Wireline Operations. This is part of the Oil and Gas Production Series. Many of todayâs most vital oilfield operations depend directly on the use of wireline, a strong, thin length of wire cable mounted on a powered reel. Wireline is particularly important during completion and production. Field operators can run anything from a basic downhole directional survey to the most delicate gamma ray formation log on wireline.
The first modern solution of general relativity that would characterize a black hole was found by Karl Schwarzschild in 1916, although its interpretation as a region of space from which nothing can escape was first published by David Finkelstein in 1958.
Uranus is the 7th planet in the Solar System, and the first planet discovered beyond the 5 planets that are visible with the unaided eye. So, who discovered Uranus?The discoverer was Sir William Herschel, who found it on March 13, 1781.Sir William Herschel. Even though Uranus is dim, itâs actually possible to see with the unaided eye in very dark, clear skies. But even so, nobody had ever officially recorded the movement of Uranus, so Herschel is the discoverer.ranus is the 7th planet in the Solar System, and the first planet discovered beyond the 5 planets that are visible with the unaided eye. So, who discovered Uranus?