Slickline realtime technology creating new options for reducing

offshore footprint on remedial operations.

Clement Laplane, Schlumberger

Gilles LeBlanc, Total

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Content

Introducing DSL

Telemetry principle

DSL Platform

Reason for selecting DSL

Scope and Toolstring Selected

Results and Lesson learned

DSL advantage summary

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Conventionnal Slickline

� Benefits— Small footprint, mechanical integrity, logistical

simplicity, operational efficiency, cost effectiveness.

� Limitations— Downhole tool capability / activation, Depth control,

Memory based

Digital Slickline

� Real time telemetry— Access to wellbore information & send command from

Surface.

— Depth Control / Activation of Advanced tool

� Without compromising— Operational efficiency (minor set up modification )

— Functionality (Jarring, speed, Sealing)

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Introducing real time Slickline

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Mechanical integrity of coated cable is not

compromising operational efficiency and

functionality:

- Std Sealing - Running speed / jarring capability

/ safe operation / environment.

- Low surface voltage - Does not need Zone II

pressurized equipment

Creating operational constrain and limitation;

– Grease injection - affecting running

speed / Jar capability. Logistic, rig up

height, environment (leak, contamination)

– Risk of stranded wire/ bird cage requiring

complex fishing.

– Heavy wire (logistic)

– High Voltage - Additional pressurized

cabin

Telemetry Principle and advantages

Multi-Conductor CableMulti Layer concept

Digital Slickline CableCoated cable concept

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Using tubing / insulated cable for telemetry

and downhole batteryfor power

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DIGITAL SLICKLINE CORE TOOLS

• Cable head

• Basic Measurement Cartridge

– shock / tension / deviation / movement

• Depth Correlation Cartridge (GR/CCL)

DIGITAL SLICKLINE SURFACE EQUIPMENT

• Standard winch / drum / pulleys / stuffing box

• Surface Transceiver and PC DIGITAL SLICKLINE CABLE

• Std 5R60 Sandvik cable

• 1870 lbs (108)

• 2500 lbs (125)

• Polymer coated

• Standard SLK compatible

Real time Slickline Set up

01

01

11

01

00

01

…0

10

1

Telemetry – Up/Down

Battery – Power complete string

Record sensor informationDHTE/Shock/Deviation

5

X'over

to

5/8” SR

Mechanical

Slickline

Tools

Centraliz

er

Flex

Joint

Extende

d

Battery

Digital

Pressure

Gauge

Digital JarControlled

Release

Device

Sinker

Bar

Surface

Controlled

Trigger

Through

Tubing

Gun

Pipe

Recovery

Devices &

Cutters

Fluid

Sampler

In-Line Spinner

Caliper X-Y

Fullbore

Spinner

Gradio

Capacitance

OPTIONAL ACCESSORIES OPTIONAL TOOLS

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Explosive

setting

tool

Electro-

Hydraulic

activated

Setting tool

Remedial MeasurementMechanical

GHOST/Deft

Enerjet

Power Spiral

Pivot Gun

PURE Gun

HSD Gun

Casing Gun

HEGS Gun

HVO Gun

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K5-D3: Reason for Choosing DSL

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* Naturally Occurring Radioactive Material

Overall situation

Southern North Sea, Dutch Sector, Operated by Total

Platform crane weight limitation < 5tons

Limited deck space (simultaneous operations)

Unmanned Platform

Need for accuracy while perforating

Well NORM* classified

Weather condition – flight limitation

Conventional perforating option would have been :

– SLK (Dummy and protection sleeve) Electric line for Perforation

– SLK with Efire with possible extra correlation runs

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K5-D3: Operation Program and Toolstring

Well condition

– BHT 125°C, BHP 207 bar, Gas well, 2% CO2, No H2S, dev 54Deg, Perforation depth: 4827m.

Charge used

– 2in HSD Power Jet Omega, D-TrigII (with Secure2 detonator)

– Gun length 6m Max / run due to deck space limitation (Surface logistics)

7 perforations runs

– Set / retrieve protection sleeve every day

– Dummy Run 4858m

– Punch Zone 1 - 4827m (1 Runs)

– Perforate Zone 1 - 4827m (2 runs – 9m)

– Perforate Zone 2 - 4814m (4 runs - 20m)

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Rope Socket

Telemetry

Shock, DHTE, Angle

Correlation cartridge

GR, CCL

Pressure temp

Trigger

Secure II

Firing head

Safety fuse

Gun

Zone 1&220°Deg

Water Level2100m

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Logistics on job

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Footprint Winch + PCE Rack and workshop container

Gun basket and explosive container

Personnel on Board- 2 Op + 1 DSL Eng + 1 Explosive Eng*

- * Extra engineer for DSL engineer break out

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Verified operation

10

Negative

Acceleration > 100 g

Head tension

136 to 170 lbs

Trigger Status

Current sent to Deto

Correlation pass

Shooting pass (abort)

Shooting pass (Final)

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K5-D3: Job Results

Job results:

Job successful – perforation on Depth

No NORM residue on cable.

Positive indication from surface

Highlights:

All perforation (29m) within 0.15m accuracy.

12 m / 300 lbs T/String compatible with 0.125” SWL.

2 run per days Running speed up > 250 m/min

Robust and reliable telemetry @ 4827m (15,836ft)

Operation completed with only SLK (DSL) no E-Line required.

Learnings:

Mis-run due to swollen boot due to CO2 – Changing material

Battery disconnection due to shock – Re log perf interval.

- Increasing spring contactor

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Performance review – Advantage and benefit

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Cost Time Function HSE

– Less People and Equipment on well site

Logistic / handling / Pressure / lifting / rig up-down / flight /

supply boat / Bed space

X X X

– Access to remote location

Deck space / Crane limitationX X X X

– Sealing Capability

Running speed / Jarring capability / Environment friendly/

NORM* Suitable

X X X X

* Naturally Occurring Radioactive Material

Fatality, LTI, RWDC

MTC ,

Material Productivity Loss

Pollution/Spill

Occupational Illness

Near Miss

First Aid Case

Security 0

Fire and Explosion 0

Vehicle Incident

HIPO

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Conclusion

Digital slickline provide

� Depth Correlation with Wireline Accuracy

� Real time Activation & Perforation

with inherent benefits of SLK

Small footprint, Light equipment, Jarring capability

No grease injection (NO NORM)

Reduced crew, Quick rig up cost effective …

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Thanks for your Attention !