Curve Mnemonic Dictionary

Mnemonics, Tools, ISLT-A

Code	ISLT-A
Technology	Acoustic
Discipline	Petrophysics
Method	WIRELINE
Description	iFlex Sonic Logging Tool

Related channels

Channel	Description
BATT	BHC Attenuation from Downhole Tool
CBL	CBL Amplitude
CBSL	CBL Amplitude (Sliding Gate)
CERP	Label Energy Peak Coherence, Receiver Array, Compressional - Monopole P&S
CERS	Label Energy Peak Coherence, Receiver Array, Shear - Monopole P&S
CMCG	CBL Cement Type Compensation Gain
DATN	Discriminated BHC Attenuation
DBI	Bond Index from Discriminated Attenuation
DCBL	Synthetic CBL from Discriminated Attenuation
DT	Delta-T (also called Slowness or Interval Transit Time)
DT_HR	High Resolution Acoustic Slowness
DTC_FT	Delta-T Compressional - DDBHC Far Tx
DTC_LT	Delta-T Compressional - DDBHC Lower Tx
DTC_RA_BHC	Delta-T Compressional, Receiver Array - BHC by Upper and Lower Transmitters
DTC_RA_FT	Delta-T Compressional, Receiver Array - Far Transmitter
DTC_RA_LT	Delta-T Compressional, Receiver Array - Lower Transmitter
DTC_RA_UT	Delta-T Compressional, Receiver Array - Upper Transmitter
DTC_TA_FT	Delta-T Compressional, Transmitter Array - Far Transmitter
DTC_TA_LT	Delta-T Compressional, Transmitter Array - Lower Transmitter
DTC_TA_UT	Delta-T Compressional, Transmitter Array - Upper Transmitter
DTC_UT	Delta-T Compressional - DDBHC Upper Tx
DTCO	Delta-T Compressional
DTHR	Delta-T High Resolution Receiver
DTL	Delta-T Long Spacing
DTLF	Delta-T Long Spacing Far
DTLN	Delta-T Long Spacing Near
DTLN_HR	High Resolution Acoustic Slowness (LS)
DTS_FT	Delta-T Shear / DDBHC Far Tx
DTS_LT	Delta-T Shear / DDBHC Lower Tx
DTS_RA_BHC	Delta-T Shear, Receiver Array - BHC by Upper and Lower Transmitters
DTS_RA_FT	Delta-T Shear, Receiver Array - Far Transmitter
DTS_RA_LT	Delta-T Shear, Receiver Array - Lower Transmitter
DTS_RA_UT	Delta-T Shear, Receiver Array - Upper Transmitter
DTS_TA_FT	Delta-T Shear, Transmitter Array - Far Transmitter
DTS_TA_LT	Delta-T Shear, Transmitter Array - Lower Transmitter
DTS_TA_UT	Delta-T Shear, Transmitter Array - Upper Transmitter
DTS_UT	Delta-T Shear / DDBHC Upper Tx
DTSM	Delta-T Shear
DTYP	Delta-T Type
DTYP_LN	Delta-T Type (LS)
FLSA	Flag for Low Sonic Amplitude
FTDV	Fraction of Slownesses Declared Valid
FTDV_LN	Fraction of Slownesses Declared Valid (LS)
FTPU	Fraction of Valid data in Preference Used
FTPU_LN	Fraction of Valid data in Preference Used (LS)
FVPU	Fraction of Valid Data in Preference Used
ISLT_DEP_TT	Depth for TT data copy indicator
ISLT_DEP_WF	Depth for TT data copy indicator
ISLT_HW_TOOL	ISLT Hardware Status
ISLT_LQC_HW_TOOL	ISLT Total Hardware LQC
LATT	Lower Attenuation from Tool
LQC_HW_STAT	Hardware Total Status
NATN	Near Attenuation
NATN_L5	Near Attenuation LowerTx-L5
NATN_U1	Near Attenuation UpperTx-R1
NBI	Bond Index From Near Attenuation
NCBL	Synthetic CBL from Near Attenuation
NPK_RA_FT	Number of STC Peaks, Receiver Array - Far Transmitter
NPK_RA_LT	Number of STC Peaks, Receiver Array - Lower Transmitter
NPK_RA_UT	Number of STC Peaks, Receiver Array - Upper Transmitter
NPK_TA_FT	Number of STC Peaks, Transmitter Array - Far Transmitter
NPK_TA_LT	Number of STC Peaks, Transmitter Array - Lower Transmitter
NPK_TA_UT	Number of STC Peaks, Transmitter Array - Upper Transmitter
PKCH_RA_FT	STC Peak Coherence, Receiver Array - Far Transmitter
