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2. Shell Rotella - Wikipedia

   en.wikipedia.org/wiki/Shell_Rotella

   Multigrade synthetic oil—in SAE 5W-40 and 15w-40 viscosity ranges [3] Single grade conventional oil—in SAE 20, 30, 40 and 50; Synthetic blend oil; Shell is marketing their new CJ-4/SM oil as "Triple Protection," meaning it provides enhanced qualities for engine wear, soot control and engine cleanliness.

3. Synthetic oil - Wikipedia

   en.wikipedia.org/wiki/Synthetic_oil

   Synthetic oils are also used in metal stamping to provide environmental and other benefits when compared to conventional petroleum and animal-fat based products. [4] These products are also referred to as "non-oil" or "oil free". A polyalcanoate synthetic oil is widely used to lubricate pendulum clocks.

4. Motor oil - Wikipedia

   en.wikipedia.org/wiki/Motor_oil

   However, they still fill up with particulate matter, although the matter better suspends within the oil, [citation needed] and the oil filter still fills and clogs up over time. So periodic oil and filter changes should still be done with synthetic oil, but some synthetic oil suppliers suggest that the intervals between oil changes can be ...

5. Shell plc - Wikipedia

   en.wikipedia.org/wiki/Shell_plc

   The combined company rapidly became the leading competitor of the American Standard Oil and by 1920 Shell was the largest producer of oil in the world. [7] Shell first entered the chemicals industry in 1929. Shell was one of the "Seven Sisters" which dominated the global petroleum industry from the mid-1940s to the mid-1970s.

6. Shell-and-tube heat exchanger - Wikipedia

   en.wikipedia.org/wiki/Shell-and-tube_heat_exchanger

   A shell-and-tube heat exchanger is a class of heat exchanger designs. [1] [2] It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higher-pressure applications. As its name implies, this type of heat exchanger consists of a shell (a large pressure vessel) with a bundle of tubes ...

7. Helix Energy Solutions Group - Wikipedia

   en.wikipedia.org/wiki/Helix_Energy_Solutions_Group

   Helix Energy Solutions Inc., known as Cal Dive International prior to 2006, is an American oil and gas services company headquartered in Houston, Texas. The company is a global provider of offshore services in well intervention and ROV operations of new and existing oil and gas fields .