fracture technologies history match using wellwhiz fracture technologies ltd. wellwhiz pea-74
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Fracture Technologies
History Match Using WellWhizHistory Match Using WellWhiz
Fracture Technologies Ltd.Fracture Technologies Ltd.
WellWhiz PEA-74WellWhiz PEA-74
Fracture Technologies
Over ViewJune 2002-June 2003
Over ViewJune 2002-June 2003
Module Description
Number ofParticipants
Required PerProject
Status ofProject as of
June 2003
Module-1
Fitting equationsinto lab data and
importing intoWellWhiz
3Completed
0%(Waiting on
data)
Module-2
History matchingwell tests withsimulation to
match Beta fromthe field*
5 Completed 6ea
80%
Module-3Condensate drop
out5
Completed100%
Module-4Complete 3D
Editor10 10
In Progress
Fracture TechnologiesSummarySummary
• The intention of this project is to assess the The intention of this project is to assess the effectiveness of matching the post Frac test effectiveness of matching the post Frac test data, in order to match a Beta for the data, in order to match a Beta for the proppant size utilised in the fracproppant size utilised in the frac
• A total of six wells have been matched, out of A total of six wells have been matched, out of which three are presented herewhich three are presented here
• Three examples are presented for the Three examples are presented for the following proppant sizes.following proppant sizes.• 20/40 single phase20/40 single phase• 16/20 multi-phase (oil and gas)16/20 multi-phase (oil and gas)• 12/18 single phase12/18 single phase
Fracture Technologies
Modeling Non Darcy Effects in a Fracture (Theoretical Equ)
Modeling Non Darcy Effects in a Fracture (Theoretical Equ)
• For two phase non-Darcy effects, a review of For two phase non-Darcy effects, a review of the literature suggests the following the the literature suggests the following the relationship:relationship:
2...
vK
v
L
P
g
2
1
11n
pn
pr
pSK
Fracture Technologies
Example-1 20/40 Proppant, at 4 Lb/ft2
(Top structure Map)
Example-1 20/40 Proppant, at 4 Lb/ft2
(Top structure Map)
Fracture Technologies
Fracture Profiles input20/40 Proppant, Conc=4 Lb/ft2
Fracture Profiles input20/40 Proppant, Conc=4 Lb/ft2
Fracture Technologies
WellWhiz Output (20/40)WellWhiz Output (20/40)
Fracture Technologies
Multi-Frac Horizontal Well(Oil and Gas)
Multi-Frac Horizontal Well(Oil and Gas)
Fracture Technologies
Proppant: 16/20, 3 Lb/ft2 (Alpha=48,800, n1=0.50, n2=5.5)
Proppant: 16/20, 3 Lb/ft2 (Alpha=48,800, n1=0.50, n2=5.5)
Fracture Technologies
Example-3Single(?) Phase Gas 12/18 at 2 Lb/ft2
Example-3Single(?) Phase Gas 12/18 at 2 Lb/ft2
Fracture Technologies
Net Pressure MatchNet Pressure Match
LOZ-1
Ne
t P
ress
ure
(p
si)
20
04
00
60
08
00
10
00
12
00
14
00
16
00
18
00
Time (min)5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0
Frac 1
Fracture Technologies
Frac GeometryFrac Geometry
Fracture Technologies
Proppant concentrationProppant concentration
Conductivity Profile
Lb
/Sq
-Ft
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
Fracture Penetration (ft)100 200 300
At Shut-in
At Closure
Frac 1
Fracture Technologies
WellWhiz Match12/18 Proppant (2 Lb/ft2)
WellWhiz Match12/18 Proppant (2 Lb/ft2)
Fracture TechnologiesSummary of Field BetaSummary of Field Beta
ProppSize
ProppConc(Lb/ft2)
Perm
(D)
Beta(S.Ph)(1/ft)
n1 n2
20/40 4.0 150 50,000 ---- -----
16/20 3.0 270 30,200 0.50 5.50
12/18 2.0 400 5,000 ----- -----
Fracture Technologies
Next Years ProgJuly 2003-June 2004
Next Years ProgJuly 2003-June 2004
Module Description
Number ofParticipants
Required PerProject
Module-1Fitting equations into lab data and
importing into WellWhiz3
Module-2History matching well tests with
simulation to match Beta from thefield*
5
Module-3 Complete 3D Editor 10
