The Well Integrity Blog by Wellcem Desert

Miguel Diaz

Miguel has 20 years’ experience from operations, technical advisor, quality assurance, business development and management positions in the oil & gas industry from all areas of the high-pressure pumping services. He has worked in South America, the Caribbean Sea, central and eastern Europe, Sub-Sahara Africa and the middle east. Miguel serves as one of our cementing experts and is our Regional Manager for the Middle East and North Africa region.
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Recent Posts

How to Test Cement Slurries in Different Well Applications? (Part 2)

Posted by Miguel Diaz on 13.09.2018

In this article, I will cover the test procedures for cement slurries in different well applications.These are all standardized test that any service provider should evaluate for the operator...

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How to design cement slurry for oil well applications (Part 1)

Posted by Miguel Diaz on 23.08.2018

Have you ever wondered what tests you should (or could) ask the lab to run when you are preparing for a cement job? Have you ever been part of an argument around a lab test result because it may...

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Plug and abandonment of oil and gas wells: Different materials

Posted by Miguel Diaz on 21.12.2017

Cement IS NOT the only material for well abandonment. In this article, we will address the doubts around the material that could be placed in the hole as a barrier for plug and abandonment, and...

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Cement slurry design for oil well applications: Standards you need to know

Posted by Miguel Diaz on 16.11.2017

Have you ever wondered what tests you should (or could) ask the lab to run when you are preparing for a cement job? Have you ever been part of an argument around a lab test result because it may...

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Materials for plug and abandonment of oil and gas wells

Posted by Miguel Diaz on 25.10.2017

In my previous article, I promised to address the doubts of the readers around the material that could be placed in the hole as a barrier for plug and abandonment, and whether those materials...

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Requirements for plug and abandonment of oil and gas wells - Legislation and Job design

Posted by Miguel Diaz on 11.10.2017

Following the article from Colin Beharie (“P&A: Are you absolutely sure it's plugged?"), we got a significant amount of questions on well’s plugging/abandonment. In this article, I will try to...

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Cement Plugging: A nightmare waiting to happen?

Posted by Miguel Diaz on 21.09.2017

A ghost from the past started hunting me when I went through my files. Ashamed of what I discovered I decided to tell everyone, especially young engineers, what not to do when setting a cement...

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Lab tests to review when designing a “gas-tight” cement slurry

Posted by Miguel Diaz on 13.09.2017

In last week's article, we discussed the mechanism of gas migration through a cement slurry. What we left for this week are the three most important lab tests to review when designing a...

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Gas tight slurries

Posted by Miguel Diaz on 06.09.2017

Following the article from my colleague, Svein Normann, on how gas migration during and after a cement job could lead to a catastrophic disaster, we received a significant amount of questions on...

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A simplistic approach to testing the cement before every job [from API10B2]

Posted by Miguel Diaz on 31.07.2017

In this second part of my article, I will cover the test procedures for cement slurries in different well applications.

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