Case studiesStatus and Future Activities

By

Per BlystadCoordinator Petroleum GroupPresentation at the 2nd meeting

Ad Hoc Group of Experts on Harmonization of Energy Reserves and Resources Terminology

UNECE, Geneva, 11th November 2005

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Status Case Studies

Several case studies on UNFC for petroleum has beencarried out and presented

Case studies are voluntary based

Scope of previous Case Studies: To Demonstrate how UNFC can be used with differentnational classificationsTo demonstrate that UNFC can be used at all levels:

Deposit / FieldNational / Portfolio

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Case studies petroleumUKRAINE: Status of Implementation of the UNFC in Ukraine (21.02.2001)United Nations Framework Classification (UNFC)Russian Case Study (31.10.2003)United Nations Framework Classification (UNFC) and National Classifications. National Case Study – Poland (30.10.2003)Application of United Nations Framework Classification (UNFC) to Hydrocarbons in Norway (30.10.2003)United Nations Framework Classification (UNFC) Applied to the Gullfaks Field, Norway (30.10.2005)Comparison of the Russian Classification and UNFC of Reserves and Resources (30.10.2005)The Norwegian Resource Account in UNFC Field case - National Resource Account (30.10.2005)The UNFC for Petroleum Applied to the Orinoco Belt Field (30.10.2005)National Case Study - PolandBarnowko-Mostno-Buszewo and Koscian Fields (30.10.2005)

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Scope of Case Studies (1)

To Demonstrate how UNFC can be used with differentnational classifications

(Norway, Poland, Russian Federation, Ukraine)

To demonstrate that UNFC can be used at all levels:Deposit / Field

Norway: Gullfaks FieldPoland: Barnowko-Mostno-Buszewo and Koscian FieldsVenezuela: Orinoco Belt

National / PortfolioNorwayPolandVenezuela

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Scope of Case Studies (2)

SettingOnshore – Offshore

Petroleum typeConventional oilNon-conventional oilGas

Accumulation sizeVery large Medium Small

UNFC has been demonstrated to be applicable in different settings.Focus upon Case Studies as support for the Guidelines / Specifications

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Case studies and guidelines

Guidelines needs good Case Studies!

A broad selection of case studiesDifferent setting, type of petroleum, maturity of field / contingentresources, etc..

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Case Studies

Previous Case Studies could be expanded by additional documentation according to therequired level

A candidate: The Gullfaks FieldPresented 2003, 2004Extended case study:

Prospect Discovery Field development & Production

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Requirements to Case studies

What type of documentation is needed?Geographical informationGeological informationReservoir dataProject informationProduction performance

Accumulated productionProduction forecasts

InvestmentsAccumulated investmentsInvestments forecast

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UNFC applied to the Gullfaks field, extended studyetting

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Model of the Gullfaks field

DominoAccommodation

Horst complex

Developed in two phases

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Gullfaks A, B and C platforms

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Facts about Gullfaks field

Source: Facts 2005, MOE/NPD

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Gullfaks production as of December 2005

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0,0

0,5

1,0

1,5

2,0

2,5

3,0

0,0 50,0 100,0 150,0 200,0 250,0 300,0 350,0

Akkumulert olje (mill Sm3)

Olje

rate

- ol

je p

er m

åned

(mill

Sm

3)GULLFAKS

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Gullfaks

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Gullfaks oil resources in % of stock tank oil initially in place

Produced

88 Forecast Rev.PDO

April 1993 Forecast

Oct. 1993 Forecast

Oct. 1994 Forecast

Oct. 1995 Forecast

Aug. 1996 Forecast

RSP 1996

RSP 1997

RSP 1998

RSP 1999

35

30

25

20

15

10

5

01986 1988 1990 1992 1994 1996 1998 2000 2004

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Gullfaks Field - What information do we have?

Geology & reservoirGeographical information, MapsGeological information, MapsReservoir dataProject information

ProductionPerformanse, Accumulated productionProduction forecasts (at various times)

Investments, CAPEX, OPEXAccumulatedForecasts (at various times)

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Case Studies for the Guidelines & Specifications

Prioritized by the Technical Group

Ordered (& Coordinated?) by the Technical Group

What should be documented?Which cases are needed?Documentation level

We need the Case Studies within 6 month To cope

with the tight time schedule !

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Wanted

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Sign in for case studies:

Norway, Gullfaks Field

Norway, consider additional field if needed

……

……

……

……

……

……

Break out session

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Proved, probable and possible reserves vs committed and uncommitted reserves

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