# Assignment

Computing Skills Assignment Help

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# Dimension Structure Assignment Help

## OPTION 1  (NO ECLIPSE RUN CASE)

(1)          Grid cell dimensions  - From structure dimensions given (X, Y and Z) calculate dimensions of grid cells dx, dy and dz for input into Eclipse data set.  These will of course be dependent on your individual nx,ny,nz values.

(2)          Grid cell properties – input porosity, NTG and permeability values into Eclipse data set

(3)          Cell tops drops Δz in y direction–From dy and 2o dip angle calculate cell to cell drop Δz for input to TOPS keyword.

For 0o dip angle case Δz = 0 so that all TOPS = 6100 ft

(4) Calculate Hydrocarbon pore volume and Stock Tank Oil Initially In Place (STOIIP)  From 2o dip angle and (OW contact depth – 6100) calculate length of reservoir L (see below). For dip angle 0o L= Y

From reservoir volume, porosity, Swc and NTG, calculate hydrocarbon  pore volume. From this STOIIP can be calculated (check example eclipse data set for PVT properties)

5) Initial reservoir conditions –data given. Enter into data set (see example eclipse data )

6) Well and rate control inputs – Decide how many production and injection wells you want. Considering the dimensions of your model, set up WELSPECS and COMPDAT keywords in your Eclipse data set for these wells.  The example eclipse data set on Moodle should be helpful here. Also look at CW tutorial and Lecture slides on Moodle for guidance.

Put your well completions in sensible locations in the reservoir. Do not rely on example data set for this – well and completion data were randomly entered here.

Production and injection well rates are input with keywords WCONPROD and WCONINJ.  Again the example data set and the CW tutorial plus the Lecture notes will help here.

You will now have (1) an Eclipse data set to submit which will be marked on the basis of how well it honors the field data and would it run with minimum errors if it had been run. (2) Values to complete your report (see the revised CW description).

## OPTION 2  ( ECLIPSE RUN CASE)

(1)          Grid cell dimensions  - From structure dimensions given (X, Y and Z) calculate dimensions of grid cells dx, dy and dz for input into Eclipse data set.  These will be dependent on your individual nx,ny,nz values.

(2)          Grid cell properties – input porosity, NTG and permeability values into data set

(3)          Cell tops drops in y direction –From dy and 2o dip angle calculate cell to cell drop Δz for input to TOPS keyword

For 0o dip angle case Δz = 0 so that all TOPS = 6100 ft

4) Initial reservoir conditions –data given. Enter into data set (see example eclipse data set)

5) Well and rate control inputs – Decide how many production and injection wells you want. Considering the dimensions of your model, set up WELSPECS and COMPDAT keywords in your Eclipse data set for these wells.  The example eclipse data set on Moodle should be helpful here. Also look at CW tutorial and Lecture slides on Moodle for guidance.

Put your well completions in sensible locations in the reservoir. Do not rely on example data set for this – well and completion data were randomly entered here.

Production and injection well rates are input with keywords WCONPROD and WCONINJ.  Again the example data set and the CW tutorial plus the Lecture notes will help here.

6) Run Eclipse with your data set.  Correct any errors until you get a successful run.

7) When you have a successful run, find initial hydrocarbon pore volume and Oil initially in place (STOIIP) from the PRT file generated. Going in through Excel with ‘all files’ get Production profile and water cut from the RSM file generated and plot.  You will need to check that you have correct column markers in place, these can be added where necessary by clicking at top of columns.

You will now have (1) an Eclipse data set to submit which will be marked on the basis of how well it honors the field data and would it run with minimum errors if it had been run. (2) Values to complete your report.

When you have a successful Eclipse run you can if you wish run FLOVIZ (opening the EGRID file) to get figures like those below

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