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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.
Rotary assemblies [2] are commonly used where formations are predictable and the rig economics are an issue. In such an assembly the weight of the drill collars gives the BHA the tendency to sag or flex to the low side of the hole, collar stiffness length and stabiliser diameter and placement are engineered as a means of controlling the flex of the BHA.
For example, slim tools are not capable of sending data at the same rates as collar-mounted tools, and they are also more limited in their ability to communicate with, and supply electrical power to, other LWD tools. [citation needed] Collar-mounted tools, also known as fat tools, cannot generally be removed from their drill collar at the ...
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The drill string will be removed from the wellbore to allow a logging crew to conduct a survey of the well. After the logging is completed at total depth, the crew will run the drill string back into the well and then proceed to lay it down when coming out of the hole prior to installing the final set of casing (the "production casing").
(Reuters) -Scott Bessent, the investor selected by President-elect Donald Trump to be his Treasury secretary, will divest from his Key Square Group hedge fund and other investments, according to a ...
Editor's note: Follow Ohio State vs. Notre Dame live updates, scores and highlights from the national championship game. Hayes: Ohio State, but after what Notre Dame has produced in the playoff ...
As some may be aware, Reba is currently starring in her own sitcom on NBC titled Happy's Place.Currently airing its inaugural season, the singer reunited with Reba co-star Melissa Peterman for the ...