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Key seating occurs when the drill string becomes off-centered in the wellbore, and the pipe collars become caught on a deviation in the wellbore. If the rig is able to move the drill string freely downhole, but every time the drill string is pulled upward it becomes stuck at the same point, then it is likely that the pipe is caught in a key seat.
To latch around a piece of pipework a set of elevators need a precise internal diameter, with an appropriately profiled shoulder to accommodate the lower profile of a tool joint. The latch mechanism has to prevent opening under radial loads of up to hundreds of tons. For some purposes (casing elevators, and loading pipe into and out of the ...
A photograph of a broken segment of drill string. A drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid (via the mud pumps) and torque (via the kelly drive or top drive) to the drill bit. The term is loosely applied to the assembled collection of the smuggler pool, drill collars, tools and
Working in El Dorado, Arkansas, in the 1920s, E.C. Johnston and his brother M.O. Johnston developed the first drill stem tester and ran the first commercial drill stem test in 1926. In April 1929, the Johnston Formation Testing Corporation was granted a patent (U.S. Patent 1,709,940) and they subsequently refined the testing system in the early ...
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America's Funniest Home Videos is based on the 1986–1992 Tokyo Broadcasting System variety program Kato-chan Ken-chan Gokigen TV (also known as Fun TV with Kato-chan and Ken-chan), which featured a segment in which viewers were invited to send in video clips from their home movies; ABC, which holds a 50% ownership share in the program, pays a royalty fee to TBS Holdings, Inc. for the use of ...
Drill pipe is most often considered premium class, which is 80% remaining body wall (RBW). After inspection determines that the RBW is below 80%, the pipe is considered to be Class 2 or "yellow band" pipe. Eventually the drill pipe will be graded as scrap and marked with a red band. Drill pipe is a portion of the overall drill string.
White Collar fans rejoice — brand new episodes are seemingly on the way soon. “We’re gonna reboot. I’m writing the script,” creator Jeff Eastin said during Variety’s TV Fest panel on ...