Decreasing geothermal energy conversion costs with advanced materials

Conference · Tue Mar 01 04:00:00 EST 1988

OSTI ID:7102768

Kukacka, L E

If the Geothermal Technology Division (GTD) is to meet its programmatic objectives in hydrothermal fluid production and energy conversion, it is essential that new materials of construction be available. Level III Program Objectives include (1) reducing the costs associated with lost circulation episodes by 30% by 1992, (2) reducing the costs of deep wells and directionally dried wells by 10% by 1992, (3) reducing well-cementing problems for typical hydrothermal wells by 20% by 1991, and (4) the development of a corrosion-resistant and low-fouling heat exchanger tube material costing no more than three times the cost of carbon steel tubes by 1991. The Brookhaven National Laboratory (BNL) materials program is focused on meeting these objectives. Currently, work is in progress on (1) high temperature chemical systems for lost circulation control, (2) advanced high temperature (300/sup 0/C), lightweight (approx. 1.1 g/cc), CO/sub 2/-resistant well cementing materials, (3) thermally conductive composites for heat exchanger tubing, and (4) ultra high temperature (600/sup 0/C) cements for magma wells. In addition, high temperature elastomer technology developed earlier in the program is being transferred for use in the Geothermal Drilling Organization programs on drill pipe protectors, rotating head seals, and blow-out preventors. Recent accomplishments and the current status of work in each subtask are summarized in the paper.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 7102768
• Report Number(s): BNL-41162; CONF-880477-6; ON: DE88012135
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
CONSTRUCTION
DESIGN
GEOTHERMAL POWER PLANTS
GEOTHERMAL WELLS
Geothermal Legacy
HEAT EXCHANGERS
MATERIALS
POWER PLANTS
THERMAL POWER PLANTS
WELLS