RAC-10 is a 1-11/16", 5-Arm roller centralizer designed specifically for cased-hole operation. The 5-arm configuration lends itself to better centralization in the borehole which makes this centralizer ideal to maintain logging tools accurately centred in vertical, deviated, or fully horizontal wells. The RAC-10 can be built with standard GO, or reverse-GO (for ex. Sondex) ends. The centralizer collapses completely to 1-11/16" diameter to allow it to go through downhole restrictions. The wheels and axles are hardened for longer service life.  

RAC-11 is a 1-11/16", 5-Arm roller centralizer. This centralizer has feed-through wiring to be used with the DSS HSR-10 cement bond tool. The RAC-11 can be installed in the tool field joint between the Sonde and the GR/CCL section to provide superior centralization even in highly deviated or completely horizontal wells. The 5-arm configuration lends itself to better centralization in the borehole, which is essential for accurate and repeatable cement bond measurements. The centralizer collapses completely to 1-11/16" diameter to allow it to go through downhole restrictions. The wheels and axles are hardened for longer service life.

RAC-20 is a 2-3/4", 5-Arm roller centralizer designed specifically for cased-hole operation. The 5-arm configuration lends itself to better centralization in the borehole which makes this centralizer ideal to maintain logging tools accurately centred in vertical, deviated, or fully horizontal wells. The RAC-20 can be built with standard GO, or reverse-GO (for ex. Sondex) ends. The centralizer collapses completely to 2-3/4" diameter to allow it to go through downhole restrictions. The wheels and axles are hardened for longer service life.

RAC-21 is a 2-3/4″, 5-Arm roller centralizer. This centralizer has feed-through wiring to be used with the DSS HSR-20 cement bond tool. The RAC-21 can be installed in the tool field joint between the Sonde and the GR/CCL section to provide superior centralization even in highly deviated or completely horizontal wells. The 5-arm configuration lends itself to better centralization in the borehole, which is essential for accurate and repeatable cement bond measurements. The centralizer collapses completely to 2-3/4″ diameter to allow it to go through downhole restrictions. The wheels and axles are hardened for longer service life.

RAC-30 is a 3-1/2", 5-Arm roller centralizer designed specifically for cased-hole operation. The 5-arm configuration lends itself to better centralization in the borehole which makes this centralizer ideal to maintain logging tools accurately centred in vertical, deviated, or fully horizontal wells. The RAC-20 can be built with standard GO, or reverse-GO (for ex. Sondex) ends. The centralizer collapses completely to 3-1/2" diameter to allow it to go through downhole restrictions. This centralizer can also be equipped with an optional extension kit to make it work in large casings (up to 20"). The wheels and axles are hardened for longer service life.

RAC-31 is a 3-1/2″, 5-Arm roller centralizer. This centralizer has feed-through wiring to be used with the DSS HSR-30 or HSR-35 cement bond tool. The RAC-31 can be installed in the tool field joint between the Sonde and the GR/CCL section to provide superior centralization even in highly deviated or completely horizontal wells. The 5-arm configuration lends itself to better centralization in the borehole, which is essential for accurate and repeatable cement bond measurements. This centralizer can be equipped with an optional extension kit to make it work in large casings (up to 20"). The wheels and axles are hardened for longer service life.