Repsol Sinopec Resources UK

Decommissioning in Practice – Getting the Job Done

Colin Hopkins – Project Manager

1

Technology Integration + Innovative Thinking = Optimised Post-CoP Management

Repsol Sinopec Resources UK

RSRUK has one of the largest decommissioning portfolio of assets in the UKCS

Asset Summary

8 No. in Operation

4 No. in Late Life / Decommissioning

2 No. in NNA Mode of Operation

CoP 2017

CoP 2015

CoP 2016

CoP 2018

FULMAR PUMPING STATION

Late Life / Decommissioning Assets

2

Assets in NNA Mode of Operation

Repsol Sinopec Resources UK

Value Creation

3

Creative Out of the Box Thinking

Challenging the Norm / Changing the mindset

Leveraging the right Technology / Innovation

Leveraging People knowledge / Experience

Robust Project Management & Delivery

Supply Chain Collaboration / Contracting Strategies

Select / Define Phase: Front end loading

Leveraging Value through Operator Collaboration

Overall Business Value Creation

Repsol Sinopec Resources UK

Not Normally Attended (NNA)

4

Beatrice Field (Alpha, Bravo, Charlie & WTG)

Beatrice Alpha in Warm Suspension; NNA

Alpha Mech’ Plugged, Bravo / Charlie Decom

Manned during Spring / Summer Seasons

Non-platform based

100% Renewable (Wind / Solar)

Via Nigg / Repsol Office

Vessel

87% Reduction

Saltire Platform

Platform in Warm Suspension; NNA

Saltire Wells Mechanically Plugged

3 / 3 Rotation; Unmanned every three weeks

Platform Based

Tethered by Piper Bravo

Via Piper Bravo / Repsol Offices

Helicopter

79% Reduction

Platform:

Operating Mode:

Wells Status:

Manning Status:

Well Decommissioning Strategy:

Primary Power Generation:

Remote Monitoring:

Primary Access:

Post CoP Savings Realised:

Two Projects, two different Solutions to Cost Reduction

Repsol Sinopec Resources UK

Beatrice Alpha: Technology and Integration

5

Wireless Well Monitoring

Navigation Aids

Weather MonitoringSolar Power Generation / AIS

Guides Wave RadarPower Gen Re-charge

Beatrice Alpha –Production Platform (AP)

Beatrice Alpha –Drilling Platform (AD)

Accommodation Module

Boat Landing Platform

Security Systems

Navigation Aids / AIS

Wind Power Generation

Derrick Removal

Repsol Sinopec Resources UK

Beatrice Alpha and Saltire: Remote Monitoring

6

Repsol Sinopec Resources UK

Roadmap of Savings – Post-CoP Value Creation

7

Saltire & Beatrice roadmap of savings from warm stack to NNA mode

100%

-52%

-87% -87%

0

5

10

15

20

25

30

35

40

2014 202020172015 2016 2018 2019

-52% -87%

Post-CoP Running Cost actuals (%)

Post-CoP Running Cost forecast (%)

Actuals – Warm stack Forecast – NNA mode

Beatrice Post-CoP Running Cost reduction glide path

100%

-60%

-79% -79%

0

2

4

6

8

10

12

14

16

18

20

22

24

26

20182014 20202015 2016 2017 2019

-60% -79%

Post-CoP Running Cost actuals (%)

Post-CoP Running Cost forecast (%)

Actuals – Warm stack

Saltire Post-CoP Running Costsreduction glide path

NNA modifications

Installed in 2018

NNA modifications

Installed in 2018

Formal CoPapproved

November 2016

Forecast – NNA mode

-60% OGUK Guidelines-60% OGUK Guidelines

Saltire Beatrice

Repsol Sinopec Resources UK

Roadmap of Savings – Post-CoP Value Creation

8

Saltire & Beatrice roadmap of savings from warm stack to NNA mode

‣ Optimize management of maintenance and integrity fit for Post CoP asset purpose allow massive reduction on safety critical and overall backlog

‣ Improved risk profile of assets by reducing personnel exposure by converting the platforms to Normally Not Attended mode of operations

‣ Using Enabling Technologies and Digital Solutions to enhance operations management of Post CoP assets

2015 2016 2017 2018 2019

(ho

urs

)

Post CoP Assets Maintenance and Integrity Evolution Enacted NNA

mode on both

Beatrice and

Saltire

7383

66 62

12.5

2015 2016 2017 2018 2019

Post CoP Assets POB Evolution

Repsol Sinopec Resources UK

Conclusions

9

‣ Innovative Thinking

‣ Technology Integration

‣ Optimised Post-CoP Management

‣ Getting the job done