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System Adds Reliability, Efficiency to Attaching Well Construction and Completion Tools
The secure placement of tools and accessories along well construction and completion strings is essential to executing downhole applications.
In wellbore cementing, for example, job success depends on efficient mud removal and cement displacement around the tubular. Both of these objectives may be compromised if channeling occurs, where the cement does not spread evenly in all directions. Prevention of channeling depends on designing the right cementing program, which includes achieving the optimal standoff between the string being cemented and the open hole.
Selecting the right centralizers and planning their location along the string are critical to achieving standoff. And securing the centralizers to keep them from sliding along the pipe is also essential to prevent damage to the string and the risk of leaving junk in the hole if the string must be removed from the wellbore.
A new attachment system designed for simplicity, reliability, and ease of installation has been developed by Ace Oil Tools to overcome the limitations of traditional methods used to secure tools and accessories to drilling and completion strings.
The patented design includes slim-profile male and female collars that are slid onto API casing joints and pressed together with a lightweight machine. As they are pressed together, corresponding ramps work to engage slip wickers to the joint to produce a very high holding force while maintaining a slim profile. The collars also feature a ratchet mechanism to prevent them from coming apart, forming a permanent lock to the joint.