An effective anticollision risk management approach is essential for drilling safely in the congested subsurface environments<br>increasingly common in today’s drilling programs. Because there is as yet no industry-wide standard for collision risk<br>assessment and management, many companies have developed their own standards, which can differ in significant details. In<br>one recent project, both the operator and the directional drilling contractor had developed specific anticollision procedures.<br>The challenge was to create a drilling program that satisfied the requirements of both standards. This paper describes the<br>problems we encountered and the solutions we created to successfully design and execute a drilling plan satisfactory to both<br>companies.


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