Advanced Search
DSpace@MIT

Simultaneous least squares deconvolution and kriging using conjugate gradients

Research and Teaching Output of the MIT Community

Show simple item record

dc.contributor.author Kane, Jonathan
dc.contributor.author Rodi, William
dc.contributor.author Toksoz, M. Nafi
dc.contributor.other Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.date.accessioned 2012-01-17T17:53:15Z
dc.date.available 2012-01-17T17:53:15Z
dc.date.issued 2001
dc.identifier.uri http://hdl.handle.net/1721.1/68600
dc.description.abstract Least squares deconvolution is a method used to sharpen tomographic images of the earth by undoing the bandlimiting effects imposed by a seismic wavelet. Kriging is a method used by geoscientists to extrapolate and interpolate sparse data sets. These two methodologies have traditionally been kept separate and viewed as unrelated fields of research. We demonstrate the connection between these methods by deriving them both as examples of linear inversion. By posing the methods in this way we can define a joint inverse problem in which observed values of reflectivity in wells are used to improve deconvolution, and, conversely, seismic data is used to help extrapolate well data. Solving this joint problem involves the solution of large sparse sets of linear equations. Due to the structure of the problem, the conjugate gradients method is ideal to perform the solution. Preliminary results show that convergence to a solution for a 3-D problem is fast and accurate, requiring only a few iterations. This methodology can be of great use to interpreters by sharpening the post stack image as well as helping to tie seismic data to wells. en_US
dc.publisher Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.relation.ispartofseries Earth Resources Laboratory Industry Consortia Annual Report;2001-04
dc.title Simultaneous least squares deconvolution and kriging using conjugate gradients en_US
dc.type Technical Report en_US
dc.contributor.mitauthor Kane, Jonathan
dc.contributor.mitauthor Rodi, William
dc.contributor.mitauthor Toksoz, M. Nafi
dspace.orderedauthors Kane, Jonathan; Rodi, William; Toksoz, M. Nafi en_US


Files in this item

Name Size Format Description
kane1.pdf 1.979Mb PDF

This item appears in the following Collection(s)

Show simple item record

MIT-Mirage