THE PETROLEUM DIRECTORATE, SIERRA LEONE. [OFFICE...

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THE PETROLEUM DIRECTORATE, SIERRA LEONE. [OFFICE OF THE PRESIDENT]

THE REPUBLIC OF SIERRA LEONE

TECHNICAL DATA AVAILABLE

Please send your Enquiries/Application to: (See Guidelines Documents)

THE PETROLEUM DIRECTORATE GOVERNMENT OF SIERRA LEONE Emmanshola House, Third Street, Off Regent Road, Hill Station, Freetown.

REPUBLIC OF SIERRA LEONE

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TECHNICAL DATA

TABLE OF CONTENTS

1 INTRODUCTION ................................................................................................. 3

1.1 DATA LICENSE AGREEMENT ................................................................... 3

1.2 DATA ROOM ................................................................................................. 3

2 CURRENT LICENSING ....................................................................................... 4

3 TECHNICAL DATA ............................................................................................. 5

3.1 PDSL GEOTECHNICAL DATA ................................................................... 6

3.1.1 TECHNICAL REPORTS ........................................................................ 6

3.1.2 WELL DATA .......................................................................................... 7

3.1.3 SEISMIC DATA ...................................................................................... 9

3.1.4 WORKSTATION PROJECTS .............................................................. 12

3.1.5 SLEDA PROJECT ................................................................................. 13

3.2 NON EXCLUSIVE TECHNICAL DATA ................................................... 14

3.2.1 MULTI-CLIENT SEISMIC DATA/ POTENTIAL FIELDS TGS ....... 14

3.2.2 GETECH REGIONAL STUDY ............................................................ 15

3.2.3 GETECH GRAVITY & MAGNETIC DATA ...................................... 16

3.2.4 GETECH MULTI-SAT ......................................................................... 17

3.3 DATA ROOM ............................................................................................... 18

4 FURTHER INFORMATION .............................................................................. 19

5 APPENDICES ..................................................................................................... 20

5.1 Appendix 1 Contents for SLEDA 2017 Release ........................................... 20

5.2 Appendix 2 Details of Released Seismic Data .............................................. 21

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1 INTRODUCTION

The Government of the Republic of Sierra Leone, through the Petroleum Directorate

(PDSL) wishes to invite Oil and Gas Companies for the upcoming offshore bidding

process, to explore for, and with the possibility of producing Hydrocarbons in Sierra

Leone.

This document provides an outline of the technical data available at the PDSL, to

license with a view to support future license applications.

1.1 DATA LICENSE AGREEMENT

All data released is available to license, subject to the signing of a Licensing

Agreement (LA) with the Petroleum Directorate. The LA can be delivered

upon request from the contacts list provided in this document or be

downloaded from www.pd-sl.com and www.pd.gov.sl.

Added Value products are also available to license from our partners at ERCL.

The technical database that an applicant company has will form a vital part of

the assessment principles.

1.2 DATA ROOM

The Petroleum Data Room hosts all PDSL technical databases and is available for

viewing at the Petroleum Directorate office in Freetown, Sierra Leone.

Also, ERCL can host a data room in the UK subject to PDSL approval.

The PDSL websites (www.pd.gov.sl and www.pd-sl.com ) contain general

information about the upcoming Bid Round, and the availability of technical data.

For any further queries, clarification or additional information, please contact us at

[email protected] or [email protected].

http://www.pd-sl.com/

http://www.pd.gov.sl/



mailto:[email protected]


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2 CURRENT LICENSING

Further details on the blocks on offer in Sierra Leone are provided on the following

website – www.pd-sl.com and www.pd.gov.sl.



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3 TECHNICAL DATA

PDSL, with assistance from ERCL, has compiled a comprehensive technical database,

using all the released technical data and these data are available for licensing by

companies applying for licenses in Sierra Leone.

The available data are described in detail in this section 3 and further information can

be downloaded from www.pd-sl.com and www.ercl.com/multi-client/sierraleone

There are also a number of other datasets including regional seismic, gravity,

magnetic and geological data available to license from other parties. These data and

sources are referenced in section 3.2.

The available technical data demonstrate the Exploration History of Sierra Leone and

are available to license to assist companies evaluate the Petroleum Potential and

Prospectivity of the Sierra Leone Basins both onshore and offshore.

Sierra Leone Basins Technical Data;

All available onshore technical data can be licensed directly from PDSL and other

third party entities.

