Maximum formation pressure that can be controlled when we shut the well in

You know about kick tolerance factor from previous section and you can use it to determine the maximum formation pressure which can be controlled when the well is shut in.

This equation below demonstrates you how to calculate it.

Maximum formation pressure = (kick tolerance factor + current mud weight) x 0.052 x TVD of the well

These

Maximum formation pressure in psi

kick tolerance factor in ppg

current mud weight in ppg

TVD of the well in ft

It tells us that if you have bottom hole pressure more than this value, you have a chance to break formation.

Use the following information to determine the maximum formation pressure when shut in

kick tolerance factor = 1.8 ppg

current mud weight = 9.8 ppg

Depth of the well = 10,100’MD/9,500’TVD

Maximum formation pressure = (1.8 + 9.8) x 0.052 x 9500

Maximum formation pressure the can be controlled when shut the well in = 5730 psi.

Please find the calculation sheet >>> Maximum formation pressure that can be controlled when we shut the well in

Ref book: Drilling Formula Book Formulas and Calculations for Drilling, Production and Workover, Second Edition

Related Post

Determine surge and swab pressure method 2 Calcula... This section will show to how to use the formula from the previous topic, surge and swab pressure calculation 2nd method , to determine surge and swab...
Oil Well Cementing (Purpose and its importance) Purposes of oil well cementing are as follows: Zonal Isolation: Isolate hydrocarbon pays, water pays, shale, etc. Seal off lost circulation zon...
Understand shoe pressure – Shoe pressure when the ... For this case, we will consider the shoe pressure when the gas kick is passing the casing shoe. See the image below. Let’s apply the hydrostatic pr...
How much pressure will we see at cement head in ca... I still have the simple but interesting question about hydrostatic pressure which you can apply this calculation into drilling/cementing operation. Th...
Share the joy
  • 5
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
    5
    Shares
Tagged , . Bookmark the permalink.

About DrillingFormulas.Com

Working in the oil field and loving to share knowledge.

One Response to Maximum formation pressure that can be controlled when we shut the well in

  1. George B. Heckler says:

    You need to then calculate the kick tolerance factor at the shoe and then use the lesser of the two.

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.