Digital Petroleum Atlas
Kohl West Field
General Information
Kohl West Field Oil & Gas Data

General Field Information

Produces Oil: Yes Produces Gas: No
Geologic Province: NW Flank Central Kansas Uplift
Exploration Method: Seismic and subsurface
Oldest Formation Penetrated: Arbuckle
Drilling Casing Practices: Move in and rig up rotary tools. Drill approx. 300' of surface hole, set 8 5/8" casing and cement with 150 sx Poz Mix 2% Gel, 3% CaC12. Drill to TD taking DST's where indicated. Penetrate 50-75' of the Arbuckle formation. Run Logs. Set 5 1/2" casing at TD with 150 sx 50-50 Poz Mix, 2% gel, 10% sa, 3/4% FRD. Place a port collar in string at approx 1800' and cement in with 100 sx common and 400 sx lite. Move in cable tools and drill out stage collar. Drill out any cement above float collar; do not drill shoe joint. Run bond and correlation log. Perf Arbuckle with 2 shots per foot. Acidize with 750 gallons RA-S, swab hole. If Arbuckle does not indicate commercial rate set Baker Model P plug between Arbuckle and Marmaton. Perf Marmaton with 1 shot per foot. Acidize Marmaton with 1000 gallons 15% NE with clay stabilizer. Swab then fracture with 21,000 gallons cross linked gelled 2% KCL water containing 15,000# 20/40 sand. Tail in with 7500# 10/20 sand. Flush with ungelled 2% KCL water. Swab back frac water. If well appears to be commercial, place on production.
Electric Logging Practices: Basically run laterolog with gamma ray and neutron from TD to base of surface casing
Discussion: An overall thickness map of the Marmaton (considered to be Pawnee by some knowledgeable Kansas geologists) is available in Kansas Oil and Gas Fields, Volume V. Indications are that there is a critical thickness inasmuch as it thins from SW to NE, a point that is reached where it will no longer produce. The field experienced a very rapid decline in reservoir pressure in the Marmaton giving indications of continuity of reservoir. In 1985 it was presumed that a flood would probably be attempted at some time in the future. Attempts were made to obtain additional information on certain wells but they were unsuccessful.

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
14 JAN 1980 Wiesner 'I' 1
No Gas Production No Digital LAS Files No Core Images No Core Data
Well Location: NW SE NE 9-T12S-R21W
Rotary Total Depth: 4055
Production Zone:
Initial Oil Potential: 50 BOPD
Initial Formation Pressure: 953
Casing: 5 1/2" @ 4016' w/ 120 sx
Perforations: None - open hole completion
Treatments: Acid 12,250, 1000 gals MOD 202, re-acidized 2500 gals MOD 202
Comments: LTD: 4052
Data Source: KOGF, Vol. V; DISCOVERY 5693

Summary Production Information

Field Size: 1120 acres
Total Wells: 32
Productive Oil Wells: 25 as of June 2024
Abandoned Wells: 3
Cumulative Oil: 812,563.39 bbls as of June 2024

Producing Formation:


MARMATON
(Marmaton Group)
Depth Top: 3934 feet
Geological Age: Pennsylvanian
Depositional Environment: Regressive limestone deposited on shelf
Formation Lithology: Limestone, white and gray, chalky to crystalline pink to flesh colored chert, chert is partly weathered with pinpoint porosity.
Trap Type: Structural with stratigraphic implications

MARMATON (Marmaton Group)
Thickness
Thickness: 7 feet

MARMATON (Marmaton Group)
Oil & Gas Production Information
Produces Oil: Yes
Maximum Net Pay: 18 feet Average Net Pay: 8.2 feet
Gas Oil Ratio: 9 scf / bbl Drive Mechanism: Fluid expansion
Initial Pressure: 1163 Data Source of Initial Pressure: KOGF, Vol. V
Pressure Maintenance or EOR: Waterflood Estimated Ultimate Recovery: 630,000 BO
Estimated Primary Oil Recovery: 420000 Estimated Ultimate Recovery: 630,000 BO

MARMATON (Marmaton Group)
Gas Chemistry
Specific Gravity: 1.12

MARMATON (Marmaton Group)
Oil Chemistry
Oil Color: Black %
Average Oil API Gravity: 35.7

MARMATON (Marmaton Group)
Brine Chemistry
Total Solids: 38428 ppm Resistivity: .12
Chloride Equivalent: 36977 ppm Barium: 0 ppm
Bicarbonates: 0 ppm Calcium: 0 ppm
Calcium Bicarbonate: 0 ppm Calcium Sulfate: 0 ppm
Iron: 0 Magnesium: 0 ppm
Magnesium Sulfate: 0 ppm Silica: 0
Sodium Sulfate: 0 ppm Sodium Chloride: 0 ppm
Strontium: 0 Sulfates: 0 ppm

MARMATON (Marmaton Group)
Porosity
Porosity Type: Intercrystalline, pinpoint, vugular fractures Maximum Porosity: 23 % Average Porosity: 14.7 %

MARMATON (Marmaton Group)
Permeability
Maximum Horizontal: 47.8 md Average Horizontal: 16.5 md

Producing Formation:


ARBUCKLE
(Arbuckle Group)
Depth Top: 4013 feet
Geological Age: Ordovician
Depositional Environment: Shelf carbonate altered by diagenesis
Formation Lithology: Dolomite, buff, fine to medium crystalline, fair, intercrystalline porosity, some dolomite.
Trap Type: Structural with stratigraphic implications

ARBUCKLE (Arbuckle Group)
Thickness
Thickness: 39 feet

ARBUCKLE (Arbuckle Group)
Oil & Gas Production Information
Produces Oil: Yes
Maximum Net Pay: 10.5 feet Average Net Pay: 6.2 feet
Gas Oil Ratio: 288 scf/bbl Drive Mechanism: Water drive
Initial Pressure: 1250 Data Source of Initial Pressure: KOGF, Vol. V
Estimated Primary Oil Recovery: 255000

ARBUCKLE (Arbuckle Group)
Gas Chemistry
Specific Gravity: .75

ARBUCKLE (Arbuckle Group)
Oil Chemistry
Oil Color: Black %
Average Oil API Gravity: 35

ARBUCKLE (Arbuckle Group)
Brine Chemistry
Total Solids: 39345 ppm Resistivity: .12
Chloride Equivalent: 37350 ppm Barium: 0 ppm
Bicarbonates: 0 ppm Calcium: 0 ppm
Calcium Bicarbonate: 0 ppm Calcium Sulfate: 0 ppm
Iron: 0 Magnesium: 0 ppm
Magnesium Sulfate: 0 ppm Silica: 0
Sodium Sulfate: 0 ppm Sodium Chloride: 0 ppm
Strontium: 0 Sulfates: 0 ppm

ARBUCKLE (Arbuckle Group)
Porosity
Porosity Type: Intercrystalline and vugular porosity Maximum Porosity: 15.5 % Average Porosity: 11.4 %

ARBUCKLE (Arbuckle Group)
Permeability
Maximum Horizontal: 66.2 md Average Horizontal: 14.2 md
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