333 lines
9.1 KiB
Plaintext
333 lines
9.1 KiB
Plaintext
-- This reservoir simulation deck is made available under the Open Database
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-- License: http://opendatacommons.org/licenses/odbl/1.0/. Any rights in
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-- individual contents of the database are licensed under the Database Contents
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-- License: http://opendatacommons.org/licenses/dbcl/1.0/
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-- Copyright (C) 2015 Statoil
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-- This simulation is based on the data given in
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-- 'Comparison of Solutions to a Three-Dimensional
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-- Black-Oil Reservoir Simulation Problem' by Aziz S. Odeh,
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-- Journal of Petroleum Technology, January 1981
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-- Modified to server as a oil-water two phase case
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---------------------------------------------------------------------------
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------------------------ SPE1 - CASE 2 -oil-water two phase case-----------
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---------------------------------------------------------------------------
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RUNSPEC
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-- -------------------------------------------------------------------------
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TITLE
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SPE1 - CASE 2 -- oil-water two phase case
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DIMENS
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10 10 3 /
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-- The number of equilibration regions is inferred from the EQLDIMS
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-- keyword.
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EQLDIMS
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/
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-- The number of PVTW tables is inferred from the TABDIMS keyword;
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-- when no data is included in the keyword the default values are used.
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TABDIMS
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/
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OIL
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WATER
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FIELD
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START
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1 'JAN' 2015 /
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WELLDIMS
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-- Item 1: maximum number of wells in the model
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-- - there are two wells in the problem; injector and producer
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-- Item 2: maximum number of grid blocks connected to any one well
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-- - must be one as the wells are located at specific grid blocks
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-- Item 3: maximum number of groups in the model
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-- - we are dealing with only one 'group'
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-- Item 4: maximum number of wells in any one group
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-- - there must be two wells in a group as there are two wells in total
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2 1 1 2 /
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UNIFOUT
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GRID
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-- The INIT keyword is used to request an .INIT file. The .INIT file
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-- is written before the simulation actually starts, and contains grid
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-- properties and saturation tables as inferred from the input
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-- deck. There are no other keywords which can be used to configure
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-- exactly what is written to the .INIT file.
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INIT
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-- -------------------------------------------------------------------------
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NOECHO
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DX
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-- There are in total 300 cells with length 1000ft in x-direction
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300*1000 /
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DY
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-- There are in total 300 cells with length 1000ft in y-direction
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300*1000 /
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DZ
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-- The layers are 20, 30 and 50 ft thick, in each layer there are 100 cells
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100*20 100*30 100*50 /
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TOPS
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-- The depth of the top of each grid block
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100*8325 /
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PORO
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-- Constant porosity of 0.3 throughout all 300 grid cells
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300*0.3 /
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PERMX
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-- The layers have perm. 500mD, 50mD and 200mD, respectively.
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100*500 100*50 100*200 /
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PERMY
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-- Equal to PERMX
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100*500 100*50 100*200 /
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PERMZ
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-- Cannot find perm. in z-direction in Odeh's paper
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-- For the time being, we will assume PERMZ equal to PERMX and PERMY:
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100*500 100*50 100*200 /
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ECHO
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PROPS
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-- -------------------------------------------------------------------------
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PVTW
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-- Item 1: pressure reference (psia)
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-- Item 2: water FVF (rb per bbl or rb per stb)
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-- Item 3: water compressibility (psi^{-1})
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-- Item 4: water viscosity (cp)
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-- Item 5: water 'viscosibility' (psi^{-1})
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-- Using values from Norne:
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-- In METRIC units:
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-- 277.0 1.038 4.67E-5 0.318 0.0 /
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-- In FIELD units:
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4017.55 1.038 3.22E-6 0.318 0.0 /
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ROCK
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-- Item 1: reference pressure (psia)
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-- Item 2: rock compressibility (psi^{-1})
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-- Using values from table 1 in Odeh:
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14.7 3E-6 /
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SWOF
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-- Column 1: water saturation
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-- - this has been set to (almost) equally spaced values from 0.12 to 1
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-- Column 2: water relative permeability
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-- - generated from the Corey-type approx. formula
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-- the coeffisient is set to 10e-5, S_{orw}=0 and S_{wi}=0.12
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-- Column 3: oil relative permeability when only oil and water are present
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-- - we will use the same values as in column 3 in SGOF.
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-- This is not really correct, but since only the first
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-- two values are of importance, this does not really matter
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-- Column 4: corresponding water-oil capillary pressure (psi)
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0.12 0 1 0
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0.18 4.64876033057851E-008 1 0
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0.24 0.000000186 0.997 0
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0.3 4.18388429752066E-007 0.98 0
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0.36 7.43801652892562E-007 0.7 0
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0.42 1.16219008264463E-006 0.35 0
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0.48 1.67355371900826E-006 0.2 0
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0.54 2.27789256198347E-006 0.09 0
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0.6 2.97520661157025E-006 0.021 0
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0.66 3.7654958677686E-006 0.01 0
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0.72 4.64876033057851E-006 0.001 0
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0.78 0.000005625 0.0001 0
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0.84 6.69421487603306E-006 0 0
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0.91 8.05914256198347E-006 0 0
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1 0.00001 0 0 /
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DENSITY
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-- Density (lb per ft³) at surface cond. of
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-- oil, water and gas, respectively (in that order)
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-- Using values from Norne:
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-- In METRIC units:
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-- 859.5 1033.0 /
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-- In FIELD units:
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53.66 64.49 /
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PVDO
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-- Column 1: dissolved gas-oil ratio (Mscf per stb)
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-- Column 2: bubble point pressure (psia)
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-- Column 3: oil FVF for saturated oil (rb per stb)
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-- Column 4: oil viscosity for saturated oil (cP)
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-- Use values from top left table in Odeh's table 2:
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14.7 2.0000 0.2000
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5014.7 1.8270 0.4490
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9014.7 1.7370 0.6310 /
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-- It is required to enter data for undersaturated oil for the highest GOR
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-- (i.e. the last row) in the PVTO table.
