7 - OLGA for Wells

7/28/2019 7 - OLGA for Wells

1/14

Updates of the latest developments

in OLGA-for-Wells applications

Bin Hu


2/14

Main contents

OLGA-for-Wells Round Table II

New applications

Status of developments


3/14

OLGA-for-Wells: Round Table II

Attracted 40 participants from 20 organizations

20 technical presentations on well flow simulations were

made

2 break-out sessions were held on

Improvement and modeling needs

OLGA potentials in well flow simulations
http://localhost/var/www/apps/conversion/tmp/scratch_3/O4W-RoundTable-2009.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_3/O4W-RoundTable-2009.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Transient-Well-Flow-Simulations-screenspread.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Transient-Well-Flow-Simulations-screenspread.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_3/O4W-RoundTable-2009.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_3/O4W-RoundTable-2009.pdf


4/14

Drilling Hydraulics

Cleanup

Well Testing

Artificial Lift

Gas Well Deliquification

Horizontal & Multilaterals

Well-Pipeline Interaction

Well-Reservoir Interaction

Injection

CO2 Storage

SAGD

Completion Design

Hydrate

Heavy Oil

Wax

Annulus Pressure Management

Erosion

Corrosion

Equipment Integrity

Temperature

Well Control

Leak Detection

DTS

Online/Offline Soft Sensing

Water Monitoring

PLT

Well Flow DynamicsWell Integrity

Well Flow Assurance

Well Surveillance

Application areasof transient well flow simulations
http://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


5/14

Publications: more than 60 papers published

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

0

1

2

3

4

5

6

7

8

9

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11

12

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

Year

Numberofpaper

s

General

Control andOptimisation

Validation

Near-Wellbore

Liquid Loading

Flow Assurance

Transient Operation

Sluging

Artificial Lift

Well Testing

Cleanup

Smart Wells

Well Control

Drilling
http://localhost/var/www/apps/conversion/tmp/scratch_3/OLGA-for-Wells-Papers.xlshttp://localhost/var/www/apps/conversion/tmp/scratch_3/OLGA-for-Wells-Papers.xls


6/14

New applications:Fluid displacement with coiled tubing (done by SPT London)

Use the drilling bit and

moving grid concept to build

the model

Injection while moving

To diagnose the failure of

fluid displacement operationby coiled tubing

Gas injection rate

Gas injection location

Suggest the optimized

operation procedure


7/14

New applications:

Downhole virtual metering for decovolution technique

(done by SPT Perth)Upstream P-T Separator P-T

Diesel Surface Choke

Test Manifold

Completion Mud

Upper Gauge

Bottomhole P-T measurements

Packer

T es te r Va lv e D ow nhol e Chok e ef fect s

Opening - Closing Test Valve

Middle Gauge


Gauge P correction

P=gh

in-situ density Flowing bottomhole P-T

Formation Top

Datum

Formation Bottom

Lower Gauge Initial Reservoir P-T


Rathole

Pg Tg

Pwh

Twg

Ps Ts

Pr TrPwf

Twf

What we know from measurement

Surface flow rate

Pressure & Temperature

What we dont know, but have to know

Pressure & Flow Rate at the sandface

How to know it?

Use this pressure signal as the outlet

boundary condition in the model

Tune the quasi-dynamic IPR

to match the other

pressure measurements


8/14

New applications:

Blow-out rate estimation (OLGA-ROCX, done by SPT Houston)

Blow-out is a transient

process for both wellbore

and reservoir.

The near-wellbore dynamics

can have a big impact on the

blow-out rate estimation Using OLGA-ROCX reduces

the uncertainty induced by

conservative PI


9/14

New applications:Intermittent gas-production (OLGA-ROCX, done by SPT Oslo)


10/14

Development ROCX JIP

A two-year program started from 2009

Sponsored by Statoil and Total

Main goals:

To develop ROCX into a suitable reservoir model to fit its purpose

To enhance the robustness of the numerical link between OLGAand ROCX

To develop primary capabilities for advanced integrated

simulation, such as component tracking across the sandface

The project is due to complete by the end of next year

Initial applications have shown promising results


11/14

Development Well GUI

Current OLGA GUI is not very convenient for well modeling

A project on developing a Well GUI was initialized in 2007

The preliminary version was released, setting focus on well

geometry editing!

The development will continue The ambition is to develop it into a comprehensive GUI so that

most of the well simulations can be done in it without resorting to

the OLGA GUI

The main challenges however are:

Network translation, e.g. multi-laterals with smart completions

Database for conventional well equipment


12/14

OLGA-for-Wells: the new short-cut for promotion!

The first gas well liquid loading

simulation

The first intermittent gas

production simulation

The first coiled tubing

simulation

The first blowout simulation

with reservoir dynamics

considered

The first WAG simulation

The first CO2 sequestration

simulation

These are all done by young

consultants below 30!

It is time to change your track!


13/14

Why you come backso late today? Whohave you beentogether with?I was togetherwith OLGA...

Ah.. OLGA,What did youget from her?Some tips

and tricks

What elsedid she say?Time tochange!


14/14

14

be careful... and good night!

7 - OLGA for Wells

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