Schlumberger

Mnemonics, Software product, INVASION2


CodeINVASION2
NameInvasion2
DisciplinePetrophysics
TypeAPPLICATION
DescriptionInterpretation of deep-reading resistivity measurements (Wireline and LWD Tools)

Related channels
ChannelDescription
A10H Attenuation Resistivity 10 inch Spacing at 2 MHz, Environmentally Corrected
A10L ARC Attenuation Resistivity 10 inch Spacing at 400 KHz
A16H Attenuation Resistivity 16 inch Spacing at 2 MHz, Environmentally Corrected
A16L Attenuation Resistivity 16 inch Spacing at 400 KHz, Environmentally Corrected
A22H Attenuation Resistivity 22 inch Spacing at 2 MHz, Environmentally Corrected
A22L Attenuation Resistivity 22 inch Spacing at 400 KHz, Environmentally Corrected
A28H Attenuation Resistivity 28 inch Spacing at 2 MHz, Environmentally Corrected
A28L Attenuation Resistivity 28 inch Spacing at 400 KHz, Environmentally Corrected
A34H Attenuation Resistivity 34 inch Spacing at 2 MHz, Environmentally Corrected
A34L Attenuation Resistivity 34 inch Spacing at 400 KHz, Environmentally Corrected
A40H Attenuation Resistivity 40 inch Spacing at 2 MHz, Environmentally Corrected.
A40L Attenuation Resistivity 40 inch Spacing at 400 KHz, Environmentally Corrected
ADIA Average Borehole Diameter
AFP Attenuation
AHF10 Array Induction Four Foot Resistivity A10
AHF20 Array Induction Four Foot Resistivity A20
AHF30 Array Induction Four Foot Resistivity A30
AHF60 Array Induction Four Foot Resistivity A60
AHF90 Array Induction Four Foot Resistivity A90
AHFCB10 Array Induction Four Foot Conductivity Background A10
AHFCB20 Array Induction Four Foot Conductivity Background A20
AHFCB30 Array Induction Four Foot Conductivity Background A30
AHFCB60 Array Induction Four Foot Conductivity Background A60
AHFCB90 Array Induction Four Foot Conductivity Background A90
AHO10 Array Induction One Foot Resistivity A10
AHO20 Array Induction One Foot Resistivity A20
AHO30 Array Induction One Foot Resistivity A30
AHO60 Array Induction One Foot Resistivity A60
AHO90 Array Induction One Foot Resistivity A90
AHOCB10 Array Induction One Foot Conductivity Background A10
AHOCB20 Array Induction One Foot Conductivity Background A20
AHOCB30 Array Induction One Foot Conductivity Background A30
AHOCB60 Array Induction One Foot Conductivity Background A60
AHOCB90 Array Induction One Foot Conductivity Background A90
AHORT Array Induction One Foot Rt
AHORX Array Induction One Foot Rxo
AHT10 Array Induction Two Foot Resistivity A10
AHT20 Array Induction Two Foot Resistivity A20
AHT30 Array Induction Two Foot Resistivity A30
AHT60 Array Induction Two Foot Resistivity A60
AHT90 Array Induction Two Foot Resistivity A90
AHTCB10 Array Induction Two Foot Conductivity Background A10
AHTCB20 Array Induction Two Foot Conductivity Background A20
AHTCB30 Array Induction Two Foot Conductivity Background A30
AHTCB60 Array Induction Two Foot Conductivity Background A60
AHTCB90 Array Induction Two Foot Conductivity Background A90
AOD1 Array Induction One Foot Inner Diameter of Invasion
ATR CDR Attenuation Resistivity
BHR Borehole Radius
BRAV Borehole radius average
CALI Caliper
COHERENCE0 Ratio of the reconstructed log to the original measured log (channel 0) computed at the center of each bed
COHERENCE1 Ratio of the reconstructed log to the original measured log (channel 1) computed at the center of each bed
COHERENCE2 Ratio of the reconstructed log to the original measured log (channel 2) computed at the center of each bed
COHERENCE3 Ratio of the reconstructed log to the original measured log (channel 3) computed at the center of each bed
COHERENCE4 Ratio of the reconstructed log to the original measured log (channel 4) computed at the center of each bed
COHERENCE5 Ratio of the reconstructed log to the original measured log (channel 5) computed at the center of each bed
DEVI Hole Deviation
DI Diameter of Invasion
DPAZ True Dip Azimuth
DPTR True Dip Angle
FLAG General Indicator Flag
FVPD Volume of mud filtrate per unit depth
GREZ Global Reconstruction Error - Standard Resolution
HAZI Hole Azimuth Relative to True North
HLDU Uncorrected Laterolog Deep Resistivity
HLLD_REC2D Reconstructed HALS Laterolog Deep Resistivity with 2D forward modeling
