DEEP SEA DRILLING PROJECT
ACRONYMS USED FOR WIRELINE SCHLUMBERGER TOOLS
BHC |
Borehole Compensated Sonic Tool |
CNL |
Compensated Neutron Log |
DIL |
Dual Induction Log |
DLL |
Dual Laterolog |
EL |
Electrical Log (Normal 16", Normal 64", Lateral 18'8") |
FDC |
Formation Density Compensated Tool |
GGD |
Gamma-Gamma Density Tool |
GNT |
Gamma-Neutron Tool |
GR |
Natural Gamma Ray Tool |
HRT |
High Resolution Temperature Log |
IEL |
Induction Electrical Log (Normal 16", R6FF40) |
ISF |
Induction Spherically Focused Tool |
LL3 |
Laterolog 3 |
LL8 |
Laterolog 8 |
LSS |
Long Spacing Sonic Tool |
MCD |
Mechanical Caliper Device |
NGT |
Natural Gamma Ray Spectrometry Tool |
SP |
Spontaneous Potential |
ACRONYMS USED FOR WIRELINE GEARHART-OWEN TOOLS
BHC |
Borehole Compensated Sonic Tool |
CL |
Caliper Log |
CDL |
Compensated Density Log |
GR |
Natural Gamma Ray Tool |
IEL |
Induction Electrical Log (Normal 16", R6FF40) |
LL3 |
Laterolog 3 |
NL |
Neutron Log |
TEMP |
Temperature Tool |
ACRONYMS USED FOR WIRELINE DRESSER ATLAS TOOLS
AL |
Acoustic Log |
CL |
Caliper Log |
EL |
Electrical Log (Normal 16", Normal 64", Lateral 18'8") |
SP |
Spontaneous Potential |
ACRONYMS USED FOR WIRELINE WELEX TOOLS
EL |
Electrical Log (Normal 16", Normal 64", Lateral 18'8) |
SP |
Spontaneous Potential |
OTHER TOOLS
MAGN |
Russian Magnetometer/Susceptibility Tool |
ACRONYMS AND UNITS USED FOR DATA CHANNELS
ASN |
EL Amplified Short Normal (Ωm) |
CALI |
CL/MCD Caliper (in) |
CGR |
NGT Computed (Th+K) Gamma Ray (API units) |
CILD |
IEL Deep Induction Conductivity (mS/m). Used for the conductivity from the IEL tool (mS/m) |
COND |
LL3/LL8 Conductivity (mS/m) (for compatibility with more recent software) |
CS |
Cable Speed (m/hr) |
DIFF |
Mean-Median Difference, computed (μs/ft) |
DRHO |
CDL/FDC Bulk Density Correction (g/cm3) |
DT |
BHC/AL Transit Time in BHC (μs/ft) |
DT |
LSS Short Spacing Transit Time (10'-8' spacing; μs/ft) |
DTL |
LSS Long Spacing Transit Time (12'-10' spacing; μs/ft) |
ETIM |
Elapsed Time (s) |
GR |
GR/GNT Natural Gamma Ray (API units) |
GRAD |
Temperature Gradient (mK/m) |
HX |
MAGN X-component of the magnetic field (γ or nT) |
HY |
MAGN Y-component of the magnetic field (γ or nT) |
IL |
IEL Induction Resistivity from IEL tool (Ωm) |
ILD |
DIL Deep Resistivity (Ωm) |
ILM |
DIL Medium Resistivity (Ωm) |
LL3 |
LL3 Laterolog (Ωm) |
LL8 |
LL8 Laterolog (Ωm) |
LLD |
DLL Laterolog Deep (Ωm). Sometimes used instead of LL3. |
LLS |
DLL Laterolog Shallow (Ωm) |
MEAN |
Mean Transit Time, computed (μs/ft) |
MEDIAN |
Median Transit Time, computed (μs/ft) |
NPHI |
CNLNeutron Porosity (%) |
PEF |
CDL Photoelectric Effect (barns/e-) |
POINTS |
Number of Transmitter-Receiver Pairs Used in the Sonic processing |
POTA |
NGT Potassium (wet wt. %) |
RIL |
IEL Induction Resistivity from IEL tool (alternate name for IL; Ωm) |
RHOB |
CDL/FDC Bulk Density (g/cm3) |
RNEU |
GNT/NL Raw Neutron (API units) |
RRHO |
GGD Raw Density (cps) |
SFLU |
DIL /ISF Spherically Focused Log (Ωm) |
SGR |
NGT Standard (Total) Gamma Ray (API units) |
SN |
IEL Short Normal (Ωm) |
SP |
SP Spontaneous Potential (mV) |
SUSC |
MAGN Magnetic Susceptibility (x 4π x 10-6 SI) |
TEMP |
HRT/TEMP Temperature (°C) |
TENS |
Tension (lb) |
THOR |
NGT Thorium (ppm) |
TT1 |
LSS Transit Time (10' spacing; μs) |
TT2 |
LSS Transit Time (8' spacing; μs |
TT3 |
LSS Transit Time (12' spacing; μs) |
TT4 |
LSS Transit Time (10' spacing; μs) |
URAN |
NGT Uranium (ppm) |
VP |
BHC/AL Compressional Wave Velocity (km/s), computed from DT |
VP1 |
Compressional Wave Velocity (LSS Short Spacing or Mean Transit Time; km/s) |
VP2 |
Compressional Wave Velocity (LSS Long Spacing or Median Transit Time; km/s) |
Z |
MAGN Vertical component of the magnetic field (γ or nT) |