I have a lot of friends on social media in the drilling business. We ask each other questions, give answers to questions and generally interact in ways that help build the industry.
A friend called the other night to catch up and chew the fat about things in general. I asked him if he was busy, etc., and he told me that he had lost a well that day.
During my years manufacturing and selling drill rods, I have had customers experience problems. Although these are not common, they are always of concern.
In my working years, I have seen many control valve designs — some pretty simple and some rather complicated. I’m going to write about the advantages and disadvantages of these designs.
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