Pore pressure definition

Pore pressure means the pressure of a fluid held within spaces between particles (i.e. pore space) in a rock.
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Examples of Pore pressure in a sentence

  • Saha, University of Melbourne, Australia (I-376) Pore pressure measurement during cake filtration, E.

  • All tension calculations assume air weight Frac gradient at surface casing shoe = 13.0 ppg Pore pressure at surface casing shoe = 8.33 ppg Pore pressure at prod casing shoe = 8.33 ppg Gas gradient = 0.115 psi/ft All casing shall be new or, if used, inspected and tested.

  • Pore pressure is the pressure exerted by fluids in the pore space of the formation being drilled.

  • Pore pressure data can be used in an effective stress analysis, which can indicate a state of impending failure not apparent from a total stress (Q) analysis.

  • Pore- pressure increase, thermal stresses, volume change, chemical alteration, stress redistribution, and subsidence are just a few of the proposed mechanisms.

  • Gao, B., Flemings, P.B., 2017, Pore pressure within dipping reservoirs in overpressured basins, Marine and Petroleum Geology, 80, 94-111, doi:http://dx.doi.org/10.1016/j.marpetgeo.2016.11.014.

  • All tension calculations assume air weightFrac gradient at surface casing shoe = 13.0 ppg Pore pressure at surface casing shoe = 8.33 ppg Pore pressure at prod casing shoe = 8.33 ppg Gas gradient = 0.115 psi/ft CONFIDENTIALAll casing shall be new or, if used, inspected and tested.

  • Pore pressure prediction of Block A based available wells data by testing two methods (Eaton & Bowers), choose one of the best method to best represent the pore pressure model and optimize the pore pressure model to match the actual well data based on geological observation.

  • Pore pressure in the sample is measured in the centre of the lower pressure head.

  • Similarly, Gardner (1956) and Corey (1957) respectively proposed a transient and a steady state method of measuring the water permeability coefficient as a function of the degree of saturation.Geotechnical engineers started at that time to investigate the water retention properties of soil (Croney 1952) and a synthesis of pioneering researches in unsaturated soils was made in 1961 (Conference on Pore pressure and suction in soils, London).

Related to Pore pressure

  • Pressure means the total load or force per unit area acting on a surface.

  • Reid vapor pressure means the vapor pressure of crude oil or other volatile petroleum products at 100 degrees Fahrenheit as determined by the latest edition of ASTM D6377 (RVPE): Standard Test Method for Determination of Vapor Pressure of Crude Oil.

  • Backpressure means a pressure (caused by a pump, elevated tank or piping, boiler, or other means) on the consumer's side of the service connection that is greater than the pressure provided by the public water system and which may cause backflow.

  • True vapor pressure means the equilibrium partial pressure exerted by a petroleum liquid as determined in accordance with methods described in American Petroleum Institute (API) Bulletin 2517, Evaporation Loss from External Floating Roof Tanks, 1980. The API procedure may not be applicable to some high viscosity or high pour crudes. Available estimates of true vapor pressure may be used in special cases such as these.

  • Pressure vessel means containers for the containment of pressure, either internal or external. This pressure may be obtained from an external source or by the application of heat from a direct or indirect source, or any combination thereof.

  • Operating pressure means the pressure at which the parts of an irrigation system are designed by the manufacturer to operate.

  • Working pressure means the settled pressure of a compressed gas at a reference temperature of 15 °C in a full pressure receptacle;

  • Positive pressure respirator means a respirator in which the pressure inside the respiratory inlet covering exceeds the ambient air pressure outside the respirator.

  • Low water pressure means water pressure below the regulatory reference level which is the minimum pressure when demand on the system is not abnormal.

  • Design pressure means the hydrostatic pressure for which each structure or appliance assumed watertight in the intact and damage stability calculations is designed to withstand.

  • Electrostatic spray means a method of applying a spray coating in which opposite electric charges are applied to the substrate and the coating. The coating is attracted to the substrate by the electrostatic potential between them.

  • Noise means two times the root mean square of ten standard deviations, each calculated from the zero responses measured at a constant frequency which is a multiple of 1,0 Hz during a period of 30 seconds.

  • Finished water means the water that is introduced into the distribution system of a public water system and is intended for distribution and consumption without further treatment, except as treatment necessary to maintain water quality in the distribution system (e.g., booster disinfection, addition of corrosion control chemicals).

  • Sewage sludge weight means the weight of sewage sludge, in dry U.S. tons, including admixtures such as liming materials or bulking agents. Monitoring frequencies for sewage sludge parameters are based on the reported sludge weight generated in a calendar year (use the most recent calendar year data when the NPDES permit is up for renewal).

  • Slug means any discharge of water, sewage, or industrial waste which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than fifteen (15) minutes more than five (5) times the average twenty-four (24) hour concentration or flows during normal operation.

  • Tank means an enclosed space which is formed by the permanent structure of a ship and which is designed for the carriage of liquid in bulk.

  • Blend means seed consisting of more than one variety of a kind, each in excess of five percent by weight of the whole.

  • Recycled water or “reclaimed water” means treated or recycled waste water of a quality suitable for non-potable uses such as landscape irrigation and water features. This water is not intended for human consumption.

  • Invasive plant species means species of plants not historically found in California that spread outside cultivated areas and can damage environmental or economic resources. Invasive species may be regulated by county agricultural agencies as noxious species. Lists of invasive plants are maintained at the California Invasive Plant Inventory and USDA invasive and noxious weeds database.

  • Blendstock means and includes any petroleum product component of motor fuel, such as naphtha, reformate, or toluene; or any oxygenate that can be blended for use in a motor fuel.

  • Biomass means the biodegradable fraction of products, waste and residues from biological origin from agriculture (including vegetal and animal substances), forestry and related industries including fisheries and aquaculture, as well as the biodegradable fraction of industrial and municipal waste;

  • Vessels shall have the meaning set forth in the recitals.

  • Plant canopy means the square footage dedicated to live plant production and does not include areas such as office space or areas used for the storage of fertilizers, pesticides, or other products.

  • Load means energy consumed by Customers together with allocated losses and unaccounted for energy;

  • Slash means all debris created on the Work area by the precommercial thinning operation.

  • Slug loading means any pollutant, including oxygen demanding pollutants, released in a discharge at a flow rate and/or pollutant concentration as to cause interference in the POTW.