Antelope Oil Tool (AOT), a manufacturer and supplier of casing and cementation equipment, has successfully run their CentraMax RT1 centralizer in ultra-deepwater Gulf of Mexico, in a deviated and under-reamed wellbore.
A customer faced a challenging casing string application that required them to run a deep and heavy weight 16in liner in the deviated and under-reamed well. The operator decided to run the 16in liner through an 18.125in ID restriction at the 22in casing shoe track. The 16in liner was to be run to 24,000ft and centralized in a 21in under-reamed hole with 22° of inclination. The liner was a mixed string of 16in 97lb/ft and 16.15in 127lb/ft liner and weighed well over 2 million lbs. The weight was such that the client would not have been able to pull out of hole (POOH) after the shoe reached 19,000ft making the centralization even more critical.
Rather than utilize centralizer subs (a more standard offering), the operator opted to run Antelope’s proprietary “to-the-pipe” solution.
Utilizing Antelope’s CentraMax RT1 single-piece centralizer with a WearSox internal thermal spray metal stop, the operator was able to run the casing to bottom and complete the cement job, saving 60% on casing centralization.
“[The product’s] ability to centralize casing in the toughest and tightest environments, and the huge cost savings our clients receive from utilizing this product line is exactly what we had in mind when we designed the CentraMax CT line,” said Bill Kelley, president and CEO of AOT.
Image:CentraMax RT1/Antelope Oil Tool
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