Open Access Open Access  Restricted Access Subscription or Fee Access

Hydrocarbon Detection Using Anisotropy Parameter Calculated by Tomographic Inversion of P-, SH- And SV-waves of Crosswell Seismic Data

T. Suroso, H. Laksono, W. Triyoso, A. Priyono

Abstract



We detected hydrocarbon by studying anisotropy parameter integrated with reservoir characterization using a set of crosswell seismic, well log and surface seismic data. We employed non-linear tomographic inversion technique to invert the traveltimes picked from P-, SH- and SV-waves. Anisotropy parameter were estimated by Shear Wave Splitting method of SH- and SV- waves. Poisson’s ratio is calculated based on VP and VS. A crossplot of VP/VS – Poisson’s ratio was used to predict the hydrocarbon phase on the observation target. And a 3-D crossplot was used to locate the depth of the reservoir layers containing hydrocarbon. We validated the gas case reservoirs with well data. In our study, the sand reservoirs with gas case on the crossplot of VP/VS – Poisson’s ratio is correlated to the anisotropy value. We conclude that anisotropy can be used as attribute to characterize hydrocarbon reservoir. The studied anisotropy is correlated to reservoir containing hydrocarbon.

Keywords


tomography, crosswell seismic, VP, VSH, VSV, anisotropy, reservoir characterization

Full Text:

PDF


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information.