Patching and micropatching in seismic data interpolation

نویسنده

  • Sean Crawley
چکیده

I interpolate CMP gathers with PEFs arranged on a dense, radial grid. The radial grid facilitates preconditioning by radial smoothing, and enables the use of relatively large grid cells, which we refer to as micropatches. Even when the micropatches contain enough data samples that the PEF calculation problem appears overdetermined, radial smoothing still noticeably improves the interpolation, particularly on noisy data.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Optimizing design of 3D seismic acquisition by CRS trace interpolation

Land seismic data acquisition in most of cases suffers from obstacles in fields which deviates geometry of the real acquired data from what was designed. These obstacles will cause gaps, narrow azimuth and offset limitation in the data. These shortcomings, not only prevents regular trace distribution in bins, but also distorts the subsurface image by reducing illumination of the target formatio...

متن کامل

Attenuation of spatial aliasing in CMP domain by non-linear interpolation of seismic data along local slopes

Spatial aliasing is an unwanted side effect that produces artifacts during seismic data processing, imaging and interpolation. It is often caused by insufficient spatial sampling of seismic data and often happens in CMP (Common Mid-Point) gather. To tackle this artifact, several techniques have been developed in time-space domain as well as frequency domain such as frequency-wavenumber, frequen...

متن کامل

Seismic data interpolation beyond aliasing using regularized nonstationary autoregression

Seismic data are often inadequately or irregularly sampled along spatial axes. Irregular sampling can produce artifacts in seismic imaging results. We present a new approach to interpolate aliased seismic data based on adaptive predictionerror filtering (PEF) and regularized nonstationary autoregression. Instead of cutting data into overlapping windows (patching), a popular method for handling ...

متن کامل

Interferometric interpolation of missing seismic data

Interpolation of missing seismic data (such as missing nearoffset data, gaps, etc.) is an important issue in seismic surveys. Here we show that interferometry can be used to fill in some gaps in the data. The interferometric method creates virtual traces in the gaps by crosscorrelation of traces in a shot gather followed by summation over all shot positions. Compared to other interpolation meth...

متن کامل

Image-guided 3D interpolation of borehole data

A blended neighbor method for image-guided interpolation enables resampling of borehole data onto a uniform 3D sampling grid, without picking horizons and without flattening seismic images. Borehole measurements gridded in this way become new 3D images of subsurface properties. Property values conform to geologic layers and faults apparent in the seismic image that guided the

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000