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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. Zinc Collar Pad Company Building - Wikipedia

   en.wikipedia.org/wiki/Zinc_Collar_Pad_Company...

   Zinc Collar Pad Co Building, c. 1890. In 1870, Dexter Curtis invented a unique Zinc lined collar pad for horse harnesses, which prevented chafing of the horse's neck and shoulders. That year, Curtis formed a partnership with George H. Richards and Henry Gilman to manufacture and market the pads under the name of ""Curtis, Gilman and Richards."

5. Horse harness - Wikipedia

   en.wikipedia.org/wiki/Horse_harness

   A collar is the part which a horse pushes against with its shoulders and chest. The two main designs are the breast collar harness and the full collar harness. A horse collar (or full collar) is a padded loop fitting closely around the horse's neck and resting on its shoulders. Must be correctly sized for each individual horse.

6. 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 ...

7. This practice in the health insurance industry may have ... - AOL

   www.aol.com/finance/practice-health-insurance...

   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. The Today Show.

8. Measurement while drilling - Wikipedia

   en.wikipedia.org/wiki/Measurement_while_drilling

   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 ...

9. 25 Black Friday deals that are worth the splurge: Kate Spade ...

   www.aol.com/lifestyle/black-friday-deals-that...

   This two-part set includes a cordless drill and a cordless impact driver, each with their own battery. The set also comes with a battery charger and a carrying case. DIY just got a whole lot easier.