ECLIPSEVersion 2014.1

Technical Description

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ECLIPSE Technical Description

Table of Contents

1 Introduction .................................................................................................. 1ECLIPSE features .............................................................................................................. 2ECLIPSE options ............................................................................................................. 11Ancillary programs ......................................................................................................... 17Additional programs ....................................................................................................... 18

2 Adjoint gradient screening ....................................................................... 22Keywords ......................................................................................................................... 22

Output ............................................................................................................................ 24Restrictions .................................................................................................................... 25Formulation .................................................................................................................... 25

3 Alkaline model ............................................................................................ 28Alkaline model 1 .............................................................................................................. 28

Using alkaline model 1 .................................................................................................. 31

Summary of keywords .................................................................................................... 31Example problem ............................................................................................................ 32

4 API tracking ................................................................................................ 37The API tracking facility ................................................................................................. 37

5 Aquifer modeling facilities ........................................................................ 40Numerical aquifer ............................................................................................................ 40Carter-Tracy aquifer ........................................................................................................ 42Fetkovich aquifer ............................................................................................................ 44Constant flux aquifer ...................................................................................................... 47Constant head aquifers .................................................................................................. 48Multi-component analytic aquifers ................................................................................ 48Summary of keywords .................................................................................................... 48

6 Asphaltene option ...................................................................................... 51Asphaltene formation: three-component model .......................................................... 52

Deposition - entrainment ............................................................................................... 54

Asphaltene formation: Pre-2011.1 model ..................................................................... 55Asphaltene characterization and precipitation ............................................................... 56Asphaltene flocculation-dissociation .............................................................................. 58Asphaltene deposition ................................................................................................... 59

Plugging control ......................................................................................................... 60

ECLIPSE Technical Description

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Asphaltene damage (both deposition models) ............................................................ 60Oil viscosity .................................................................................................................... 61Wettability change ......................................................................................................... 62General comments on viscosity behavior ...................................................................... 63

List of keywords .............................................................................................................. 63Outputs .......................................................................................................................... 64

Asphaltene reaction number ...................................................................................... 65

Example ........................................................................................................................... 65Converting a pre-2011.1 model ...................................................................................... 66

7 Brine tracking ............................................................................................. 68The Brine Model .............................................................................................................. 68

Brine conservation equation .......................................................................................... 68Multi-component brine model ........................................................................................ 69The PVT properties of brine .......................................................................................... 72Low salinity option ......................................................................................................... 73

Low salinity option with end-point scaling .................................................................. 75Low salinity and surfactant options ............................................................................ 79

Setting the initial conditions ........................................................................................... 88Wells, rivers and aquifers .............................................................................................. 89Tracer related options .................................................................................................... 89The polymer flood option ............................................................................................... 89The surfactant flood option ............................................................................................ 90

Multi-component brine and surfactant ........................................................................ 90Solving the conservation equations ............................................................................... 90

Summary of keywords .................................................................................................... 91Examples ......................................................................................................................... 93

8 CO2 injection: geological storage, EOR and ECBM ............................... 97Geological storage .......................................................................................................... 97CO2STORE ...................................................................................................................... 98

Using CO2STORE ......................................................................................................... 98

CO2SOL ........................................................................................................................... 99Using CO2SOL ............................................................................................................ 100

CO2SOL/H2SSOL/GASSOL .......................................................................................... 101Using GASSOL ............................................................................................................ 101

GASWAT ........................................................................................................................ 102Using GASWAT for CO2 storage issues ........................................................