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A realistic field case for testing of reservoir simulation models

Jon Kleppe, NTNU

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The Brugge Field

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The Brugge Field

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The Gullfaks Field

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The Norne Field

April, 2009

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•  Facts on the Norne Field

•  The Norne E-segment •  Case description

•  1st release package

•  Seismic data •  What next?

Outline

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•  •  The Norne E-segment •  Case description

•  1st package release

•  Seismic data

•  Facts on the Norne Field

Outline

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Facts on the Norne Field •  Discovered in December 1991

•  Initial oil in place is 160•106

Sm3, and recoverable around 90•106 Sm3

• Start of oil production in November 1997 and gas production in 2001

•  49 wells : 3 exploration, 46 production and injection wells

•  As of December 2007, cumulative oil produced is 77• 106 Sm3, or 86% of recoverable reserves, and 5•109 Sm3 of gas

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Stratigraphy Norne Field

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Faults, Fluid contacts, drainage strategy

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5th Q-marine survey: June 2008

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Outline

•  Facts on the Norne Field

•  •  Description of one possible case

•  1st Release package

•  Seismic data

•  Norne E-segment

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E-Segment of Norne field

D

E

D

E

E01

E01 E01

D

E

profile

owc

profile

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E-Segment of Norne field (flux regions)

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E-Segment of Norne field

•  Consist of 8733 active grids

•  8 wells as of end of 2006 •  4 injectors and 4

producers

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Quality Check full field model separated E-segment model

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Quality Check cont’d separated E-segment full field

02.Jan.2003

18.Jan.2006

02.Jan.2003

18.Jan.2006

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Quality Check cont’d

WOPT

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Outline

•  Background

•  Norne E-segment

•  1st release package

•  Seismic data

•  One possible case

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Description of one possible competitive history matching case

2003 2006

History match to be performed

Forecasting with Optimal EOR strategy

2006 optional

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Outline

•  Background

•  Norne E-segment •  Case description

•  1st release package

•  Seismic data •  1st release package

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Package of 1st Release Case 1.  Reservoir simulation model in Eclipse format, history

matched until December 2003. 2.  Production data in E-segment up to 2006, including

wells log 3.  Seismic data for E-segment

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Outline

•  Background

•  Norne E-segment •  Case description

•  1st release package

•  Seismic data •  Seismic data

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Seismic for E - Segment

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Line 1050

F-3 H injector

F-1 H injector

E-2 CH – new producer

E-2 BH-pilot

E-3 H - producer

E-3 AH-pilot E-3 AHT2 – producer in Not

E-3 BH - pilot

E-2 AH- failed producer

10-3 E-3 CHT2

E-2 H - producer

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2001 full

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2003 full

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2003-2001 full

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Seismic Processing (pre-stack portion )

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Seismic Processing (post-stack portion )

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What now? •  Norne data base is installed at NTNU for use by NTNU,

Stanford and TU Delft. Other research groups may request data from NTNU

•  Additional data from StatoilHydro may requested annually •  Two PhD students at NTNU will maintain data base and

provide assistance •  Several case studies will be defined, in cooperation

between NTNU, Stanford and TU Delft/TNO? •  First competitive case study will be initiated in 2009

–  Production and seismic data from 2006 will be hidden until participants´ results are submitted.

–  History matching from the beginning i.e 1997 – 2006 for this case.