8 Dynamic Well simulations.pdf

8/10/2019 8 Dynamic Well simulations.pdf

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Transient Well Flow Simulations

OLGA the Dynamic Multiphase Simulator

Dynamic Well Simulation, application areas and benefits usingOLGA for Wells

John SundtSenior Vice President, SPT Group


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EngineeringOperation

EngineeringOperation

FlowAssurance

Integration

TrainingOTS

OnlineMonitoring &Optimization

IntegratedSolutions

Steady StateWorkflow

WellControl

Wells

OLGA application areas and

OLGA


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WellControl

20 years of Well control simulation with OLGA

Well control specific interface for OLGA, (OLGA ABC)

Well Control


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Essential part of emergency response planning

Blowout rate estimation Relief well design Bull heading Dynamic kill parameters

Kill Rate Pump Pressures and capacity

WellControlWell Control


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WellsOLGA for Wells

Well interface to OLGA Workflow and functionality for Dynamic simulation of well scenarios Near Wellbore simulator ROCX


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Subsea and offshore Wells

High cost

Costly to work-over

High reliability required

Subsea wells have lower recovery rates


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Phenomena requiring dynamic modeling


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A well can be a single flow path

Vertical Slanted

UndulatingHorizontal

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but can also be a complicated network

Multi-string Multi-zone

Multi-lateral Smart

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Accurate performance modeling of the flow controlequipment/devices

Flow Control Choke Check valve ESP and PDP Gravitational separator

ESD SCSSV Gas-lift valves ICV and ICD DIACS Sliding sleeves

Slotted liner Sand screen

Controllers

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Inflow performance relationship

Linear and non-linear mass-based IPR Constant Productivity Index Vogel equation

Saturated oil reservoir

Normalized Backpressure Saturated reservoir (oil/gas)

Saturated oil wells

Backpressure equation Gas wells

Forcheimer model Low pressure gas wells

Single Forcheimer model High pressure gas wells

User tabulated IPRs Quasi-dynamic inflow performance

PR, TR, PI, k-h, S, D, n- C, GOR, WC etc areavailable as time series for input

ROCX, Near Wellbore simulator

B o t

t o m

h o

l e f l o w

i n g p r e s s u r e

Q

PI

S

PR

R e s e r v o i r v a r

i a b l e s

Time

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X

Z ( D e p

t h )

0 0.5 1 1.5 2

0

20

40

60

80

100

0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8WaterSaturation


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Some examples


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Unloading Gas Lifted Well


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Well Clean-up / Start-up


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Clean-up to Host

Well head

Host


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197.5

198.0

198.5

199.0

199.5

200.0

W e l

l b o r e

f l o w


( b a r a )

Completion design 1: cemented and perforated casing

Completion design 2: cemented and perforated casing + passive stinger

196.00 250 500 750 1000 1250 1500 1750 2000 2250 2500

Distance from heel (m)

1

1

1

1

1

W e l

l b o r e

f l o w


( b a r a )

Completion Stinger Design


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Production optimization/ Procedures

Annulus: I D=0.216 m

Riser: ID:8,

depth: 120 mPipe : ID=8, length 4.6km

Depth: 2840 m

Tubing : ID=0.1143 m

Gas Lift

Rate Gas Lift


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Modeling wells in OLGA has become easy.example; Dry-tree well geometry

in minutes!


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Gas lift valves and ESPs in OLGA

in seconds!


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In seconds!

Gas lift valves and ESPs in OLGA


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Drilling Hydraulics

Cleanup

Well Testing

Artificial Lift

Gas Well Deliquification

Horizontal & Multilaterals

Well-Pipeline Interaction

Well-Reservoir Interaction

Injection

CO 2 Storage

SAGD

Completion Design

Hydrate

Heavy Oil

Wax

Annulus Pressure Management

Erosion

Corrosion

Equipment Integrity

Temperature

Well Control

Leakage

DTS

Online/Offline Soft Sensing

Water Monitoring

PLT

Well Flow DynamicsWell Integrity

Well Flow Assurance

Well Surveillance

Application areas of transient well flow simulations
http://localhost/var/www/apps/conversion/tmp/scratch_3/Water_monitoring.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Drilling_Hydraulics.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Cleanup.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Well_Testing.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Artificial_Lift.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Gas_Well_Deliquification.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Horizontal_Multilaterals.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Well_Pipeline_Interaction.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Well_Reservoir_Interaction.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Injection.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/CO2_Storage.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/CO2_Storage.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/CO2_Storage.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/SAGD.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Completion_Design.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Hydrate.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Heavy_Oil.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Wax.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Annulus_Pressure_Management.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Erosion.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Corrosion.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Equipment_Integrity.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Temperature.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Well_Control.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Leak_Detection.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/DTS.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Soft_Sensing.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Water_monitoring.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/PLT.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/PLT.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Water_monitoring.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Soft_Sensing.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/DTS.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Leak_Detection.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Well_Control.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Temperature.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Equipment_Integrity.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Corrosion.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Erosion.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Annulus_Pressure_Management.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Wax.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Heavy_Oil.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Hydrate.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Completion_Design.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/SAGD.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/CO2_Storage.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Injection.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Well_Reservoir_Interaction.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Well_Pipeline_Interaction.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Horizontal_Multilaterals.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Gas_Well_Deliquification.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Artificial_Lift.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Well_Testing.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Cleanup.ppthttp://localhost/var/www/apps/conversion/tmp/scratch_3/Drilling_Hydraulics.ppt


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Publications: more than 70 papers published

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N u m

b e r o

f p a p e r s

Year

OLGA-for-Wells papers - yearly statistics (1990~)

General

Control and Optimisation

Validation

Near-Wellbore

Liquid Loading

Flow Assurance

Transient Operation

Sluging

Artificial Lift

Well Testing

Cleanup

Smart Wells

Well Control

Drilling


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Summary of Values

Dynamic simulation has proven value throughout the wells life cycle

Planning & Design Start-up Production optimization / trouble shooting

For Operators

Reduced risk, increased production and reduced down time

For Service Companies

New service offers and value added solutions

For Engineering companies

Extending Flow assurance to include the well and near wellbore Offering further value to your client base using familiar tools


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Thank you for your attention and

be dynamic

Documents

8 Dynamic Well simulations.pdf