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This document is confidential and is intended solely forthe use and information of the client to whom it is addressed.
Presented by:
Date:
Subsea Riser less P&A SolutionsGary Tait, Senior P & A Advisor Global Subsea Operations,
June 2013
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P&A From Vessels
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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
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Removing debris from top of Crown plug
Well Cleaner PST (Power suction tool)
Tool body OD 2 1/8to 5 1/2
Length (with 2 bailer sections) 21 ft*
Weight in air 220 lbs*Completion ID >2.2
Debris volume in 3.5set up 7 liters/section
Max. no. of bailer sections 6
Varied variety of options now available to client to tackle multiple typesof debris
Ability to change the bottom nose configuration to suit i.e. Flowthrough GS pulling tool.
Both Hi Flow and Hi Pressure options available
Complete Suite of Filters taken to well site
Flow Through GS Pulling tool
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Well Cleaner PST (Power Suction Tool)
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Well Miller
Enabling operators to mill out and
remove valves, plugs, sand,debris, scale and other downholebarriers on wireline
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Provide operators with the possibility to perform heavy duty wellinterventions with a light touch
Lower costs compared to traditional heavy intervention work
Removing obstructions
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Well Miller, stuck ball valve
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Well Miller, reverse circulation bit
Ci l i h l
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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
Pl tti
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Plug Setting Tool, none explosive
General Description
Electro Hydraulic operational setting tool for plugs, packers and straddlesystems
The tool requires no form of explosives or pre-charge of pressure and isnot 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: 135C
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 tothe tool
- The increased tool length will be 60 cm
Plug setting
C t t bi / i
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Welltec Cutter, none explosive
The Welltec Cutter is a tool that enables efficient, safe drill pipe and casing recovery operationswithout 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 industryalternatives. Explosives can pose an operational risk, especially when simultaneous operationsare being conducted. Transfer of explosives may also cause additional logistical requirementsand significant operational delays.
Cutter head Cutter placement
Cut examples Very fine debris
Cut tubing/casing
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Welltec Cutter
Well Cutter
4.5 5.5 Drillpipe, casing or tubing
if C l
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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
Isolate Zones/Repair casing/tubing
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Isolate Zones/Repair casing/tubing
Welltec\ Enventure Partnership
Isolate Zones/Repair casing/tubing
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14
Isolate Zones/Repair casing/tubing
Wireline Patch
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P&A from Vessel -What Can WelltecDo?
Reservoir
Logging, inspection and verification of tubing andannulus cement and potential leaks
Set plug with Welltectechnology
Punch hole with Welltectechnology
Use Well Strokerto verify cementIntegrity (10 ton downforce)
Use Wellteccutter tool in conjunction with the DHsnubbing jack to retrieve TH.
30201050
Gain access to wellbore, Pull crown plug cleaning services toremove debris, sand fill, swarf, metal or rubber, etc.
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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 3rdparty
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Questions
Thank you for your time