A shock absorber sub or damper is a mechanical or hydraulic device designed to absorb and damp shock impulses while drilling. It does this by converting the kinetic energy of the shock into another form of energy (typically heat), which is then dissipated. Most shock absorber subs are a form of dashpot (a damper that …
Drilling reamer types serve different bottomhole-assembly (BHA) purposes: maintaining hole gauge, conditioning irregular sections or enlarging a pilot hole. The main equipment families include roller reamers, fixed-diameter hole openers and expandable underreamers. A near-bit reamer describes where the tool is positioned; RFID describes one method of commanding a downhole reamer. These terms are not five …
Drilling string stabilizer types & design is the main subject of this article. First, we will introduce to you the definition of a stabilizer. Then, we will move to the stabilizer application. Finally, we will talk about its types. This article is a part of the series explaining Bottom Hole Assembly Components, Types & Mechanism. …