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  2. Reservoir engineering - Wikipedia

    en.wikipedia.org/wiki/Reservoir_engineering

    The dynamic model combines the static model, pressure- and saturation-dependent properties, well locations and geometries, as well as the facilities layout to calculate the pressure/saturation distribution into the reservoir, and the production profiles vs. time.

  3. Glossary of construction cost estimating - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_construction...

    A Allocation of costs is the transfer of costs from one cost item to one or more other cost items. Allowance - a value in an estimate to cover the cost of known but not yet fully defined work. As-sold estimate - the estimate which matches the agreed items and price for the project scope. B Basis of estimate (BOE) - a document which describes the scope basis, pricing basis, methods ...

  4. Goff–Gratch equation - Wikipedia

    en.wikipedia.org/wiki/Goff–Gratch_equation

    e * is the saturation water vapor pressure T is the absolute air temperature in kelvins T st is the steam-point (i.e. boiling point at 1 atm.) temperature (373.15 K) e * st is e * at the steam-point pressure (1 atm = 1013.25 hPa) Similarly, the correlation for the saturation water vapor pressure over ice is:

  5. Infiltration (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Infiltration_(hydrology)

    The maximum rate at that water can enter soil in a given condition is the infiltration capacity. If the arrival of the water at the soil surface is less than the infiltration capacity, it is sometimes analyzed using hydrology transport models , mathematical models that consider infiltration, runoff, and channel flow to predict river flow rates ...

  6. Groundwater recharge - Wikipedia

    en.wikipedia.org/wiki/Groundwater_recharge

    In 2007, on the recommendations of the International Water Management Institute, the Indian government allocated ₹ 1,800 crore (equivalent to ₹ 54 billion or US$630 million in 2023) to fund dug-well recharge projects (a dug-well is a wide, shallow well, often lined with concrete) in 100 districts within seven states where water stored in ...

  7. Hydraulic conductivity - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_conductivity

    the rate of rise of the water level in the hole is recorded; the K-value is calculated from the data as: [8] = where: K is the horizontal saturated hydraulic conductivity (m/day) H is the depth of the water level in the hole relative to the water table in the soil (cm): H t = H at time t; H o = H at time t = 0

  8. Construction estimating software - Wikipedia

    en.wikipedia.org/wiki/Construction_estimating...

    Construction cost estimating software is computer software designed for contractors to estimate construction costs for a specific project. A cost estimator will typically use estimating software to estimate their bid price for a project, which will ultimately become part of a resulting construction contract. Some architects, engineers ...

  9. Drawdown (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Drawdown_(hydrology)

    Static level is the level of water in the well when no water is being removed from the well by pumping. [8] Water table is the upper level of the zone of saturation, an underground surface in which the soil or rock is permanently saturated with water. [9] Well yield is the volume of water per unit time that is produced by the well from pumping. [8]