HLLS_REC2D Reconstructed HALS Laterolog Shallow Resistivity with 2D forward modeling
HLSU Uncorrected Laterolog Shallow Resistivity
HRDU Uncorrected High Resolution Deep Resistivity
HRLD_REC2D Reconstructed High Resolution Deep Resistivity with 2D forward modeling
HRLS_REC2D Reconstructed High Resolution Shallow Resistivity with 2D forward modeling
HRSU Uncorrected High Resolution Shallow Resistivity
IDER Deep Induction Enhanced Resolution Phasor Resistivity
IDPH Induction Deep Phasor Resistivity
ILD Induction Deep Resistivity
ILM Induction Medium Resistivity
IMER Medium Induction Enhanced Resolution Phasor Resistivity
IMPH Induction Medium Phasor Resistivity
INVASION_FLAG Flag indicating that the bed is invaded (1=Invaded, 0=Not Invaded)
LLD Laterolog Deep Resistivity
LLD_REC2D Reconstructed Laterolog Deep Resistivity with 2D forward modeling
LLS Laterolog Shallow Resistivity
LLS_REC2D Reconstructed Laterolog Shallow Resistivity with 2D forward modeling
MAX_ROS Maximum Residual Oil Saturation
MODEL_NUMBER Model number
MRES Mud Resistivity
OCFG Off Chart Flag for Tornado Chart Interpretation
P10H Phase Shift Resistivity 10 inch Spacing at 2 MHz, Environmentally Corrected.
P10L ARC Phase Shift Resistivity 10 inch Spacing at 400 KHz
P16H Phase Shift Resistivity 16 inch Spacing at 2 MHz, Environmentally Corrected.
P16L Phase Shift Resistivity 16 inch Spacing at 400 KHz, Environmentally Corrected.
P22H Phase Shift Resistivity 22 inch Spacing at 2 MHz, Environmentally Corrected.
P22L Phase Shift Resistivity 22 inch Spacing at 400 KHz, Environmentally Corrected.
P28H Phase Shift Resistivity 28 inch Spacing at 2 MHz, Environmentally Corrected.
P28L Phase Shift Resistivity 28 inch Spacing at 400 KHz, Environmentally Corrected.
P34H Phase Shift Resistivity 34 inch Spacing at 2 MHz, Environmentally Corrected.
P34L Phase Shift Resistivity 34 inch Spacing at 400 KHz, Environmentally Corrected.
P40H Phase Shift Resistivity 40 inch Spacing at 2 MHz, Environmentally Corrected.
P40L Phase Shift Resistivity 40 inch Spacing at 400 KHz, Environmentally Corrected.
PHI Porosity
PHI_BOT Porosity at the bottom of the zone
PSDI Pore Size Distribution Index of the rock in Capillary Pressure equation
PSR Compensated Phase Shift Resistivity
PWFLOW Predicted flow fraction of water relative to total flow
QV Charge Concentration Per Unit Pore Volume
RAD2 Radius 2
RANN Invasion Annulus Resistivity
RI Radius of Invasion
RI_BOT Radius of Invasion at the bottom of the zone
RLA0_ECC Eccentering Corrected Resistivity Mode 0
RLA0_REC2D Reconstructed HRLT resistivity (channel 0) with 2D forward modeling
RLA0_UNCORR Uncorrected Resistivity from Computed Focusing Mode 0
RLA1_ECC Eccentering Corrected Resistivity Mode 1
RLA1_REC2D Reconstructed HRLT resistivity (channel 1) with 2D forward modeling
RLA1_UNCORR Uncorrected Resistivity from Computed Focusing Mode 1
RLA2_ECC Eccentering Corrected Resistivity Mode 2
RLA2_REC2D Reconstructed HRLT resistivity (channel 2) with 2D forward modeling
RLA2_UNCORR Uncorrected Resistivity from Computed Focusing Mode 2
RLA3_ECC Eccentering Corrected Resistivity Mode 3
RLA3_REC2D Reconstructed HRLT resistivity (channel 3) with 2D forward modeling
RLA3_UNCORR Uncorrected Resistivity from Computed Focusing Mode 3
RLA4_ECC Eccentering Corrected Resistivity Mode 4
RLA4_REC2D Reconstructed HRLT resistivity (channel 4) with 2D forward modeling
RLA4_UNCORR Uncorrected Resistivity from Computed Focusing Mode 4
RLA5_ECC Eccentering Corrected Resistivity Mode 5
RLA5_REC2D Reconstructed HRLT resistivity (channel 5) with 2D forward modeling
RLA5_UNCORR Uncorrected Resistivity from Computed Focusing Mode 5
RMFA Apparent Mud Filtrate Resistivity
ROS Residual Oil Saturation
RT True Resistivity
RT_BOT True Resistivity at the bottom of the zone
RV Vertical Formation Resistivity
RWA Apparent Formation Water Resistivity
RWB Bound Formation Water Resistivity
RXO Flushed Zone Resistivity
RXO_BOT Flushed Zone Resistivity at the bottom of the zone
RXOV Flushed Zone Zone Resistivity (Vertical)
SFLU SFL Resistivity Unaveraged
SWD SW calculated by DPQL
SWI Irreducible Water Saturation
TEMP Computed Borehole Temperature
VC Cable Voltage
VCL_BOT Volume Fraction of Clay at the bottom of the zone
WCUT Water Cut

