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Top-hole instability

Top-hole instability can threaten the integrity of the entire well structure. The top-hole section is the structure that the rest of the well relies on. In areas with challenging top-hole conditions, such as unconsolidated sands, it makes sense to commence drilling the top-hole with engineered, weighted fluid as you would for the down-hole sections of a well. However, there are environmental issues to consider. The RMR® (Riserless Mud Recovery) system enables the use of engineered fluid even in environmentally sensitive areas thanks to its closed-loop design.


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Find out more about RMR® and how it solves top-hole instability issues

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