850 Subsurface Geologic Methods 



Enclosures should consist of a combined graphic, electric, and drill- 

 time log, including all pertinent stratigraphic, paleontologic, and operating 

 data, a chronologic chart, a correlation chart, and a map showing the well 

 location with reference to local and regional geologic conditions. Any 

 other information relating to the drilling and completion of the well should 

 be presented. ^ 



Report on Oil Field 



Hawkins Field, Wood County, Texas ^° 



E. A. WENDLANT, T. H. SHELBY, JR., AND J. S. BELL, HUMBLE OIL AND REFINING COMPANY 



Abstract 



Introduction 



Location 



Topography and drainage 



History 



Stratigraphy 



Structure 



Surface 



Subsurface 

 Prospects for deeper production 

 Relation of accumulation to structure 

 Reservoir characteristics 

 Production 



Crude-oil characteristics 

 Production statistics 

 Plants and pipe-line outlets 

 Figure 1. Index map. 



Figure 2. Surface geology and structure map. 

 Figure 3. Core-test map ; contoured on top of Cretaceous. 

 Figure 4. Isopach map showing effective Woodbine oil-sand thickness. 

 Figure 5. Isopach map showing effective Woodbine gas-sand thickness. 

 Figure 6. Isobaric map. 



Oregon Basin Field, Park County, Wyoming" 

 paul t. walton, pacific western oil corporation 

 Abstract 

 Introduction 

 History 

 Stratigraphy 



Surface formations 



Subsurface formations 

 Structure 



Surface 



Subsurface 

 Relation of structure to accumulation 

 Producing formations 

 Production 



Drilling methods 



Completion practice 



Crude-oil characteristics 



Production curves 



Pipe lines and outlets 



Future development 

 Figure 1. Index map, Big Horn Basin, Wyoming. 



Figure 2. Map of Big Horn Basin showing location of Oregon Basin field. 

 Figures. Oregon Basin oil field (air photograph). 

 Figure 4. Composite lithologic and electric log. 



"Am. Assoc. Petroleum Geologists Bull., vol. 30, no. 11, pp. 1830-56. Nov. 1946. 

 " Am. Assoc. Petroleum Geologists Bull., vol. 31, no. 8, pp. 1431-58, Aug. 1947. 



