PREDICTING HYDRAULIC FRACTURE PROPAGATION

摘要

The present disclosure is related to methods and apparatuses for acoustic velocity well logging. The method may include estimating a magnitude of a principal horizontal stress in a borehole in a formation. The method may include obtaining a far field stress orientation and making a measurement of near borehole stress orientation. The present disclosure also includes an apparatus configured to be conveyed into a borehole and perform the method. Formation stresses and directions may be estimated.

主权项

1. A method for characterizing an earth formation, comprising:
obtaining at least one limited aperture measurement at frequencies greater than 20 kHz in a measurement borehole penetrating the earth formation and obtaining a principal direction of a near field stress using the at least one limited aperture measurement; and obtaining a magnitude of a horizontal principal stress; using the principal direction of the near field stress and the magnitude of the horizontal principal stress to estimate a principal direction of a far field stress; and using the principal direction of the far-field stress to predict propagation of a hydraulic fracture to be produced in the formation.