PKCH_RA_LT	STC Peak Coherence, Receiver Array - Lower Transmitter
PKCH_RA_UT	STC Peak Coherence, Receiver Array - Upper Transmitter
PKCH_TA_FT	STC Peak Coherence, Transmitter Array - Far Transmitter
PKCH_TA_LT	STC Peak Coherence, Transmitter Array - Lower Transmitter
PKCH_TA_UT	STC Peak Coherence, Transmitter Array - Upper Transmitter
PKSL_RA_FT	STC Peak Slowness, Receiver Array - Far Transmitter
PKSL_RA_LT	STC Peak Slowness, Receiver Array - Lower Transmitter
PKSL_RA_UT	STC Peak Slowness, Receiver Array - Upper Transmitter
PKSL_TA_FT	STC Peak Slowness, Transmitter Array - Far Transmitter
PKSL_TA_LT	STC Peak Slowness, Transmitter Array - Lower Transmitter
PKSL_TA_UT	STC Peak Slowness, Transmitter Array - Upper Transmitter
PKTI_RA_FT	STC Peak Time, Receiver Array - Far Transmitter
PKTI_RA_LT	STC Peak Time, Receiver Array - Lower Transmitter
PKTI_RA_UT	STC Peak Time, Receiver Array - Upper Transmitter
PKTI_TA_FT	STC Peak Time, Transmitter Array - Far Transmitter
PKTI_TA_LT	STC Peak Time, Transmitter Array - Lower Transmitter
PKTI_TA_UT	STC Peak Time, Transmitter Array - Upper Transmitter
PR	Poisson's Ratio
R42R	R4 to R2 Sensitivity Ratio
RLAT	Raw Lower Attenuation from Downhole Tool
RUAT	Raw Upper Attenuation from Tool
SA_L2	Sonic Amplitude LowerTx-R2
SA_L4	Sonic Amplitude LowerTx-R4
SA_L5	Sonic Amplitude LowerTx-R5
SA_L6	Sonic Amplitude LowerTx-R6
SA_U1	Sonic Amplitude UpperTx-R1
SA_U2	Sonic Amplitude UpperTx-R2
SA_U4	Sonic Amplitude UpperTx-R4
SATN	Short Attenuation
SBI	Bond Index from Short Attenuation
SCBL	Synthetic CBL from Short Attenuation
SNR_L2	S/N Ratio LowerTx-R2
SNR_L4	S/N Ratio LowerTx-R4
SNR_L5	S/N Ratio LowerTx-R5
SNR_L6	S/N Ratio LowerTx-R6
SNR_U1	S/N Ratio UpperTx-R1
SNR_U2	S/N Ratio UpperTx-R2
SOBS	Label Borehole Size for Bias Correction
SPAA1	Sonic Peak Amplitude Array 1
SPAA2	Sonic Peak Amplitude Array 2
SPAA3	Sonic Peak Amplitude Array 3
SPJ_RA_FT	STC Slowness Projection, Receiver Array - Far Transmitter
SPJ_RA_LT	STC Slowness Projection, Receiver Array - Lower Transmitter
SPJ_RA_UT	STC Slowness Projection, Receiver Array - Upper Transmitter
SPJ_TA_FT	STC Slowness Projection, Transmitter Array - Far Transmitter
SPJ_TA_LT	STC Slowness Projection, Transmitter Array - Lower Transmitter
SPJ_TA_UT	STC Slowness Projection, Receiver Array - Upper Transmitter
STTA1	Sonic Transit Time Array 1
STTA2	Sonic Transit Time Array 2
STTA3	Sonic Transit Time Array 3
SWFA1	Sonic Waveform Array 1
SWFA2	Sonic Waveform Array 2
SWFA3	Sonic Waveform Array 3
SWNA1	Sonic Waveform Normalization Factor Array 1
SWNA2	Sonic Waveform Normalization Factor Array 2
SWNA3	Sonic Waveform Normalization Factor Array 3
TIME_STC_RA_FT	Time Index of STC Slowness Projection, Receiver Array - Far Transmitter
TIME_STC_RA_LT	Time Index of STC Slowness Projection, Receiver Array - Lower Transmitter
TIME_STC_RA_UT	Time Index of STC Slowness Projection, Receiver Array - Upper Transmitter
TT	Transit Time for CBL
TT_L6	Transit Time LowerTx-R6
TT1	Transit Time 1
TT2	Transit Time 2
TT3	Transit Time 3
TTSL	Transit Time (Sliding Gate)
UATT	Upper Attenuation from Tool
ULTR	Upper to Lower Transmitter Power Ratio
VDL	Variable Density Log
VPVS	Compressional to Shear Velocity Ratio
WDE1	Waveform Delay 1
WDE2	Waveform Delay 2
WDE3	Waveform Delay 3
WF1	Waveform 1
WF2	Waveform 2
WF3	Waveform 3

