Digital Petroleum Atlas
Gillespie Southeast Field
General Information
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Digital Petroleum Atlas |
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| Gillespie Southeast Field Oil & Gas Data | |||
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General Field Information | |
| Geologic Province: | Cambridge Arch |
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| Exploration Method: | Subsurface mapping |
| Surface Formation: | Peoria and Loveland of the Quarternary System Pleistocene Series |
| Oldest Formation Penetrated: | Precambrian Granite |
| Drilling Casing Practices: | A 12 1/4 inch hole is drilled 200 to 250 feet and 8 5/8 inch surface casing is set. A 7 7/8 inch hole is drilled from the base of the surface casing to the rotary total depth, which is fifty feet below the bottom of the lowest pay zone. The hole is drilled to 3000 feet with water and then from 3000 feet to the total depth with a salt starch mud system. A well site geologist is employed from the Topeka Formation to the total depth. Drillstem tests are taken on zones individually, based on sample shows. Completion practices consist of setting 4 1/2 inch production casing, running a bond log and perforating the zones in the upper few feet of pay to stay above the oil water contact. The wells are put on pump through 2 7/8 inch tubing. |
| Electric Logging Practices: | Gamma Ray, Neutron, guard log with caliper from TD to surface casing |
| Comments: | Other shows: Oread formation |
| Discussion: | The Gillespie Southeast Field located in East Central Decatur county was discovered in November 1979 with the completion of the Murfin Drilling Company No. 1 Elvin Bailey. On a production test the well produced 100 barrels of oil in five hours from perforations in the Kansas City F, G, and H zones. Upon completion, potential zones still behind pipe included the Oread, Toronto, and Lansing A, C, and D zones. The prospect originated from subsurface mapping. A northwest-southeast trending structural ridge was indicated with numerous oil shows encountered in dry wells structurally down dip. The most significant of these show holes is the No. 1 Kolsky located in the NW SW SW of section 13, operated by Adair Oil, and completed in August 1970. A drillstem test covering the Lansing C and D zones recovered 120 feet of very heavy oil and gas cut mud, 200 feet of heavy oil and gas cut mud and 40 feet of muddy water. The best location to evaluate this drillstem test show, in the up dip position was picked to the west in the Murfin Drilling Company No. 1 Elvin Bailey (NW SE SE, Sec. 14). Over a five year period, the field was developed with the addition of six producing wells and one injector (Murfin Drilling Company, No. 3, Elvin, NW SW SE, sec. 14). When this report was written in 1985, it was predicted that additional injector wells would be added to help maintain the reservoir pressure. |
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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| 12 OCT 1978 | ELVIN (BAILEY) 1 | 
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No Gas Production | No Digital LAS Files | No Core Images | No Core Data |
| Well Location: | NW SE SE 14-T3S-R27W |
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| Rotary Total Depth: | 3966 |
| Production Zone: | Lansing - Kansas City Supergroup |
| Initial Oil Potential: | 114 BOPD |
| Initial Formation Pressure: | 1243 |
| Casing: | 8 5/8" @ 218' 5 1/2" @ 3900' |
| Perforations: | 3550'-3677' OA |
| Treatments: | Acidized with 250 gallons |
| Data Source: | KOGF, Vol. V; DISCOVERY 893 |
Summary Production Information | |
| Field Size: | 480 acres |
| Total Wells: | 18 |
| Productive Oil Wells: | 5 as of June 2015 |
| Abandoned Wells: | 4 |
| Cumulative Oil: | 493,190.82 bbls as of June 2015 |
Producing Formation:LANS.-K.C. |
| Depth Top: | 3562 feet |
| Geological Age: | Missourian |
| Depositional Environment: | An alternating series of carbonates and shales deposited in a shallow sea. Deposition occurs in cycles of regression and transgression due to changes in sea level. |
| Formation Lithology: | Limestone white-tan, fine medium-grained crystalline fossiliferous (Fusulinds, Brachiopods) slightly oolitic, pin-point-good vuggy porosity. Good show free oil, odor fair, good saturation. |
| Formation Geometry: | Lenticular marine shoals associated with a NW-SE trending structural ridge |
| Trap Type: | Structural |
LANS.-K.C. (Lansing - Kansas City Supergroup) |
| Thickness: | 44 feet |
LANS.-K.C. (Lansing - Kansas City Supergroup) |
| Produces Oil: | Yes |
| Maximum Net Pay: | 26 feet | Average Net Pay: | 18 feet |
| Drive Mechanism: | Solution gas |
| Initial Pressure: | 1243 | Data Source of Initial Pressure: | KOGF, Vol. V |
| Pressure Maintenance or EOR: | Water flood | Estimated Ultimate Recovery: | 730500 |
| Estimated Primary Oil Recovery: | 521815 | Estimated Ultimate Recovery: | 730500 |
| Proven Production: | 280 acres |
LANS.-K.C. (Lansing - Kansas City Supergroup) |
| Oil Color: | Black % |
| Average Oil API Gravity: | 36 |
LANS.-K.C. (Lansing - Kansas City Supergroup) |
| Total Solids: | 115347 ppm |
| Chloride Equivalent: | 69690 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 |
LANS.-K.C. (Lansing - Kansas City Supergroup) |
| Maximum Porosity: | 11 % | Average Porosity: | 8 % |
LANS.-K.C. (Lansing - Kansas City Supergroup) |
| Maximum Horizontal: | 1750 md | Average Horizontal: | 521 md |
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