Bureau of Economic Geology

Gulf Coast Carbon Center


Arbuckle Group, Oklahoma (02)

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Comments on Geologic Parameters

02 Permeability/Hydraulic Conductivity:

The permeability map that we chose comes from a numerical ground-water flow model developed by Jorgensen and others (1996). The rock matrix consists of low-porosity mudstones and dolomudstones. However, the permeability map of Jorgensen and others (1996) is regional in scope and does not reflect local differences in porosity and permeability. Therefore, one must realize that because of dissolution and dolomitization, the Arbuckle Group rocks are locally some of the most porous and permeable in the Mid-Continent region. It is often true that reported porosity and permeability values are much lower than the true values (Puckette, 1996). Puckette offered two examples of this phenomenon. The producing section of Cottonwood Creek field, Carter County, Oklahoma, has produced more than 4,000 bopd. Yet the reported porosity and permeability are 2 to 3 percent and less than 0.01 millidarcy, respectively (after Read and Richmond, 1993). In large part this is due to the nature of the karsted rock, which during coring yields proportionately much more of the low-porosity rock than the porous, sometimes brecciated and cavernous zones (Puckette, 1996).

02 Map:

map

02 Reference:

Jorgensen, D. G., Helgesen, J. O., Signor, D. C., Leonard, R. B., Imes, J. L., and Christenson, S. C., 1996, Analysis of regional aquifers in the central midwest of the United States in Kansas, Nebraska and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming—Summary: U.S. Geological Survey, Professional Paper 1414-A, 67 p.

Puckette, J. O., 1996, Evaluation of underpressured reservoirs as potential repositories for liquid waste: Oklahoma State University, Ph.D. dissertation, 274 p.

Read, D. L., and Richmond, G. L., 1993, Geology and reservoir characteristics of the Arbuckle Brown zone in the Cottonwood Creek field, Carter County, Oklahoma, in Johnson, K. S., and Campbell, J. A., eds., Petroleum reservoir geology in the southern Midcontinent: Oklahoma Geological Survey, Circular 95, p. 113–125.

 

Arbuckle Group Parameters
Arbuckle Group home
Formation by parameter
01 Depth
02 Permeability/hydraulic conductivity
03 Formation thickness
04 Net sand thickness
05 Percent shale
06 Continuity
07 Top seal thickness
08 Continuity of top seal
09 Hydrocarbon production
10 Fluid residence time
11 Flow direction
12a CO2 solubility brine: formation temperature
12b CO2 solubility brine: formation pressure
12c CO2 solubility brine: formation water salinity
13 Rock/water interaction
14 Porosity
15 Water chemistry
16 Rock mineralogy

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RI0283

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