Dogleg 1 : (n) (1) An abrupt change in direction in the wellbore, frequently resulting in the formation of a keyseat. (2) A sharp bend permanently put in an object such as a pipe, wire rope, or a wire rope sling
US Department of Labor, Occupational Safety & Health Administration (OSHA), Oil and Gas Well Drilling and Servicing eTool, Washington, DC. This is an abridged version of the Dictionary of Petroleum Terms provided by Petex and the University of Texas Austin, USA 2001. http://www.osha.gov/SLTC/etools/oilandgas/glossary _of_terms/glossary_of_terms_a.html, (Oil Well Drilling Sci and Tech - Amer) {492}
