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Title: Vale exploratory slimhole: Drilling and testing

Abstract

During April-May, 1995, Sandia National Laboratories, in cooperation with Trans-Pacific Geothermal Corporation, drilled a 5825{prime} exploratory slimhole (3.85 in. diameter) in the Vale Known Geothermal Resource Area (KGRA) near Vale, Oregon. This well was part of Sandia`s program to evaluate slimholes as a geothermal exploration tool. During drilling we performed several temperature logs, and after drilling was complete we performed injection tests, bailing from a zone isolated by a packer, and repeated temperature logs. In addition to these measurements, the well`s data set includes: 2714{prime} of continuous core (with detailed log); daily drilling reports from Sandia and from drilling contractor personnel; daily drilling fluid records; numerous temperature logs; pressure shut-in data from injection tests; and comparative data from other wells drilled in the Vale KGRA. This report contains: (1) a narrative account of the drilling and testing, (2) a description of equipment used, (3) a brief geologic description of the formation drilled, (4) a summary and preliminary interpretation of the data, and (5) recommendations for future work.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
255020
Report Number(s):
SAND-96-1396
ON: DE96012438; TRN: 96:004029
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jun 1996
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; EXPLORATORY WELLS; WELL DRILLING; GEOTHERMAL EXPLORATION; GEOTHERMAL WELLS; DRILLING EQUIPMENT; Geothermal Legacy

Citation Formats

Finger, J. T., Jacobson, R. D., and Hickox, C. E. Vale exploratory slimhole: Drilling and testing. United States: N. p., 1996. Web. doi:10.2172/255020.
Finger, J. T., Jacobson, R. D., & Hickox, C. E. Vale exploratory slimhole: Drilling and testing. United States. https://doi.org/10.2172/255020
Finger, J. T., Jacobson, R. D., and Hickox, C. E. 1996. "Vale exploratory slimhole: Drilling and testing". United States. https://doi.org/10.2172/255020. https://www.osti.gov/servlets/purl/255020.
@article{osti_255020,
title = {Vale exploratory slimhole: Drilling and testing},
author = {Finger, J. T. and Jacobson, R. D. and Hickox, C. E.},
abstractNote = {During April-May, 1995, Sandia National Laboratories, in cooperation with Trans-Pacific Geothermal Corporation, drilled a 5825{prime} exploratory slimhole (3.85 in. diameter) in the Vale Known Geothermal Resource Area (KGRA) near Vale, Oregon. This well was part of Sandia`s program to evaluate slimholes as a geothermal exploration tool. During drilling we performed several temperature logs, and after drilling was complete we performed injection tests, bailing from a zone isolated by a packer, and repeated temperature logs. In addition to these measurements, the well`s data set includes: 2714{prime} of continuous core (with detailed log); daily drilling reports from Sandia and from drilling contractor personnel; daily drilling fluid records; numerous temperature logs; pressure shut-in data from injection tests; and comparative data from other wells drilled in the Vale KGRA. This report contains: (1) a narrative account of the drilling and testing, (2) a description of equipment used, (3) a brief geologic description of the formation drilled, (4) a summary and preliminary interpretation of the data, and (5) recommendations for future work.},
doi = {10.2172/255020},
url = {https://www.osti.gov/biblio/255020}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jun 01 00:00:00 EDT 1996},
month = {Sat Jun 01 00:00:00 EDT 1996}
}