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.
This is the point between space where light can escape from the black hole's gravitational field and the space where it cannot. Although the singularity inside the black hole is infinitely small the black hole would appear to be the size of its event horizon, and to all effects is.he first real study into the phenomenon was undertaken by Karl Schwarzchild in 1916 who derived an equation for the Schwarzchild Radius of a black hole (Rs = GM / c^2, where Rs is the Schwarzchild radius, G is Newton's gravitational constant, M is the mass of the blackhole and c the speed of light).