Related parameters

Parameter	Description
AMSG	Auxiliary Minimum Sliding Gate
CASF	Label Casing Function - Monopole P&S
CBAF	CBL Adjustment Factor
CBLG	CBL Gate Width
CBRA	CBL LQC Reference Amplitude in Free Pipe
CLUSTER_INT	Clustering Interval
COLL	Label Slowness Lower Limit - Monopole P&S Compressional
COUL	Label Slowness Upper Limit - Monopole P&S Compressional
CSIZ	Casing Outer Diameter
CWEI	Casing Weight
DDE1	Digitizing Delay 1
DDE2	Digitizing Delay 2
DDE3	Digitizing Delay 3
DETE	Delta-T Detection
DFAD	Digital First Arrival Detection Switch
DFAD_SLIM	Slim Sonic DFAD Computation Control
DFD	Drilling Fluid Density
DHNV_ISLT	ISLT Firmware Version
DLHS	Label Hole Diameter Source for SOBS Channel
DLSI	Depth Log Sample Interval
DLSR	Depth Log Sample Rate
DSIN	Digitizer Sample Interval
DT_ABSENT	ISLT Firmware Version
DTCM	Delta-T Computation Mode
DTCS	Compressional Delta-T Source for DTCO Channel
DTCS_SLIM	Slim Sonic Compressional Delta-T Source for DTCO Channel
DTF	Delta-T Fluid
DTMAX	Maximum Valid Value for DT
DTSS	Shear Delta-T Source for DTSM Channel
DTSS_SLIM	Slim Sonic Shear Delta-T Source for DTSM Channel
DWCO	Digitizer Word Count
FATT	Acoustic Attenuation due to Fluid
FCF	CBL Fluid Compensation Factor
FIL_LENG	Filter length
FILG	Label Fill Gap Control - Monopole P&S
FORM_SLOW	Formation Slowness
FREQ_HIGH	Filter high cut frequency
FREQ_LOW	Filter low cut frequency
GAI1	Manual Gain 1
GAI1_SSLT	SSLT Manual Gain 1
GAI2	Manual Gain 2
GAI2_SSLT	SSLT Manual Gain 2
GAI3_SSLT	SSLT Manual Gain 3
GBHCL	Group BHC Limit
GNFL	Group Near-Far Limit
GSEPL	Group Separation Limit
GSIZL	Group Size Limit
HOLE_DIA	Hole Diameter
ISLT_DFTP	Data Frames for ISLT Test Phase
ITWI_FT	STC Integration Time Window - Far Transmitter
ITWI_LT	STC Integration Time Window - Lower Transmitter
ITWI_UT	STC Integration Time Window - Upper Transmitter
LFC	Label Formation Character - Monopole P&S
LPM_FT	Label Processing Mode - Far Transmitter
LPM_LT	Label Processing Mode - Lower Transmitter
LPM_UT	Label Processing Mode - Upper Transmitter
MAHTR	Manual High Threshold Reference for first arrival detection
MATT	Maximum Attenuation
MCS	Mean Casing Slowness
MNHTR	Minimum High Threshold Reference for first arrival detection
MODE	Sonic Firing Mode (e.g. DDBHC = Depth-Derived BHC, STRA = Single Transmitter, SREV = Single Receiver
MODE_SSLT	SSLT Firing Mode
MUD_SLOW	Mud Slowness
NFLG	Normalization Flag
NFLIM	Near-Far boundary distance
NFPI_L5	Near Free Pipe Sonic Amplitude for Lower Transmitter - Receiver 5
NFPI_U1	Near Free Pipe Sonic Amplitude for Upper Transmitter - Receiver 1
NMSG	Near Minimum Sliding Gate
NMXG	Near Maximum Sliding Gate
NUMP	Number of Detection Passes
POWER_SAVE_TEST	ISLT Powersave test Mode
