The most common placement method is the balanced plug technique. The work-string is run into the wellbore to the desired depth for the plug base. Contamination or mixing with the control fluid is avoided by the use of appropriate volumes of spacer or chemical wash. These are pumped ahead of and behind the cement slurry […]
New CemPRO+ Review
Following my CemPRO+ review post a little more than a two years ago, I have broadened my knowledge of this cementing application, not only providing engineering and post-job analysis to my customers but also and during some time, actively designing cement jobs in an on-going busy operation. Furthermore, I even found myself in the middle […]
Highly deviated or Horizontal well section abandonment?
I have to be honest, it is only recently that I had the opportunity to place frequent cement plugs in such conditions and purpose. Yes, I did those only occasionally before … However, “Frequency” is important, and beside what everybody knows (so-called best practices) Frequency is how the significance of all the variables can be […]
Successful Well Cementing
The case of unawareness Vs. understanding What are the consequences of knowing the outcome of your cement job? Most people would say, that knowing the outcome allows the connection of execution and design with job model and assumptions — the path of perfection. Just to clarify, knowing the cement bond is just part of the […]
In need of Cementing Engineering Training?
Recently, someone asked me about cementing engineering training schools by an employee of a regional cementing company. This person was aspiring towards a position as a senior cementing engineer. The rise of regional companies The interest from this cementing company employee was not the first time I have received a similar question. They are becoming […]
Forward thinking reverse cementing
I recently participated in a discussion about opting for the best alternative between conventional and reverse primary cementing to deal with losses and frequent difficulties to reach the required TOC in an intermediate well section. The interesting thing in this discussion was that the majority of the participants had no experience in doing reverse cementing. […]
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