This document is confidential and is intended solely for the use and information of the client to whom it is addressed.

Presented by: Date:

Subsea Riser less P&A Solutions Gary Tait, Senior P & A Advisor –Global Subsea Operations,

June 2013

0

P&A From Vessels

Well Stroker

• Most times Crown plugs are retrieved using Slick Line

• Most common reason for not being able to pull the Crown

plug is debris / fill on top of the plug.

• The Crown plug typically has a GS profile.

Well Stroker General Description

• The Well Stroker is capable of applying Axial force

downhole by the use of a bi-directional hydraulic ram. The

Stroker can be fitted with various shifting or pulling tools

for Mechanical services solutions.

Types of jobs

• Pulling crown plugs

• Opening/Closing valves

• Opening/Closing sliding sleeves

• Retrieving/Setting gas lift valves

• Setting straddle packers

• Fishing operations

GS Pulling tool

Well Stroker

Crown Plugs

Pulling Crown Plug

Removing debris from top of Crown plug

Well Cleaner® PST (Power suction tool)

Tool body OD 2 1/8” to 5 1/2”

Length (with 2 bailer sections) 21 ft*

Weight in air 220 lbs*

Completion ID >2.2“

Debris volume in 3.5” set up 7 liters/section

Max. no. of bailer sections 6

• Varied variety of options now available to client to tackle multiple types of debris

• Ability to change the bottom nose configuration to suit i.e. Flow

through GS pulling tool. • Both Hi Flow and Hi Pressure options available • Complete Suite of Filters taken to well site

Flow Through GS Pulling tool

Well Cleaner PST (Power Suction Tool)

Well Miller

• Enabling operators to mill out and remove valves, plugs, sand, debris, scale and other downhole barriers on wireline

5

• Provide operators with the possibility to perform heavy duty well interventions with a light touch

• Lower costs compared to traditional heavy intervention work

Removing obstructions

6

Well Miller, stuck ball valve

7

Well Miller, reverse circulation bit

8

Hydraulic Puncher, none explosive

Currently testing range of steal, hardness, thickness and pipe sizes

• Punch force 8 ton

• Diameter of hole in casing 8 mm.

Circulation holes

Plug Setting Tool, none explosive

General Description

• Electro Hydraulic operational setting tool for plugs, packers and straddle systems

• The tool requires no form of explosives or pre-charge of pressure and is not dependent on well pressure for operation

• The WST can be used to set any plug run on Baker #20 – E4 setting tool

Technical Description

• Make up length: 4,2 m

• Maximum OD: 3 7/8”

• Maximum stroke length: 14”

• Maximum stroke force: 55.000 lbf

• Maximum operational temp: 135° C

• Maximum well pressure: 10.000 psi

• Setting sleeve connection: Running tool/plug connection:

- *The stroke force can be doubled to 110.000 lbf by adding one piston stage to the tool

- The increased tool length will be 60 cm

Plug setting

10

Welltec Cutter, none explosive

• The Welltec Cutter is a tool that enables efficient, safe drill pipe and casing recovery operations without the need for explosives. It is self-centralizing and removes pipe incrementally so that no shavings are generated and a smooth, polished surface remains after the cut.

• The Welltec Cutter eliminates the need for explosives required by most of the industry

alternatives. Explosives can pose an operational risk, especially when simultaneous operations are being conducted. Transfer of explosives may also cause additional logistical requirements and significant operational delays.

Cutter head Cutter placement

Cut examples Very fine debris

Cut tubing/casing

Welltec Cutter

Well Cutter

4.5” – 5.5” Drillpipe, casing or tubing

Well Stroker

Well Stroker General Description

• The Well Stroker is capable of applying Axial force

downhole by the use of a bi-directional hydraulic ram. The

Stroker can be fitted with a Blind Box deployed dowbhole to

tag cement. When cement top is tagged the stroker can be

anchored and a downward force of ~10 Tons can be applied

to the top of the cement plug

Verify Cement Plugs

13

Isolate Zones/Repair casing/tubing

Welltec® \ Enventure Partnership

14

Isolate Zones/Repair casing/tubing

Wireline Patch

P&A from Vessel -What Can Welltec® Do?

Reservoir

Logging, inspection and verification of tubing and annulus cement and potential leaks

Set plug with Welltec® technology

Punch hole with Welltec® technology

Use Well Stroker® to verify cement Integrity (10 ton downforce)

Use Welltec® cutter tool in conjunction with the DH snubbing jack to retrieve TH.

30 20 10 5 0

Gain access to wellbore, Pull crown plug cleaning services to remove debris, sand fill, swarf, metal or rubber, etc.

Down Hole Services for P&A

• Well Stroker to pull crown plug

• PST to remove debris on top of crown plug, sand fill, swarf, metal or rubber, etc.

• Milling services to remove obstructions (scales, stuck valves, nipple profiles)

• Cleaning services to remove debris, sand fill, swarf, metal or rubber, etc. to obtain access

for other operations

• Well Cutter to cut tubing/casing

• Hydraulic puncher (none explosive) to punch circulation holes

• Well Tractor for conveyance in highly deviated wells

• Set Plugs with Plug Setting Stroker without using explosives

• Well Stroker to verify top of cement plug integrity (10-16 ton force)

• Casing/Tubing patches to isolate zones/repair damaged or corroded casing/tubing

• Logging, inspection and verification of annulus cement, pipe integrity and potential leaks –

in conjunction with 3rd party

Questions

Thank you for your time