Pioneer Natural Resources TAMING THE SPRABERRY Goke Dabiri Texas A&M University
Background Information Martin Co Borden Co Midland Co Glasscock Co Upton Co Reagan Co
23 9w 4w w7 11w 17 ET3 Floyd 7w
Problem Definition <10% Oil Recovery in 50 years! Complex fracture system Huge Kfx/Kfy Ratio (17,000md/100md !) Conventional Waterfloding???
Field Production Indicator…….
Simulation Model Setup 0.25miles 20w 29w 4w 14w 11w FLOYD 7w Grid --> 70 x 80 x 3(*2) Grid orientation? PVT and petrophysical data Dual porosity Geological input Oil production constraint Injectors, producers... 23 1C 21 33 25i 29 27 7w DA1 17 ET3 ET2 ET1
23 1C 21 33 25i 29 27 7w DA1 17 ET3 ET2 ET1 20w 29w 4w 14W 11w FLOYD 7w
7w P1 P2 P3 P4 P5 P7 P6 40 Acres Spacing
80 Acres Spacing 7w P1 P2 P3 P4 P5 P7 P6
120 Acres Spacing 7w P1 P2 P3 P4 P5 P7 P6
Conclusions……….. Fracture enhancement is preferred to grid orientation It is important to determine the angles and distances of the Injectors and Producers Relative to the Predominant Fractures
Gracias !
BACKUP SLIDES ARE AFTER THIS
No Fracture Enhancement 23 1C 21 33 25i 29 27 7w DA1 17 ET3 ET2 ET1 No Fracture Enhancement Fracture Enhancement Field History
No Fracture Enhancement 23 1C 21 33 25i 29 27 7w DA1 17 ET3 ET2 ET1 20w 29w 4w 14W 11w FLOYD 7w No Fracture Enhancement Fracture Enhancement Field History Refined Model
23 1C 21 33 25i 29 27 7w DA1 17 ET3 ET2 ET1 20w 29w 4w 14W 11w FLOYD 7w