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State Energy Research Advisory Committee (SENRAC) Project 2/86 - Moomba and Big Lake Fields, log and special core analysis for improved reserves assessment. Analytical data and progress reports for the period August 1987 to January 1989.
Published: 18 Jan 1989 Created: 28 Oct 2024 Revised: 07 Dec 2024
Author: Cass, D.;Martin, R.R.;East, R.;Thorpe, J.;Morton, J.G.G.

This project, initiated and managed by SADME, aimed to improve in-house methods of petrophysical log analysis in order to more reliably estimate producible gas reserves in the Moomba and Big Lake Fields, via more accurate estimation of reservoir...

This project, initiated and managed by SADME, aimed to improve in-house methods of petrophysical log analysis in order to more reliably estimate producible gas reserves in the Moomba and Big Lake Fields, via more accurate estimation of reservoir porosity, permeability and water saturation. This objective was achieved by - 1) calibrating log-derived gas reservoir petrophysical data by comparison with accurate core-derived data, measured at overburden conditions where possible. The relevant core data includes porosity, permeability, cation exchange capacity, grain density, electrical properties and capillary pressure measurements; 2) developing accurate algorithms for porosity and shale volume factor, and using the Waxman-Smits equation in log analysis to better estimate water saturation; 3) assessing the critical cut-off properties characterising productive versus non-productive gas reservoirs.

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About this record

Record No mesac14425
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Departmental Publication - Energy Geoscience
Contributor South Australia. Department of Mines and Energy. Oil, Gas and Coal Division;Amdel Ltd
Sponsor South Australia. Department of Mines and Energy. Oil, Gas and Coal Division
Tenement
Tenement Holder
Operator
Geological Province Cooper Basin
Mine Name Big Lake Gas Field;Moomba Gas Field
Stratigraphy
Commodity
    Notes 
    Notes: Amdel reports F6896/88, Parts 1-6 and 5A, F6727/87 - Final, F6898/87 - Final.  Funding for this project was derived as follows: State Energy Research Advisory Committee (SENRAC) (for Amdel SCAL work) - $31,050; SADME (for project...
    Notes: Amdel reports F6896/88, Parts 1-6 and 5A, F6727/87 - Final, F6898/87 - Final.  Funding for this project was derived as follows: State Energy Research Advisory Committee (SENRAC) (for Amdel SCAL work) - $31,050; SADME (for project supervision, computing and preliminary core analyses) - approximately $60,000.  Includes special core analysis data generated by Amdel Ltd for core plugs from 14 wells, the data comprised as follows:  - core porosity and core permeability values at net overburden pressure (plus some read at ambient) for 252 core plugs;  - wet chemistry cation exchange capacity plus absolute grain density measurements for 200 of the above core plugs;  - determinations for a selected subset of 32 core plugs of capillary pressure behaviour, irreducible water saturation and electrical properties (by multiple salinity method) at overburden conditions.  Besides the hard copies of Moomba and Big Lake well core analyses contained  in this Envelope, a digital data base which includes these plus all other Cooper Basin petrophysical core data has been generated as a subset of the SADME PETLOG petroleum well log database.  From October 1986 to February 1990 this SENRAC project was expanded, as NERDDP Project 1033 funded by the Commonwealth Government, to investigate and re-assess the log analysis methods being used by industry and government for calculating the gas reserves in all fields within the Cooper Basin in South Australia. The results of this wider investigation and supporting data are reported in Env 6757.
Geographic Locality: Moomba;Big Lake
Doc No: Env 06860
Drillhole: Big Lake 1;Big Lake 2;Big Lake 3;Big Lake 27;Big Lake 31;Big Lake 32;Big Lake 35;Moomba 8;Moomba 10;Moomba 45;Moomba 47;Moomba 51;Moomba 52;Moomba 53

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    Language English
    Metadata Standard ISO 19115-3

    Citations

    Use constraints License
    License Creative Commons Attribution 4.0
    Persistent identifier https://pid.sarig.sa.gov.au/document/mesac14425
    Citation Cass, D.;Martin, R.R.;East, R.;Thorpe, J.;Morton, J.G.G. 1989. State Energy Research Advisory Committee (SENRAC) Project 2/86 - Moomba and Big Lake Fields, log and special core analysis for improved reserves assessment. Analytical data and progress reports for the period August 1987 to January 1989. Departmental Publication - Energy Geoscience. Government of South Australia.
    https://pid.sarig.sa.gov.au/document/mesac14425

    Technical information

    Status
    Maintenance and Update Frequency
    Geographic Reference GDA2020 (EPSG:7844)
    Geo bounding box {"type":"Polygon","coordinates":[[[139.5,-29],[141,-29],[141,-28],[139.5,-28],[139.5,-29]]]}
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