Alois M Jerabek

7093674, Aug 22, 2006

Nov 4, 2002

10/288794

William C. Paluch - Jersey Village TX, US
Alois Jerabek - Houston TX, US
Paul D. Ringgenberg - Spring TX, US
Michael Hooper - Spring TX, US

Halliburton Energy Services, Inc. - Houston TX

E21B 44/00
E21B 49/08

175 48, 175 59, 166 66, 16625017, 7315219, 7315228, 7315246

An integrated drilling and evaluation system includes a drill string having an interior portion and a drill bit, carried on a lower end, that includes ports for communicating fluid between the interior portion of the drill string and an uncased well bore. A packer, carried above the drill bit, is operable for sealingly closing a well annulus. A tester valve inserted in the drill string is operable for sealingly closing the drill string. The packer and tester valve are cooperatively operable for isolating a subsurface zone of interest. The system includes monitoring means inserted in the drill string for monitoring a parameter of well fluid from the subsurface zone. Once the subsurface zone is isolated, well fluid is communicated into the interior portion of the drill string through the ports of the drill bit, received by the monitoring means, and tested without removing the drill string form the well.

7096976, Aug 29, 2006

Dec 12, 2002

10/317319

William C. Paluch - Jersey Village TX, US
Alois Jerabek - Houston TX, US
Paul D. Ringgenberg - Spring TX, US
Michael Hooper - Spring TX, US

Halliburton Energy Services, Inc. - Houston TX

E21B 44/00
E21B 49/08

175 48, 175 59, 166 66, 16625017, 7315219, 7315228, 7315246

An integrated drilling and evaluation system includes a drill string having an interior portion and a drill bit, carried on a lower end, that includes ports for communicating fluid between the interior portion of the drill string and an uncased well bore. A packer, carried above the drill bit, is operable for sealingly closing a well annulus, A tester valve inserted in the drill string is operable for sealingly closing the drill string. The packer and tester valve are cooperatively operable for isolating a subsurface zone of interest. The system includes monitoring means inserted in the drill string for monitoring a parameter of well fluid from the subsurface zone. Once the subsurface zone is isolated, well fluid is communicated into the interior portion of the drill string through the ports of the drill bit, received by the monitoring means, and tested without removing the drill string form the well.

20160041293, Feb 11, 2016

Aug 7, 2014

14/454500

- Sugar Land TX, US
Alois Jerabek - Houston TX, US
Miguel Pabon - Katy TX, US

G01V 3/26

A method for magnetic ranging includes rotating a drilling tool in a drilling well in sensory range of an AC ranging signal emanating from a target well. The drilling tool includes a magnetic field sensor rotatably coupled thereto. The magnetic field sensor obtains a plurality of magnetic field measurements while rotating. The magnetic field measurements are mathematically back-rotated to obtain back-rotated magnetic field measurements which are in turn processed to obtain a measurement of the AC magnetic ranging signal emanating from the target well. The AC magnetic ranging signal is then processed to compute at least one of a distance and a direction from the drilling well to the target well.