Master License Agreement

All PDSL data is licensed subject to signature of a standard Master Licensing

Agreement (LA) with PDSL. Value Added studies can be licensed from our partners

at ERCL.

The LA can shortly be downloaded from www.pd.gov.sl or www.pd-sl.com or

requested from the contacts listed in section 4.


http://www.ercl.com/multi-client/sierraleone



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3.1 PDSL GEOTECHNICAL DATA

The PDSL technical database has been prepared from all the available data from

within it archives and includes:

PDSL – Technical Reports

PDSL – Well Data

PDSL – Seismic Data

PDSL – Gravity & Magnetic Data

The available technical data reflect the exploration activities that have been

undertaken in Sierra Leone. A Price List is available from PDSL/ERCL on request.

ERCL and the PD Technical team are in process of using the released technical data

to prepare added value reports and also in the preparation of the Sierra Leone Digital

Atlas (SLEDA) as described below in section 3.1.7.

The data are available to license from PDSL to assist companies evaluate the

Petroleum Potential and Prospectivity of the Sierra Leone Basins both onshore and

offshore.

3.1.1 TECHNICAL REPORTS

PDSL has identified a number of key regional technical reports that have been

prepared by various companies. These key regional reports are listed below:

Amoco Reports

TGS Interpretation Reports

Under its agreement with PDSL, ERCL is currently proposing the below Value Added

Study Reports:

1. Sierra Leone Regional Technical Overview Report

2. Sierra Leone Regional Gravity-Magnetic Structural Modelling

The regional reports provide a definitive technical reference for hydrocarbon

exploration in Sierra Leone.

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3.1.2 WELL DATA

The PDSL has released the 8 wells listed in the table below, full log suites and

numerous reports are available for licensing. If further details are required, please

refer to the contact details in Section 4 – Further Information.

Offshore Wells

Well Name Year Operator Well Status

A-1 1982 Mobil Oil shows

A-1-2 1985 Amoco Oil shows

Venus B-1 2009 Anadarko Discovery

Mercury-1 2010 Anadarko Discovery

Mercury-2 2012 Anadarko Appraisal

Jupiter-1 2012 Anadarko Discovery

Djembe-1 2012 Talisman Water wet

Savannah-1X 2013 Lukoil Discovery

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Well License Fee Costs

For the historic wells, individual well folders are available on a single

well basis. Packages for the purchase of multiple wells are available.

Note:

The well database is being regularly updated to include further information that

is currently being retrieved from PDSL archives.

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3.1.3 SEISMIC DATA

The PDSL seismic data includes seismic surveys of various vintages including the

Mabesi 3D survey acquired by Repsol in 2004 and reprocessed to PSDM by

Anadarko in 2009-2010. The Mabesi 3D covers the four hydrocarbon discoveries in

Sierra Leone.

The released 3D surveys will shortly be available to license from PDSL include the

following surveys:

Survey Name 2D or

3D

Data Volume (line

kms or sq kms)

Lukoil Reprocessed 3D Data 3D 1,000 sq kms

Repsol 2004 PSTM 3D Circa 4,150 sq kms

Anadarko 2009 3D Survey (PSDM) 3D Circa 4,150 sq kms

Sierra Leone 3D (Blocks 3, 4 and 5).

2008-2011

3D Circa 4,060 sq kms

Sierra Leone 3D (Blocks 4 and 5),

2008-2014


Sierra Leone 3D (Blocks 3, 4 and 5

Extension). 2008-2014


Sierra Leone Mega-Merge (Fusion) 3D Circa 6,121 sq kms

A Price List for the available seismic data is available from PDSL/ERCL on request.

2D seismic data is also available to license from third parties (TGS), as described in

section 3.2 and outlined below.

Survey Name / Year Data Volume

Sierra Leone 2D. 2001 5,784 Line kms

Sierra Leone 2D (Blocks 08A & 08B).

2013-2014

3,793 Line kms

Sierra Leone Infill 2D (SLI). 2013-2014 10,487 Line kms

Note: The data room project is being regularly updated to include any new released

seismic data from PDSL partners.

