-- This reservoir simulation deck is a simplified version of SPE1CASE2.DATA 
-- found in opm-data: https://github.com/OPM/opm-data/blob/master/spe1/SPE1CASE2.DATA


-- This reservoir simulation deck is made available under the Open Database
-- License: http://opendatacommons.org/licenses/odbl/1.0/. Any rights in
-- individual contents of the database are licensed under the Database Contents
-- License: http://opendatacommons.org/licenses/dbcl/1.0/

-- Copyright (C) 2015 Statoil

-- This simulation is based on the data given in 
-- 'Comparison of Solutions to a Three-Dimensional
-- Black-Oil Reservoir Simulation Problem' by Aziz S. Odeh,
-- Journal of Petroleum Technology, January 1981

---------------------------------------------------------------------------
------------------------ SPE1 - CASE 2 ------------------------------------
---------------------------------------------------------------------------

RUNSPEC
-- -------------------------------------------------------------------------

TITLE
   SPE1 - CASE 2

DIMENS
   10 10 3 /

-- The number of equilibration regions is inferred from the EQLDIMS
-- keyword.
EQLDIMS
/

-- The number of PVTW tables is inferred from the TABDIMS keyword;
-- when no data is included in the keyword the default values are used.
TABDIMS
/


OIL
GAS
WATER
DISGAS
-- As seen from figure 4 in Odeh, GOR is increasing with time,
-- which means that dissolved gas is present


FIELD

START
   1 'JAN' 2015 /

GRID
-- -------------------------------------------------------------------------


DX 
-- There are in total 300 cells with length 1000ft in x-direction	
   	300*1000 /
DY
-- There are in total 300 cells with length 1000ft in y-direction	
	300*1000 /
DZ
-- The layers are 20, 30 and 50 ft thick, in each layer there are 100 cells
	100*20 100*30 100*50 /

TOPS
-- The depth of the top of each grid block
	100*8325 /

PORO
-- Constant porosity of 0.3 throughout all 300 grid cells
   	300*0.3 /

PERMX
-- The layers have perm. 500mD, 50mD and 200mD, respectively.
	100*500 100*50 100*200 /

PERMY
-- Equal to PERMX
	100*500 100*50 100*200 /

PERMZ
-- Cannot find perm. in z-direction in Odeh's paper
-- For the time being, we will assume PERMZ equal to PERMX and PERMY:
	100*500 100*50 100*200 /



SCHEDULE
-- -------------------------------------------------------------------------
RPTSCHED
	'PRES' 'SGAS' 'RS' 'WELLS' /


-- If no resolution (i.e. case 1), the two following lines must be added:
--DRSDT
-- 0 /
-- Since this is Case 2, the two lines above have been commented out.
-- if DRSDT is set to 0, GOR cannot rise and free gas does not 
-- dissolve in undersaturated oil -> constant bubble point pressure

WELSPECS
-- Item #: 1	 2	3	4	5	 6
	'PROD'	'G1'	10	10	8400	'OIL' /
	'INJ'	'G1'	1	1	8335	'GAS' /
/
-- Coordinates in item 3-4 are retrieved from Odeh's figure 1 and 2
-- Note that the depth at the midpoint of the well grid blocks
-- has been used as reference depth for bottom hole pressure in item 5

COMPDAT
-- Item #: 1	2	3	4	5	6	7	8	9
	'PROD'	10	10	3	3	'OPEN'	1*	1*	0.5 /
	'INJ'	1	1	1	1	'OPEN'	1*	1*	0.5 /
/
-- Coordinates in item 2-5 are retreived from Odeh's figure 1 and 2 
-- Item 9 is the well bore internal diameter, 
-- the radius is given to be 0.25ft in Odeh's paper


WCONPROD
-- Item #:1	2      3     4	   5  9
	'PROD' 'OPEN' 'ORAT' 20000 4* 1000 /
/
-- It is stated in Odeh's paper that the maximum oil prod. rate
-- is 20 000stb per day which explains the choice of value in item 4.
-- The items > 4 are defaulted with the exception of item  9,
-- the BHP lower limit, which is given to be 1000psia in Odeh's paper

WCONINJE
-- Item #:1	 2	 3	 4	5      6  7
	'INJ'	'GAS'	'OPEN'	'RATE'	100000 1* 9014 /
/
-- Stated in Odeh that gas inj. rate (item 5) is 100MMscf per day
-- BHP upper limit (item 7) should not be exceeding the highest
-- pressure in the PVT table=9014.7psia (default is 100 000psia) 

TSTEP
--Advance the simulater once a month for TEN years:
31 28 31 30 31 30 31 31 30 31 30 31 
31 28 31 30 31 30 31 31 30 31 30 31 
31 28 31 30 31 30 31 31 30 31 30 31 
31 28 31 30 31 30 31 31 30 31 30 31 
31 28 31 30 31 30 31 31 30 31 30 31 
31 28 31 30 31 30 31 31 30 31 30 31 
31 28 31 30 31 30 31 31 30 31 30 31 
31 28 31 30 31 30 31 31 30 31 30 31 
31 28 31 30 31 30 31 31 30 31 30 31 
31 28 31 30 31 30 31 31 30 31 30 31 /

--Advance the simulator once a year for TEN years:
--10*365 /

END
