Dutton and others, 2003								Data Set 22
Reference:  Dutton, S.P., W.A. Flanders and M.D. Barton, 2003, Reservoir characterization of a Permian deep-water sandstone, East Ford field, Delaware basin, Texas: American Association of Petroleum Geologists Bulletin, v. 87, n. 4, p. 609-627.
Author's affiliation:  Bureau of Economic Geology at University of Texas, Transpetco Engineering, and Shell Exploration and Production Inc.
Age:  Late Permian (Guadalupian)
Formation:  Ramsey sandstone, Bell Canyon Formation, Delaware Mountain Group
Location:  East Ford unit, Delaware Basin, Reeves County, west Texas
Wells:   12 cored wells distributed throughout field that is 2.5 miles north-south and less than 1.0 mile east-west
Depth range: 2705-2804 feet.  The Ramsey 1 sandstone underlies the Ramsey 2 sandstone (Fig. 9 of reference).
Lithology:  “well-sorted, very fine-grained arkoses” (based upon samples from one well; other cores were destroyed and hence not available for study.)
Depositional environment:  “channel-levee system with attached lobes and overbank splays”
Alteration:  “Cements constitute between 1 and 31% of the sandstone volume, with calcite and chlorite being the most abundant.  Calcite cement has an average volume of 7% and ranges from 0 to 30%.  Chlorite (average=1%) forms rims around detrital grains, extending into pores and pore throats.” “Volume of calcite cement is the dominant control on porosity and permeability.  In samples having less than 10% calcite cement, average porosity is 22.5%, and average permeability is 46 md.  Sandstones having more than 10% calcite cement have an average porosity of 11.5% and average permeability of 3 md.”
Production:  oil
Core measurement conditions:  conventional core analysis
Data entry:  digital file from senior author.