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3.1.4 WORKSTATION PROJECTS

Providing that the seismic data has been licensed, PDSL/ ERCL can issue the final

SEGY data directly to the Licensee, and ERCL can provide the seismic data in the

following workstation formats:

Kingdom

Petrel

GeoGraphix

DUG Insight

3.3: GRAVITY AND MAGNETIC DATA

A total of about 16,000 Kilometres of Gravity and magnetic data sets are available

from TGS. In addition third party data is available from Getech (please see Section

3.2.3)

3.4 AEROMAGNETIC DATA

A total of about 15,678 km2 of Aeromagnetic data sets are available (see image

below).

Aeromagnetic, gravity and magnetic data is available to license from TGS-NOPEC, as

described in Section 3.3 and detailed in the Appendices.

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3.1.5 SLEDA PROJECT

The Sierra Leone Digital Atlas (SLEDA) is an interpretive product currently being

undertaken by ERCL staff in collaboration with PDSL. SLEDA aims to provide a

regional geological framework for Sierra Leone.

SLEDA is based on the released PDSL technical database, and the underpinning data

is available to license separately.

SLEDA is available to license via the PDSL Master License Agreement. The first

release for SLEDA is expected to be August 2017. It is envisaged that SLEDA will

evolve, and companies will be offered the opportunity to subscribe to an online portal

to access developments to the study through 2017 and beyond.

In the 2017 release, which will be issued on USB with components provided in

industry standard format (ArcGIS / ArcMap / maps in grid files etc).

The contents listing for the 2017 release is included in Appendix 1.

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3.2 NON EXCLUSIVE TECHNICAL DATA

3.2.1 MULTI-CLIENT SEISMIC DATA/ POTENTIAL FIELDS TGS

Sierra Leone Infill 2013 2D = 10,487 Line km

Sierra Leone 2001 2D = 5,784 Line km

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3.2.2 GETECH REGIONAL STUDY

http://www.getech.com/regional-reports/getechs-equatorial-atlantic-2015/

http://www.getech.com/regional-reports/getechs-equatorial-atlantic-2015/

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3.2.3 GETECH GRAVITY & MAGNETIC DATA

http://www.getech.com/gravity-magnetic/sierra-leone/

http://www.getech.com/gravity-magnetic/sierra-leone/

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3.2.4 GETECH MULTI-SAT

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3.3 DATA ROOM

Data rooms are available to allow companies to view the PDSL released database in

the offices of PDSL (Sierra Leone). The data available to view in the data rooms

includes:

PDSL Digital Library

- Scanned Technical Reports

- Scanned Well Folders

Hardcopy of available Key Technical Reports (supplied as pdf in data

packages)

Kingdom Workstation Project – all available released and multiclient data

- PDSL seismic data

- PDSL well data

Entry to the data room will require signature of the “data room rules” (available on

request from data room coordinators). This requires that the name, title and company

of each visitor viewing the Information be disclosed in writing at the time the

appointments are made, and any changes thereto should be notified in writing before

entry to the respective Data Room. A small charge for attending the second day of the

Data Room offices will be made. The purpose of the Data Room is to give oil

companies the opportunity to review the data before committing to licensing of data.

Once the data package has been purchased the Master Licensing Agreement (LA) and

relevant Supplement Agreement governs the use and copying of the data.

FREETOWN DATA ROOM

Emmanshola House, Third Street, Off Regent Road, Hill Station, Freetown.

(9.00 a.m. and 5.00 p.m.) Monday to Thursday and (9.00 a.m. and 3.00 p.m. on

Fridays).

Appointments should be made via email to:

Raymond S. Kargbo. Director General: [email protected]

Mustapha Koroma. Senior Geophysicist: [email protected]

Masa Bah. Senior Petroleum Geologist: [email protected]




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4 FURTHER INFORMATION

For further information about the Sierra Leone Data Room or licensing of Data

please contact:

Mr Raymond S Kargbo Director General

Emmanshola House, Third Street, Off Regent Road, Hill Station,

Freetown, Sierra Leone

[email protected]

Mr Mustapha Koroma

Senior Geophysicist



[email protected]

Mrs Masa Bah

Senior Geologist



[email protected]

Mr Richard Heath

Director

ERCL Ltd, 15 Station Road, Henley on Thames, UK, RG9 1AT

[email protected]

Mr John Clark

Services Manager/ Principal Geophysicist

ERCL Ltd, 15 Station Road, Henley on Thames, UK, RG9 1AT

[email protected]

Or visit

www.pd-sl.com

www.pdsl.gov.sl

www.ercl.com/mutliclient/sierraleone







http://www.pdsl.gov.sl/

http://www.ercl.com/mutliclient/sierraleone

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5 APPENDICES

5.1 Appendix 1 Contents for SLEDA 2017 Release

SLEDA is a joint project between PDSL and ERCL.

