Collapsible Crate (open access)

Collapsible Crate

Patent for a collapsible crate. Illustration included.
Date: December 1, 1903
Creator: Orr, William H.
Object Type: Patent
System: The Portal to Texas History
Testing geopressured geothermal reservoirs in existing wells: Pauline Kraft Well No. 1, Nueces County, Texas. Final report (open access)

Testing geopressured geothermal reservoirs in existing wells: Pauline Kraft Well No. 1, Nueces County, Texas. Final report

The Pauline Kraft Well No. 1 was originally drilled to a depth of 13,001 feet and abandoned as a dry hole. The well was re-entered in an effort to obtain a source of GEO/sup 2/ energy for a proposed gasohol manufacturing plant. The well was tested through a 5-inch by 2-3/8 inch annulus. The geological section tested was the Frio-Anderson sand of Mid-Oligocene age. The interval tested was from 12,750 to 12,860 feet. A saltwater disposal well was drilled on the site and completed in a Micocene sand section. The disposal interval was perforated from 4710 to 4770 feet and from 4500 to 4542 feet. The test well failed to produce water at substantial rates. Initial production was 34 BWPD. A large acid stimulation treatment increased productivity to 132 BWPD, which was still far from an acceptable rate. During the acid treatment, a failure of the 5-inch production casing occurred. The poor production rates are attributed to a reservoir with very low permeability and possible formation damage. The casing failure is related to increased tensile strain resulting from cooling of the casing by acid and from the high surface injection pressure. The location of the casing failure is now known …
Date: January 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Locomotive-Headlight (open access)

Locomotive-Headlight

Patent for a locomotive headlight in which its illuminating lights are placed directly ahead by a means of better support.
Date: July 1, 1919
Creator: Moody, Calvin D.
Object Type: Patent
System: The Portal to Texas History
Spring-Bottom Camp-Bed (open access)

Spring-Bottom Camp-Bed

Patent for an improved, less expensive, and easier to use camp bed granted to William Green Holden.
Date: April 1, 1884
Creator: Holden, William Green
Object Type: Patent
System: The Portal to Texas History
Electric Signal (open access)

Electric Signal

Patent for an alarm device to indicate overheating of an internal combustion engine.
Date: June 1, 1915
Creator: Lièvre, Joseph
Object Type: Patent
System: The Portal to Texas History