Shoe pressure when the gas kick is above a casing shoe

We have learned 2 cases about shoe pressure when kick is underneath shoe, and kick is passing the shoe,

When gas kick is being move above the shoe, do you know how much pressure at shoe has?

Shoe pressure when the gas kick is above a casing shoe

I will explain this case via this blog post.

First of all, let’s apply the hydrostatic pressure concept,

Bottom Hole Pressure = Pressure at casing shoe + Hydrostatic Pressure in the open hole underneath the shoe

The concept while circulating kick is the same. It means that you must keep bottom hole pressure constant. Therefore, you can write the equation like this:

BHP (constant while circulating) = Hydrostatic Pressure at Shoe + Hydrostatic Pressure in open hole

While kick above the shoe, the hydrostatic pressure in the open hole will remain constant therefore the pressure at casing shoe will remain constant.

Conclusion: Shoe pressure will remain constant after the bubble above the casing shoe.

Ps – assumptions : water base mud is used and kick is gas.

Reference book: Well Control Books

Related Post

How wait and weight method controls bottom hole pr... This topic will explain you how wait and weight well control controls bottom pressure constant. There are 2 steps that must be took into consideration...
Causes of Kick (Wellbore Influx) A “Kick” or “Wellbore Influx” is undesirable flow of formation fluid into the wellbore and it happens when formation pressure is more than hydrostatic...
Oil Field Coversion Part 3 Oil Field Conversion Pa... The last part of unit conversion is the conversion for  Pressure,Velocity, Volume and Weight specially used in the oilfield. The RED number is the ...
Shut-In Procedure while Tripping with a Subsea BOP... After we publish this article “Hard Shut-In Procedure while Drilling with a Subsea BOP Stack”, there are some people asking us about what about the sh...
Share the joy
  • 14
Tagged , . Bookmark the permalink.

About DrillingFormulas.Com

Working in the oil field and loving to share knowledge.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.