Abstract:

Reverse circulation kill method was much used in workover well control. As it has such advantages as quick removal of well kick，less pit gain，and small casing pressure，it can also be cased in well completion and drilling well control. This paper introduces the technology of the reverse circulation kill method，presents the calculation method of drill pipe pressure and casing pressure influenced by flow resistance，and compares this method with conventional driller's method and engineer's method when it is used to calculate practical examples.

Key words: Well control, Killing well, Reverse circulation