One of the parameters that we always have to monitor during our operations is pressure. It is a major factor that determines whether drilling or production operations will be successful or not and as such it is never to be neglected or tampered with.
Throughout the life of a well, there are different pressures that come into play, from the reservoir pressure, fluid pressure, hydrostatic pressure, bottom hole pressure, formation pressure, etc. If these pressures are not controlled adequately, the chances of having a kick becomes higher. Notwithstanding this fact, a well cannot produce without pressure.
Though a well may begin production with the natural pressure found in the reservoir, depletion is bound to occur at some point. This would then require the help of artificial pressure to enable the well produce better. At the stage of discovery, before production begins, the initial pressure is known as the reservoir pressure. As production progresses, the reservoir pressure declines continuously when there is no support in the form of fluid injection or aquifer influx.
When a wellhead is mounted, it comes with its own pressure. This pressure is usually found at the top of the well. The wellhead pressure is divide into static and dynamic wellhead pressures. The static wellhead pressure is usually gauged in an abandoned well and depends on reservoir pressure, well-depth, and density. It is calculated as the difference between reservoir pressure and hydrostatic pressure of the liquid column from wellhead to the reservoir.
On the other hand, dynamic wellhead pressure is measured in an operating well and also depends on the reservoir pressure, well-depth, and density. In addition to that, it relies on the well rate or on injection agent flow rate, as well as on the pressure in the pipeline near the well and on the pressure differential in shut-off elements of the wellhead fittings.
From our years of experience, one way we keep these pressures under control is by constantly measuring them through pressure gauges of the wellhead fittings. Pressure gauges are essential for measuring tools in oil and gas production. They serve as indicators that monitor the pressure from the wellhead to the tank battery. This is why we pay keen attention to our wellhead equipment to make certain that every part is functioning excellently before they leave the workshop.
For us at Kenyon, it is always zero compromise on quality and safety. This gives us the confidence that zero LTI is possible.
We are Kenyon!