Elements that converge in the completion of an oil well // Importance within Engineering
Introduction
There are many elements of study that have to coincide in order to complete an oil well and put it to produce optimally and profitably. Not only with drilling an oil well can we finish all the construction tasks of the same, since the well can produce by many mechanisms, that is to say we can put to produce an oil well and natural gas by electro submersible pumping, mechanical pumping (rocker), Artificial gas lift (LAG), and / or even the well can produce by its same energy that is known by natural flow.Now all those ways of producing a well depend on the geological information and the production requirement, and above all on whether the deposit will produce by natural flow due to the gas associated with the oil or due to an aquifer that supplies the energy necessary to produce. All accessories used to complete a well are not the same, to put to produce a well by natural flow are needed circulation sleeves, valves, pipe production and other accessories more, if the well for example will produce by electro-submersible pumping A pump that goes down to the well is needed to the production area, this pump is lowered with a production pipeline together with a power cable system.
Elements to take into account for the completion of a well
Geology: The lithological part plays a very important role to know how to complete a well in the most profitable and optimal way, a clear example of this is in the fact that the producing field can present certain characteristics in the formation , the producer stratum can be presented as consolidated sands or few consolidated ones, this infers in the type of completion, since for an unconsolidated formation, especially if the objective of the producing sand is in the Miocene, it is necessary to complete with a hanging pipe (Slotted liner) that wears a shirt that can support the formation of a landslide and in turn that the oil goes to the surface with the least amount of solids possible.
Selection of the sands: The completions within their classifications can be selective, that is I can put to produce a certain number of feet of the producing sand, and through a set of valves I close the step of the production of the others existing intervals, to produce the entire interval in its entirety or partially, it is a factor that will depend clearly on the production, if I require to safeguard the deposit for a future production, then the well is completed by a simple selective completion, where what it is thought to conserve the energy of the deposit. If what you want to have is a high production, it is completed by placing a completion where the entire producing interval is cannonade.
Conclusion and considerations
Effective completion of the well will depend on the production of the well in the future throughout its useful life, this will also save us the expense of having to enter the well for future changes and repairs, as the article deals with the elements that converge in the completion of a well, we must consider the most important and essential elements in the completion of the well, which in my opinion are: the geology, the production of the well and especially the budget that is needed to complete the well. I would like to emphasize that the completion of the well is part of the construction of the well, and this represents the last phase in its completion, therefore we must close with a flourish, because if we complete the well poorly, we would be damaging everything the sacrifice that was made in the drilling activities that have so much effort during the entire construction phase of it.
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