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Multivariate imputation via chained equations for elastic well log imputation and prediction

Antony Hallam - Nama Orang; Debajoy Mukherjee - Nama Orang; Romain Chassagne - Nama Orang;

Well logging is essential in studies which require an understanding of the subsurface geology and depositional conditions. Unfortunately, the measurements are rarely complete and missing data intervals are common due to operational issues or malfunction of the logging equipment. Therefore the imputation of missing data from down-hole well logs is a common problem in subsurface workflows. Recently, many different approaches have been used for imputation but they are often manual or data set specific. Machine learning has reignited interest in this field with promises of a more generic and simpler approach. We explore whether the chaining of machine learning for mutli-log imputation improves results by overcoming disparities in the patterns of missing data. Our research interest is primarily petroleum geophysics and therefore this study focuses on the elastic logs of compressional (DT) and shear (DTS) sonic along with the bulk density (RHOB). However, the method may be applied to all sufficiently large well log data sets in any industry.


Ketersediaan
129551.136Perpustakaan BIG (Eksternal Harddisk)Tersedia
Informasi Detail
Judul Seri
Applied Computing and Geoscience - Open Access
No. Panggil
551.136
Penerbit
Amsterdam : Elsevier., 2022
Deskripsi Fisik
14 hlm PDF, 10.208 KB
Bahasa
Inggris
ISBN/ISSN
2590-1974
Klasifikasi
551.136
Tipe Isi
text
Tipe Media
-
Tipe Pembawa
-
Edisi
Vol.14, June 2022
Subjek
-
Info Detail Spesifik
-
Pernyataan Tanggungjawab
-
Versi lain/terkait

Tidak tersedia versi lain

Lampiran Berkas
  • Multivariate imputation via chained equations for elastic well log imputation and prediction
    Well logging is essential in studies which require an understanding of the subsurface geology and depositional conditions. Unfortunately, the measurements are rarely complete and missing data intervals are common due to operational issues or malfunction of the logging equipment. Therefore the imputation of missing data from down-hole well logs is a common problem in subsurface workflows. Recently, many different approaches have been used for imputation but they are often manual or data set specific. Machine learning has reignited interest in this field with promises of a more generic and simpler approach. We explore whether the chaining of machine learning for mutli-log imputation improves results by overcoming disparities in the patterns of missing data. Our research interest is primarily petroleum geophysics and therefore this study focuses on the elastic logs of compressional (DT) and shear (DTS) sonic along with the bulk density (RHOB). However, the method may be applied to all sufficiently large well log data sets in any industry.
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Perpustakaan Badan Informasi Geospasial (BIG) adalah sebuah perpustakaan yang berada di bawah Badan Informasi Geospasial Indonesia. Perpustakaan ini memiliki koleksi yang berkaitan dengan informasi geospasial, termasuk peta, data geospasial, dan literatur terkait. Selengkapnya

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