A casing in which the outside diameter of the joint is the same as the outside diameter of the casing itself.

A standardized measure of casing-strength properties. since most oilfield casing is of approximately the same chemistry (typically steel), and differs only in the heat treatment applied, the grading system provides for standardized strengths of casing to be manufactured and used in wellbores. the first part of the nomenclature, a letter, refers to the tensile strength. [...]

Pressure of the annular fluid on the casing at the surface when a well is shut in

Generally, the first string of casing in a well. it may be lowered into a hole drilled into the formations near the surface and cemented in place; or it may be driven into the ground by a special pile drive (in such cases, it is sometimes called drive pipe); or it may be jetted into [...]

A circular device with a frictional gripping arrangement of slips and packing rings used to suspend casing from a casinghead in a well

The location of the bottom of a string of casing that is cemented in a well. typically, a casing shoe is made up on the end of the casing at this point.

The entire length of all the joints of casing run in a well. most casing joints are manufactured to specifications established by api, although non-api specification casing is available for special situations. casing manufactured to api specifications is available in three length ranges.
a joint of range 1 casing is 16 to 25 feet long; [...]

Blade tool used to scrape away junk or debris from inside casing; run on pipe or tubing.

A procedure whereby the formation immediately below the casing shoe is subjected to a pressure equal to the pressure expected to be exerted later by a higher drilling glut density or by the sum of a higher drilling fluid density and back-pressure created by a kick.

1. a device secured around the casing at the regular intervals to center it in the hole. casing that is centralized allows a more uniform cement sheath to form around the pipe.
2. one of several centralizer designs intended to keep the casing better centered in the borehole to get better cement jobs.

To run and cement casing at a certain depth in the wellbore. sometimes called set pipe.

A squeeze cementing method in which a packer is set to form a seal between the working string (the pipe down which cement is pumped) and the casing. another packer or a cement plug is set below the point to be squeeze-cemented. by setting packers, the squeeze point is isolated from the rest of the [...]

The string of casing set in a well after the surface casing but before production casing is set. keeps hole from caving and seals off troublesome formations. also called protection casing.

Spring-loaded buttons on a packer that provide friction with casing to retard movement of one section of a packer while another section rotates for setting.

1. steel pipe placed in an oil or gas well as drilling progresses to prevent the wall of the hole from caving in during drilling, to prevent seepage of fluids, and to provide a means of extracting petroleum if the well is productive.
2. large-diameter pipe lowered into an openhole and cemented in place. the well [...]