Using multicomponent induction data to identify drilling induced fractures while drilling
AssigneeBaker Hughes Incorporated
InventorsMichael B. Rabinovich, Daniel T. Georgi
Life of this patent
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Abstract
A method for identifying drilling induced fractures while drilling a wellbore into a formation is disclosed. The method includes: obtaining multi-component induction data collected by a drill string including a multi-component induction tool; processing the data to estimate values for principal components; and identifying drilling induced fractures from the principal components. An instrument and a computer program product are disclosed.
Claims11
A method for identifying drilling induced fractures while drilling a wellbore into a formation, the method comprising:
- obtaining multi-component induction data collected by a drill string comprising a multi-component induction tool;
- processing the data using multi-frequency focused (MFF) processing to estimate values for formation resistivity in both the X and Y directions;
- and
- identifying drilling induced fractures when the formation resistivity in the Y direction changes more than the formation resistivity in the X direction changes.
An instrument for identifying drilling induced fractures in a formation surrounding a wellbore, the instrument comprising:
- at least one set of coils adapted for generating a field in the formation, the set further adapted for obtaining multi-component induction data from the field;
- and
- a processor equipped to process data to estimate using multi-frequency focused (MFF) processing formation resistivity in both the X and Y directions and identify drilling induced fractures when the formation resistivity in the Y direction changes more than the formation resistivity in the X direction changes.
A non-transitory computer readable media encoded with a computer program product, the product comprising computer executable instructions for identifying a fracture in a subterranean formation, the instructions comprising instructions for:
- receiving multi-component induction data collected by a multi-component induction tool;
- processing the data using multi-frequency focused (MFF) processing to estimate values for formation resistivity in both the X and Y directions;
- and
- identifying drilling induced fractures when the formation resistivity in the Y direction changes more than the formation resistivity in the X direction changes.
Dependencies are inferred from the claim text.