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A mud motor (or drilling motor) is a progressive cavity positive displacement pump (PCPD) placed in the drill string to provide additional power to the bit while drilling. The PCPD pump uses drilling fluid (commonly referred to as drilling mud, or just mud) to create eccentric motion in the power section of the motor which is transferred as ...
A screw-propelled vehicle A screw-propelled vehicle is a land or amphibious vehicle designed to cope with difficult terrain, such as snow, ice, mud, and swamp. Such vehicles are distinguished by being moved by the rotation of one or more auger-like cylinders fitted with a helical flange that engages with the medium through or over which the vehicle is moving. They have been called Archimedes ...
A swamp buggy, also known as a marsh buggy, is a motor vehicle used to traverse boggy swamp terrain. Swamp buggies may be purpose-built buggies or vehicles modified to traverse swamp terrain. Swamp buggies are capable of traveling through or over deep mud and water, moderately dense vegetation, and rough terrain possibly including logs and stumps.
In other words, a tool designed to drill directionally with continuous rotation from the surface, eliminating the need to "slide" a mud motor. The first known patent application is from Christopher G. Cross in 1873 for "Drills for Boring Artesian Wells", [ 1 ] followed in 1884 by the brothers Morris and Clarence Baker for a "Machine for ...
In 1987, Yamaha Motor Company introduced a different type of high-performance machine, the Banshee 350, which featured a twin-cylinder liquid-cooled two-stroke motor from the RD350LC street motorcycle. Heavier and more difficult to ride in the dirt than the 250s, the Banshee became a popular machine with sand dune riders thanks to its unique ...
A mud pump (sometimes referred to as a mud drilling pump or drilling mud pump), is a reciprocating piston/plunger pump designed to circulate drilling fluid under high pressure (up to 7,500 psi or 52,000 kPa) down the drill string and back up the annulus. A mud pump is an important part of the equipment used for oil well drilling.
The Waterman outboard engine appears to be the first gasoline-powered outboard offered for sale in significant numbers. [11] It was developed from 1903 in Grosse Ile, Michigan, with a patent application filed in 1905 [12] Starting in 1906, [13] [14] the company went on to make thousands of his "Porto-Motor" [15] units, [16] claiming 25,000 ...
This has driven sandrail engine builders to add performance features to engines such as the stock (24 to 50 horse power) Volkswagen engine. These include: larger pistons, turbochargers, dual racing carburetors, fuel injection, and high performance cylinder heads. Some performance engines can run on premium unleaded gasoline.
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