Marismas project

The Marismas project is a continuation of the 30 years of activity that we have been carrying out in the Guadalquivir Valley area. It consists of removing the existing additional gas reserves and once the gas has been depleted, the site is used again as a storage area - the function it has had for millions of years.

Sites like the Marismas Occidental are the safest storage areas in existence, as they have contained hydrocarbon for millions of years.

Project phases

1 Extractionof the additional natural gas reserves remaining on the site, 1,000 metres underground.

2The stored gas will be injected from the Enagás network and managed based on the needs of the Spanish system.

Projects

1Saladillo

2 Marismas Occidental

Drilling of two wells: Marismas 3-NE and Rincón 2
Construction of two gas pipelines:
One between the Marismas 3 and Rincón 2 sites and another of connection with the F-50.1 measurement station within the Marismas 03 site.

3 Marismas Oriental

4 Aznalcázar

Current status of the Marismas Occidental Project

Urgent occupation process	Status
Prior Activity land occupation 7/7/16 (signed by all owners)	Concluded
Official notifications start date of works	Concluded

Communications and obligations of the UEA	Status
Contact the Huelva Environmental Delegation	Concluded

Administrative Authorisation Requirements	Status
Constitution sureties, guarantees, insurance, rate	Concluded
Regular reports with MINETUR and Delegate	Concluded

Communication estimated start of works	Status
Estimated start of works	Concluded
Notification of end of works on the gas pipeline.	Concluded

Substitution of two existing gas pipelines

Rincón-M3 : 4.8 km. Will change to 12” (currently 6”)

M3-F05.1 : 0.3 km (inside the M3 site). Will change to 12” (currently 6”)

Periods: As planned.

Contracted: Management, supervision of works (including PVA and archaeology) and main contractor. Start date: 22 August 2016.

List of contractors on the project

Works management:

Construction management and supervision: OMICRON-AMEPRO
Safety coordination: OMICRON-AMEPRO
Archaeological monitoring: NAOS
Environmental monitoring: APPLUS

Main contractor: EMOI, S.A.

Progress at 31 January 2017	% Completed
Redesign	100
Path opening	100
Trench opening	100
Distribution	100
Welding	100
Lining and trenching	100
Filling and capping	100
Refunds	100
Tests	100

The mechanical and civil works were concluded on 29 December with a positive result for the hydraulic tests on the project’s gas pipelines.

Environmental monitoring

No deviations occurred.

Archaeological supervision

No incidents have been recorded.

Start of works

1. Scheduled: September 2016
2. Will coincide with the implementation of the Environmental Control Networks: Piezometers, milestones and seismographs with the drilling of initial wells

Activities scheduled for 2016

1. Pre-well drilling
2. Installation of elements for hydrological, seismic and subsidence monitoring.

Progress at 31 January 2017

Drilling of piezometers in Marismas. Protective manhole put in place.

Pre-well drilling in Marismas. Sealing cap put in place.

Geo-technical study. Geo-technical survey and super-heavy dynamic penetrometer

Two working areas at Marismas 3 site restored.

Drilling of piezometers in Rincón.

Pre-well drilling in Rincón. Sealing cap put in place.

Working area at the Rincón site restored.

Implementation of the seismic monitoring network.

No works activity since December 2017.

Environmental Monitoring

No incidents, anomalies or non-compliances have been recorded to date.

2 new separation units in RI and M3.

1 new dehydration unit in RI.

2 new compression units (+2 existing ones) and a noise control system.

Verification/substitution of ancillary systems.

Updating/modification of sites (mechanical, instrumentation & electricity).

Periods:

Detailed engineering work started and validation of basic engineering.

No scheduled work since 2016.