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-- In order to fulfill this requirement, values for oil FVF and viscosity
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-- at 9014.7psia and GOR=1.618 for undersaturated oil have been approximated:
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-- It has been assumed that there is a linear relation between the GOR
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-- and the FVF when keeping the pressure constant at 9014.7psia.
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-- From Odeh we know that (at 9014.7psia) the FVF is 2.357 at GOR=2.984
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-- for saturated oil and that the FVF is 1.579 at GOR=1.27 for undersaturated oil,
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-- so it is possible to use the assumption described above.
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-- An equivalent approximation for the viscosity has been used.
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/
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SOLUTION
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-- -------------------------------------------------------------------------
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EQUIL
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-- Item 1: datum depth (ft)
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-- Item 2: pressure at datum depth (psia)
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-- - Odeh's table 1 says that initial reservoir pressure is
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-- 4800 psi at 8400ft, which explains choice of item 1 and 2
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-- Item 3: depth of water-oil contact (ft)
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-- - chosen to be directly under the reservoir
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-- Item 4: oil-water capillary pressure at the water oil contact (psi)
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-- - given to be 0 in Odeh's paper
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-- Item 5: depth of gas-oil contact (ft)
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-- - chosen to be directly above the reservoir
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-- Item 6: gas-oil capillary pressure at gas-oil contact (psi)
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-- - given to be 0 in Odeh's paper
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-- Item 7: RSVD-table
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-- Item 8: RVVD-table
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-- Item 9: Set to 0 as this is the only value supported by OPM
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-- Item #: 1 2 3 4 5 6 7 8 9
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8400 4800 8450 0 8300 0 1 0 0 /
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SUMMARY
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-- -------------------------------------------------------------------------
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-- 1a) Oil rate vs time
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FOPR
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-- Field Oil Production Rate
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-- 2a) Pressures of the cell where the injector and producer are located
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BPR
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1 1 1 /
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10 10 3 /
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/
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-- In order to compare Eclipse with Flow:
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WBHP
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'INJ'
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'PROD'
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WOIR
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'INJ'
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'PROD'
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WOIT
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'INJ'
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'PROD'
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/
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WOPR
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'INJ'
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'PROD'
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WOPT
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'INJ'
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'PROD'
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WWIR
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'INJ'
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'PROD'
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/
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WWIT
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'INJ'
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'PROD'
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/
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WWPR
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'INJ'
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'PROD'
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/
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WWPT
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'INJ'
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'PROD'
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/
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SCHEDULE
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-- -------------------------------------------------------------------------
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RPTSCHED
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'PRES' 'WELLS' /
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RPTRST
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'BASIC=1' /
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-- If no resolution (i.e. case 1), the two following lines must be added:
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--DRSDT
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-- 0 /
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-- Since this is Case 2, the two lines above have been commented out.
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-- if DRSDT is set to 0, GOR cannot rise and free gas does not
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-- dissolve in undersaturated oil -> constant bubble point pressure
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WELSPECS
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-- Item #: 1 2 3 4 5 6
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'PROD' 'G1' 10 10 8400 'OIL' /
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'INJ' 'G1' 1 1 8335 'WAT' /
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/
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-- Coordinates in item 3-4 are retrieved from Odeh's figure 1 and 2
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-- Note that the depth at the midpoint of the well grid blocks
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-- has been used as reference depth for bottom hole pressure in item 5
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COMPDAT
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-- Item #: 1 2 3 4 5 6 7 8 9
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'PROD' 10 10 1 1 'OPEN' 1* 1* 0.5 /
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'INJ' 1 1 3 3 'OPEN' 1* 1* 0.5 /
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/
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-- Coordinates in item 2-5 are retreived from Odeh's figure 1 and 2
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-- Item 9 is the well bore internal diameter,
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-- the radius is given to be 0.25ft in Odeh's paper
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WCONPROD
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-- Item #:1 2 3 4 5 9
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'PROD' 'OPEN' 'ORAT' 20000 4* 1000 /
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/
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-- It is stated in Odeh's paper that the maximum oil prod. rate
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-- is 20 000stb per day which explains the choice of value in item 4.
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-- The items > 4 are defaulted with the exception of item 9,
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-- the BHP lower limit, which is given to be 1000psia in Odeh's paper
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WCONINJE
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-- Item #:1 2 3 4 5 6 7
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'INJ' 'WATER' 'OPEN' 'RATE' 1000 1* 9014 /
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/
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-- Stated in Odeh that gas inj. rate (item 5) is 100MMscf per day
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-- BHP upper limit (item 7) should not be exceeding the highest
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-- pressure in the PVT table=9014.7psia (default is 100 000psia)
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TSTEP
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--Advance the simulater once a month for TEN years:
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31 28 31 30 31 30 31 31 30 31 30 31
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31 28 31 30 31 30 31 31 30 31 30 31
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31 28 31 30 31 30 31 31 30 31 30 31
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31 28 31 30 31 30 31 31 30 31 30 31
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31 28 31 30 31 30 31 31 30 31 30 31
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31 28 31 30 31 30 31 31 30 31 30 31
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31 28 31 30 31 30 31 31 30 31 30 31
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31 28 31 30 31 30 31 31 30 31 30 31
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31 28 31 30 31 30 31 31 30 31 30 31
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31 28 31 30 31 30 31 31 30 31 30 31 /
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--Advance the simulator once a year for TEN years:
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--10*365 /
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END
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