Overview of Mozambique Digital Atlas MOZDA MOZDA 2014 Release - - PowerPoint PPT Presentation

Overview of Mozambique Digital Atlas MOZDA

MOZDA 2014 Release

MOZDA 2014 - Mozambique Digital Atlas

• A regional framework of Mozambique

– Wells, Headers, Formation Tops, – Seismic Stratigraphic Framework – Key Horizons – Potential Field Data

• Industry standard formats

– GIS – Kingdom

• In collaboration with INP and based on

released data

MOZDA 2014 – Overview Report and GIS Database

• Overview Report

– Description of MOZDA – Regional geological summary – Summary of past exploration activity – Technical references

• GIS Database

– Hyperlinks to key figures and sections – Regional maps – Geoseismic sections – INP released well and seismic data

MOZDA 2014 – Regional Composite Lines

• Regional composite profiles

– Onshore-offshore lines, over 50 profiles and over 16,500 kms 2D seismic – Provide regional Seismic Stratigraphic Framework – Five regional horizons – Composite lines vary from 90 to 735 kms in length

• Industry standard formats

– SEGY for composite lines – Interpreted horizons available as grid files – Geoseismic sections

• Selected in collaboration with INP
• Discounted fees for volume purchases

MOZDA 2014 – Regional Composite Example

MOZDA 2014 – Regional Composite Example

Example of 3D Amplitude Summation INP Regional Composite (INP – 40, length 420 kms)

MOZDA 2014 – Regional Wells

• Regional Wells

– Over 50 regional wells, many linked to the regional seismic composite profiles – Well Montages – Well Summary Sheets – Formation Tops – Time-depth data

• Well Correlation Panels
• Well data packages available to

license separately from INP

MOZDA 2014– Well Montages

MOZDA 2014 – Regional Mapping

• Regional time mapping

– 7 regional horizons (seabed, top Pliocene, mid Miocene, base Tertiary, top Lower Domo Shale, lower Cretaceous (Aptian) unconformity, basement) – Mapping updated in 2014 – Consistent with regional composite profiles

• Grid files included

MOZDA 2014 – Regional Potential Field Data

• Regional potential field data

– Published satellite data – Published gravity data (Sandwell & Smith) – Compiled airborne, land and marine gravity – Compiled airborne, land and marine magnetics – G&M profiles for selected regional seismic composite lines

• Delivered within GIS as image and grid

files

Data packages available to license separately from INP

MOZDA 2015

Proposed - joint projects with INP for 2015

MOZDA 2015

MOZDA 2015 release aims to provide additional base data on the petroleum system elements with all data being provided in GIS format. Recommended MOZDA 2015 projects include:

• New - Mozambique Field Atlas
• New - Shows database
• New - Geochemical database
• New - Dry Well Database
• New - Seismic interpretation of newly released data
• New - Presence / effectiveness maps for source, seal and reservoir
• Updated - Regional chronostratigraphic interpretation by basin
• Updated - Play definition and play cartoons
• Updated - Basin Modelling

Mozambique Field Atlas

• The objective is to provide a summary of the known fields and

undeveloped discoveries in the Mozambique basins

• Key parameters including reservoir properties, recoverable reserves

and trapping styles are addressed along with any available production data

Hydrocarbon Shows Database

• The purpose is to provide data on the distribution type and quality of

shows to help “ground-truth” maps of source rock effectiveness

Data entry form showing data types Database can be queried in GIS

Updated Regional Chronostratigraphic Interpretation

• Numerous generalised stratigraphic sections can be found in the

public domain

• The aim is to create regional chronostratigraphic diagrams tied to

wells highlighting the main sequences

Play Definition and Play Cartoons

• Mozambique is a very large country with numerous play types both

proven and prospective

• The aim is to establish a play inventory and using dry well analysis

establish whether any valid tests have been made

• Using seismic and wells we aim to summarise the plays identified

using new and updated play cartoons

Updated work from ECL, 2000

Geochemical Database

• Geochemical data is available in a variety of unstructured formats

such as well reports, regional compilations and multi well studies

• Data has a variety of vintages.
• All this will be entered into a database within the GIS structure to

enable rapid queries and hyperlinks to key documents

Dry Well Database

• Aim is to assess the cause of failure for each exploration well in each
• f the plays
• Assess whether the well is a valid test of the play
• Symbolise the results in GIS as an aid to mapping the play chance of

reservoir, charge and seal and hence overall play chance

Example Only

This project provides a valuable check during the mapping of petroleum system elements

Additional Seismic Interpretation

• Additional seismic data is available through relinquishments. For

example the 3D data in Block 16/19 which covers the Njika discovery

• There are additional horizons which need to be mapped, particularly

in the Tertiary adjacent to the Rovuma and Zambezi deltas.

• Additional data to include in Rovuma
• Incorporation of Schlumberger MC Data ?
• Development of a lead and prospect inventory

– for the open blocks – held blocks ?

Presence, Effectiveness and Play Fairway Mapping

• Once the databases and seismic interpretation is in place we aim

carry out an assessment of the identified plays using play based exploration methodology.

Example from www.gas-oil-technology.com Example from Nova Scotia

Utilise Petrel – Petroleum Systems Modelling ?

INP ERCL Carlos Zacarias, Exploration Manager carlos.zacarias@inp.gov.mz Huw Edwards, Managing Director huw.edwards@ercl.com

• r

Jose Branquinho, Resource Assessment Director jose.branquinho@inp.gov.mz

• r

Richard Heath, Director richard.heath@ercl.com

For further details please contact:

Mozambique Digital Atlas (MOZDA)

Thank you for your attention

ERCL Ltd

ERCL Ltd