Lithology evaluation of a Bazhenov formation reservoir using seismic and well log analysis

N. Y. Lomakina, V. B. Belozerov, N. V. Bukhanov

Research output: Contribution to journalConference article

Abstract

The Bazhenov formation is the analog of the Bakken formation; these formations are source rocks and contain tight reservoirs of a tectonic-hydrothermal model. The interpretation of well logs begins with the identification of the Bazhenov marker and tracing a carbonate layer within the Bazhenov formation by GR, neutron and DT logs. The thickness of this layer varies from 1 to 2 m. The next step is seismic interpretation. The creation of 2D seismic forward models is presented in this paper. In these models, the behavior of the amplitude with and without a carbonate layer was studied. These models allow tracing the sign of a carbonate layer (negative amplitude peak). The analysis of 3D seismic cube slices was performed. An amplitude map was created. The distribution of carbonate rock was detected according to this map. Thus, using this approach a thin layer was determined within the Bazhenov formation.

Original languageEnglish
Article number012047
JournalIOP Conference Series: Earth and Environmental Science
Volume24
Issue number1
DOIs
Publication statusPublished - 1 Jan 2015
EventScientific and Technical Challenges in the Well Drilling Progress - Tomsk, Russian Federation
Duration: 24 Nov 201427 Nov 2014

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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