The upstream pressure on a rock sample is 0.113MPa and the downstream pressure is 0.1MPa. Under this pressure difference, a gas with the viscosity of 0.018 mPa·s flows through the rock sample. The diameter of this sample is 2.5cm, its length is 2.8cm. The volumetric flow rate at the outlet face is 0.514cm3/s. Calculate the gas permeability of this rock sample.

Q: . From petrographic analysis, an igneous rock was found to be composed of a mixture of 30% quartz,…

A:

Q: 6. A large piece of dry rock has a mass of 2,350 kg. and a volume of 0.925 m³. The specific gravity…

A:

Q: a. Determine the equivalent horizontal coefficient of permeability b. Determine the equivalent…

A: The problem is asking us to find the equivalent horizontal and vertical coefficients of permeability…

Q: For the seepage situation shown below, calculate the effective vertical stress in kPa at point A.…

A: Given data in question  Saturated weigth 2100 kg/m3 Depths Downward seepage condition  To find out…

Q: An oil having viscosity 0.08 N-s/m2, specific weight 8829 N/m³, density 900 kg/m³ flows at the rate…

A:

Q: A layer of sand 6 m thick lies beneath a clay stratum 5 m thick and above abed thick shale Inorder…

A: A )  Given data : Thickness of sand layer = 6 m Thickness of clay stratum = 5 m Discharge = 0.01…

Q: a. How high will the water rise in the piezometer immediately after the application of the surface…

A: Given data : This is a problem of Geo-Tech Engineering.

Q: Explain the lithification process in the formation of the sedimentary rock

A:

Q: Permeability tests were carried out on the samples collected from two different layers as shown in…

A:

Q: From the figure shown, the thickness of permeable layer is 1.1m making an angle of 14 degrees with…

A:

Q: A saturated rock specimen has unit weight of 22.00 kN/m3 and dry unit weight of 20.50 kN/m3.…

A:

Q: From the following rocks prepare a list in order of their decreasing unconfined compressive…

A: The utmost compressive stress that a plastic specimen can sustain before rupturing or deforming by a…

Q: A layer of sand 6 m thick lies beneath a clay stratum 5 m thick and above abed thick shale Inorder…

A:

Q: Q.4 Calculate the temperature, hydrostatic pressure, lithosting pressure, and the effective pressure…

A: Note: We'll answer the first question since the exact one wasn't specified. Please resubmit a new…

Q: Problem 8 A permeability pumping test was carried out through a confined aquifer. The aquiclude…

A:

Q: when flowing through the same rock at 20°C? want weight = 8.44 kN/m³) 6.10 The maximum dry unit…

A: Given data - Relative compaction = 90% Max. dry unit weight in lab = 16 KN/m3 Gs = 2.7 k1 = 0.03…

Q: Find the effective average permeability of the deposit in the vertical direction (mm/s).

A: Effective average permeability of the deposit in the vertical direction: option C

Q: Absolute and effective porosity is a kind of measurement of porosity percentage in a reservoir rock,…

A: Absolute porosity is the ratio of total pore volume and bulk volume of rock, whereas Effective…

Q: By referring to the figure B, calculate the dry unit weight for 2nd layer (depth below existing…

A: Total stress is defined as stress developed due to the total weight of the soil per unit area. Pore…

Q: 1. (30 pts) The soil profile shown below consists of 10 meters of sandy silt overlying gravel. The…

A: Step 1:Step 2: Step 3: Step 4:

Q: 7.22 Refer to Figure 7.24. The following data were collected during the field per- meability…

A:

Q: A cube-shaped rock with sides of length 1.2 m has a matrix permeability of 0.8 mD and four 0.65 cm…

A: Given data: Permeability, K=0.8 mD Cylinder diameter=0.0065 m Height of cube=1.2 m Calculate the…

Q: A confined aquifer of 15 m constant thickness is sandwiched between two aquicludes as shown in the…

A: A confined aquifer is sandwiched between two aquicludes as shown,The head indicated by two…

Q: 5 m +A 5 m 5 m 10 m

A: Given: A rectangular loaded area as shown below Required to determine a) Stress at a depth of 5 m…

Q: Find out the change in length in a rock mass. while the strain recorded is 3% and the original…

A: My dear  Given Strain recorded Original length Volume at outlet

Q: An oil having viscosity 0.08 N-s/m², specific weight 8829 N/m³, density 900 kg/m³ flows at the rate…

A: Given- viscosity μ=0.08 N-s/m2Specific weight γ=8829 N/m3density ρ=900 kg/m3discharge Q=5.4×10-3…

Q: The results of two drained triaxial tests on a saturated clay are as follows: chamber pressure…

A:

Q: on at the bottom of th ostatic pore pressure nodels at 2250m:

A: Numerical analysis -the part of arithmetic that arrangements with the turn of events and utilization…

Q: For the soil profile in the Figure 4 plot the distribution of total and effective vertical stresses…

A: For silt:ρ=1880Kgm3Gs=2.65w=10.5%D10=0.02 mmFor clay:Gs=2.7w=35%

Q: In this model, which layers are confined aquifers?

A:

Q: A Shelby tube has outside diameter of 76.2 mm and wall thickness of 1.651 mm. What is the area ratio…

A: outside diameter, wall thickness, t= 1.651 mmTo find:Area ratio of the tube

Q: A large piece of dry rock has a mass of 2450 kg and volume of 0.925 m³. The specific gravity of the…

A:

Q: IV) A granitic rock is composed of a mixture of 40% quartz, 25% plagioclase, and 35 % augite. Its…

A: Fissure: Fissure is generally known as a fracture or crack in a rock. It refers to the non-planar…

Q: 5. A layer of clay, at a depth below the groundwater surface, experiences a rapid increase in…

A: Given data- Increase in pressure ∆p=200 kN/m2coefficient of compression power m=3.8×10-5 m2/kNhere…

Q: Homework 1: a sample of rock has a total mass of 300 gm and a dry mass of 250 gm with a real…

A: This question is related to the Soil Mechanics.

Q: 11.15 For a normally consolidated = 2 ton/ft² • σ clay, the following are given: e = e = 1.21 • + A'…

A:

Q: We have a land well where the geothermal gradient is 0.03 C/m. The surface temperature is 68…

A: Since, the question number to be solved is not specified, the solution for Question 01 is as…

Q: 2. Give the pressure that exists in the lowest sand layer of the profile (shown in the piezometer in…

A: Given Data Sand γsat=14.6 kN/m3 (above WL) γsat=16 kN/m3 (below WL) γsat=17.6 kN/m3 9 (below…

Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.