Enhanced Oil Recovery On Troll Field By

Implementing Autonomous Inflow Control Device

Based on SPE 180037. Martin Halvorsen et al. Bergen 2016

Slide 2

Troll oil field –

• Thin oil column

• Huge gas cap

• Subsea wells

• Long horizontal wells

• Multilateral wells

• Inflow control devices

• Downhole monitoring and

control

• Gas coning/contact movement

SPE 180037 • Enhanced Oil Recovery On Troll By Implementing AICD • Martin Halvorsen

Introduction

SPE 180037 • Enhanced Oil Recovery On Troll By Implementing AICD • Martin HalvorsenSlide 3

Well placement

Slide 4

Control:

• Inflow control devices

(AICD - Autonomous Inflow Control Device)

• Branch control

Monitoring

• P/T gauges

Zone isolation

• Swellable packers

SPE 180037 • Enhanced Oil Recovery On Troll By Implementing AICD • Martin Halvorsen

Completion design

Slide 5

The ‘levitating disc’ AICD

Fmom Flift Fdrag

Fmom + Flift + Fdrag = 0

Oil

Gas

Oil

Water

AICD function from experimental tests

Slide 7

Nozzle

Disk

Body

SPE 180037 • Enhanced Oil Recovery On Troll By Implementing AICD • Martin Halvorsen

Technology advancements

AICD Implementation on Troll

0

5

10

15

20

25

30

2008 2009 2010 2011 2012 2013 2014 2015 2016

Nu

mb

er o

f La

tera

lsAICD Implementation at Troll

Original Design Improved Design

Slide 9 SPE 180037 • Enhanced Oil Recovery On Troll By Implementing AICD • Martin Halvorsen

Reservoir simulations

Slide 10

10 mths (SPE159634)

SPE 180037 • Enhanced Oil Recovery On Troll By Implementing AICD • Martin Halvorsen

Strong results

2 years

• The AICD technology has been implemented successfully at the Troll Oil Field

(75 laterals)

Success Criteria

− no associated problems during completion, startup or production,

− no negative effect on production

− a favourable GOR development and cumulative oil production.

• The AICD wells are producing better than expected and have contributed to

an increased oil production at Troll.

Slide 11 SPE 180037 • Enhanced Oil Recovery On Troll By Implementing AICD • Martin Halvorsen

Conclusion

Any Questions?

Tendeka combines field proven production technologies to measurably improve how today’s completions perform.

From sand-prone formations to shale gas plays, we deliver results across your reservoir.