Hulin Geopressure-geothermal test well: First order levels
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.
- Research Organization:
- T&R Associates, Asheboro, NC
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 898072
- Country of Publication:
- United States
- Language:
- English
Similar Records
Subsidence measurements around geopressured-geothermal test sites in southwestern Louisiana
Session 12: Land Subsidence and Microseismicity Associated with Geopressured-Geothermal Fluid Production