WEBINAR – NEW SESSION - Rod string make-up – Thursday 11th June

Frequent Rod Failures? Find out simple tricks to eliminate 90% of those cases.

Attend our 30min webinar by Paul Skoczylas on ‘Rod String Make-Up’. Thursday 11th June 2020 @08:00 am Omani time, @09:30 am Indian time, @12:00 am Chinese time, @02:00 pm Australian time. 


Click here to access the presentation of the webinar

To drive our PCPs we usually use API sucker rods, or variations on the API standard rods.  These API rods were originally designed for reciprocating applications, where there is no torque.  We know they can also work well for PCPs, of course. 

Laboratory testing of sucker rods to evaluate their torque capacity has showed that the connection is stronger than the rod body. 

In the field, however, rod string failures often happen at the connection.  This is often in the form of a broken pin or stripped threads, as in the pictures below.  Less often, couplings can also split open.  They can also fail by becoming unscrewed during backspin.

Clearly there is a difference between conditions in the laboratory and in the field—but the real difference is in the procedures used to prepare and make-up the connections. 

In this webinar, we will discuss what oil and gas companies can do during installation to ensure that their connections have the maximum possible strength, and to prevent almost all connection failures in a PCP rod string.  We will also briefly discuss the API and ISO standards, and the PCP rods which are modified from the API standard.