Dipmap!of!sea!floor,!offshore!Italy! Dipmap!of!a!seismic!surface!

Dipmap!of!sea!floor,!offshore!Italy!
Dip'
Dipmap!of!a!seismic!surface!
Rela?ve'acous?c'impedance'
a!measure!of!acous,c!impedance!that!lacks!the!background!trend.!The!only!seismic!
impedance!aZribute!that!can!be!computed!directly!from!conven,onal!post5stack!seismic!
data!
Coherency'
Measures!con,nuity!between!seismic!traces!in!a!specified!window!along!a!picked!
horizon.!Can!be!used!to!map!the!lateral!extent!of!a!forma,on,!also!to!see!faults,!channels!
or!other!discon,nuous!features.!
Curvature'
Coherency!
Maximum!curvature!
A!group!of!post5stack!aZributes!that!are!computed!from!the!curvature!of!a!specified!
horizon,!including!magnitude!or!direc,on!of!maximum!curvature!!
Iden?fying'
environments'
Meandering!river!in!seismic!
horizon!slice!
Gulf!of!Thailand.!196!ms!TWT!
below!sea!floor!
From!Brown!2011!
Courtesy!of!Texas!Pacific!
Iden?fying'
facies'tracts'
Tuning'effect'
Construc,ve!or!destruc,ve!interference!to!alter!the!amplitude!of!the!
signal!where!two!reflectors!are!spaced!less!than!λ/4!apart!
Spectral'decomposi?on'