دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: Schlumberger wireline tool that measures phase shift and attenuation of a 1100 MHz wave. Used for Hydrocarbon identification independent of formation water salinity, thin bed detection, Hydrocarbon saturation and mobility and to evaluate invaded zones.

n: water that has a large quantity of salt, especially sodium chloride, dissolved in it;salt water.

n: Dissolving a great quantity of salt, especailly sodium chloride. Usually used to make up salt water drilling fluid.

a mixture of water and a soluble salt. Most common brines are sodium chloride NaCl, potassium chloride KCl and calcium chloride CaCl2. Brine densities may range from 8.33 to > 19 lb/gal (1 to >2.28 g/cc). The USGS definition of a brine is a salinity of mo

n: a record that indicates the presence of hydrocarbons by measuring carbon atoms and that reveals the presence of water by measuring oxygen atoms. Oil and water saturations can be closely approximated without the requirement of adequate salinity of known concentration to calculate saturations (as in resistivity and pulsed neutron surveys).

a cased hole log, using gamma ray capture by chlorine atoms, that helps estimate the salinity or water behind pipe.

n: See salinity logging.

n: a special type of radioactivity- logging survey used to measure die relative amount of chlorine in the formation. Rocks with low chlorine content are likely to contain gas or oil;rocks with high chlorine content usually contain salt water only.

n: See salinity logging.

n: an instrument that records an ocean currents speed and direction (along with temperature, salinity, pressure, and other variables). The current meter is moored in position by an anchor or weight on the ocean bottom that is connected to a float at the surface.

n: The formation water which is released by cuttings changes the resistance and chloride content of drilling fluid because the salinity of formation is different with drilling fluid. Drawing curve of the chloride increment with well depth. It can be a method

n: A chemical that causes a dispersed colloidal system (such as clay) to coagulate and form flocs. Most flocculants are either multivalent cations such as calcium, magnesium and aluminum, or long-chain polymers. High pH, high salinity and high temperature ca

Materials used to increase visicosity. They cause colloidal particles to group into bunches or flocs.

n: a measure of the electrical resistance of fluids in a formation. formation sensitivity n: the tendency of certain producing formations to react adversely to invading filtrates.

a measurement of the electrical resistivity of a formation. The measurement will be significantly affected by the type of fluid and the salinity of water based fluids within the pores of the rock.