Copyright © 2003 - 2018 Earthworks Environment & Resources Ltd. All rights reserved

Technical papers

The selection of technical papers presented below detail

recent contributions presented by Earthworks Reservoir

globally at conferences and conventions. To find out more

about Earthworks Reservoir and the authors, get in touch

at info@earthworks-reservoir.com

Geophysics

You can find the more about the following previously published technical papers in the

Geophysics section.

Reservoir Connectivity and Fluid Uncertainty Analysis using Fast Geostatistical Seismic

Inversion 

Stochastic seismic inversion enables the uncertainty in seismic inversion to be explored. This paper was first presented in Bahrain at the GEO 2010 exhibition. Download PPS: Bahrain_GEO2010.pps (7.36 Mb)

Pre-Stack Stochastic Inversion of the Brenda Field 

Joint AI-GI stochastic seismic inversion was performed for the Brenda field. Stochastic

inversion enables the possible variability in impedance, and hence the uncertainty in

lithology and fluid classification, to be explored.

On-line show: Brenda Stochastic Inversion

Extended Elastic Impedance and its Relation to AVO Crossplotting and Vp/Vs 

Extended Elastic Impedance (EEI) has proved to be a highly convenient framework for seismic

AVO studies. The directness of the EEI method is one of its strengths, making it unnecessary

to perform intermediate steps such as examining conventional AVO attributes (eg intercepts

and gradients). This paper, presented by Graham Hicks and Ashley Francis at the EAGE 68th

Conference & Exhibition, Vienna, Austria, 12 - 15 June 2006, explains some of the parallels

between conventional AVO and EEI analysis and introduces a new AVO attribute for estimating

background Vs/Vp ratio.

Download PDF document: EAGE_ExtendedAbstract.pdf (0.7 Mb)

Technical Note: Ardmore Field Extended Elastic Impedance Study This Technical note is a case study describing deterministic inversion work undertaken by Earthworks on the Ardmore Field, UKCS. In addition it serves as a briefing document on our methods of applying Extended Elastic Impedance to predict reservoir properties. A short version was presented by Ashley Francis and Graham Hicks at the EAGE 68th Conference & Exhibition, Vienna, Austria, 12 - 15 June 2006. Download PDF document: EAGE_ExtendedAbstract.pdf (2.2 Mb) Download PDF document: ArdmoreFieldTechnicalNote.pdf (11.1 Mb) How Uncertain is your Seismic Inversion? Our ultraFast stochastic seismic inversion technology is still being improved. To understand the uncertainty in seismic inversion please see our Deterministic and Stochastic Comparison  Technical Note: Coloured, Deterministic and Stochastic Inversion This technical note is intended to provide information on Earthwork's capabilities to undertake seismic inversion. In addition, it also serves as a briefing document on our ultra- FAST stochastic inversion technology with which we can perform stochastic inversion studies on a routine basis Download PDF document: StochasticInversionTechnicalNote.pdf (1.8 Mb)

Geostatistics

You can find the more about the following previously published technical papers in the

Geostatistics section.

Traps for the Unwary Subsurface Geoscientist 

Presented at SEG Development & Production Forum, 24-29 June, 2001, Taos, New Mexico, USA

Download: SegDP2001keynote.pdf (1.4 Mb)

Post-Processing Geostatistical Realisations - the Spillpoint

Presented at SEG Development & Production Forum, 11-16 July, 1999, Kananaskis, Canada

Download: SegDP1999.pps (7.3 Mb)

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