Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/21044

Preliminary Report on the Location of Producing Layers of Geothermal Well HGP-A, Puna, Hawaii

File SizeFormat 
PrelimReportLocProducingLayers.PDF1.58 MBAdobe PDFView/Open

Item Summary

Title: Preliminary Report on the Location of Producing Layers of Geothermal Well HGP-A, Puna, Hawaii
Authors: Kitamura, Ellen
Keywords: HGP-A
production
steam
brine
Issue Date: 1980
Publisher: Energy Extension Service
Citation: Kitamura E. 1980. Preliminary report on the location of producing layers of geothermal well HGP-A, Puna, Hawaii. Honolulu (HI): Energy Extension Service.
Abstract: Geothermal well HGP-A is located on the active east rift zone of Kilauea Volcano on the island of Hawaii. It is presently the only producing geothermal well in the islands, and numerous tests have been performed on the well in an effort to obtain a better understanding of Hawaiian geothermal systems.

This paper considers various data gathered from these tests in an effort to determine the possible location of producing layers of HGP-A. Temperature recovery profiles, drilling mud losses, flow meter tests, and pressure profiles from HGP-A are analyzed. And since these data on HGP-A are limited, research done on other geothermal wells around the world displaying similar characteristics as HGP-A have been used to interpret some of the data but only to describe the general characteristics of a geothermal well.

All data, examined first by type and then collectively, indicate the following about the location of the producing zones of HGP-A and the permeabilities associated with these regions:
- strata between 4300 - 4500 feet and 6000 feet to bottomhole appear to be major producing layers;
- secondary production appears to occur between 4600 - 5900 feet, an area of alternating permeable and impermeable layers.

In other words, the region about 4500 feet seems to mark the upper boundary of an active hydrothermal convection system, and permeable zones below 4500 feet may be producing regions.
Sponsor: Jointly funded by Bernice Pauahi Bishop Estate and the Hawaii Natural Energy Institute.
Pages/Duration: 28 p.
URI/DOI: http://hdl.handle.net/10125/21044
Appears in Collections:HNEI Engineering Reports
The Geothermal Collection



Items in ScholarSpace are protected by copyright, with all rights reserved, unless otherwise indicated.