These wells may show high dogleg severity in the intermediate section. Depending on the type of formation drilled across, there could be a tendency to form sort of keyseats, not only low side but also high side, that tend to get worst with additional drill string work, such as trips, reaming and/or circulation. By the […]
Good or bad cement job? 7 Criteria
Well, this is the question: Was it a good or bad cement job? The final answer will depend on the objectives of the job. We ask ourselves, were they met? In most cases, additional information is required, like a cement evaluation log, a pressure test or even further data during the well’s completion. However, some immediate […]
Primary Cementing Check List (Customer)
Now your are the person in charge of well construction operations. It is night and the company man is resting (contrary to “normal” people, a co-man needs noise to properly rest, because noise means that “all is working”). As a Junior or Night Wellsite leader you have done and seen this many times, but still […]
Why wiper plugs don’t always bump?
Everybody knows why bumping the top plug at the end of the displacement is an essential element of each successful primary cement job. It ensures only the shoe track is left with cement, and; It allows the pressure testing of the casing. First of all, a couple of questions for you: What is the reason […]
The importance of Pre-job check
During my first years in the industry, I quickly realized the importance of proper planning and preparation before of a cementing operation. For such an important, short and intense task, being ready and organized is the most significant element to safeguard people, the well, equipment and the job objectives. The following steps are some of […]
Cementing Engineering Services
After all the time in this challenging industry, the last few years have been incredibly interesting; and I know most people consider these last couple of years probably the worse for the oil industry ever and if we go by numbers that is absolutely correct. However, despite this undeniable truth there is also an urgent […]
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