cmg_advanced_processes_reservoir_simulators_english_eng.pdf

8/12/2019 CMG_Advanced_Processes_Reservoir_Simulators_english_ENG.pdf

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CMG BusinessCMG Business

Intellectual Property Software Development

Reservoir Simulation

4D visualization

Consulting, Support, Training, R&D


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CMG BusinessCMG Business

30%Conventional

Oil

30%Oilsands and

Bitumen

25%ExtraheavyOil

15%Heavy Oil

70% of the worlds oilreserves areunconventionalsources

This is CMGsSPECIALTY

Total World Oil Reserves(% of total reserves)


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Our SpecializationOur Specialization

Thermal ProcessesThermal Processes

Combustion(THAI)

Cyclic steam

injection

SAGD

Electrical Heating

VAPEX

Thermal

Continuous steam injection

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Known for our superior PhysicsKnown for our superior Physics

Leader in the EOR advanced simulation processes market (+95%)


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Chemical ProcessesChemical Processes

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Foam

Injection

Low salinity

water injection

ASPGel injection

CO2injection

with Asphaltene

Precipitation & Plugging




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Enhanced Recovery in

Unconventional Reservoirs

Enhanced Recovery in

Unconventional Reservoirs

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CO2CBM / ECBM

ShaleGas/OilTight Gas

MicroseismicData Importedto simulator

VAPEX




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IMEX Black Oil simulator

GEM EOS compositional andgeomechanical simulator

STARS K-value compositional, thermal,chemical and geomechanicalsimulator

Reservoir Simulators

Phase Behavior

WINPROP

Pre / Post Processors

BUILDER

RESULTS 3D

RESULTS GRAPH

RESULTS REPORT

Project Manager

Model Conversion

ECL 100 IMPORT ASSISTANT

CMG SoftwareCMG Software

LAUNCHER

History Match, Optimization,Sensitivity & Uncertainty assesment

CMOST

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Some of the physical phenomena we can modelSome of the physical phenomena we can model

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Used to model changes in phase viscosity

when a key component is added (e.g. polymer)

Used to model non-Newtonian behavior of

injected fluids

shear thinning

shear thickening

combined model

tabular input model

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Compaction/Rebound

Subsidence

Dilation /Recompaction

Elastic/Plastic Deformation

2D and 3D geomechanical formulation

Stress effects on Porosity & Permeability

Geomechanics in Naturally Fractures modelsGeomechanical grid independent of flow grid

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Gels

Foam Microbes

Foamy Oil

In Situ Combustion

High temperature oxidation

Low temperature oxidation Fine Migration

In situ upgrading

Wax and asphaltene precipitation

STARS allows modelling of first

order, rate-dependent reaction

kinetics for recovery processes that

involve reactions between

components in fluids (i.e. reservoir

and injected) and in the formation(i.e. clays and other minerals).

Reaction rates can depend on tem

perature, component concentration,

permeability and velocity.

Examples include insitu-combustion,

cEOR, in-situ foam generation,

degradation & regeneration,

emulsions, solids, etc.

Asphaltenes precipitation

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Krg = 0.01

Krg = 1.00

XGasTotal = Xwen fase gaseosa + XSoln-Gasen fase gaseosa

Used to represent Wettability andResidual Oil Saturation variation with

phase composition

Interpolation can be a function of

component concentration, capillarynumber and/or interfacial tension.

pH changes

Miscible fluids

Flux velocities()

Composition changes

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Ty = 100 F

T = 617 F

Ty = 100 F

T = 617 F

SwirrT> SwirrTy

SorwT< SorwTyKrwiroT> KrwiroTySorgT< SorgTy

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Steam circulation (i.e.SAGD)

Selective dual injection

Hot diluent injection

Tubing AnularZ

Y

A fully coupled mechanistic model thatcalculates the transient segregated flow of

multi-phase fluids and heat within the wellbore

and between the wellbore and the reservoir.

Transient flow calculations

Heat loss to formationFluid segregation calculations

Friction pressure losses

Multiple flow regimes

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Advanced Well Modelling FeaturesAdvanced Well Modelling Features


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Extends Discretized Well model features towells with up to 3 concentric tubing strings

inside the wellbore plus allows for undulating

wells that connect with more than one reservoir

layer.

Transient flow calculations

Heat loss to formation

Fluid segregation calculations

Friction pressure losses

Multiple flow regimes

also models Flow Control Devices

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Tubing 1

Tubing 2

Annular

WHOC 2009-308

Advanced Well Modelling FeaturesAdvanced Well Modelling Features


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Used to specify actions that will beimplemented when a condition is achieved

during the simulation forecast period.

Can be applied to:

wells, groups, layers, sectors, field, etc.

Conditions[ > or


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The objective is to reduce the simulationrun time significantly without reducing the

calculation accuracy

Shared Memory

Any modelcan be parallelized regardless the

grid complexity and well configuration or

location

Multimillion cell models

Excellent Speedups

Efficient domain manipulation

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Advanced Simulator Performance FeaturesAdvanced Simulator Performance Features


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Steam Flood

SAGD

Simulator changes the block size automatically

based on rate of change of key parameters as

specified by simulation engineer.

Processes where small cells are required

Use small cells where needed and big cells elsewhere

Dynamic change based on:

Temperature, Saturation

Global Mole Fraction

Phase Mole Fraction (o, g, w)

Fluid Enthalpy

Pressure

Effective when an interface is present

Combustion: speed up 5-7

SAGD: speed up 2-5

VAPEX: speed up 2-4

Water Flood: speed up 2-4

ASP

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Advanced Simulator Peformance FeaturesAdvanced Simulator Peformance Features


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4.52

2.22

1.27

0.61

4.32

2.16 2.12

1.04

3.29

1.62

2.33

1.17

3.90

1.95

0.64

0.35

Serial Dynagrid Parallel Paradyn

Hardware andDynamicGridding

4 C PU 1 .6 5GHz P OWE5 !" # 4 C PU 2 .4 GH$ O %& er 'n ( in )*

2 CPU3.6 GHz#e'n+E,64-Win/64 16 CPU1.9GHzPOWE5 !"#

SAGD: 3.6 Increase with Parallel

x 3.6 Increase with Dynagrid

12.9Increase with Paradyne

Powerful combination of parallel

processing and Dynagrid features that

multiplies the simulation time speedup

effect!

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Advanced Simulator Peformance FeaturesAdvanced Simulator Peformance Features


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CMG is the leading company offering reservoir simulation technologyfor enhanced recovery and unconventional reservoir markets

CMG technology combines all the critical EOR physics with robustnumerical performace, and as a result has been selected as thesimulator of choice for more than 95% for projects of this kind.

CMG is the market leader in providing technologies that help thereservoir engineer with his/her EOR or Unconventional ReservoirSimulation projects, including Parallel Processing, Dynamic gridding,Coupled Geomechanics and Robust History-matcing and Optimzation.

CMG technology can model highly complexity reservoirs and EORprocesses that require more capabilities than available in much simplerblack oil or compositional simulators.

ConclusionsConclusions

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cmg_advanced_processes_reservoir_simulators_english_eng.pdf

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