Digital Petroleum Atlas
Jennison Field
General Information
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Digital Petroleum Atlas |
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| Jennison Field Oil & Gas Data | |||
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General Field Information | |
| Geologic Province: | Hugoton Embayment of Anadarko Basin |
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| Exploration Method: | Seismic (single point) |
| Surface Formation: | Niobrara Formation, Colorado Group, Upper Cretaceous Series, Cretaceous System |
| Oldest Formation Penetrated: | St. Louis Formation, Meramecian Series, Mississippian System |
| Drilling Casing Practices: | Approximately 350' of 8 5/8" surface casing is set and the wells are drilled in a standard manner with rotary tools using a chemical mud system. Potentially productive formations are evaluated by drillstem tests as encountered. The wells are then logged and 5 1/2" production casing is set. The zones are usually evaluated with the deepest first, progressing upward. The zone is perforated and then treated with various quantities of acid. Occasionally several zones will be tested together, but often they are isolated for testing and then all plugs are pulled and the wells are put on pump. |
| Electric Logging Practices: | Gamma Ray, Neutron, Guard with caliper logs have been run on most of the wells in the Jennison Field. |
| Comments: | Other shows: Drillstem tests, sample and log evaluation indicate that many zones are potentially productive and remain behind the pipe |
| Discussion: | The Jennison Field has a total of eighteen potentially productive limestone members. The production appears to be controlled by both structure and stratigraphy. An isopach map of the interval between the Stark Shale and the Fort Scott Limestone indicates that the porosity development and productive potential is enhanced over a paleo-structure shown by the thinning of the interval. The result of the structural closure with the porosity development is an excellent trap for hydrocarbons. Due to the vast number of productive horizons, only the most pertinent maps are shown and most of the descriptive and qualitative data are generalized for each group. |
Discovery Well(s) |
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| Discovery Date | Well Name | Available Well Data | Oil Production | Gas Production | LAS File Viewer with Core Data Plots | Core Image | Core Data Table |
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| 07 MAR 1973 | Jennison 'C' 1 | 
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No Gas Production | No Digital LAS Files | No Core Images | No Core Data |
| Well Location: | NW SW NW 21-T16S-R29W |
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| Rotary Total Depth: | 4181 |
| Production Zone: | Lansing - Kansas City Supergroup |
| Initial Oil Potential: | 75 BOPD |
| Initial Formation Pressure: | 1116 |
| Casing: | 8 5/8" @ 266' 5 1/2" @ 4500' |
| Perforations: | 4166'-4174' |
| Treatments: | Acidized with 250 gallons |
| Data Source: | KOGF, Vol. V; DISCOVERY 4910 |
| Discovery Date | Well Name | Available Well Data | Oil Production | Gas Production | LAS File Viewer with Core Data Plots | Core Image | Core Data Table |
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| 15 APR 1982 | Jennison 'B' 1 |
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No Gas Production | No Digital LAS Files | No Core Images | No Core Data |
| Well Location: | SE NE SW 20-T16S-R29W |
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| Rotary Total Depth: | 4450 |
| Production Zone: | Marmaton Group |
| Discovery Date | Well Name | Available Well Data | Oil Production | Gas Production | LAS File Viewer with Core Data Plots | Core Image | Core Data Table |
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| 05 AUG 1982 | Jennison 'B' 2 |
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No Gas Production | No Digital LAS Files | No Core Images | No Core Data |
| Well Location: | NE NE SW 20-T16S-R29W |
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| Rotary Total Depth: | 4470 |
| Production Zone: | Cherokee Group |
| Discovery Date | Well Name | Available Well Data | Oil Production | Gas Production | LAS File Viewer with Core Data Plots | Core Image | Core Data Table |
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| 14 APR 1983 | Jennison 'B' 5 |
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No Gas Production | No Digital LAS Files | No Core Images | No Core Data |
| Well Location: | SE SW SW 20-T16S-R29W |
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| Rotary Total Depth: | 4465 |
| Production Zone: | Shawnee Oil |
Summary Production Information | |
| Field Size: | 1440 acres |
| Total Wells: | 44 |
| Productive Oil Wells: | 21 as of February 2025 |
| Abandoned Wells: | 11 |
| Cumulative Oil: | 2,183,226.39 bbls as of February 2025 |
Producing Formation:SHAWNEE |
| Depth Top: | 3872 feet |
| Geological Age: | Pennsylvanian Period Paleozoic Era |
| Depositional Environment: | The Shawnee Group was deposited in a cyclic environment of alternating shales and limestones. The carbonate banks may form over a paleostructure forming a higher level of energy, enhancing the porosity development on these positive areas. |