The first release is planned for August 2017 and this release will focus on the digital

deliverables which will be in ESRI ArcGIS software.

SLEDA CONTENTS (Release 1)

1. Introduction

2. Overview of SLEDA

2.1 Summary of PDSL Technical Database

2.2 Methodology Used

2.3 SLEDA Outputs and Data Format

2.4 Planned Future SLEDA Releases

3. Summary of Oil & Gas Exploration in Sierra Leone

3.1 Exploration History

3.2 Hydrocarbon Discoveries

3.3 Petroleum Exploration Database

3.4 Previous Licensing Rounds

3.5 Current Approach to Licensing

4. Well summary sheets for all released wells in Sierra Leone. There is an

ongoing program to update all these into a standard format. At present you will get a

mixture of styles.

5. Seismic Survey details. These standalone sheets describe the acquisition,

processing and where applicable re-processing parameters for all released surveys

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5.2 Appendix 2 Details of Released Seismic Data

Mabesi-3D Anadarko Reprocessed PSDM 2009-2010 = 4,150 Square km

Survey Name SL-07B-3D

Type 3D Seismic

Location Offshore

Year 2004

Area 4,150 Sq. Km

Original Client Repsol

Brokered By SLPD/ERCL

Aquired By BGP

Original Processing CGG

Reprocessed GXT

Navigation Written in SEGY - WGS84 UTM28N

Field Data Under request by PDSL

SEGY - Data Type 1 PSDM Time Full Stack - GXT Reprocessing 2010

SEGY - Data Type 2 PSDM Depth Full Stack - GXT Reprocessing 2010

SEGY - Data Type 3 PSDM Depth Angle Stacks (Near, Mid, Far) - GXT Reprocessing 2010

SEGY - Data Type 4 PSDM Time Angle Stacks (Mid, Far) - GXT Reprocessing 2010

SEGY - Data Type 5 -


SURVEY DETAILS

ACQUISITION & PROCESSING

DATA DELIVERABLES

Blue fields = data under request

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Seismic Data-3D: SL-05 Lukoil Reprocessed = 1,500 Square km

Survey Name SL-05 LUKOIL_INVERSION_3D

Type 3D Seismic

Location Offshore

Year 2008

Area 1,500 Sq. Km

Original Client Lukoil


Aquired By BGP

Original Processing CGG

Reprocessed -

-


Field Data Final Pre-Migration Gathers (Tapes)

SEGY - Data Type 1 Pre-Time Migration Angle Stacks (Near, Near-Mid, Mid, Mid-Far, Far)

SEGY - Data Type 2 Inversion results

SEGY - Data Type 3 PSDM Depth Full Stack - To be Requested




DATA DELIVERABLES

SURVEY DETAILS



Note: Rock physics products are available for this survey.

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Seismic Data-3D: SL-3, 4&5 = 4,060 Square km

Survey Name Sierra Leone 3D (Blocks 3, 4 and 5)

Type 3D Seismic

Location Offshore

Year 2008 - 2011

Area 4060 Sq. Km

Original Client -


Aquired By M/V Geo Caribbean (3 4A & 4B) & M/V BGP Pioneer (4 & 5)

Original Processing -

Reprocessed TGS


Field Data Field data with navigation in the trace headers / shot ordered (unedited, 2ms)

SEGY - Data Type 1 Processed Time Migrated Full Stack

SEGY - Data Type 2 Processed RAW Time Migrated Angle Stacks (Nears, Near-Mids, Far-Mids and Fars)

SEGY - Data Type 3 Pre stack time migrated CDP gathers without NMO - 12.5m by 25m (64 fold)

SEGY - Data Type 4 Pre stack time migrated CDP gathers with NMO/Radon - 12.5m by 25m (64 fold)

SEGY - Data Type 5 Raw migration – 12.5m x 12.5m

SEGY - Data Type 6 Migration velocity trace volume, RMS - 4ms SEGY

SEGY - Data Type 7 Migration velocities (hand-picked, ASCII) (1000 x 1000m)

SEGY - Data Type 8 3D stacking velocity trace volume - 4ms SEGY

SEGY - Data Type 9 Stacking velocities (ASCII) (500 x 500m, 48ms)

