The planned inclination of the tangent section of a directional well. In a horizontal well if would be 90 deg ( /- 10 deg), in a build and hold or S well it would be the tangent section, in a slant well it would be the inclination throughout.

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Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content.

Generally used in describing a surface or subsurface safety valve.

The line from the derrickman's platform to the ground, used in an emergency. Also called a Geronimo line.

A section in a downhole tool string than can be actuated by ball or pressure to allow recovery of the pipe string if the tool is stuck.

A joint above a piece of equipment that is designed to fail and allow recovery of the upper string.

The derating factor applied to a pressure test limit or weight limit to set a maximum operating load condition.

Also any clamp for securing pipe above the rotary table, even when the slips are set.