| Formation Lithology: | Toronto: Limestone, white, fossiliferous, fine crystalline, with cherty limestone |
| Formation Geometry: | An elongate anticlinal feature that has northeast to southwest trend. Closure not available. |
| Trap Type: | Structural / Stratigraphic Combination |
SHAWNEE (Shawnee Group) |
| Thickness: | 3 feet |
SHAWNEE (Shawnee Group) |
| Produces Oil: | Yes |
| Average Net Pay: | 3 feet |
| Average Oil Column: | 3 |
| Oil Water Contact: | -1072' |
| Drive Mechanism: | Water drive - gas solution combination gas solution |
| Initial Pressure: | 1115 | Data Source of Initial Pressure: | KOGF, Vol. V |
| Proven Production: | 880 acres | Production Well Spacing: | 10 acres |
SHAWNEE (Shawnee Group) |
| Oil Color: | Dark green % |
| Oil Type: | Sweet % |
| Average Oil API Gravity: | 32 |
SHAWNEE (Shawnee Group) |
| Resistivity: | .05 |
| Chloride Equivalent: | 37540 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 |
SHAWNEE (Shawnee Group) |
| Porosity Type: | Fair vugular | Maximum Porosity: | 20 % | Average Porosity: | 10 % |
Producing Formation:LANSING |
| Depth Top: | 3883 feet |
| Geological Age: | Pennsylvanian Period Paleozoic Era |
| Depositional Environment: | The Lansing Kansas City was deposited in a cyclic environment of alternating shales and limestones. The carbonate banks may form over a paleostructure forming a higher level of energy, enhancing the porosity development on these positive areas. |
| Formation Lithology: | Limestone, cream to tan, fine to medium crystalline, slightly fossiliferous |
| Formation Geometry: | An elongate anticlinal feature that has northeast to southwest trend, with 18' of closure. |
| Trap Type: | Structural / Stratigraphic Combination |
LANSING (Lansing Group) |
| Thickness: | 36 feet |
LANSING (Lansing Group) |
| Produces Oil: | Yes |
| Drive Mechanism: | Some zone water drive, some gas solution |
| Initial Pressure: | 1116 | Data Source of Initial Pressure: | KOGF, Vol. V |
| Proven Production: | 880 acres | Production Well Spacing: | 10 acres |
LANSING (Lansing Group) |
| Oil Color: | Dark green % |
| Oil Type: | Sweet % |
| Average Oil API Gravity: | 36 |
LANSING (Lansing Group) |
| Resistivity: | .05 |
| Chloride Equivalent: | 26000 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 |
LANSING (Lansing Group) |
| Porosity Type: | Fair to good vugular and intercrystalline | Maximum Porosity: | 26 % | Average Porosity: | 15 % |
LANSING (Lansing Group) |
| Average Horizontal: | 194 md |
Producing Formation:MARMATON |
| Depth Top: | 4188 feet |
| Geological Age: | Pennsylvanian Period Paleozoic Era |
| Depositional Environment: | The Marmaton Group was deposited in a cyclic environment of alternating shales and limestone. The carbonate banks may form over a paleostructure forming a higher level of energy, enhancing the porosity development on these positive areas. |
| Formation Lithology: | Limestone, cream to white, fine crystalline |
| Formation Geometry: | Fort Scott: An elongate anticlinal feature that has northeast to southwest trend, with 24' of closure. |
| Trap Type: | Structural / Stratigraphic Combination |
MARMATON (Marmaton Group) |
| Thickness: | 40 feet |
MARMATON (Marmaton Group) |
| Produces Oil: | Yes |
| Drive Mechanism: | Gas solution with some water drive |
| Initial Pressure: | 1071 | Data Source of Initial Pressure: | KOGF, Vol. V |
| Proven Production: | 880 acres | Production Well Spacing: | 10 acres |
MARMATON (Marmaton Group) |
| Oil Color: | Black % |
| Oil Type: | Sweet % |
| Average Oil API Gravity: | 40 |
MARMATON (Marmaton Group) |
| Resistivity: | .08 |
| Chloride Equivalent: | 25000 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 Type: | Oolitic and scattered vugular | Maximum Porosity: | 20 % | Average Porosity: | 10 % |
MARMATON (Marmaton Group) |
| Average Horizontal: | 1219 md |
Producing Formation:CHEROKEE |
| Depth Top: | 4359 feet |
| Geological Age: | Pennsylvanian Period Paleozoic Era |
| Depositional Environment: | The Cherokee Group was deposited in a cyclic environment of alternating shales and limestones. The carbonate banks may form over a paleostructure forming a higher level of energy, enhancing the porosity development of these positive areas. |
| Formation Lithology: | Limestone, grey, white, fine crystalline. Occasionally Johnson zone will be sandy chert to sandstone, white, well sorted. |
| Formation Geometry: | An elongate anticlinal feature that has northeast to southwest trend. Closure not available. |
| Trap Type: | Structural / Stratigraphic Combination |
CHEROKEE (Cherokee Group) |
| Thickness: | 36 feet |
CHEROKEE (Cherokee Group) |
| Produces Oil: | Yes |
| Drive Mechanism: | Solution gas with some water drive |
| Initial Pressure: | 1023 | Data Source of Initial Pressure: | KOGF, Vol. V |
| Proven Production: | 880 acres | Production Well Spacing: | 10 acres |
CHEROKEE (Cherokee Group) |
| Oil Color: | Black % |
| Oil Type: | Sweet % |
| Average Oil API Gravity: | 36 |
CHEROKEE (Cherokee Group) |
| Resistivity: | .14 |
| Chloride Equivalent: | 0 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 |
CHEROKEE (Cherokee Group) |
| Porosity Type: | Scattered vugular | Maximum Porosity: | 25 % | Average Porosity: | 10 % |
CHEROKEE (Cherokee Group) |
| Average Horizontal: | 1655 md |
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