An Amplitude-normalized Pseudo Well-log Construction Method and its Application on AVO Inversion in a Well-absent Marine Area

• Autorzy: Fan Ch. , Song Y. , Zhang Y. , Jiang Z.

Identyfikatory

DOI

10.1515/acgeo-2015-0010

• Języki publikacji: EN

Abstrakty

EN

AVO inversion is hard to be efficiently applied in unexploited fields due to the insufficiency of well information. For the sake of AVO inversion in a well-absent area, the most conventional method is to construct pseudo well-logs by defining seismic processing velocity as the P-velocity and computing S-velocity and density using empirical formulas, yet the resolution of the corresponding earth models and final inverted results could be extremely low, and a rough formula could destroy the inversion thoroughly. To overcome this problem, an amplitudenormalized pseudo well-log construction method that reconstructs pseudo well-logs in accordance with computed P-wave reflection amplitudes and nearby drilling data is proposed in this paper. It enhances the inversion resolution efficiently with respect to the real elastic parameter relationships, so that the corresponding AVO inversion results are reasonably improved. In summary, the proposed method is successfully applied in the AVO inversion of a well-absent marine area, and could be valuable in the early phase, particularly of the offshore hydrocarbon exploration.

Słowa kluczowe

EN

well-absent pre-stack seismic AVO inversion; marine exploration; reservoir appraisal; pseudo well-logs reconstruction

PL

inwersja AVO; dane sejsmiczne; badania morskie; pomiary morskie

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2015
• Tom: Vol. 63, no. 3
• Strony: 761--775
• Opis fizyczny: Bibliogr. 10 poz., rys., wykr.

Twórcy

autor

Fan Ch.

• China University of Petroleum – Beijing, Beijing, China

autor

Song Y.

• China University of Petroleum – Beijing, Beijing, China

autor

Zhang Y.

• China University of Petroleum – Beijing, Beijing, China
• Petroleum Exploration & Production Research Institute, SINOPEC, Beijing, China

autor

Jiang Z.

• Petroleum Exploration & Production Research Institute, SINOPEC, Beijing, China

Bibliografia

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