Digital Petroleum Atlas
Finnup Field
General Information
Finnup Field Oil & Gas Data

General Field Information

Produces Oil: No Produces Gas: No
Exploration Method: W. L. Hartman drilled the discovery wells in the Damme and Finnup fields on regional subsurface geology. Indications were that the Hugoton gas field might be extended to the northeast and good reservoirs were known to exist in the Pennsylvanian and Mississippian rocks. The acreage was obtained from National Cooperative Refinery Association on a farmout.
Drilling Casing Practices: The wells in the Mississippian reservoir were completed in open holes or through perforations. Many of the wells produce naturally. Some, however, have been acidized with 15 percent hydrochloric acid with treatments ranging up to 1,000 gallons.
Discussion: The average completed well cost is $75,000 (November 1958).

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
11 AUG 1953 GEORGE FINNUP 1
No Gas Production No Digital LAS Files No Core Images No Core Data
Well Location: NE NE NW 34-T22S-R33W
Rotary Total Depth: 4905
Production Zone: Mississippian St. Louis Formation
Initial Oil Potential: 434
Perforations: 4756'-4762' Mississippian St. Louis Formation
Data Source: DISCOVERY 1335

Summary Production Information

Field Size: 160 acres
Total Wells: 1
Abandoned Wells: 0

Producing Formation:


Pennsylvanian Morrowan Sandstone
(Morrowan Stage)
Formation Lithology: The basal Pennsylvanian sandstone is clear, fine to medium grained, subangular to rounded quartzitic sand.
Trap Type: The basal Pennsylvanian (Morrowan) sandstone, which produces in the N.C.R.A. Damme 3 (see Damme field), is present in other wells but as of November 1958, it not been perforated.

Pennsylvanian Morrowan Sandstone (Morrowan Stage)
Thickness
Maximum Thickness: 30 feet

Pennsylvanian Morrowan Sandstone (Morrowan Stage)
Oil & Gas Production Information
Produces Oil: Yes
Maximum Net Pay: 30 feet
Drive Mechanism: The Morrowan series reservoir appears to have a water drive.
Water Production: Finnup field produces from 1 to 2 percent water. All wells were initially completed for little or no water.

Pennsylvanian Morrowan Sandstone (Morrowan Stage)
Oil Chemistry
Minimum Oil API Gravity: 30 Maximum Oil API Gravity: 32 %

Producing Formation:


MISSISSIPPIAN St. Louis Formation
(St. Louis Limestone Formation)
Formation Lithology: The Mississippian St. Louis formation is predominantly tan, dense, sublithographic to lithographic limestone interbedded with buff to light gray oolitic limestone, and the porosity is developed in the oolitic limestone. The oolites range in size from fine to coarse and are loosely cemented with resulting interoolitic porosity.
Trap Type: The Mississippian produces oil on a broad north-south trending structural nose and the prooduction is in part controlled by variations in the development of porosity in the oolitic limestone beds of the St. Louis Formation.

MISSISSIPPIAN St. Louis Formation (St. Louis Limestone Formation)
Thickness
Maximum Thickness: 18 feet

MISSISSIPPIAN St. Louis Formation (St. Louis Limestone Formation)
Oil & Gas Production Information
Produces Oil: Yes
Maximum Net Pay: 18 feet
Drive Mechanism: The reservoir in the Mississippian system has a gravity drainage and partial water drive.
Water Production: Finnup field produces from 1 to 2 percent water. All wells were initially completed for little or no water.

MISSISSIPPIAN St. Louis Formation (St. Louis Limestone Formation)
Oil Chemistry
Minimum Oil API Gravity: 30 Maximum Oil API Gravity: 32 %

Producing Formation:


PENNSYLVANIAN MARMATON GROUP
(Marmaton Group)
Formation Lithology: The Marmaton limestones are buff to light gray and are partly fossiliferous or oolitic. The porosity is interfossiliferous or interoolitic.
Trap Type: Production from the Marmaton group appears related to the structure and is controlled to some extent by the distribution of porosity on the structure.

PENNSYLVANIAN MARMATON GROUP (Marmaton Group)
Oil & Gas Production Information
Maximum Net Pay: 5 feet
Drive Mechanism: In November 1958 when the KOGF book, Volume 2, was written, it noted that production from the Marmaton group was insufficient at that time to establish the type of drive but they anticipated it would probably prove to be gas solution with a partial water drive.
Water Production: Finnup field produces from 1 to 2 percent water. All wells were initially completed for little or no water.

PENNSYLVANIAN MARMATON GROUP (Marmaton Group)
Oil Chemistry
Minimum Oil API Gravity: 30 Maximum Oil API Gravity: 31 %
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