Cristin-resultat-ID: 2031606
Sist endret: 14. juni 2022, 00:34
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2021

Application of the Analysis of Variance for Converting Dynamic to Static Young’s Modulus

Bidragsytere:
  • Javad Sharifi
  • Mohammad Nooraiepour og
  • Md Nazmul Haque Mondol

Bok

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2021
ISBN:
  • 9781613997918

Klassifisering

Fagfelt (NPI)

Fagfelt: Anvendt geologi og petroleumsfag
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

Application of the Analysis of Variance for Converting Dynamic to Static Young’s Modulus

Sammendrag

A statistical methodology was presented for interpreting dynamic-to-static relationships. Respecting the importance of the Young’s modulus in seismic geomechanics, as case study was performed on the dynamic-to-static Young’s modulus conversion. To this end, six core samples from the studied oilfield were selected and in-situ stress curves were obtained. Next, in order to obtain static properties of the selected rocks, rock mechanics test were carried out under reservoir condition. In the same way, dynamic test was further performed using ultrasonic in the laboratory. Once finished with obtaining the static and dynamics values, simple linear regression and forward and backward stepwise multiple linear regressions were developed. Then empirical equations were developed for obtaining static Young’s modulus based on dynamic Young’s modulus, density, and porosity. Next, the developed formulations were interpreted by the analysis of variance (ANOVA). The results showed that, due to the small sample size, the regression analysis alone could not provide significant relationships, highlighting the important roles of other statistical methods (e.g., F-test and t-test) in the reliability evaluation of the relationships. The findings of the present article provide a methodology for obtaining regression-based relationships for seismic geomechanics and reservoir modelling applications, especially where limited core samples are available.

Bidragsytere

Javad Sharifi

  • Tilknyttet:
    Forfatter

Mohammad Nooraiepour

  • Tilknyttet:
    Forfatter
    ved Institutt for geofag ved Universitetet i Oslo

Md Nazmul Haque Mondol

  • Tilknyttet:
    Forfatter
    ved Institutt for geofag ved Universitetet i Oslo
  • Tilknyttet:
    Forfatter
    ved Integrerte geofag ved Norges Geotekniske Institutt
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