PRESSURE/TEMPERATURE LOGGING FOR HIGH TEMPERATURE WELLS TECHNOLOGY TRANSFER OPPORTUNITY In accordance with technology transfer legislation and the growing emphasis for national laboratories to help provide technology support directly to the private sector, Sandia National Laboratories desires to make available for commercialization one of its pressure and temperature logging tools. This tool is a dewared memory tool for measuring borehole temperature and pressure inside geothermal wells. It was designed to be compact and inexpensive. The tool, with dewar, is 6 ft. long with a 2 in. OD. The tool, along with needed support equipment, can be flown via commercial aircraft as carry-on luggage. The tool is inexpensive to reproduce as it is composed of mostly readily available second-party components. One of those components is a commercially available microprocessor board with 500K RAM and built in Basic. This amount of RAM gives the tool greater than 12,000 data point storage for temperature, pressure, and internal parameters. The Basic programming language provides very flexible programming options, letting the end customer customize the tool for their particular application. A complete set of software routines and depth encoding hardware is provided with the tool. The software operates within Windows 3.1 and above on the IBM PC. The Sandia tool has been calibrated to absolute temperature readings within plus/minus 0.003 deg.C. The present pressure transducer has been calibrated to plus/minus 0.1 PSI with relative pressure reading within plus/minus 0.01 PSI. Sandia is continuing to work with industry to better understand the well borehole conditions from data collected using these high resolution sensors. Sandia is making the high temperature pressure/temperature technology available to companies interested in partnering with Sandia to provide low cost pressure/temperature logging to the geothermal industry. Sandia will supply interested respondents with a paper describing the tool and demonstration software. To receive this, please respond by mail or fax to Joanne Trujillo no later than August 20, 1996 at: Sandia National Laboratories, MS 1380, P.O. Box 5800, Albuquerque, New Mexico 87185-1380. Fax (505) 843-4175.

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