دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a greenish-yellow, acrid gas (CI) that irritates the skin and mucous membranes and causes breathing difficulties. chlorine log n: a record of the presence and concentration of chlorine in oil reservoirs. See chlorine survey.

a multipoint flow test measuring skin at each flow rate. When plotted, the intersection of the best fit line with the y-axis (skin) at zero flow rate yields the mechanical skin.

one of several materials that reduce the stability of the bubble skin in a foam and cause the foam to break.

n: the reduction of permeability in a reservoir rock caused by the invasion of drilling fluid and treating fluids to the section adjacent to die wellbore. It is often called skin damage.

n: damage to the productivity of a well resulting from invasion into the formation by mud particles or mud filtrates. Asphalt from crude oil will also damage some formations.

an obstruction to flow. Usually a reduction of permeability.

a flow test in which the flow rate is measured at four drawdowns to estimate how skin changes at each rate. Useful for identifying non Darcy skin or turbulent skin.

n: a powdered resin coating that forms a skin over pipe when applied to its heated steel surface. Usually applied at the mill.

n: a flammable, colourless gaseous compound of hydrogen and sulphur (H2S),which in small amounts has the door of rotten eggs. Sometimes found in petroleum, it causes the foul smell of petroleum fractions. In dangerous concentrations, it is extremely corrosive and poisonous, causing damage to skin. eyes, breathing passages, and lungs and attacking and paralysing the nervous system, particularly that part controlling the lungs and heart. In large amounts, it deadens the sense of smell. Also called hepatic gas or sulphureted hydrogen.

(IPR) n: the relation between the midpoint pressure of the producing reservoir and the liquid inflow rate of a producing well.

the relationship between reservoir or pore pressure, flowing bottom hole pressure, and production rate. Can be calculated from reservoir properties (reservoir pressure, permeability, skin) or can be a curve fitted to experimental data from the well.

n: a material that irritates the skin very little and that is used as an odourless solvent, reaction diluent, and in some proprietary formulations.

n: the process of disking, or tilling. low-toxicity wastes into surface soil;land farming.