- 行业: Oil & gas
- Number of terms: 8814
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A record of elemental concentrations derived from the characteristic energy levels of gamma rays emitted by a nucleus that has been activated by neutron bombardment. In the context of production logging, the term normally refers to the activation of silicon and aluminum to determine the quality of a gravel pack. Silicon and aluminum are activated by a neutron source to produce isotopes that decay with a half-life of 2. 3 minutes emitting a 1. 78 MeV gamma ray. These gamma rays are counted in a detector placed below the source, with a high count indicating a high quantity of silicon in a sand pack, or aluminum in a bauxite pack. The log is run slowly so that oxygen and other activated elements have decayed before the detector crosses the activated interval. <BR><BR>The carbon-oxygen log, elemental-capture spectroscopy log, pulsed-neutron spectroscopy log, aluminum-activation log and the oxygen-activation log are also examples of neutron-activation logs.
Industry:Oil & gas
A quantum-mechanical principle formulated by German physicist Werner Karl Heisenberg. It proposes that measuring either one of two related quantities, such as position and momentum, or energy and time, produces uncertainty in the measurement of the other. The error in measurement of one (for example, position) times the error in measurement of the other (for example, momentum) must be greater or equal to Planck&apos;s constant. This principle accounts for bizarre behavior of subatomic particles and implies that we can never know everything exactly.
Industry:Oil & gas
ОЗУ типа превентор используется для обеспечения начального давления управления высокого давления пренебрежением операций. Зачистки РАМН используются при устьевое давление выше, чем ограничения миску стриптизершей.
Industry:Oil & gas
A rate, or production volume, sufficient to satisfy project economics.
Industry:Oil & gas
A quantification of the degree of &apos;goodness&apos; of fit of a regression line to a data set. A value of 0. 5 represents random data with no dependence, and a coefficient of 1. 0 represents a perfect fit with absolute dependence.
Industry:Oil & gas
Качественное описание шероховатость стенок скважины. Кроме того термин относится к скважине, изменения которого диаметр быстро с глубиной. Термин обычно относится к изменениям в масштабе протоколирование измерений, нескольких дюймов до нескольких футов, и чтобы эффект это оказывает на протоколирование ответов инструмент. Складчатость может наблюдаться на суппорт журналы, журналы изображения и его влияние на измерения с небольшой глубиной исследования.
Industry:Oil & gas
A pump that can handle the complete production from a well (oil, natural gas, water and sand, for example) without needing to separate or process the production stream near or at the wellhead. This reduces the cost associated with the surface facilities. <BR><BR>Using multiphase pumps allows development of remote locations or previously uneconomical fields. Additionally, since the surface equipment, including separators, heater-treaters, dehydrators and pipes, is reduced, the impact on the environment is also reduced. <BR><BR>Multiphase pumps can handle high gas volumes as well as the slugging and different flow regimes associated with multiphase production. Multiphase pumps include twin-screw pumps, piston pumps and helicoaxial pumps.
Industry:Oil & gas
Свойства или характеристики, которые имеет форму синусоидальной волны.
Industry:Oil & gas
A provision in an oil, gas and mineral lease that perpetuates a company鈥檚 right to operate a property or concession as long as the property or concession produces a minimum paying quantity of oil or gas. Also abbreviated as HBP.
Industry:Oil & gas
A production or injection well that has a lateral or diagonal displacement with respect to the other wells in an injection pattern. The existence of an off-pattern well affects oil recovery and water/oil ratio.
Industry:Oil & gas
