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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.
Elevators, as developed for the drilling industry, are a hinged device with handles that are used to wrap around the tool joint of drill pipe, casing or lift nipples (for collars) to facilitate the lifting or lowering of them singly or of the drill string as a whole.
Accompanied by a parade, a horse racing meet, a rodeo and a number of social activities, it attracts rodeo stock contractors from the United States and Canada who are looking for bucking horse, and bucking bull prospects. The first official Miles City Bucking Horse Sale began in 1951, though an unofficial sale was held in 1950. [1]
It's time for Nordstrom's Half-Yearly Sale: Stock up on beauty bestsellers from MAC, NARS and more. See all deals. In Other News. Entertainment. Entertainment. Good Morning America.
Urinary System Cancer. Transitional cell carcinoma, a type of cancer most commonly seen in a dog's bladder, may respond to ivermectin in the same way as human renal cell carcinoma.
Meet Gout Gout, the 16-year-old Australian sprinter who recorded the fourth-fastest time by an Australian in the 100-meter race on Friday, Dec. 6. Gout, largely touted as the next Usain Bolt ...
When the horse was harnessed in the collar, the horse could apply 50% more power to a task in a given time period than could an ox, due to the horse's greater speed. [ 1 ] [ 2 ] Additionally, horses generally have greater endurance than oxen, and thus can work more hours each day.
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