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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. Horse harness - Wikipedia

   en.wikipedia.org/wiki/Horse_harness

   A horse harness is a device that connects a horse to a horse-drawn vehicle or another type of load to pull. There are two main designs of horse harness: (1) the breast collar or breaststrap, and (2) the full collar or collar-and-hames. For pulling heavy loads, a full collar is required because it distributes pressure over a larger area of the ...

5. Drill string - Wikipedia

   en.wikipedia.org/wiki/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 drill bit.

6. Horse collar - Wikipedia

   en.wikipedia.org/wiki/Horse_collar

   However, the findings of Lefebvre des Noëttes were not without challenges, notably the argument that there was an early partial horse collar, a dorsal yoke system, dating to ancient Rome, and that Lefebvre's designs did not accurately reflect those actually used, but rather created an inaccurate design that was less efficient than any actual ...

7. The 10 Best-Dressed Celebrities at the 2025 Golden Globes

   www.aol.com/lifestyle/10-best-dressed...

   The 10 Best-Dressed Stars at the Golden Globes CBS Photo Archive - Getty Images. The glitz, the glamour, the elegance: It’s safe to say that Hollywood red carpet fashion is back, thanks to the ...

8. Drill pipe - Wikipedia

   en.wikipedia.org/wiki/Drill_pipe

   The drill string consists of both drill pipe and the bottom hole assembly (BHA), which is the tubular portion closest to the bit. The BHA will be made of thicker walled heavy weight drill pipe (HWDP) and drill collars, which have a larger outside diameter and provide weight to the drill bit and stiffness to the drilling assembly.

9. Pregnant woman and baby saved after doctors find grapefruit ...

   www.aol.com/pregnant-woman-baby-saved-doctors...

   A Chicago woman was just weeks away from giving birth when a nagging cough led to a shocking medical discovery. MaKenna Lauterbach shared her harrowing story with Fox News Digital.