Invention Grant
- Patent Title: Method for formation fracture characterization in highly inclined wells using multiaxial induction well logging instruments
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Application No.: US14887975Application Date: 2015-10-20
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Publication No.: US10371851B2Publication Date: 2019-08-06
- Inventor: Peter T. Wu , Samer Alatrach
- Applicant: Schlumberger Technology Corporation
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- Agent Michael Dae
- Main IPC: G01V3/28
- IPC: G01V3/28 ; E21B49/00 ; E21B47/18 ; G01V3/34 ; E21B47/00 ; G01V3/18 ; G01V3/38

Abstract:
A method for characterizing fractures traversing a wellbore includes input to a computer multiaxial electromagnetic induction measurements corresponding to measurements made along two mutually orthogonal magnetic dipole moment axes perpendicular to an axis of the wellbore. The measurements correspond to at least one receiver spacing from a transmitter. The measurements represent induced voltage in a receiver having a same dipole moment direction as a dipole moment direction of a transmitter. A first derivative with respect to wellbore depth of the multiaxial electromagnetic induction measurements is calculated. At least one peak and an amplitude thereof of the first derivatives is calculated. The peak and the amplitude are used to determine a location and an aperture of at least one fracture traversing the wellbore.
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