U.S. Geological Survey, 205B 12201 Sunrise Valley Drive, Reston, VA 20192

66 -- ADVANCED BOREHOLE IMAGING SYSTEM SOL 6655 POC Karen Phillips (703)648-7372 (contact) Susan Pimble (CO) 703-648-7358 Fax 703-648-7901 17. Request for Information. The U.S. Geological Survey is conducting a market search for firms that can provide (under a lease-with- option-to-buy) an advanced borehole imaging system (ABIS) for use in fractured rock studies. Lease will be through 9/30/98 with purchase pending availability of FY 99 funds. Components are 1) lightweight motor-driven remote-controlled winch with Kevlar cable approximately 300 meters in length (winch shall also be capable of being operated manually); 2) a control unit and a 640mb magnetic optical disk storage device; 3) a pulley/depth encoder that attaches to the well casing; 4) an imaging probe that has the capability of producing and digitally storing an oriented 360 degree side wall image; the probe will also have capability for upgrade to include a fish-eye image; 5) a software analysis package compatible with Windows 95 and capable of producing and plotting digital deviation files, calculating strike and dip of fractures corrected for borehole deviation, and presenting a virtual core image that can be rotated and oriented using at least two methods, i.e. flux gate magnetometer and compass. Essential physical characteristics: a) light source must enable the system to reproduce natural rock colors; b) image resolution: 0.25 mm vertical resolution, 720 pixels/circumference; c) diameter of probe must allow operation in a 56mm hole; d) built-in inclinometer to record borehole deviation for the automatic correction of hole deviation in data processing; e) ability to allow users to view data and calculate strike and dip of features; f) ability to integrate with Government-owned Mala Geoscience borehole radar system cable and winch and standard 44-conductor cable and winch (to allow ABIS to operate on same optical winch assembly as the borehole radar system). Firms that can provide the equipment described in this announcement are invited to submit literature describing available commercial equipment, warranty provisions and pricing. Information should be submitted to this officewithin 15 calendar days from the date of publication of this announcement to the above address. This is not an RFP. This announcement is only for the purpose of verifying available sources. Any questions should be addressed in writing to Ms. Susan Pimble at the address specified in this announcement or email to spimble@usgs.gov.***** MMMM (0072)

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