The article describes a method of applying virtual source redatuming to land seismic data with shallow buried receivers and evaluation of potential improvements in post-stack repeatability associated with redatuming. In particular, we focus on examining how redatuming can handle three typical sources of land seismic non-repeatability: changes in acquisition geometry, variable source coupling and daily / seasonal changes in the near surface. One uses a synthetic model derived from log and well data and the acquisition parameters inspired by a recent field experiment conducted in one of the onshore fields in Saudi Arabia. We demonstrate that, in all cases, the virtual source method improves repeatability of redatumed stacked images even when the density of virtual sources is substantially smaller than that of the surface sources.
Translated title of the contributionIMPROVING REPEATABILITY OF LAND SEISMIC DATA USING VIRTUAL SOURCE METHOD
Original languageRussian
Pages (from-to)32-42
JournalТЕХНОЛОГИИ СЕЙСМОРАЗВЕДКИ
Issue number3
StatePublished - 2014

ID: 5750515