# Underground Fluid

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Underground Fluid B-3 Ukhta State Technical University

1 to Determine the speed of a filtration and average speed of the movement of oil at a wall hydrodynamic of a perfect well and at r distance from a well if it is known that the layer h thickness, porosity of his m, rc well radius, a mass output of a well of Qm and density of  oil.
2 to Determine the size of coefficient of permeability of k of layer if it is known that in layer there is a one-dimensional movement of uniform liquid on Darci´s law. A hydraulic bias - i, width of gallery - In, layer thickness - h,  liquid density, its absolute viscosity  and and an output of gallery Q.
3 to Define a critical output of a well (an output at which excess in a bottomhole zone Darci´s law is broken) if it is known that permeability of layer - k, the layer h thickness, porosity of layer m, dynamic coefficient of viscosity of  oil,  oil density. rc well radius.
4 to Determine pressure at distances of r1 and g2 from a well at the flat and radial established movement of incompressible liquid on Darci´s law, knowing that permeability of layer k, the layer h thickness, pressure on ps well face, rc well radius, dynamic coefficient of viscosity of  oil,  oil density a mass output of a well of Qm.
5 to Define a mass output of Qm of absolutely gas well, considering that the filtration occurs under Darci´s law if the layer h thickness, permeability of k, dynamic coefficient of viscosity of  gas,  gas density, well radius гс, distance to a contour of food of Rk, pressure on a well face рс and pressure on a contour of food of pk.
6 to Find phase permeability for liquid kzh and kg gas at the movement of the aerated liquid, knowing a saturation liquid of a pore space  and absolute permeability of the porous environment k. The porous environment is presented by not hardpan sand.

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