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  2. Pipe recovery operations - Wikipedia

    en.wikipedia.org/wiki/Pipe_recovery_operations

    The Drill Collar Severing Tool is often used to separate heavy weight drill pipe or drill collars. The DCST contains an explosive charge at either end of the tool; both charges are detonated simultaneously. The explosive shock waves meet in the center of the tool and combine to produce a very high energy wave capable of cutting through the ...

  3. Bottom hole assembly - Wikipedia

    en.wikipedia.org/wiki/Bottom_hole_assembly

    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.

  4. Ridgid - Wikipedia

    en.wikipedia.org/wiki/Ridgid

    The Ridge Tool Company is an American manufacturing company that makes and distributes tools under the Ridgid brand name. The company was founded in 1923 in North Ridgeville, Ohio . [ 1 ] In 1943, it relocated to its current location in Elyria, Ohio , and in 1966, it became a wholly owned subsidiary of Emerson Electric .

  5. Rare, ancient tool used for horses is found in German ...

    www.aol.com/rare-ancient-tool-used-horses...

    It indicates that the ancient inhabitants of the region treated animals with care, officials said.

  6. Vandal filmed spray-painting ‘Kill the Homeless’ on NYC ...

    www.aol.com/vandal-filmed-spray-painting-kill...

    Two photos showing the unknown man writing Kill the Homeless on a subway bench, and a third image showing the recent arson murder on the F train,.

  7. 19-Year-Old Woman 'Repeatedly Assaulted' at Home by Other ...

    www.aol.com/lifestyle/19-old-woman-repeatedly...

    Police in Ohio are searching for suspects after a 19-year-old woman was stripped of her clothes and attacked last month.. The Akron Police Department in Ohio told PEOPLE in a statement that ...

  8. List of components of oil drilling rigs - Wikipedia

    en.wikipedia.org/wiki/List_of_components_of_oil...

    Drill bit (#26) is a device attached to the end of the drill string that breaks apart the rock being drilled. It contains jets through which the drilling fluid exits. Drill floor (#21) is the area on the rig where the tools are located to make the connections of the drill pipe, bottom hole assembly, tools and bit. It is considered the main area ...

  9. Drill pipe - Wikipedia

    en.wikipedia.org/wiki/Drill_pipe

    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.

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