Digital Petroleum Atlas
Morrison Field
General Information
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Digital Petroleum Atlas |
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| Morrison Field Oil & Gas Data | |||
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General Field Information | |
| Geologic Province: | Anadarko Basin |
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| Exploration Method: | Subsurface geology |
| Surface Formation: | Post-Blaine Permian (Guadalupian) |
| Oldest Formation Penetrated: | Arbuckle (Ordovician) |
| Drilling Casing Practices: | Drill 800 feet of surface hole; set 8 5/8" surface casing with 600 sacks. Drill 7 7/8" hole to total depth with chemical/salt mud. Set 5 1/2" production pipe with 150 sacks pozmix and common, 18% salt; follow with 200 sacks lite. Perforate with 2 shots per foot across log porosity in oil column (in some wells where log porosity is essentially absent, much of the upper Viola was perforated, sometimes successfully and sometimes with much disappointment). No treatment; rare acid and fracture treatments have been unsuccessful. Swab in to flow; several wells have flowed for a few weeks or more. |
| Electric Logging Practices: | DIL and CNL-FDC-GR |
| Comments: | One portion of the field is drilled on 80-acre well spacing instead of 40. |
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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| 17 NOV 1936 | Morrison 3 | 
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No Gas Production | No Digital LAS Files | No Core Images | No Core Data |
| Well Location: | SE SW 17-T32S-R21W |
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| Rotary Total Depth: | 6483 |
| Production Zone: | VIOLA OIL AND GAS |
| Initial Oil Potential: | 2358 BOPD Flowing |
| Perforations: | 6254'-6483' No perforations - Open Hole |
| Treatments: | None |
| Comments: | Elevation: Resurveyed in 1979 and said elevation was 2141' |
| Data Source: | KOGF, Vol. V; DISCOVERY 641 |
| 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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| 21 NOV 1995 | Harden 1 |
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No Oil Production | 
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No Digital LAS Files | No Core Images | No Core Data |
| Well Location: | 150' N of C NW SW 17-T32S-R21W |
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| Rotary Total Depth: | 6790 |
| Production Zone: | MORROW GAS |
| Initial Oil Potential: | 173 BOPD flowing (parent well) |
| Initial Gas Potential: | 86.5 MCFPD on OWWO, immediately declined to amount sufficient to run lease equipment |
| Initial Formation Pressure: | 2391 |
| Casing: | 5 1/2" @ 6550' (K55, 14 to 15.5#) |
| Perforations: | 6417'-6420' Two shots per foot |
| Treatments: | None |
| Comments: | RTD of 6790' was at the Arbuckle |
| Data Source: | KOGF, Vol. V; DISCOVERY 9130 |
Summary Production Information | |
| Field Size: | 1280 acres |
| Total Wells: | 28 |
| Productive Oil Wells: | 4 as of August 2015 |
| Productive Gas Wells: | 1 as of February 1999 |
| Abandoned Wells: | 16 |
| Cumulative Oil: | 445,975.24 bbls as of August 2015 |
| Cumulative Gas: | 118,395.00 mcf as of February 1999 |
Producing Formation:MORROWAN |
MORROWAN (Upper Kearny Member) |
| Produces Gas: | Yes |
Producing Formation:VIOLA |
| Geological Age: | Ordovician |
| Depositional Environment: | Unknown, but probably peritidal |
| Formation Lithology: | Sucrosic dolomite porosity is believed to occur due to karst processes and fracturing; no cores are available for study. There is very poor correspondence between log (gamma ray/porosity) response and cuttings. |
| Formation Geometry: | Density log porosity is most readily mapped along NW-SE trends, sub-parallel to the axis of the structural nose. The structural closure is poorly defined to the northwest, and is not critical to the oil accumulation. It is certainly reasonable to assume that natural fractures are critical to this accumulation, and they are related to the fold axis. Porosity distribution is less-clearly related to, but obviously enhanced by fractures. There is some minor evidence from cuttings to suggest that karst processes enhanced porosity development on and near the Viola exposure surface. |
| Trap Type: | Fracture distribution on structural nose |
VIOLA (Viola Limestone Formation) |
| Produces Oil: | Yes | Produces Gas: | Yes |
| Maximum Net Pay: | 14 feet | Average Net Pay: | 9 feet |
| Oil Water Contact: | 4336 subsea in section 17. All other wells unique. |
| Gas Oil Ratio: | 500:1 in discovery well; Gas declined sharply in the first few weeks of production. | Drive Mechanism: | Combination water drive and solution gas expansion; abandoned wells water-out. |
| Initial Pressure: | 2391 | Data Source of Initial Pressure: | KOGF, Vol. V - Sharp decline early in production |
| Estimated Ultimate Recovery: | 750,000 BO |
| Estimated Primary Oil Recovery: | 750000 | Estimated Ultimate Recovery: | 750,000 BO |
| Proven Production: | 560 acres | Production Well Spacing: | 40 acres |
VIOLA (Viola Limestone Formation) |
| Oil Color: | Black % |
| Minimum Oil API Gravity: | 37 | Maximum Oil API Gravity: | 43 % |
VIOLA (Viola Limestone Formation) |
| Porosity Type: | Sucrosic | Maximum Porosity: | 26 % | Average Porosity: | 12 % |
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