CO2 Geological Storage Site Assessment and Risk … · Schlumberger Private CO2 Geological Storage...

Schlumberger Private

CO2 Geological Storage Site Assessment and Risk Management

Hanspeter RohnerPromoting CO2 Capture and Storage in RomaniaBucharest12th September 2008

2

Schlumberger Carbon Services

Schlumberger Public

Perfo

rman

ce &

Risk

Ma

nage

ment

Syste

m (P

RMSTM

)

SEVERITY

-11 L

-21 S

-41 C

-31 M

-51 M C

-22 L

-41 S

-62 M

-82 C

-1 02 M C

-33 L

-63 S

-93 M

-1 23 C

-1 53 M C

-44 L

-55 L

-84 S

-1 24 M

-1 64 C

-2 04 M C

- 1 05 S

- 1 55 M

- 2 05 C

- 2 55 M C

-1Lig h t

-2

-3

-4

-5

S e rio u s

M a jo r

C a ta s tro p h ic

M u lti-C a ta s tro p h ic

321

Possible

Unlikely

Improbable

5

Probable

4

Likely

L IK E L IH O O D

W h ite a rro w ind ic a te s d e c re a s in g ris k

P R E V E N TIO N

M IT IG AT IO N

C o n tro lM e a s u re s

R E D

B L U E

Y E L L O WG R E E N

IN T O LE R A B LE : D o n o t t ak e th is ri sk

U N D E S IR A B LE : D em on stra te A LA R P be fo re p ro cee d in g

A C C E P T A B LE : P roc eed ca re fu lly , w it h co n tin uou s im p rove m e nt

N E G LIG IB L E : S a fe to p roc eed

-16 to -1 0

-9 to -5

-4 to -2

-1

B L A C K N O N -O P E R A B LE : E v ac ua te th e z on e a nd or a rea /co un try-25 to -2 0

CO2 Storage Workflow

/ Site PreparationSite Construction Injection

Pre-Operation Phase

~ 10-50 years

~ 2-5 year

Operation Phase

~50-100+years

Post-Injection Phase

Site Retirement Programme(SRP)

Monitoring (M&V)• Operation

• Verification

• Environmental

Site Selection Site Characterization (SCP) Field Design

3


Schlumberger PublicModelingMeasurement for

Characterization

Construction Technologies& Interventions

Monitoring Measurements

Performance & Risk Management System

Performance & Risk Assessment• Capacity• Injectivity• Containment

• Cost• Environment• Heath & Security• Image• Regulatory compliance

Functions / Stakes

Risk Treatment

Actions

Schlumberger Private

Site Assessment

Site Selection Characterization

A robust site assessment process is a Must for risk minimization throughout a CO2 storage project

5


Schlumberger Public

Where to Store – Example Continental Europe

World Energy Atlas

Target Storage Formations:

• Depleted oil and gas reservoirs

• EOR and EGR

• Deep saline formations

• Other potential storage areas, i.e. deep unmineable coal

6


Schlumberger Public

Site Selection Overview

What are the difficulties?

• The lack of sufficient data (particularly in the case of aquifers) • High uncertainties to start with

What do we want to evaluate?

Capacity

The amount of CO2 that can be safely stored in the field

Capacity

The amount of CO2 that can be safely stored in the field

Containment

The ability of the formation to store CO2 safely and permanently

Containment

The ability of the formation to store CO2 safely and permanently

Injectivity

Expresses the ease with which the CO2 can be injected

Injectivity

Expresses the ease with which the CO2 can be injected

Others Criteria

Environment, cost, infrastructure, regulatory, public opinion

Others Criteria

Environment, cost, infrastructure, regulatory, public opinion

7


Schlumberger Public

Site Selection Methodology

Data CollectionData Review and QC

Pre-characterization studies

Primary Estimation ofthe Performance factors

Site Ranking

Roadmap for Characterization

List of data gap and uncertainties

CharacterizationProgramme Execution

8


Schlumberger Public

Estimation of the Capacity

• Total Storage Volume Estimation or Structural model

• Available Pore Volume• Petrel Earth Model

9


Schlumberger Public

Initial Quantitative estimation of Injectivity

• Near well bore model• Simulation with ECLIPSE™• Precipitation of

• NaCl• CaCO3

• CaCl2• pH calculations• Injectivity Assessment over time

1 yearmax 0.71

6 monthsmax 0.20

2 yearsmax 0.81

0 0.8Solid Saturation

1 yearmax 0.711 yearmax 0.71

6 monthsmax 0.20

6 monthsmax 0.20

2 yearsmax 0.812 yearsmax 0.81

0 0.8Solid Saturation

pH

0 6

10


Schlumberger Public

Preliminary Containment Assessment

Geomechanics

• Collect Analyze existing reports or data

• Preliminary indications of geomechanical behaviors

Geomechanics

• Collect Analyze existing reports or data

• Preliminary indications of geomechanical behaviors

The Caprocks

• Consider Criteria including:• Lithology• Thickness• Continuity • Faults• …

The Caprocks

• Consider Criteria including:• Lithology• Thickness• Continuity • Faults• …

Bounding Faults

• Consider Criteria including:• Presence• Extension• Transmissivity• …

Bounding Faults

• Consider Criteria including:• Presence• Extension• Transmissivity• …

Well integrity

• Consider Criteria including:• Cement Quality• Number of wells• Age of field and wells • …

