Drilling Engineering 7.
Well Control The clients policies on safety factors and trip margins
For a well to be killed successfully, the pressure in the formation must be kept under control during the entire kill operation. The only exception is in cases when the maximum allowable annular pressure will be exceeded. The simplest method of doing this is to control the drillpipe pressure by running the kill pump at a constant rate and controlling the pressure by regulating the choke on the choke line. The three main kill methods are: 1.
The Driller's Method (two circulations)
2.
The Wait and Weight (Engineers) method (one circulation)
3.
The Concurrent Method
The EAP Kick and Kill Analysis and DrillByte Kill Monitor programs provides printouts of the data required in these procedures and plots a record of progress during kill operations.
Workbook 80270H Rev. B / December 1995
8-13 Confidential