Overview of Mozambique Digital Atlas MOZDA. MOZDA 2014 Release

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1 Overview of Mozambique Digital Atlas MOZDA MOZDA 2014 Release

2 MOZDA 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

3 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

4 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

5 MOZDA 2014 Regional Composite Example

6 MOZDA 2014 Regional Composite Example Example of 3D Amplitude Summation INP Regional Composite (INP 40, length 420 kms)

7 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

8 MOZDA 2014 Well Montages

9 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

10 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

11 MOZDA 2015 Proposed - joint projects with INP for 2015

12 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

13 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

14 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

15 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

16 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

17 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

18 Dry Well Database Aim is to assess the cause of failure for each exploration well in each of 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

19 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?

20 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 Utilise Petrel Petroleum Systems Modelling? Example from Nova Scotia

21 Mozambique Digital Atlas (MOZDA) For further details please contact: INP Carlos Zacarias, Exploration Manager ERCL Huw Edwards, Managing Director or Jose Branquinho, Resource Assessment Director or Richard Heath, Director

22 Thank you for your attention ERCL Ltd ERCL Ltd