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Rotates the end of the casing without having to turn the whole string from surface. The NaviGATOR™ Sub can make the difference to orientating the end of the string from below when rotation cannot be driven from above.
The Caledus NaviGATOR™ Sub is a casing based tool, run as an accessory, which ratchets and turns round the end of a casing or liner string by simply reciprocating the pipe. Each time the end of the string is picked up and set down again the end of the Navigator rotates around a number of degrees to the right, between 60 and 90 degrees depending on tool size. This means that 4 or 6 reciprocations will turn the device through a full rotation.
A casing reamer shoe (Caledus BridgeBUSTER®) or guide shoe (Caledus SlickSHOE™) with an eccentric profiled nose, or similar third party device, can be placed below the NaviGATOR™ so that the relative rotational motion from reciprocation can be used to orientate the nose over or past obstructions. The NaviGATOR™ Sub is a particularly useful tool if the casing or liner cannot be rotated for good reason whilst running in the hole. The tool can be used on cemented or uncemented casing strings and liners as well as stand-alone or gravel-packed sand control screens.
To avoid pulling the casing, liner or screens and having to perform a wiper trip the NaviGATOR™ Sub can be used to gain vital rotation at the end of the string to get to TD (Total Depth).
• Available in most standard casing/liner versus open-hole combinations.
• Drill-out ID match’s casing being run, no parts to drill inside tool.
• Flow-by areas have been maximised for circulation and cementation.
• Strength to suit casing specifications.
• Supplied with customer specified casing connections.
• Simple to install and use, no operator required.
|Model Number NV095-00|
|Outer Diameter (nominal)||10.750||inches|
|Inner Diameter (nominal)||8.563||inches|
|Inner Diameter (drift)||8.500||inches|
|Upper/Lower Connection size||9.625||inches|
|Upper/Lower Connection Weight||40 - 47||pounds per foot|
|Upper/Lower Connection Thread||As per Customer Requirements|
|Tool Weight (approx)||600||lbs|
|Material Minimum Yield||110,000||psi|
|Internal Pressure (burst)||5,000||psi|
|External Pressure (collapse)||5,000||psi|
|Down-hole Temperature (max)||200||°F|
For detailed info on the product or service, including its price and delivery terms, drop us a line in English or Russian at email@example.com or call at 007-495-542-0468 (English, Russian).