Well integrity

• Consider Criteria including:• Cement Quality• Number of wells• Age of field and wells • …

Well sketch Cement quality Caprock

13"3/8

9"5/8

7"

11


Schlumberger Public

Storage Site Characterization

12


Schlumberger Public

Characterization Data AcquisitionGeophysics Geology

Geomechanics

Gamma Ray (GR)

0 (GAPI)200

Micronormal(HMNO)

20 0Microinverse

(HMIN)20 0

Caliper6 (IN) 16 SP-100 (MV) 0

Pad1:200M

RSOZ

DSOZ

RTHALS Deep Resistivity

(HLLD)

1 (OHMM)1000

1 (OHMM)1000

1 (OHMM)10001 (OHMM)1000

HALS Shallow Resistivity

(HLLS)MCFL Rxo

(RX18)

High Resolution Density (RHOZ)

1.95 (G/C3)2.95Neutron Porosity

(NPOR)CrossplotPorosity (PXND)PEF

45 (PU) -1545 (PU) -150 10

1500

1475

Petrophysics/ Mineralogy

Fluid propertiesand mobility

Geomechanics

Well integrity

13


Schlumberger Public

Surface imaging MappingEM survey interpretationData input

Information managementGIS database

Log interpretationWell correlationSurface identificationSurface/subsurface interaction

Uncertainty analysisUpscaling processesReservoir and Aquifer property population

CalibrationHistory matchPost processingPresentation

Data analysisFacies modellingFault modellingFracture modellingHydrodynamic test analysis

3D flow simulationGeochemistryGeomechanics

Eclipse

3D Geological model3D Property model of the Reservoir and the Overburden

Site Characterization Modeling Workflow

14


Schlumberger Public

From Data and Modeling to Injection Design

15


Schlumberger Public

Schlumberger PrivateAbandoned

well

Monitoring well

Injector well

CO2

Fault

Fractures

Caprock

Potable Water

Deep Saline Formation

CO2

Managing Performance and Risk – Integrity of Wells

16


Schlumberger Public

Well Integrity Management

CharacterisationCement logs

Drilling reportsWell geometry

Cement degradationCasing corrosionCO2 migration

Limit conditions

1

23

4

56

7

8

9

1 0

1 1

1 2

1

23

4

56

7

8

9

1 0

1 1

1 2

1

23

4

56

7

8

9

1 0

1 1

1 2

1

23

4

56

7

8

9

1 0

1 1

1 2

1

23

4

56

7

8

9

1 0

1 1

1 2

1

23

4

56

7

8

9

1 0

1 1

1 2

Data & input

K(t)

1

1110

9

8

7

6

5

4

3

2

CO2(t)H2O(t)

Dynamic model

Leak amount & probability

>20 M€

<20 M€

<5 M€<1 M€

<0,2 M€

FFinancial

Envir.3rd-PPeople

CSAFETY

6 : Catastr.

5 : Critical

4 : Major3 : Serious

2 : Marginal

1 : Minor

…B

AssetA

Reliability &availability.

Stakes

Level

>20 M€

<20 M€

<5 M€<1 M€

<0,2 M€

FFinancial

Envir.3rd-PPeople

CSAFETY

6 : Catastr.

5 : Critical

4 : Major3 : Serious

2 : Marginal

1 : Minor

…B

AssetA

Reliability &availability.

Stakes

Level

Consequence grid & transfert fonction

Static model

666564636261656555453525154645444342414363534333231326252423222121615141312111654321

DetectionEvolution

Conclusions

811

13

5

00

5

10

15

20

minor weak middle high critical

B = 50

Sensitivity analysisRisk mitigation optionsCost / Benefits ranking

Can we re-use existing wells ?More data needed ?

Probability of leakageType of leakage to expect X

=

An Integrated Solution to:• Leakage and Degradation Modeling• Leakage scenarios• Risk criticality estimation

17


Schlumberger Public

Conclusions

• A rigorously applied site selection and characterization process is the start to a successful CCS storage project

• A robust Risk Management System assures optimum performance throughout the life of a CO2 storage project (i.e. the example of well integrity management)

CO2 Geological Storage Site Assessment and Risk … · Schlumberger Private CO2 Geological Storage...

Documents

Transcript of CO2 Geological Storage Site Assessment and Risk … · Schlumberger Private CO2 Geological Storage...