1887

Abstract

Calibration of seismic amplitude response requires accurate models of the acoustic properties of sands, their bounding shales, and pore fluids at varying conditions of pressure, temperature and depth of burial. Such models are constructed from careful, rigorous and integrated analysis of geological, petrophysical (LWD/wire-line & core data) and seismic data. Progress in describing and modeling the acoustic properties of sandstone reservoirs, their bounding shales and pore fluids in Inboard Sabah area will be summarized in this poster. The fundamental workflows of building rock and fluid model that has been developed are: Edit and QC well logs against the core data. Perform basic petrophysical evaluation (Fig 1). • Establish fluid property model via laboratory measurements (PVTsim), and mineral property model via petrology studies (XRD analysis). • With the fluid property model, correct the bulk density log for invasion. With fluid and mineral property models, perform Gassmann Substitution for hydrocarbon-saturated intervals to 100% brine. Perform event-extraction on log properties and derive rock property model (Fig 2 & 3). Perform seismic amplitude calibration studies. The plan is to constrain each field in the Inboard Sabah area by a set of high-quality rock and fluid property relationships, which are used for pre-drill prediction of reservoir quality in neighbouring exploration prospects.

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/content/papers/10.3997/2214-4609-pdb.259.P2
2004-12-15
2024-03-28
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609-pdb.259.P2
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