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Industry StandardArdyne OperationCustomer Savings

COST EFFECTIVE OPENHOLE CASING RECOVERYCASE STUDY – 2017NOR014

41HOURS SAVED

6322

65%EFFICIENCY GAIN

The TITAN System was deployed on a semi-submersible rig in the North Sea for a slot recovery operation where the operator required the 9 5/8’’ casing to be pulled approximately 50m below the 13 3/8’’ shoe into the openhole.Experience from the field has shown that it has frequently not been possible to recover casing from the openhole using conventional methods.

The TITAN System unifies casing cutting and recovery with a downhole hydraulic power tool, in a single trip operation.The downhole adaptability of the TITAN System ensures and maximises the recoverable casing in challenging circumstances by utilizing the pulling capacity of the hydraulic power tool with added repeatable casing cutting capability.

THE SOLUTION

THE OPERATION

TITAN SYSTEM

4TRIPS SAVED

51

The TITAN™ System delivers a 41 hour time efficiency in open hole casing recovery

FASTER. SIMPLER. BETTER. TITAN SYSTEM CS-10-2017

FRM SPEAR

35%100%

DownHole Power Tool

ALO-Valve

FRM SpearPDM

Casing CutterTaper Mill

RESETTING THE STANDARD FOR OPENHOLE CASING RECOVERY

41 HOURSSAVED BY THE TITAN SYSTEM

- A BOEING 787

TAKES 41 HOURS TO CIRCLE THE GLOBE

The TITAN System is Ardyne’s latest patent pending casing recovery technology

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SINGLE TRIP SEQUENCE - 41 HOURS SAVEDCASE STUDY – 2017NOR014

Breakdown of operational sequence for single trip operation with TITAN System

FASTER. SIMPLER. BETTER. TITAN SYSTEM CS-12-2017

1. Rig pull with 250

tonnes - no go

2. Activate TITAN and

pull 433 tonnes - no go

DownHole Power Tool(DHPT)

ALO-Valve

FRM Spear

PDM

Casing Cutter

Taper Mill

BHA(Bottom Hole Assembly)

1 265mMD

1 321mMD

1 288mMD

1 276mMD

1 265mMD

1 321mMD

1 288mMD

1 265mMD

1 321mMD

1 288mMD

1 265mMD

1 321mMD

1 276mMD

1 288mMD

1 265mMD

1 321mMD

3. Relocate to cut

casing

4. Rig pull with 230

tonnes - no go

5. Activate TITAN and

pull 433 tonnes - no go

6. Relocate to cut

casing

7. Rig pull casing free

with 247 tonnes

8. Recover casing to

surface

9. Recover remaining

pieces

10. Open hole sidetrack

13 3/8’’ Casing

9 5/8’’ Casing

The TITAN System is Ardyne’s latest patent pending casing recovery technology

Complete well breakdown

Long String Recovery Operational time savings for TRIDENT System versus Conventional operation

1 P/U TRIDENT System including EZSV packer and RIH to set depth at 1330m 2 Set EZSV

a. Pull up to install Marine Swivel and land in wellhead at 382m – 4 hours 3 Pull up to cutting depth 1321m and perform cut. Attempt to pull free and circulate.

a. POOH to lay out Marine swivel and install inline spear – 5 hours 4 Pull up to cutting depth 1264m and perform cut. Attempt to pull free and circulate.

a. POOH to lay out Inline Spear and install Marine Swivel – 4 hours 5 Pull casing to surface with TRIDENT System

a. POOH and L/O cutter assy, P/U and M/U Spear assy and RIH – 4 hours

Short String Recovery Operational time savings for TITAN System versus standard DHPT operational

1 RIH with TITAN System to pull free from 1264 to 1321m – No go 2 Release Spear and perform new cut at 1288m

a. POOH with DHPT and RIH with cutter and Marine Swivel to cut at 1288m– 14 hours 3 Attempt to pull free with DHPT, 9 5/8’’ fish from 1264 to 1288m – Nogo

a. POOH with Cutter and Marine Swivel and RIH with DHPT – No go – 9 hours 4 Release Spear and perform new cut at 1276m and pull free csg from 1264 to 1276m

a. POOH with DHPT and RIH with Cutter and Marine Swivel to cut at 1276m – 9 hours b. Pooh with Cutter and Marine Swivel and RIH with DHPT pull free from 1264 to 1276m

– 9 hours 5 RIH with TITAN and pull free from 1276 to 1288m

a. RIH with DHPT to pull free from 1276 to 1288m 6 RIH with TITAN, attempt to pull free from 1288 to 1321m – No go, perform new cut at

1300m a. RIH with DHPT, attempt to pull – No go, POOH, L/O DHPT and RIH Cutter and swivel

to cut at 1300m -9 hours 7 Unable to pull free with DHPT, next decision was to try the Washover shoe to wash over

the 9 5/8’’ casing which was successful in 2 steps.

Approximate savings for complete well:

TRIDENT vs standard equipment TITAN vs standard DHPT

17 hours 50 hours