Digital Petroleum Atlas
Shallow Water Field
General Information
Shallow Water Field Oil & Gas Data

General Field Information

Produces Oil: Yes Produces Gas: No
Exploration Method: A reflection seismograph survey conducted for Atlantic Refining Company located as anomaly on which the Mississippian discovery well was drilled.
Drilling Casing Practices: Open hole with acid treatments of 1,500 to 9,000 gallons. Two wells were shot with nitroglycerine.

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
08 DEC 1934 Vaniman 1
No Gas Production No Digital LAS Files No Core Images No Core Data
Well Location: C SE NE 15-T20S-R33W
Rotary Total Depth: 4686
Production Zone: Mississippian Oil
Initial Oil Potential: 1255 BOPD
Perforations: 4600' Mississippian (St. Louis)
Data Source: KOGF, Vol. II; DISCOVERY 3668
Discovery Date Well Name Available Well Data Oil Production Gas Production LAS File Viewer with Core Data Plots Core Image Core Data Table
18 MAY 1948 PYLE 3
No Oil Production No Gas Production No Digital LAS Files No Core Images No Core Data
Well Location: CNL SE SW 14-T20S-R33W
Rotary Total Depth: 4685
Production Zone: Marmaton Oil
Initial Oil Potential: 369 BOPD
Perforations: 4280' Marmaton Recompletion by plugback from the Mississippian
Comments: Recompleted by plugging back from the Mississippian Total recovery was approximately 16,500 barrels of oil. Only this one well tapped into this stratigraphic trap.
Data Source: KOGF, Vol. II

Summary Production Information

Field Size: 1920 acres
Total Wells: 29
Productive Oil Wells: 11 as of May 2024
Abandoned Wells: 9
Cumulative Oil: 2,231,118.71 bbls as of May 2024

Producing Formation:


MARMATON
(Marmaton Group)
Depth Top: 4286 feet

MARMATON (Marmaton Group)
Oil & Gas Production Information
Produces Oil: Yes

Producing Formation:


MISSISSIPPIAN
(Mississippian System)
Depth Top: 4660 feet
Formation Lithology: Crystalline and fossiliferous to dense limestone with porosity development in small vugular to oolicastic and coarse intercrystalline voids
Trap Type: Structural and stratigraphic. Altered by local erosion. Closures on regional nosing.

MISSISSIPPIAN (Mississippian System)
Oil & Gas Production Information
Produces Oil: Yes
Maximum Net Pay: 10 feet
Gas Oil Contact: There is no definite gas-oil contact in the reservoir. Reservoir limits are a result of porosity pinchout or increasing water saturation. Some edge water encroachment has occurred.
Drive Mechanism: Expansion of solution gas and water encroachment at low structural position in lower producing intervals in edge wells.
Water Production: Water production has increased gradually from traces initially to as high as 96% of the total fluid by 1959. Volumes, however, are small due to the low fluid capacities of the wells, ranging from between 2 and 9 barrels of water per well per day. As of 1959, no definite water datum had been established.
Proven Production: 500 acres

MISSISSIPPIAN (Mississippian System)
Oil Chemistry
Minimum Oil API Gravity: 26 Maximum Oil API Gravity: 28 %

MISSISSIPPIAN (Mississippian System)
Porosity
Porosity Type: There is variable porosity development throughout a 100-foot interval at the top of the formation. Several intervals of porosity occur roughly within the top 60 feet of the formation and one interval between 70 to 100 feet. The intervals are not necessarily continuous from well to well. The lower interval is usually the more uniformly developed and more permeable. The rocks are crystalline and fossiliferous to dense limestone with porosity development in small vugular to oolicastic and coarse intercrystalline voids. Some vertical fracture development occurs but is considered a small part of the porosity.
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