The density correction (DRHO) curve (Fig. F88) is calculated from the difference between the short- and long-spaced density measurements and provides a further indication of the quality of the bulk density data. DRHO values in excess of 0.1 g/cm 3 indicate unreliable density data.

Bulk Density Correction - DRHO - oilfield abbreviation and dictionary, oil & gas industry abbreviation source, boe definition, bbl, drilling, reservoir engineering, production technology, unit converter, Acronym , PetroBasics,Petroleum Engineering Database including abbreviations and …

The differential caliper log (DCAL), which gives the distance between the tool sensor and the wall of the borehole as recorded by the LWD density tool, is the best indicator of borehole conditions. The DCAL values are >1 in over the uppermost 50 mbsf of the hole, showing washouts that have degraded the near-surface LWD data.

A log that shows the magnitude of the correction applied to the long spacing detector of a density measurement. When delta rho is above a certain value, typically ±0.15 g/cm 3, the correction may no longer be accurate, and needs to be examined in more detail. Delta rho is also used as a qualitative indicator of borehole rugosity.

2013年12月23日 · 地层真电阻率 Rxo flushed zone formation resistivity 冲洗带地层电阻率 Ild deep investigate induction log 深探测感应测井 Ilm medium investigate induction log 中探测感应测井 I ... 指数。R1——1米底部梯度电阻率。RT——4米底部梯度电阻率。SFLU——球型聚焦电阻率。DRHO——密度校正值 ...

This paper provides a fundamental overview of well log interpretation, emphasizing its role in determining rock characteristics critical for hydrocarbon exploration. It discusses various logging methods, including open and cased hole logging, and introduces basic concepts such as porosity, lithology, and resistivity.

2020年7月6日 · Use density log correction curve (DRHO) to isolate spurious density measurements. Density data was assumed to be inaccurate where the corresponding DRHO value is greater than 0.2 g/cm 3. The caliper log provides …

Cover the fundamentals of log analysis for interpreting open-hole and LWD logs. Present basic log analysis principles, petrophysical calculations, and interpretation techniques which can be applied to routine wireline and LWD logs.

Density Logs. Learn density log basics for uncompensated, compensated, litho-density, and 90' Offset tools, bad hole effects, porosity scales, examples.

Log¶ class petropy.Log (file_ref=None, drho_matrix=2.71, **kwargs) [source] ¶ Subclass of LASFile to provide an extension for all petrophysical calculations.