MINING
Information Patent Grant
Distance determination from a magnetically patterned target well
- Patent number 7,617,049
- Issue date Nov 10, 2009
- Smith International, Inc.
- Graham McElhinney
- E21 - EARTH DRILLING MINING
Information Patent Grant
Determining a borehole azimuth from tool face measurements
- Patent number 7,080,460
- Issue date Jul 25, 2006
- PathFinder Energy Sevices, Inc.
- Herbert M. J. Illfelder
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method for performing inversion on LWD resistivity logs...
- Patent number 5,867,806
- Issue date Feb 2, 1999
- Halliburton Energy Services, Inc.
- Robert W. Strickland
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
RANGING TO AN ELECTROMAGNETIC TARGET WITHOUT TIMING
- Publication number 20170362927
- Publication date Dec 21, 2017
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Andrew G. Brooks
- G01 - MEASURING TESTING
Information Patent Application
Relative and Absolute Error Models for Subterranean Wells
- Publication number 20100241410
- Publication date Sep 23, 2010
- Smith International, Inc.
- Graham A. McElhinney
- E21 - EARTH DRILLING MINING
Information Patent Application
Method of optimizing a well path during drilling
- Publication number 20080275648
- Publication date Nov 6, 2008
- PathFinder Energy Services, Inc .
- Herbert M. J. Illfelder
- E21 - EARTH DRILLING MINING
Information Patent Application
Distance determination from a magnetically patterned target well
- Publication number 20080177475
- Publication date Jul 24, 2008
- PathFinder Energy Services, Inc .
- Graham A. McElhinney
- E21 - EARTH DRILLING MINING
Information Patent Application
Determining a borehole azimuth from tool face measurements
- Publication number 20050268476
- Publication date Dec 8, 2005
- PathFinder Energy Services, Inc .
- Herbert M. J. Illfelder
- E21 - EARTH DRILLING MINING