HI TOOL® prolongs BHA life to achieve first shoe to shoe 12 ¼” section in Sicily

Well Construction

Customer challenges

Our customer required a solution to reduce vibrations during drilling in order to minimize down hole tool (DHT) failure and the resulting need to execute multiple runs to drill a 12 ¼” section
Expro’s HI TOOL (Harmonic Isolation Tool) was run above the measuring/logging while drilling (M/ LWD) suite of tools
The main goal was to prevent vibrations from travelling from the string down into the lower part of the bottom hole assembly (BHA); the HI TOOL® actively decoupled string harmonics through its flexible geared connection and mitigated lateral and axial vibration generated by the drillstring from the lower assembly where the M/LWD and RSS package was located
The RSS and bit were therefore allowed to dynamically self-centre and drive the hybrid drill bit efficiently, while protecting valuable downhole equipment from premature failure

Expro Excellence

Our HI TOOL® delivered its objective by protecting the MWD/LWD/DD tools from shocks and vibration, including stick slip, as seen from the log. This in turn led to minimized bit-whirl and supported prolonged bit life
The logs show that only minimal shock levels were reported during the entire 12 ¼” section, consisting of clay, sandstone, shale, limestone and chert
The HI TOOL® helped provide an effective method of control shock and vibration during the drilling of interbedded formations which are typically prone to major vibration issues, while achieving an unprecedented shoe-shoe run at a high rate of penetration

Value to client

Improved wellbore quality due to greatly reduced vibration energy impacting on the wellbore
Significant improvement in ROP from the best offset in the field. This is first time the section was drilled shoe-to-shoe; significant reduction in section completion time
Reduction of shock and vibration – we were able to make significant improvements compared to offsets of axial and lateral shocks with very low orders of stick-slip, resulting in prolonged life span of the bits’ cutting structure
Expro’s HI TOOL® placed above the M/LWD suite isolated the lower BHA allowing for smooth running, which aided in maintaining wellbore verticality

Customer challenges

Our customer required a solution to reduce vibrations during drilling in order to minimize down hole tool (DHT) failure and the resulting need to execute multiple runs to drill a 12 ¼” section
Expro’s HI TOOL (Harmonic Isolation Tool) was run above the measuring/logging while drilling (M/ LWD) suite of tools
The main goal was to prevent vibrations from travelling from the string down into the lower part of the bottom hole assembly (BHA); the HI TOOL® actively decoupled string harmonics through its flexible geared connection and mitigated lateral and axial vibration generated by the drillstring from the lower assembly where the M/LWD and RSS package was located
The RSS and bit were therefore allowed to dynamically self-centre and drive the hybrid drill bit efficiently, while protecting valuable downhole equipment from premature failure

Expro Excellence

Our HI TOOL® delivered its objective by protecting the MWD/LWD/DD tools from shocks and vibration, including stick slip, as seen from the log. This in turn led to minimized bit-whirl and supported prolonged bit life
The logs show that only minimal shock levels were reported during the entire 12 ¼” section, consisting of clay, sandstone, shale, limestone and chert
The HI TOOL® helped provide an effective method of control shock and vibration during the drilling of interbedded formations which are typically prone to major vibration issues, while achieving an unprecedented shoe-shoe run at a high rate of penetration

Value to client

Improved wellbore quality due to greatly reduced vibration energy impacting on the wellbore
Significant improvement in ROP from the best offset in the field. This is first time the section was drilled shoe-to-shoe; significant reduction in section completion time
Reduction of shock and vibration – we were able to make significant improvements compared to offsets of axial and lateral shocks with very low orders of stick-slip, resulting in prolonged life span of the bits’ cutting structure
Expro’s HI TOOL® placed above the M/LWD suite isolated the lower BHA allowing for smooth running, which aided in maintaining wellbore verticality

Contact

For further information, please contact: