APPLICATIONS

The prevention of torsional vibrations or stick-slip is an essential aspect of the process of drilling exploration and production wells for oil and gas.

Through its patented Anti Stick-slip Tool (AST), Tomax provides a stable, safe drilling environment, free from stick-slip vibrations produced in the process of cutting through problematic underground formations. The suppression of stick-slip vibrations will also release energy for faster rates of penetration (ROP). As a result, the use of AST will always add significant value where the drilling operation faces risk from stick-slip vibrations.

Milling damaged pipe on coiled tubing

Milling collapsed pipe is difficult and in this case it was done deep down in an extended reach well. To be able to land and […]

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Reducing surface drilling torque in ERD well

The maximum drilling torque supplied from the Top Drive is defined by the highest peaks produced downhole. An AST can be used to reduce such […]

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Milling Production Packer on drill-pipe

A production packer was set in the wrong place and needed milling out from inside a new, high grade tubing. In order to safely mill […]

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Using AST for directional drilling with rig heave

Bad weather on floating drilling facilities can make the heave compensator struggle and the WOB becomes unstable. An AST can be used to improve on […]

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Drilling difficult sediments and hard chalk, offshore UK

Offeset data stated a minimum of two bit run was needed to reach TD in a Central North Sea well. By deploying an AST and […]

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Drilling with slim motor BHA from floating rig

Drilling a slim hole from a semi-submersible in rough seas was almost impossible due to inadequate load on the heave compensator system. AST was called […]

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Drilling three geological periods in one drill-bit run

Use of very aggressive PDC cutters, a RSS system with a mud motor and an AST produced a steady cut through hard limestone and repeatedly […]

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Drilling long HTHP multi-lateral wells

The AST principle provides a stabilized load on the bit in lateral and extended reach wells to prevent erratic reactive torque that would otherwise reduce […]

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Vibration challenges in top-hole drilling

Severe drilling vibrations in top-hole section created unacceptable noise and risk. An AST was implemented to solve the problem. Objectives Severe surface vibrations and noise […]

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Under-reaming a difficult, fractured formation

A troublesome formation known to lock-up the cutters and cause twist-offs was to be drilled with under-reamer. An AST was deployed to solve the problem. […]

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