On Backus average in modelling guided waves

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

On guided waves in photonic crystal waveguides

The paper addresses the issue of existence of modes guided by linear defects in photonic crystals. Such modes can be created in spectral gaps of the bulk materials and are evanescent in the bulk.

متن کامل

Guided Waves in Slight, Azimuthally

A method of calculating dispersion curves for guided waves in slight, azimuthally anisotropic formations is developed with perturbation theory. The fluid is assumed to be inviscid, the formation perfectly elastic and homogeneous, and the ·borehole wall cylindrical. The first step is calculating the elastic moduli for a transversely isotropic formation whose moduli are close to those for the azi...

متن کامل

Guided Waves monitoring

Lo screening di tubazioni utilizzando il metodo ad onde guidate è una realtá assodata sia in Italia che nel resto del mondo. I metodi PND tradizionali sono metodi per il controllo di punti o di aree ad estensione limitata. Inoltre il target della ispezione diventa di anno in anno più complesso a causa dell’invecchiamento delle strutture e delle carenze tecniche di alcuni metodi PND classici, ev...

متن کامل

On Guided Electromagnetic Waves in Photonic Crystal Waveguides

This paper addresses the issue of existence and confinement of electromagnetic modes guided by linear defects in photonic crystals. Sufficient conditions are provided for the existence of such waves near a given spectral location. Confinement to the guide is achieved due to a photonic band gap in the bulk dielectric medium.

متن کامل

On the group velocity of guided waves in drill strings.

A key element to verify the drill-bit signal processing is the estimation of the time delay of the guided waves transmitted through the drill string from the bit to the surface. This delay can be measured from drill-bit vibrations or calculated using the mechanical properties of the drill string. The calculation of the complete solution and the exact dispersion relations requires expensive nume...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Applied Geophysics

سال: 2019

ISSN: 0926-9851

DOI: 10.1016/j.jappgeo.2019.07.009