1. 1

2. Good afternoon Ladies and Gentlemen,
Those who have been to this conference in the last two year do not need to worry of
being teased by Eggs and video clips from Jaws, this year, a much lighter note…
2

3. I indeed like a joke…and photo shop, however I am very serious with what I would like to
present this year…
12 wells is a Hugh suspended well P&A campaign and the savings enormous if compared
to the rig‐based solution one‐off project.
This amount of wells cannot be reached without a strong collaboration between all the
joining parties and this is what I aim to talk about:
Collaboration, forward thinking and early planning.
3

4. 4

5. Allow me now to briefly to introduce OIS and the Acteon Group to then pass to the topic
slides.
Acteon is a cluster of diverse offshore companies, each of them a leader in their field.
23 companies are today part of the group that this year will exceed £0.5Bln turnover and
employs over 2800 people as staff.
With a global footprint and the mission to deliver and lead the subsea market, Acteon
can offer the widest range of specialist services available to the industry.
5

6. I have worked in many parts of the world and in diverse industries and the starting point
of the business is always the same:
Revenue projections for the budgeting purposes and then a well prepared Master
Production Schedule.
What we often lack is a MPS upon which we build our project plan on that come from
the plans of multiple operators and ideally spanning multiple seasons.
The more Operators willing to share their needs with the supply chain, the more
opportunities the supply chain can work to match requirements and build a tailored
solution that will minimize costs.
Many time I see late planning and late decisions taken that all end up with higher costs
and increased inefficiencies.
6

7. 7

8. I am sure most of you are aware of the categorization of wells, however allow me to
briefly summarise the area of Well P&A where the SWAT Tool can be utilised:
The CAT2 wells are wells that have already been suspended and the deep set and
intermediate plugs have been positioned by a rig and need the two environmental plugs
to be set.
The CAT 1 wells require severance operations only.
8

9. A traditional CAT 2 campaign will be structured in two separate phases, Well intervention
(setting the environmental plugs) and Well severance (well head removal).
The first phase sees the Suspended Well Abandonment Tool as main actor.
The SWAT tool is a modular integrated system deployed from a Light weight construction
vessel with no divers required and is operated from surface via an umbilical, allowing the
system to be utilised in harsh weather conditions.
SWAT is always deployed with a 100% redundancy and full set of spares in order to
guarantee a successful offshore operation.
9

10. The operations start with the removal of the Trash cap, inspection and drifting of the
well and the positioning of the guide cone to facilitate the insertion of the SWAT tool.
10

11. The perforating guns and the SWAT tool assembly are then deployed into the well and
landed onto the 9” 5/8 casing hanger.
11

12. Lower and upper packers are then inflated to seal the bore and a pressure test is
between the packers is performed to assess the integrity of the seals.
12

13. A further pressure test is performed below the lower packer to verify the integrity of the
casing and the equipment.
The lower 3‐3/8 inch guns are then fired to perforate the 9 5/8 casing.
13

14. Again a FIT to ascertain the integrity of the 13 3/8” shoe is performed followed by firing
the upper 2 3/8” guns to perforate the 9 5/8” casing thus creating a new circulation path
in the A annulus.
14

15. Path is circulated and cleaned followed by cement job into A annulus via a reversed
circulation (bore  annuli).
15

16. Once the cement is set and the tests have positive outcome, the lower 5 ½” guns are
fired to breach the casing, the cement and the outer 13 3/8 casing.
16

17. A FIT is performed followed by the upper 3 – 3/8” guns fired to perforate the 9 5/8 and
13‐3/8 casing
17

18. Circulate path bore and B annulus to clean and follow with 2nd stage of the cement job
by conventionally into B annulus and bore.
18

19. Lower guns are now released and the final pressure test performed on the new plug.
19

20. This first phase has mobilisation costs that are Lump sum and that benefit the cost
sharing in case of a multi operator campaign.
20

21. The second phase will see the water jet abrasive system as main actor.
The SABRE AWJC tool is a cold cutting tool able to sever multiple casings internally.
The AWJ cutting is a proven and efficient technology, environmentally friendly that does
not require any preliminary dredging operations and is operated diver‐less.
21

22. The second phase is the severance phase that starts once the well has been safely
plugged and the well head needs to be severed 10ft under the mudline and recovered
on‐board.
Again the lump‐sum costs are shared and the cost to each operator reduced
dramatically.
The use of a lightweight vessel allows for flexibility in scheduling should, for example,
the data recorded during the ‘as found’ survey differ from the data initially considered
during the planning phase. In such an instance, OIS could elect to shift operations to a
different well site whilst an alternative solution is engineered, thus feasibly limiting
delays and mitigating against the unexpected.
22

23. As anticipated, early engagement and planning is crucial for a successful and economic
campaign, as well as a clear understanding of the Well engineering.
In order to have the opportunity to be part o a M.O. campaign, the relevant permits
need to be submitted to the authorities in time and the process is time consuming and
lengthy.
You can see that:
OPEP 2 months
PON 5 3 weeks
PON 15f 4 weeks
Other several weeks
Therefore an early engagement is vital to jump on an opportunity and enjoy the savings.
For these requirements obviously OIS can eventually assist with our Wellintel.
23

24. 25

25. A contractual model where the savings are enjoyed by the Operators and a small part
shared with the supply chain is a viable path for a win‐win solution.
There is obviously always an issue with the starting of the process: it is tremendously
hard work to have the first Operator to sign up to a campaign with little or small visibility
of who else will join the campaign.
It would be much easier if the Operators could collaborate and offer a plan that spanned
seasons and geographical areas upon which the supply chain could work and define
resources and schedules to offer an even better deal.
To conclude: a vessel based solution for suspended well P&A operations that includes a
large number of wells achieved by sharing a multiple operator campaign is definitely an
ideal path to consider in order to reduce the impact of the costs for decommissioning
these assets.
Although true that a number of operators collaborate on major or minor issues, it has
not yet happened that operators meet collectively, analyse their plans together and then
pick up the phone to contact the supply chain informing their need to perform a
campaign that will comprise multiple Operators.
26

26. 27