Digital Petroleum Atlas
Patterson Field
General Information


Patterson Field Oil & Gas Data

General Field Information

Produces Oil: Yes Produces Gas: No
Exploration Method: Based on a combination of subsurface interpretation and seismograph data.
Drilling Casing Practices: As of October 1958, the three wells were producing naturally through the perforations. On most of the tests in the area, from 1000 to 1200 feet of surface casing was run.
Discussion: In 1942, the average cost to drill and equip a producing well was $48,000.

Discovery Well(s)

Discovery Date Well Name Available Well Data Oil Production Gas Production LAS File Viewer with Core Data Plots Core Image Core Data Table
24 OCT 1941 GATES O. PATTERSON UNIT 1-23
No Gas Production
No Core Images No Core Data
Well Location: C E2 SE SE 23-T22S-R38W
Rotary Total Depth: 5690
Production Zone: MORROW OIL
Initial Oil Potential: 3964 BOPD
Initial Formation Pressure: 1125
Perforations: 4740'-4752.5' in Morrow sandstone
Data Source: KOGF, Vol. II; DISCOVERY 2074

Summary Production Information

Field Size: 1920 acres
Total Wells: 23
Productive Oil Wells: 41 as of July 2024
Abandoned Wells: 6
Cumulative Oil: 3,378,051.77 bbls as of July 2024

Producing Formation:


MORROWAN
(Upper Kearny Member)


Depth Top: 4800 feet
Formation Lithology: Medium to coarse grained, angular, clear quartz sandstone. There is visual porosity and stain in the samples.
Trap Type: The producing interval is from 15 feet of sandstone in the upper Morrowan (Pennsylvanian) series, called the "Patterson sand." Accumulation is primarily the result of a stratigraphic trap, inasmuch as the sandstone lens appears to pinch out in all directions. The sandstone lens is situated on a structural high but the effect upon the oil accumulation is indeterminate.

MORROWAN (Upper Kearny Member)
Thickness

Thickness: 4 feet

MORROWAN (Upper Kearny Member)
Oil & Gas Production Information

Produces Oil: Yes
Maximum Net Pay: 15 feet Average Net Pay: 12 feet
Average Oil Column: 12 Average Gas Column: 0
Drive Mechanism: Gas solution drive
Water Production: In October 1958 when the KOGF, Vol. II entry was written for Patterson field, there were only three producing wells in the field. All three were completed free of water, but were producing water by October 1958. Pan American drilled a salt water disposal well to the Cedar Hills sandstone (Permian), the Gropp 1, in 22S-38W-24, 15-093-00727. The three wells produced from 6 to 12 barrels of water during a 24 hour test. Resistivity in ohms/M2: 60 degrees F - 0.078 80 degrees F - 0.062 100 degrees F - 0.054 120 degrees F - 0.045 Brine analysis came from the discovery well.
Proven Production: 300 acres

MORROWAN (Upper Kearny Member)
Oil Chemistry

Average Oil API Gravity: 34

MORROWAN (Upper Kearny Member)
Brine Chemistry

Total Solids: 142340 ppm Resistivity: .054
Chloride Equivalent: 86900 ppm Barium: 0 ppm
Bicarbonates: 243 ppm Calcium: 7450 ppm
Calcium Bicarbonate: 0 ppm Calcium Sulfate: 0 ppm
Iron: 0 Magnesium: 1510 ppm
Magnesium Sulfate: 0 ppm Silica: 0
Sodium Sulfate: 0 ppm Sodium Chloride: 0 ppm
Strontium: 0 Sulfates: 837 ppm

MORROWAN (Upper Kearny Member)
Porosity

Maximum Porosity: 21.2 % Average Porosity: 20 %

MORROWAN (Upper Kearny Member)
Permeability

Maximum Horizontal: 720 md Average Horizontal: 600.7 md

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