Fracture Technologies
WellWhiz Development
57 New Features
WellWhiz Development
57 New Features
1. Pressure output and PI calculations.(28-Jun-2002)2. New xxxx_ww.log log file3. Improve inline gridding (see model Grid too coarse)(1-Jul-2002)4. Better fracture root ball radius (1-Jul-2002)5. Can choose times to store grid results (2-Jul-2002)6. Better gridding between inline fractures (2-Jul-2002)7. Much smaller .out files (2-Jul-2002)8. Well numbers in IMEX file reduces number of diagnostics (2-Jul-2002)9. Fracture plot in Excel(17-July-2002)10. Fracture Orientation at exactly 90 deg cause mis-gridding (8-Jul-2002)11. Stopping and re starting WellWhiz/IMEX (9-Jul-2002)12. Editing tables with just one click. Also UnitTextFieldLabel (18-Jul-2002)(11-Jul-2002)13. All but one dialog converted to UnitTextFieldLabel components(18-Jul-2002)14. HCPV at graphics times in .out file(18-Jul-2002)15. Plotting the pressure (X,Y) along the fracture(18-Jul-2002).16. Mutiple permeability fractures, ideally User to edit and assign in 3D(9-Aug-2002)17. Relative file names in restart files(9-Aug-2002)18. Tubing hydraulics window allows switching with a warning (9-Aug-2002)19. Delete fracture profile button on profile dialog (9-Aug-2002)20. Diagnostic when beta!=0 except in fracture and setting DFactor=0 (14-Aug-2002)21. Console allows interruption without losing WellWhiz.(15-Aug-2002)22. Multiple completions in an inline fracture.(15-Sep-2002)23. Swinit array.(15-Sep-2002)24. Click on header in table cancels editing.(Jan-2003)25. Advanced perfs working (8-Jan-2003)26. Tool tips and 3 line headers. (15-Jan-2003)27. Merged Perforation and advanced windows. (15-Jan-2003)28. Square gridding option. Growth of gridding to edge(20-Jan-2003)29. Plot slice. (15-Jan-2003)30. Add small length quantity(8-Jan-2003)31. Picking position discrepancy fixed (1-Feb-2003)32. Well block put equal to corrected perf perm(18-Feb-2003)33. Advanced perf subdivide the subdive perf and casing blocks(18-Feb-2003)34. In EOG/Sami2i.wwb look at the WHP and injection with production(18-Feb-2003)35. Wellbore input should be multi-line for flow property ranges(20-Feb-2003)36. Open hole gravel pack(5-Mar-2003)37. Initial definition of advanced well should be OK (doesntwork15\Jack3) (12-Mar-2003)38. Delete surplus tables when you delete a fracture (12-Mar-2003)39. Retrograde condensate (21-Mar-2003)40. Zero all D-Factors does not work if you have defined a perf D-Factor doesntwork14\Run-L5 problem (3-Apr-2003)41. Assigned D-Factors work OK with beta(3-Apr-2003)42. Small grid at end of perf near edge bug corrected(3-Apr-2003)43. Surplus region numbers should be removed when you delete a fracture(6-Apr-2003)44. Fix block redraw on digitizing boundary. Double bufferring introduced (14-Apr-2003)45. Wiggly wells work for constant azimuth (17-Apr-2003)46. Scrollbars in 2D window. Appropriate cursors. Dragged image. (13-May-2003)47. Deleting all fractures resets the grid parameters(15-May-2003)48. Aligns fractures with perfs. (16-May-2003)49. Console window can stop program now. To-front button for main window.(16-May-2003)50. Drawing suspended less frequently. Debug18 monitors re-drawing.(16-May-2003)51. Optional frame. Entire window can be used for drawing.(16-May-2003)52. Force fracture to be in-line (done 16-May-2003)53. C:\WWExamples\data\doesntwork9\Base2 problems deviation, azimuth, frac wing left/right confusion, frac-ends not
gridding (16-May-2003)54. Trend table corrects illegal bottoms(16-May-2003)55. Improvement of some grid creation diagnostics for above wiggly wells(16-May-2003)56. Modifications for 2003.10 release of WellWhiz (28-May-2003)57. Import and Export of well flows from external source.(6-Jun-2003)
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