Digital Petroleum Atlas
Chapin Ranch Field
General Information


Chapin Ranch Field Oil & Gas Data

General Field Information

Produces Oil: Yes Produces Gas: Yes
Geologic Province: Pratt Anticline/Sedgwick Embayment
Exploration Method: Log and sample work
Oldest Formation Penetrated: Arbuckle
Drilling Casing Practices: The formations are generally drilled through and perforated then treated with clean up acid followed by a larger acid treatment.
Electric Logging Practices: Dual Induction Log, SP Compensated Neutron/ Compensated Density, Gammar Ray, Caliper
Comments: Red book author: Tim Pierce, Hummon Corporation, Wichita, KS. Other Shows: Viola.

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
06 MAY 1983 Chapin 1-36
No Gas Production No Digital LAS Files No Core Images No Core Data
Well Location: C NW SE 36-T31S-R11W
Rotary Total Depth: 4745
Production Zone: Douglas Oil
Initial Oil Potential: 48 BOPD from Douglas Lime
Initial Formation Pressure: 1350
Casing: 5 1/2" @ 4589'
Perforations: 4463'-4469' 3705'-3710'
Treatments: Acid and fracture treatment of Mississippi, acid treatment in Douglas
Data Source: KOGF, Vol. V; DISCOVERY 45
Discovery Date Well Name Available Well Data Oil Production Gas Production LAS File Viewer with Core Data Plots Core Image Core Data Table
12 JUL 1984 Chapin-Smith 2
No Gas Production No Digital LAS Files No Core Images No Core Data
Well Location: 100' S/C SE SW 26-T31S-R11W
Rotary Total Depth: 4290
Production Zone: Lansing - Kansas City Supergroup
Data Source: DISCOVERY 6175
Discovery Date Well Name Available Well Data Oil Production Gas Production LAS File Viewer with Core Data Plots Core Image Core Data Table
12 MAR 1987 Mathews 'A' 1
No Gas Production No Digital LAS Files No Core Images No Core Data
Well Location: C NW SW 31-T31S-R10W
Rotary Total Depth: 3925
Production Zone: Shawnee (Tor) Oil
Data Source: DISCOVERY 6176

Summary Production Information

Field Size: 2320 acres
Total Wells: 61
Productive Oil Wells: 22 as of December 2023
Productive Gas Wells: 1 as of May 1988
Abandoned Wells: 19
Cumulative Oil: 1,286,401.97 bbls as of December 2023
Cumulative Gas: 55,547.00 mcf as of May 1988

Producing Formation:


Tarkio Sand
(Tarkio Limestone Member)


Formation Lithology: Grey, fine grained, poorly sorted, subangular, quartz sand micaceous.
Trap Type: Stratigraphic

Tarkio Sand (Tarkio Limestone Member)
Oil & Gas Production Information

Produces Oil: Yes
Proven Production: 2680 acres Production Well Spacing: 40 acres

Producing Formation:


Snyderville Sand
(Snyderville Shale Member)


Geological Age: Oread Limestone of Shawnee Group
Depositional Environment: Deltaic to Sub Deltaic
Formation Lithology: Grey-brown, fine-very fine grained, moderately sorted, sub rounded, quartz sand, slightly micaceous, with calcite cement.
Formation Geometry: Lenticular sand, approximately 1/2 mile wide and 2 miles long.
Trap Type: Stratigraphic

Snyderville Sand (Snyderville Shale Member)
Oil & Gas Production Information

Maximum Net Pay: 22 feet Average Net Pay: 14 feet
Drive Mechanism: Water Encroachment
Initial Pressure: 1300 Data Source of Initial Pressure: KOGF, Vol. V
Proven Production: 2680 acres Production Well Spacing: 40 acres

Snyderville Sand (Snyderville Shale Member)
Porosity

Porosity Type: Intergranular porosity Maximum Porosity: 22 % Average Porosity: 18 %

Producing Formation:


Douglas Limestone
(Douglas Group)


Formation Lithology: Grey, bioclastic limestone, fine crystalline with vuggy & fossil porosity along with secondary dolomitization by solution.
Trap Type: Stratigraphic

Douglas Limestone (Douglas Group)
Oil & Gas Production Information

Proven Production: 2680 acres Production Well Spacing: 40 acres

Producing Formation:


Douglas Sand
(Douglas Group)


Formation Lithology: Grey, fine grained, poorly sorted, sub angular, quartz sand, micaceous and slightly glauconitic.
Trap Type: Stratigraphic

Douglas Sand (Douglas Group)
Oil & Gas Production Information

Proven Production: 2680 acres Production Well Spacing: 40 acres

Producing Formation:


LANSING "A"
(Lansing Group)


Depth Top: 3822 feet
Formation Lithology: Limestone, cream to white, fine crystalline to oolitic and fossiliferous
Trap Type: Stratigraphic

LANSING "A" (Lansing Group)
Thickness

Thickness: 12 feet

LANSING "A" (Lansing Group)
Oil & Gas Production Information

Produces Oil: Yes
Proven Production: 2680 acres Production Well Spacing: 40 acres

Producing Formation:


Mississippi
(Mississippian System)


Formation Lithology: Chert devitrified to tripolitic, some vugular porosity and some fossiliferous chert.
Trap Type: Stratigraphic

Mississippi (Mississippian System)
Oil & Gas Production Information

Proven Production: 2680 acres Production Well Spacing: 40 acres

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