Instantaneous Attributes Applied to Full Waveform Sonic Log and Seismic Data in Integration of Elastic Properties of Shale Gas Formations in Poland

Kamila Wawrzyniak-Guz,M Borowski,J Jarzyna,T Lipecki

doi:10.1051/e3sconf/20183503007

Kamila Wawrzyniak-Guz, M Borowski + Show 2 more

Open Access

https://doi.org/10.1051/e3sconf/20183503007

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Journal: E3S Web of Conferences	Publication Date: Jan 1, 2018
Citations: 1	License type: CC BY 4.0

Affiliation: AGH University of Krakow

Abstract

Seismic attributes calculated from full waveform sonic log were proposed as a method that may enhance the interpretation the data acquired at log and seismic scales. Though attributes calculated in the study were the mathematical transformations of amplitude, frequency, phase or time of the acoustic full waveforms and seismic traces, they could be related to the geological factors and/or petrophysical properties of rock formations. Attributes calculated from acoustic full waveforms were combined with selected attributes obtained for seismic traces recorded in the vicinity of the borehole and with petrophysical parameters. Such relations may be helpful in elastic and reservoir properties estimation over the area covered by the seismic survey.

Highlights

In shale gas deposits elastic and reservoir properties of rocks are one of the most significant parameters in hydrocarbon prospection
Seismic attributes calculated from full waveform sonic log and from seismic data were proposed as a method that may enhance the interpretation the data acquired at various scales
When the axes of acoustic full waveforms were rotated into seismic survey orientation it was possible to import the acoustic full waveforms into the seismic software, such as HampsonRussell software

Summary

Introduction

In shale gas deposits elastic and reservoir properties of rocks are one of the most significant parameters in hydrocarbon prospection. They can be derived from seismic surveys, well logging measurements or laboratory tests. Seismic attributes calculated from full waveform sonic log and from seismic data were proposed as a method that may enhance the interpretation the data acquired at various scales. Ja Mb and Sa Fm are considered as formations with high hydrocarbon potentials. These formations are rich in organic matter and are characterized by elevated TOC content up to 7 wt.% in investigated borehole [1] (Fig. 1)

Well log and seismic data

Methodology

Summary