THE CHALLENGE
A vertical (2 degree) well with a depth of 1,110 in Malaysia. A FMC sub-mudline receptacle with a restriction of 17.183” was in the 20” casing at ~920m.
THE SOLUTION
The customer ran 600m of 16” liner with 1 Centek TUR 16" x 20" centralizer per 4 joints in open hole (based on inclinations <1deg). Aside from the initial push required to get the shoe centralizer into the wellhead, no issues were observed running the centralizers through the wellhead and the SML hanger restriction. Unfortunately a problem was encountered when landing the SML hanger in the receptacle and the liner had to be pulled back.The customer encountered no problems pulling all the centralizers back through the 17.183” restriction, subsequently re-running them through the restriction and into the hole again.
THE RESULT
The liner was not pulled back far enough to verify the condition of any of the centralizers and stop collars but there was no Centek equipment bunched up underneath the hanger proving that all centralizer equipment stayed in place and worked as intended.
