Verification of velocity-resistivity relationships derived from structural joint inversion with borehole data

M. Moorkamp, A.W. Roberts, M. Jegen, B. Heincke, R.W. Hobbs

Publikation: Bidrag til tidsskriftArtikelForskningpeer review

42 Citationer (Scopus)

Abstrakt

We present results of three-dimensional joint inversion of seismic, magnetotelluric, and gravity data over a marine salt dome. Such structures are difficult to image with a single method, and our results demonstrate how combining different techniques can yield improved results. More importantly, we examine the reliability of velocity-conductivity relationships derived from structure-coupled joint inversion approaches. Comparison with a seismic reflection section shows that our models match the upper limit of the salt. Furthermore, velocity and resistivity logs from a borehole drilled into the salt dome's flank match, within error, those recovered by the inversion. The good match suggests that the difference in length scale does not have a significant effect in this case. This provides a strong incentive to incorporate borehole data into the joint inversion in the future and substantiates approaches that use the relationships derived from joint inversion models for lithological classification.

OriginalsprogEngelsk
Sider (fra-til)3596-3601
Antal sider6
TidsskriftGeophysical Research Letters
Vol/bind40
Udgave nummer14
DOI
StatusUdgivet - 28 jul. 2013
Udgivet eksterntJa

Programområde

  • Programområde 3: Energiressourcer

Fingeraftryk

Dyk ned i forskningsemnerne om 'Verification of velocity-resistivity relationships derived from structural joint inversion with borehole data'. Sammen danner de et unikt fingeraftryk.

Citationsformater