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 […]
Support Better Cementing for All – Empowering Oil Well Cementers
In 2016, I launched Better Cementing for All. Now, I want to keep it alive. For more than 24 years, I have worked in oil well cementing, offering my services to some of the largest oil corporations in the world and committing myself to excellence. I have mastered my role, and in doing so, I […]
Workover Cementing Techniques. (3) Plug Cementing
Continuing with these series of posts covering some of the cementing techniques applicable in workover operations, I want to talk further about plug cementing. In previous posts, I have covered extensively plug cementing. This time I am providing information regarding laboratory testing and some considerations when cement plugs intended for well abandonment. Cement Slurry Properties […]
Workover Cementing Techniques. (2) Squeeze Cementing
Squeeze cementing is basically a filtration process that occurs during the placement of the cement slurry into a wellbore entry point (casing leak, existing perforations, etc.) under sufficient differential pressure. The cement slurry is held in place until it cures and establishes a hydraulic seal. Look at this picture in Squeeze Cementing Principles explaining the […]
Workover Cementing Techniques. (1) The Injectivity test
I want to present a series of posts covering cementing techniques applicable during workover, including specific job requirements, fluid characteristics, and testing procedures for each of the following job categories: Remedial cementing, well abandonment, and fluids control/shut-off. I am initiating this series of posts, with an essential step in remedial cementing and the squeeze process: […]
Balanced-plug method. Basic calculations
Free Balanced 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 of […]
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