Hulin Geopressure-geothermal test well: First order levels

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Description

The purpose of this survey was to level through and establish elevations for existing benchmarks along LA Highway No. 685 from Erath, Louisiana south to the well site. The leveling was performed in April 1991, and was accomplished using procedures and equipment identical to that used by the National Geodetic Survey for First Order Class I Leveling. The leveling began on benchmark NGS T-361 located in Erath, Louisiana and the published elevation of 5.271 feet was used for this survey. On this survey a new benchmark, HU-18 was set on a concrete slab in the well site to observe the ... continued below

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Creator: Unknown. April 1, 1991.

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Description

The purpose of this survey was to level through and establish elevations for existing benchmarks along LA Highway No. 685 from Erath, Louisiana south to the well site. The leveling was performed in April 1991, and was accomplished using procedures and equipment identical to that used by the National Geodetic Survey for First Order Class I Leveling. The leveling began on benchmark NGS T-361 located in Erath, Louisiana and the published elevation of 5.271 feet was used for this survey. On this survey a new benchmark, HU-18 was set on a concrete slab in the well site to observe the subsidence of the ground surface. Also, benchmark No.8 could not be found. A two hour search was made with no results. At this leveling it was noted that an error was made. A metric D.E. was used for the well head elevation instead of feet. This error has been corrected in this report.

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  • Report No.: None
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 898072
  • Archival Resource Key: ark:/67531/metadc888817

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • April 1, 1991

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 29, 2016, 12:58 p.m.

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Hulin Geopressure-geothermal test well: First order levels, report, April 1, 1991; United States. (digital.library.unt.edu/ark:/67531/metadc888817/: accessed May 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.