Problem/Error Messsages in Eclipse Deck

soi

Dear Eclipse Users;
I am getting the following messages while trying to execute Eclipse in HM Mode :

"@--MESSAGE AT TIME 1766.0 DAYS ( 1-OCT-2007):
@ RESTART FILE WRITTEN REPORT 59
@ RESTART INCLUDES FLUIDS IN PLACE
312 READING WCONHIST
313 READING DATES

@--PROBLEM AT TIME 1766.0 DAYS ( 1-OCT-2007):
@ RESIDUAL ERROR IN FLOW FOR
@ OIL 8.12438+231
@ WATER 4.18393+230
@ GAS 1.64929+232
@ TRY INCREASING MXWSIT IN TUNING RECORD 3

@--PROBLEM AT TIME 1766.0 DAYS ( 1-OCT-2007):
@ UN-PHYSICAL VALUE FOR 1/BG IN PVT TABLE 1 WELL MZ-1
@ PG = NaN RV = 0.0000E+00 1/BG = NaN

@--PROBLEM AT TIME 1766.0 DAYS ( 1-OCT-2007):
@ UN-PHYSICAL VALUE FOR 1/BW IN PVT TABLE 1 WELL MZ-1
@ PW = NaN 1/BW = NaN

@--PROBLEM AT TIME 1766.0 DAYS ( 1-OCT-2007):
@ UN-PHYSICAL VALUE FOR 1/BO IN PVT TABLE 1 WELL MZ-1
@ PO = NaN RS = 6.0558E-05 1/BO = NaN

@--PROBLEM AT TIME 1766.0 DAYS ( 1-OCT-2007):
@ UN-PHYSICAL VALUE FOR 1/BG IN PVT TABLE 1 WELL MZ-1
@ PG = NaN RV = 0.0000E+00 1/BG = NaN

@--PROBLEM AT TIME 1766.0 DAYS ( 1-OCT-2007):
@ UN-PHYSICAL VALUE FOR 1/BW IN PVT TABLE 1 WELL MZ-1" etc. etc.

Any idea as to why am I getting the above messages ? The simulation gets executed for about 5-6 years and then the messages start popping up. The Problem keeps repeating for all the wells in the deck until simulation aborts with excessive "Problem" messages. I tried increasing MXWSIT with no benefit. The PVT deck also looks OK from all angles. What could be source of this repeatitive Problem message ?

soi

Difficult without having the deck, but you could perform a few checks:

1. Verify production/injection history data at that date (1-OCT-2007). Bad data could be driving the simulator out of bounds, yielding crazy pressures (i.e. NaN) and hence printing those PVT errors as there′s no numerical pressure to look for.

2. Check what′s the well/reservoir pressure at that date and verify it is not abnormally high or low.

3. Verify that such pressure is comprised within the PVT table values, so the simulator is not extrapolating to find data.

soi

Your first @Problem tells you that you have not solved your flow rate correctly and the residual error is 1E+230. You can try increasing TUNING record 3 argument 5 to 20. If that does not work try a shorter time step @1766 days. (NEXTSTEP 0.1) I would guess that well MZ-1 has a rate change @1776 days. Once you get rid of the first @Problem the remaining ones will probably disappear.