1. Using an Inflatable Element
Innovative Internal
Casing Patch
Using an Inflatable Element
As Remedial Solution
by Mr Mohamed GABY

2. AGENDA: Saltel Expandable Steel Patch SES Patch Setting Process
Sealing Principle
Features & Benefits
Product Range
Applications
Case Histories

3. 200 ELASTOMERIC SEALING GROOVES PER EXTREMITY
Saltel Expandable Steel Patch
TOP
CENTRAL TUBE
BOTTOM
WELDING
6 ft
TOP
6 ft
ANCHORING PROFILE
The anchoring profile is made with 1ft of drainage channels that ensure the Patch to be anchored after the first expansion
BOTTOM
200 ELASTOMERIC SEALING GROOVES PER EXTREMITY

4. SES Patch Setting Process

5. Sealing Principle
6m-20ft expandable steel patch, with 1.5m-5ft of grooved sealing elements on both extremities, creates more than 200 sealing contact points
5 MPa / 50 bars OVER PRESSURE TO ENERGIZE ELASTOMERIC GROOVES
METAL SPRING BACK
EXPANSION UNTIL CONTACT PRESSURE
50 bar / 700 psi
Over pressure
The sealing profile is designed to compensate the loss of compression lead by the metal spring back effect
Inflexion point = Contact with the casing
Expansion phase
Setting pressure hold during 2 minutes
Release pressure

6. Features & Benefits High performance Seals Expands until contact
Optimal ID
Large RIH clearance
Patch thru patch
Multi diameter sealing
Top down setting
Expansion stress control
Casing and Open Hole
Rig or Rigless operations

7. Standard Patches Product Range
Full Range Standard from 4 in ½ to 13 in 3/8
Internal Differential Pressure supported up to 15K
External Differential Pressure up to 3500 Psi
Steel Thickness : 2mm – 6mm
Standard Setting Temperature up to 150°C/300°F
Patch Through Patch Capabilities
Options
Standard or V0
High temp CSS or SAGD
( up to 335°C / 635°F)
Hostile Environment
Totaly customized Patch

8. Applications Improving Well Productivity
Perforation shut-off (7), screen repair (6), isolating sections of screen between packers, closing ICD’s (8)
Restoring well integrity
Damaged, parted, split, corroded casings (2 & 3), leaking DV tools (1), sealing open frac ports (5)
Curing total losses
In underreamed section, without diameter loss, (4)
High Temperature Applications EOR
CSS and SAGD wells, up to 335°C/635°F (2 & 3)

9. Patches set in the world
Canada
USA
France
Algeria
Romania
Oman
Syria
Gabon
Russia
Angola
DR Congo
Abu Dhabi
Congo
Argentina
Germany
Azerbaijan
2006 – 2009 : R&D, First Field Trials
2010 : Commercial launch
> 600 Patches set worldwide
96% success ratio
Patches set
Project Ongoing

10. Case Histories Gaz Shut-off Campaign of 15 wells 7in Casing 26ppf
Isolate gaz producing formation.
Depth : 1000 meters
Temp : 50° C
Conveyance : Tubing
Result : 148%increase in oil production

11. Case Histories Tubing Leak Repair Gaz producer well
4-1/2in 13.5ppf production tubing
Cover a leaking collar
Depth : 1000 meters
Temp : 55° C
Conveyance : Smart Coiled Tubing
Result : No more pressure build up in the A-annulus

12. Case Histories Water Shut-off Oil Producer 7 in 32ppf Casing
Seal-off water producing zone
Depth : 3000 meters
Temp : 100° C
Conveyance : Drill Pipe
Result : PLT showed BS&W production decrease from 61% to 22%

13. Case Histories Frac-port repair Horizontal Oil Producer 5-1/2in 17ppf
Cover an open frac port to allow frac operation
Depth : 3300 meters
Temp : 90° C
Conveyance : 2-3/8in Tubing
Result : All stages were frac’d at 8400psi (pump rate 44bbl/min)

14. Case Histories Sand Shut-off Off-Shore Horizontal Oil producer
Open hole Gravel pack completion (5in 18ppf)
Seal-off sand producing zones.
Well was choked down and production dropped from 10kbbl/day to 3kbbl/day
Depth : 4000 meters
Temp : 65° C
Conveyance : Smart Coiled Tubing
Result : Sand production dropped drastically which allowed client to flow back the 6kbbl/day

15. Thank you