Plays: Lansing (Missourian), Marmaton (Upper Desmoinesian), and St. Louis (Lower Mississippian) Basin: Anadarko County: Finney County Terry Field--General Information--Detailed Data

Field Name: Amazon Ditch

Producing Formations:

Kansas City Group

Farley

Dewey

Marmaton Group

Lenepah

Altamont

Pawnee

Mississippian

St. Louis "A" Zone

Discovery Date: 07/05/61
Operator: Horizon Oil
Wellname: #1 Barrett
Geological Setting: Hugoton Embayment of Anadarko Basin
Surface Formation: Quaternary Pleistocene Undifferentiated Loess
Discovery Method: Coredrill to Stone Corral Anhydrite and Single Point Seismic
Trap Type: Structural

Reservoir Parameters:

Kansas City Group, carbonate, 10 to 25 ft.

Marmaton Group, carbonate, 10 to 25 ft.

Mississippian, carbonate, 0 to 15 ft.

Reservoir Geometry:

Kansas City Group, subtidal upward coarsening carbonate shoal

Marmaton Group, subtidal upward coarsening carbonate shoal

Mississippian, subtidal nearshore oolite shoal

Oldest Horizon Penetrated: Mississippian (Spergen)
Proven Productive Area: 1,440 acres
Approved Spacing: 40 acres

	Net Pay		Porosity		Permeability (air)
Unit	Maximum	Average	Maximum	Average	Maximum	Minimum
Kansas City Group	15 ft.	8 ft.	27%	16%	12,100 Kmd	0 Kmd
Marmaton Group	10 ft.	8 ft.	26%	18%	94 Kmd	17 Kmd
Mississippian	12 ft.	6 ft.	18%	14%	2,400 Kmd	11 Kmd

	Kansas City Group	Marmaton Group	Mississippian
Water Saturation	Unknown	Unknown	Unknown
Initial Field Pressure	Unknown	Unknown	Unknown
Temperature	Unknown	Unknown	Unknown
Drive Mechanism	Unknown	Unknown	Unknown

Produced Fluid Contacts:

Kansas City Group

• Farley - Oil/Water (-920)
• Dewey - Oil/Water (-1012)

Marmaton Group

• Lenepah
• Altamont
• Pawnee

Mississippian

• St Louis "A" Zone

	Kansas City Group	Marmaton Group	Mississippian
Oil Analysis	Unknown	Unknown	Unknown
Gas Analysis	Unknown	Unknown	Unknown
Water Analysis	Unknown	Unknown	Unknown
EUR Primary	Unknown	Unknown	Unknown
EUR Secondary	Unknown	Unknown	Unknown

Logging Practice:

Dual Induction - SFL, Spontaneous Potential, Gamma Ray

Compensated Neuton, LithoDensity

BHC Sonic

MicroLog

Drilling-Casing Practice:

Conductor Casing: None

Surface Casing: 8 5/8"-24# @ 2000' with 550 sxs 65/35 Poxmix + 2% cacl

Production Casing: 5 1/2"-14# @ RTD with 250 sxs 65/35 Pozmix + 18%nacl + 6% gel + 2% cacl

Drilling Fluid Practice:

Water based gel to displacement point at 3600 ft.

Chemical Gel to rotary total depth

Treatment Practice:(commonly commingle Kansas City Group and Marmaton Group)

Kansas City Group, 4 Shots/ft., 500 gals. 10% Acetic Acid

Marmaton Group, 4 Shots/ft., 2000 gals. 15% HCL-FE

Mississippian, 4 Shots/ft., 1200 gals. 7.5% HCL-FE

Published References Use the KGS Online Bibliography