Rhino XC Reamer and AxeBlade Bit Save 48 Hours and USD 240,000 in Tripping-Related Costs | Schlumberger
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Location
Gulf of Mexico, United States, North America, Offshore
Details

Challenge: Perform a hole-enlargement-while-drilling (HEWD) operation on a section of an offshore exploratory well that contains interbedded sand, salt, and shale formations.

Solution: Use a Rhino XC on-demand hydraulically actuated reamer and an AxeBlade ridged diamond element bit to complete the operation in a single trip.

Results: Achieved multiactivation and drilled to TD in a single run, saving 48 hours and USD 240,000 in tripping-related costs.

Products Used
Rhino XC On-Demand Hydraulically Expandable Reamer
AxeBlade Ridged Diamond Element Bit

Rhino XC Reamer and AxeBlade Bit Save 48 Hours and USD 240,000 in Tripping-Related Costs

PEMEX uses on-demand multiactivation reamer and ridged diamond element bit to maximize ROP and footage, Gulf of Mexico

Perform a HEWD operation through interbedded formations

PEMEX wanted to drill a 12 ¼-in hole while simultaneously enlarging it to 14 1/2 in for an offshore exploratory well. The section, from 4,028-m to 5,516-m MD [13,215-ft to 18,097-ft MD], was made up of interbedded sand, salt, and shale formations with an unconfined compressive strength (UCS) between 3,000  and 12,000 psi [20.7 and 82.7 MPa].

At approximately 4,800-m [15,744-ft] MD, PEMEX would decide whether to continue drilling or run the contingency 11 7/8-in liner. If PEMEX decided to continue drilling, it would require a reamer with the ability to activate multiple times. This would eliminate the extra trip required to replace the BHA.

Use the Rhino XC reamer and an AxeBlade bit for a single-run operation

By using the IDEAS integrated dynamic design and analysis platform, PEMEX was able to achieve optimized drilling BHA dynamics and determine bit, reamer, RSS, and measurement tool compatibility.

Graph - The AxeBlade bit drilled the footage at a high ROP.
The AxeBlade bit drilled the footage at a high ROP.

Well HOK-1 presented an excellent opportunity to demonstrate the successful and reliable activation and deactivation capabilities of the Rhino XC reamer. In addition, Schlumberger proposed that PEMEX use 13-mm Predator cutter blocks and a 12 1/4-in X616Z AxeBlade bit to maximize ROP and footage drilled.

Saved USD 240,000 in tripping-related costs

At 4,804-m [15,761-ft] MD, PEMEX decided to deactivate the Rhino XC reamer and continue drilling with the AxeBlade bit to TD at 5,516-m [18,097-ft] MD.

Photo - The Rhino XC reamer showed little to no wear.
The Rhino XC reamer showed little to no wear.

The section was completed in a single run, with a total of 1,488 m [4,882 ft] drilled at an average ROP of 10.2 m/h [33.5 ft/h]. Combined with the increased ROP provided by the AxeBlade bit, the Rhino XC reamer saved 48 h and USD 240,000 from tripping and BHA replacement costs. The bit and reamer experienced little wear.

Throughout the run, there were zero service quality incidents and zero NPT related to the Rhino XC  reamer and AxeBlade bit. In addition, there was no shock and vibration recorded. The 9 7/8-in casing was subsequently run to TD without issue.

Products Used
AxeBlade
Ridged diamond element bit

Improve penetration rates and directional control with our ridged 3D cutting element bit.
Rhino XC
On-demand hydraulically actuated reamer

Enable complete control of reamer activation and deactivation.

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