PROC_INT	Processing Interval
R42R	R4 to R2 Sensitivity Ratio
RATE	Firing Rate
REJREP	Reject Repeated Transit Times
RSMN	Label Shear/Compressional Minimum Ratio - Monopole P&S
RSMX	Label Shear/Compressional Maximum Ratio - Monopole P&S
RXG	Receiver Geometry - Sonic
SALL	Sonic Amplitude Lower Limit
SAS	Sonic Array Status
SBOF_FT	STC Search Band Offset - Far Transmitter
SBOF_LT	STC Search Band Offset - Lower Transmitter
SBOF_UT	STC Search Band Offset - Upper Transmitter
SBWI_FT	STC Search Band Width - Far Transmitter
SBWI_LT	STC Search Band Width - Lower Transmitter
SBWI_UT	STC Search Band Width - Upper Transmitter
SDL	Standard Deviation Acceptance Limit
SDTH	Switch Down Threshold
SEMTHR	STC Semblance Threshold
SENSOR_DIA	Standard Deviation Acceptance Limit
SFAF	Sonic Formation Attenuation Factor
SFPI	Short Free Pipe Sonic Amplitude
SFPI_L6	Short Free Pipe Sonic Amplitude for Lower Transmitter - Receiver 6
SGAD	Sliding Gate Status
SGCL	Sliding Gate Closing Delta-T
SGCW	Sliding Gate Closing Width
SGDT	Sliding Gate Delta-T
SGW	Sliding Gate Width
SHORT_FRAME_MODE	ISLT Short Frame Mode
SLEV	Signal Level for AGC
SLL	Slowness Lower Limit
SPM_FT	STC Processing Mode - Far Transmitter
SPM_LT	STC Processing Mode - Lower Transmitter
SPM_UT	STC Processing Mode - Upper Transmitter
SSTE	Slowness Step
STC_LCF	STC Low Cutoff Frequency
STHR	Separation Threshold
STLL	Label Slowness Lower Limit - Monopole Stoneley
STUL	Label Slowness Upper Limit - Monopole Stoneley
SUL	Slowness Upper Limit
SUTH	Switch Up Threshold
SWID_FT	STC Slowness Width - Far Transmitter
SWID_LT	STC Slowness Width - Lower Transmitter
SWID_UT	STC Slowness Width - Upper Transmitter
T12_TTMAX	T12 TT Intercept Maximum
T12_TTMIN	T12 TT Intercept Minimum
T3_TTMAX	T3 TT Intercept Maximum
T3_TTMIN	T3 TT Intercept Minimum
TFSI	Filter Sample Interval
TFWL	Filter Window Length
TLL_FT	STC Time Lower Limit - Far Transmitter
TLL_LT	STC Time Lower Limit - Lower Transmitter
TLL_UT	STC Time Lower Limit - Upper Transmitter
TP_FRAME	ISLT Test Phase Frame
TRCLL_SLIM	Slim Sonic Tracking Compressional Slowness Lower Limit
TRCUL_SLIM	Slim Sonic Tracking Compressional Slowness Upper Limit
TRSLL_SLIM	Slim Sonic Tracking Shear Slowness Lower Limit
TRSUL_SLIM	Slim Sonic Tracking Shear Slowness Upper Limit
TSTE	Time Step
TTPROC_ALGSEL	Algorithm Select
TWID_FT	STC Time Width - Far Transmitter
TWID_LT	STC Time Width - Lower Transmitter
TWID_UT	STC Time Width - Upper Transmitter
TXG	Transmitter Geometry - Sonic
ULTR	Upper to Lower Transmitter Power Ratio
VDLG	VDL Manual Gain
VDM	VDL Display Mode
VDM_SSLT	SSLT VDL Display Mode
ZCMT	Acoustic Impedance of Cement

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