Play: Viola Oil and Gas Basin: Anadarko County: Comanche County Box Ranch Field--General Information You can explore the Box Ranch Field by clicking on the blue topic buttons to the left. Use the Field Site Map to learn what resources are available for the Box Ranch Field.

Summary of Field Data

Producing Formations:

Mississippian Meramecian

Ordovician Viola

Discovery Date:

Mississippian Meramecian, 04/14/88

Ordovician Viola, 04/14/88

Operator of Discovery Well:

Mississippian Meramecian, Roberts & Murphy

Ordovician Viola, Roberts & Murphy

Trap Type:

Mississippian Meramecian: Structural

Ordovician Viola: Structural

Reservoir Parameters (lithology, thickness):

Mississippian Chesteran, carbonate, 10 to 50 Ft.

Ordovician Viola, carbonate, 10 to 50 Ft.

Reservoir Geometry:

Mississippian Meramecian, cyclic peritidal-subtidal carbonate

Ordovician Viola, cyclic peritidal-subtidal carbonate

Net Pay (max/ave):

Mississippian Meramecian, 50 Ft. / 25 Ft.

Ordovician Viola, 50 Ft. / 25 Ft.

Porosity (max/ave):

Mississippian Meramecian, 14% / 8%

Ordovician Viola, 22% / 14%

Permeability (max/ave):

Mississippian Meramecian, unknown

Ordovocian Viola, Unknown

Water Saturation (ave):

Mississippian Meramecian, 30%

Ordovician Viola, 30%

Initial Field Pressure (ave):

Mississippian Meramecian, 1915 psi

Ordovician Viola, 2475 psi

Temperature:

Mississippian Meramecian, 118 F

Ordovician Viola, 135 F

Drive Mechanism:

Mississippian Meramecian, gas expansion & poor water drive

Ordovician Viola, gas expansion and water drive

Produced Fluid Contacts:

Mississippian Meramecian, multiple

Ordovician Viola, (-4520) Subsea

Oil Analysis:

Mississippian Meramecian, Unknown

Ordovician Viola, Unknown

Gas Analysis:

Mississippian Meramecian, Unknown

Ordovician Viola, Unknown

Water Analysis:

Mississippian Meramecian, Unknown

Ordovician Viola, Unknown

EUR Primary:

Mississippian Meramecian, 30 MBO

Ordovician Viola, 1,250 MBO and 3.5 BCF

EUR Secondary:

Mississippian Meramecian, Unknown

Ordovician Viola, Unknown

Logging Practice:

Dual Induction, Compensated Neutron-Lithodensity, Compensated Sonic, SP, Gamma Ray, Caliper

Drilling-Casing Practice:

Surface Casing: 8.625 in set in 12.25 in. hole at 900 ft. with 250 sacks of Poz "C"

Production Casing: 5.5 in. set in 7.875 in. hole at RTD with 150 sacks of Poz "H"

Production Tubing: 2.875 in. landed 25 ft. off bottom

Drilling Fluid Practice:

Water based native gel to displacement point at 4200 ft.(Heebner Shale)

Chemical Gel to rotary total depth

Treatment Practice:

Mississippian Meramecian: acidize with 3000 to 12,000 gals. of 15% Fe HCL containing additives

Ordovician Viola: Natural