Page 261 - Geology of Carbonate Reservoirs

242 SUMMARY: GEOLOGY OF CARBONATE RESERVOIRS

-7000 -6850 -7050
-6750 SQC BHL -6950
-6700
SCM -6850
BHL
-6750 SQC 1A
-6650
STQ 1
BHL
SCM 1 BT 1
BT SUN
BHL
TABOR
ST 1

Seismically Defined Structure:
Top of Meramec Formation
Quanah City Field, Texas

-6850

GT 1

152

Figure 8.15 Present structure map of Quanah City Field based on seismic data. The map

reveals that bottom - hole locations of the SQC 1A and SCM 1 wells are close to faults. The
location of Quanah City Field is shown on Figure 8.5 .
SCM 1 SQC 1A
ST 1

UNCONFORMITY ON ELLENBURGER

FACIES LEGEND
NOT TO SCALE
Lower Core Skeletal Veneer
Upper Core Intermound
Flank Oolite Shoal
Figure 8.16 A simplified reconstruction of the Mississippian “ mud mound reef ” at Quanah

City Field based on information from petrographic study of borehole core samples and
wireline log correlations. Research revealed that reservoir storage capacity is largely in

moldic and vuggy pores but flow capacity is primarily through fractures. (From Ahr and Ross
( 1982 ).)