SEGY - Data Type 10 Gravity

SURVEY DETAILS


DATA DELIVERABLES


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Seismic Data-3D: SL-4&5 = 2,649 Square km

Survey Name Sierra Leone 3D (Blocks 4 and 5)

Type 3D Seismic

Location Offshore

Year 2008 - 2014

Area 2,649 Sq. Km

Original Client -


Aquired By BGP

Original Processing TGS

Reprocessed CGG


Field Data Field data with navigation in the trace headers/ shot ordered (unedited at 2ms)


SEGY - Data Type 2 Processed Time Migrated Angle Stacks (Nears, Mids and Fars)

SEGY - Data Type 3 Pre stack time migrated CDP gathers without NMO - 25m by 25m (60 fold)

SEGY - Data Type 4 Pre stack time migrated CDP gathers with NMO/Radon - 25m by 25m (60 fold)

SEGY - Data Type 5 Raw migration – 25m x 25m

SEGY - Data Type 6 Migration velocities (ASCII) (900 x 900m grid)

SEGY - Data Type 7 Stacking velocities (ASCII) (900 x 900 m grid)

SEGY - Data Type 8 3D stacking velocity trace volume - SEGY

SEGY - Data Type 9 Gravity data

SURVEY DETAILS


DATA DELIVERABLES


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Seismic Data-3D: SL-3, 4&5 Extension = 5,080 Square km

Survey Name Sierra Leone 3D (Blocks 3, 4 and 5 Extension)

Type 3D Seismic

Location Offshore

Year 2008 - 2014

Area 5,080 Sq. Km

Original Client -


Aquired By M/V Geo Caribbean/Polarcus Alima (3 4A & 4B/4A Extension) & M/V BGP Pioneer (4 & 5)

Original Processing -

Reprocessed TGS


Field Data Field data with navigation in the trace headers / shot ordered (unedited, 2ms)


SEGY - Data Type 2 Processed RAW Time Migrated Angle Stacks (Nears, Near-Mids, Far-Mids and Fars)

SEGY - Data Type 3 Pre stack time migrated CDP gathers without NMO - 12.5m by 25m (64 fold)

SEGY - Data Type 4 Pre stack time migrated CDP gathers with NMO/Radon - 12.5m by 25m (64 fold)

SEGY - Data Type 5 Raw migration – 12.5m x 12.5m

SEGY - Data Type 6 Migration velocity trace volume, RMS - 4ms

SEGY - Data Type 7 Migration velocities (hand-picked, ASCII) (1000 x 1000m)

SEGY - Data Type 8 3D stacking velocity trace volume - 4ms

SEGY - Data Type 9 Stacking velocities (ASCII) (500 x 500m, 48ms)

SEGY - Data Type 10 Gravity (not over SL4A Extension)

SURVEY DETAILS


DATA DELIVERABLES


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SL-MEGA-MERGE (FUSION) = 7,126 Square km

Survey Name Sierra Leone Mega Merge (Fusion) 3D

Type 3D Seismic

Location Offshore

Year 2015

Area 7,126 Sq. Km

Original Client -


Aquired By M/V Geo Caribbean (3, 4 & 5) & M/V BGP Pioneer (4 & 5)

Original Processing TGS

Reprocessed TGS


Field Data -

SEGY - Data Type 1 Processed Time Migrated Full Stack (Part 1) - 12.5 x 12.5m

SEGY - Data Type 2 Processed Time Migrated Full Stack (Part 2) - 12.5 x 12.5m

SEGY - Data Type 3 RAW Time Migrated Full Stack (Part 1) - 12.5 x 12.5m

SEGY - Data Type 4 RAW Time Migrated Full Stack (Part 2) - 12.5 x 12.5m



DATA DELIVERABLES

SURVEY DETAILS



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Sierra Leone 2D (Blocks 08A & 08B) Chevron Reprocessed = 3,793 Line km

Survey Name Sierra Leone 2D (Blocks 08A & 08B)

Type 2D Seismic

Location Offshore

Year 2013

Area 3,793 Line kms

Original Client -


Aquired By TGS

Original Processing ION

Reprocessed -


Field Data Request Data

SEGY - Data Type 1 PSTM

SEGY - Data Type 2 RTM PSDM

SEGY - Data Type 3 Time Migrated Angle Stacks (Mids and Fars)

SEGY - Data Type 4 KPSDM



SURVEY DETAILS


DATA DELIVERABLES


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