Products

5 ¼” X-Series

The “x” means extra flexible and reflects an extensive operational capability in terms of drilling parameters and well curvature.

With its 5 ¼” OD, this tool provides for greatly improved capabilities in combination with 6 to 7 ½” drill-bits and even larger under-reamers. The tool has a torsional capacity about double that of a 4 ¾” OD tool. The stroke capacity of 10” or 0.25m gives the tool a working range that makes it an optimal solution for high load performance-drilling. Tomax can provide an adequate overshot with the tool for use in 6 and 6 ¼” hole sizes.

The pressure loss through the tool is 150 psi at 350 GPM or 10 bar at 1300 lpm.

Parametermetricimperial
Length5.64 m18.49 ft
Max. OD133 mm5.25”
Min. ID35mm1.38”
Connection topNC 38 boxNC 38 box
Connection bottomNC 38 pinNC 38 pin
The 5 ¼” X-Series AST has High Torque (HT 38) connections as an option. Based on its torsional capacity and ability to predictably absorb peak loads the tool can provide a great safety improvement when used as a torsional buffer to protect less capable connections further down in the BHA.

models

4 ¾” X-Series

The “X” means extra flexible and the 4 ¾” OD tool has a comprehensive service history from both multi-lateral producers and exploratory work. The 4 […]

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5 ¼” X-Series

The “x” means extra flexible and reflects an extensive operational capability in terms of drilling parameters and well curvature. With its 5 ¼” OD, this tool […]

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6 ¾” X-Series

The “X” means extra flexible and reflects an extensive operational capability in terms of drilling parameters and well curvature. This tool is the most used […]

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7’’ C-Series AST

The “C” means combi and reflects an extensive capability in terms of both radius of turn and lateral reach. This tool is the latest addition […]

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8 ¼” X-Series

The “X” means extra flexible and reflects an extensive operational capability in terms of drilling parameters and well curvature. With its 8 ¼” OD, the tool […]

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9 ½” X-Series AST

The “X” means extra flexible and reflects an extensive operational capability in terms of drilling parameters and well curvature. This is the largest OD tool […]

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TT-series AST

The TT (Thru Tubing) Series AST has been in service since 2006 and is aimed at eliminating motor stalls as well as reducing drilling vibrations […]

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