Free Balanced Cement Plug Calculator at the end of this post. Check it out ! 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 […]
Remedial Cementing with Coiled Tubing (animation)
Though I am far from being an animation expert, during my training courses I have always wanted to show my students a video with the complete sequence of the coiled tubing cementing process. Recently, I finally found the time and “patience” to make that very video. This will be part of a full post on […]
Is a base necessary for your Cement Plug? – Part 2
In Part 1, I mentioned why cement plugs had taken a leading role in this website. It is so relevant to do sound engineering to avoid non-productive time and reduce the risk of even more disastrous consequences, like a placement pipe stuck in hard cement. In this subsequent post, I would like to introduce a […]
A Cement Plug… just get it right the first time! – Part 1
In the past, I have written extensively about plug cementing, perhaps more than any other topic on this website, and the reason is simple: cement plugs are challenging. In my case, my eyes started to open back in Mexico while attempting deep sidetrack cement plugs. An SPE resulted from that trauma in Mexico after we […]
Cement gelation: Come on! move it! push it! … Too late, it’s gelled up! …
Now, please let me tell you more about Cement gelation Why this post? Over a month ago, someone requested some insights about gelation during primary and secondary cementing. Two or three answers were provided, which I think were enough to have a good idea of the topic. However, to be honest, I could not stop […]
Balance to succeed: Cement Plugs in losses situation
Loss circulation challenges This is a short article focusing on one topic: the balanced plug. During my time in Mexico, one of the main challenges That we faced was severe loss circulation. In new wells, due to the presence of fractured carbonates and low formation pressure (LPHT), several actions were usually in place. Examples include […]
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