Laboratory evaluation of polyurethane foam for geothermal lost-circulation plugging

Technical Report · Wed Mar 31 23:00:00 EST 1982

DOI:https://doi.org/10.2172/5294335· OSTI ID:5294335

Tschoepe, E III

To evaluate polyurethane foam formulations for use in plugging hot (such as geothermal) formations when lost circulation is encountered during drilling, laboratory tests of three foams were performed. Foams were mixed at high temperature (up to 300/sup 0/F) and high pressure (up to 900 psig); the mechanical and fluid loss properties of the foams were subsequently determined. The results show that polyurethane foams can be mixed at downhole conditions and yield acceptable plugging properties.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5294335
• Report Number(s): SAND-81-7227; ON: DE82015516
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150901* -- Geothermal Engineering-- Drilling Technology & Well Hardware
COLLOIDS
DISPERSIONS
DRILLING
FOAMS
GEOTHERMAL WELLS
Geothermal Legacy
LOST CIRCULATION
MATERIALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASTICS
PLUGGING
POLYAMIDES
POLYMERS
SYNTHETIC MATERIALS
WELLS