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Well bottom hole pressure

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well bottom hole pressure
There is nothing more important in petroleum engineering than a definiteknowledge of the pressure at the bottom of an oil well at any existingoperating condition, and the relation of this pressure to the pressure withinthe producing formation. A knowledge of bottom-hole pressures is fundamental indetermining the most efficient methods of recovery and the most efficientlifting procedure, yet there is less information about these pressures thanabout any other part of the general problem of producing oil. Determination Of Bottom-Hole Pressures Bottom-hole pressure may be calculated or determined by several methods. On aninactive well it may be calculated from the fluid head or, if the well is shutin, by adding the casinghead pressure, the static head of the gas and the fluidhead. In wells flowing naturally through tubing the pressure at the bottom ofthe tubing may be calculated by adding the pressure at the casinghead betweenthe tubing and the casing and the pressure due to the weight of the column ofgas, but there is always possibility of error caused by fluid being in theannular space above the bottom of the tubing. If a well with tubing is flowingthrough either the annular space or the tubing, sufficient gas may be injectedthrough the static space to insure that it is free of fluid but not sufficientto establish an appreciable friction loss.
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Wellbore flow performance

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Well control - Wikipedia

This post will show you Lean about bottom hole pressure relationship because this concept is very important for well control concept. The bottom hole pressure is sum of all the pressure acting on the bottom hole. We can describe the statement before as the following equation;. Note: BHP created by hydrostatic column of drilling fluid is the primary well control in drilling.
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bottomhole pressure

Well control is the technique used in oil and gas operations such as drilling , well workover and well completion for maintaining the hydrostatic pressure and formation pressure to prevent the influx of formation fluids into the wellbore. This technique involves the estimation of formation fluid pressures, the strength of the subsurface formations and the use of casing and mud density to offset those pressures in a predictable fashion. The aim of oil operations is to complete all tasks in a safe and efficient manner without detrimental environmental effects.
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Post a Comment. About Contact Us Privacy Policy. When pumping the drilling fluids Click here through the circulating system, high level of pressure is lost. Actually, the pressure on the mud pump indicates the amount of the friction which has to be overcome to circulate the drilling fluids.
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well bottom hole pressure
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