Faced with a long 16,695 ft well in the Wolfcamp shale (Reeves County, Texas), where conventional casing runs typically take 30–35 hours, the operator sought a faster, more reliable solution. By using 187 of Centek S2 bow-spring centralizers and 374 matching stop collars across 420 joints, the entire casing run was completed in just 16.5 hours — cutting run time by more than half. The S2’s smooth, semi-rigid single-piece design minimized drag and running resistance even when fitted rig-floor, enabling rapid, safe descent in the 8⅝” open hole.
To improve running casing time in this 16,695ft well in the lower Wolfscamp shale, Reeves Country, Texas. This normally takes around 30-35 hours.
187 x Centek S2 centralizers with 374 Centek stop collars were used on a string of 420 joints.
The whole job ran in only 16.5 hours, even with the centralizers and stop collars being fitted on the rig floor. In this 8.1/2”
open hole, that’s 2.36 minutes per joint, fitted.
The revolutionary S2 bow spring centralizer is a high-performance, single-piece solution specifically designed for challenging wellbores.
Its engineered combination of strength and flexibility enhances run-in-hole (RIH) efficiency, reducing time and costs for operators aiming to reach total depth.
S2 Bow Spring Centralizer