Related parameters
ParameterDescription
A Constant A of the Archie Formation Factor - Porosity Equation
ACCELERATION_MODE Inversion Acceleration Mode (options: Slow Medium Fast)
AVER Averaging Method
BHT Bottom Hole Temperature
BS Bit Size
C_WS Intergranular "C" coefficient in Waxman-Smits equation
CATION_CONCENTRATION The concentration of cations, the positively charged particles, in the solution of an electrolyte.
DEVI Well Section Deviation
INVASION_FLAG Symbol representing invaded bed 1 or non invaded beds 0
M_WS Intergranular "m" exponent in Waxman-Smits equation
MAX_CORRECTION_FACTOR Maximum Correction Factor for Log Reconstruction
MID_AVG_SWITCH Switch: use center bed reading or bed average value as squared bed value? (options: Center Average)
MIN_CORRECTION_FACTOR Minimum Correction Factor for Log Reconstruction
MONOTONIC_OPTION Option to constrain results to be monotonic or not
MRES Mud Resistivity
MST Mud Sample Temperature
N N Exponent in SW Formula
NB_ANNULI Number of Annuli for a given Annuli Formation Model
NPXM Neutron Porosity of Special Mineral
PHI Porosity
RMF Mud Filtrate Resistivity
RW Connate Water Resistivity
RWB Bound Water Resistivity
RWT Connate Water Temperature
TFOR Temperature of Formation
THRESHOLD Generic Threshold Value
TSIZ_ARC ARC Tool Size
WSAT Water Saturation


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