The Expro HI TOOL® (Harmonic Isolation Tool) was deployed in a development application while drilling a directional section building from 0º up to 82º while maintaining constant parameters, and to minimize corrective actions by the BHA which would lead to smooth running of the 9 5/8” casing afterward. The BHA was a rotary steerable (RSS) from Baker Hughes; the placement of the HI TOOL® was such that it was minimized the harmonics coming down from the string into the top of the BHA preventing failure and thus additional trips. Typically, this section is drilled with 2-3 BHA runs
Placement of the HI TOOL® at the top most point of the BHA (#15) replacing what is normally an integral blade stabilizer; typically, Expro’s aim to replace an already planned stabilizer thus no disruption to the directional capabilities of the BHA. The top position of the HI TOOL® was optimal as most of the damaging harmonics were string generated
- In this section, with the HI TOOL® at the top of the BHA we achieved extremely steady parameters (MSE) and completed the section in one run, with very good RoP. The bit came out in re-runnable condition (1,2,WT,A,In,TD)
- Single section in one run
- Lateral vibes in green all the way (level 1-2)
- Improved ROP with constant parameters
Improved MSE efficiency of the BHA
