دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: one of the extremely small particles of an atom that is ejected from a radioactive substance (such as radium or uranium) as it disintegrates. Alpha particles have a positive charge.

n: one of the extremely small particles, sometimes called rays, emitted from the nucleus of a radioactive substance such as radium or uranium as it disintegrates. Beta particles have a negative charge.

an electron emitted with high energy and velocity from a decaying nucleus.

n: Schlumberger/Anadrill LWD tool that measures resistivity at two depths of investigation. Also measures spectral gamma ray to give relative proportion of potassium, thorium, and uranium.

n: one of more than a hundred simple substances that consist of atoms of only one kind and that either singly or in combination make up all matter. For example, the simplest element is hydrogen, and one of the most abundant elements is carbon. Some elements, such as radium and uranium, are radioactive.

n: a special gamma ray log that reveals the relative amounts of radioactive uranium, thorium, and potassium in a formation. This information can help identify shales and clays.

n: a soft. black, shiny mineral of pure carbon produced when hydrocarbons are subjected to high temperahires and pressures. Used in pencils and crucibles, as a lubricant. and in atomic-energy plants to control the release of radiation from uranium fuel.

n: schlumberger wireline tool that breaks down the naturalgamma rayspectrum to differentiate between minerals such as potassium, thorium and uranium. Useful for reservoir declieaqtion, well to well correlation, cation exchange capacity studies,igneous rock r

NORM scale, usually barium or strontium sulfate scale with very low level radiation from atoms of uranium, thorium and potassium in the matrix of the scale.

abbr: naturally occurring radioactive materials.

a naturally occurring radioactive scale. Usually Barium Sulfate scale with Uranium or Radium atoms substituted into the lattice structure. Can be detected downhole with a gamma ray log.

n: the property possessed by some substances (such as radium, uranium and thorium) of releasing alpha particles, beta particles, or gamma particles as the substance spontaneously disintegrates.