It’s been a tough couple of years… After all the time I’ve spent in this challenging industry providing cementing engineering services, the last few years have been incredibly interesting. I know most people consider these previous couple of (2015 – 2016) years probably the worst for the oil industry ever, and if we go by […]
Gas Migration: 5 Truths (Primary Cementing)
First of all, I would like to define what Gas Migration is, from an acceptable industry reference: “Gas migration is the invasion of formation fluids (gas in this case) into the annulus due to a pressure imbalance at the formation face, where the fluids (gas) may migrate to a lower pressure zone or possibly to […]
KEY ELEMENTS OF A SUCCESFUL CEMENT JOB
Overview Depending on who explains it to you, there can be several possible ‘key elements’ to get a successful cement job in place. Some people would emphasize the design. Others would prioritize the execution aspects instead. In my case, I like to think that a successful cement job can only be achieved by a combination […]
Centralizer sub optimizes cementing performance
Before we get into the topic of centralizers, I can probably say that I have only personally met and worked with one true casing hardware expert in my 20-year long career. That was 14 or 16 years ago. In those days in Venezuela, it was common for this prominent casing hardware manufacturer to bring experts […]
The Power Behind Cementing Software
‘Garbage in, Garbage out’ … is an expression unfortunately applicable to so many human activities in today’s world. Social media is a clear example of this, but it is also a term sadly familiar to those who have experience with cementing software and computer simulations. Why? … Not sure exactly, but a lack of skills […]
A talk about API Fluid Loss
What FL is required and how it can be optimized? Conceptually, API fluid loss (FL) control is required every time there is a permeable formation. This creates a risk (A: can we quantify this risk?) of liquid phase filtration of the of the cement slurry. That, in consequence, creates a risk (B: can we quantify this […]
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