TY - JOUR
T1 - Design, implementation and application of the Marchenko plane-wave algorithm
AU - Thorbecke, Jan
AU - Almobarak, Mohammed
AU - IJsseldijk, Johno van
AU - Brackenhoff, Joeri
AU - Meles, Giovanni
AU - Wapenaar, Kees
PY - 2024
Y1 - 2024
N2 - The Marchenko algorithm can suppress the disturbing effects of internal multiples that are present in seismic reflection data. To achieve this, a set of coupled equations with four unknowns is solved. These coupled equations are separated into a set of two equations with two unknowns using a time window. The two unknown focusing functions can be resolved by an iterative or direct method. These focusing functions, when applied to reflection data, create virtual point-sources inside the medium. Combining individual virtual point-sources into a plane-wave leads to an efficient computation of images without internal multiples. In this study the internal multiples are eliminated in a redatuming step which is part of the imaging algorithm. To use the Marchenko algorithm with plane-wave focusing functions, the time window that separates the unknowns must be adapted. The design of the plane-wave Marchenko algorithm is explained and illustrated with numerically modeled and measured reflection data.
AB - The Marchenko algorithm can suppress the disturbing effects of internal multiples that are present in seismic reflection data. To achieve this, a set of coupled equations with four unknowns is solved. These coupled equations are separated into a set of two equations with two unknowns using a time window. The two unknown focusing functions can be resolved by an iterative or direct method. These focusing functions, when applied to reflection data, create virtual point-sources inside the medium. Combining individual virtual point-sources into a plane-wave leads to an efficient computation of images without internal multiples. In this study the internal multiples are eliminated in a redatuming step which is part of the imaging algorithm. To use the Marchenko algorithm with plane-wave focusing functions, the time window that separates the unknowns must be adapted. The design of the plane-wave Marchenko algorithm is explained and illustrated with numerically modeled and measured reflection data.
KW - Internal multiples
KW - Marchenko algorithm
KW - OpenSource implementation
KW - Plane-waves
UR - http://www.scopus.com/inward/record.url?scp=85189460654&partnerID=8YFLogxK
U2 - 10.1016/j.cageo.2024.105577
DO - 10.1016/j.cageo.2024.105577
M3 - Article
AN - SCOPUS:85189460654
SN - 0098-3004
VL - 187
JO - Computers and Geosciences
JF - Computers and Geosciences
M1 - 105577
ER -