International Association of Drilling Contractors (IADC ) is one of important organizations in drilling industries.
One of their main contributions is well control. IADC has the well control courses and material that are very useful to all people in the drilling industry. Besides IWCF, IADC also distributes their kill sheets to everyone. There are a total of 12 files related to several well control methods and units. You can find the download links down below.
Note: updated link Aug-2014