| Well Log Code | Code Definition |
|---|
| AUD |
Noise Log, Audio, Experimental Noise Log |
| BHV |
Velocity |
| BIL |
Borehole Image Log |
| BPP |
Borehole Profile Plot |
| BT |
Borehole televiewer |
| CAL |
Caliper |
| CBL |
Cement Bond, Cement Curve, Cement Quality |
| CCL |
Casing collar locator |
| CHL |
Cased hole neutron |
| CIL |
Casing inspection log |
| CP |
Computer Process, Cyberlook, Complex lithology, Hydrocarbon Identification, Laserlog |
| CPTVD |
Computer Processed (TVD) |
| D |
Density, Spectral density, Slim hole density |
| DC |
Depth Correlation Log |
| DIR |
Deviation survey, Borehole directional survey |
| DLL |
Dual laterlog |
| DM |
Dip Meter, Continuous dipmeter, High resolution dipmeter |
| DN |
Density,Neutron |
| DNM |
Density, Neutron, Micro(Mini)Log |
| DNMTVD |
Density, Neutron, Micro(Mini)log (TVD) |
| DTVD |
Density (TVD) |
| EL |
Electric Log |
| EMT |
Electromagnetic propagation |
| EMTTVD |
Electromagnetic Propagation (TVD) |
| FIFL |
Fluid Interface Log |
| FIL |
Fracture Identification Log |
| FMS |
Formation Micro Scanner |
| FT |
Formation Test, Repeat formation tester |
| GR |
Gamma Ray, Radioactivity |
| GRTVD |
Gamma Ray (TVD) |
| I |
Induction Resistivity |
| ID |
Induction, Density |
| IDN |
Induction, Density, Neutron |
| IDNM |
Induction, Density, Neutron, Microlog/Minilog |
| IDNMTVD |
Induction, Den, Neu, Micro (Mini) log TVD |
| IDNS |
Induction, Den, Neutron, Sonic |
| IDNSM |
Induction, Density, Neutron, Sonic, Micro(Mini)og |
| IDNSMTVD |
Induction, Density, Neutron, Sonic, Micro(Mini) |
| IDNSTVD |
Induction, Den, Neutron, Sonic(TVD) |
| IDNTVD |
Induction, Density, Neutron (TVD) |
| IDS |
Induction, Density, Sonic |
| IDSTVD |
Induction, Density, Sonic (TVD) |
| IDTVD |
Induction, Density (TVD) |
| IM |
Induction, Micro(Mini)log |
| IMTVD |
Induction, Micro(Mini)log (TVD) |
| IN |
Induction, Neutron |
| INTVD |
Induction, Neutron (TVD) |
| IS |
Induction, Sonic/Acoustic |
| ISM |
Induction, Sonic, Microlog |
| ISMTVD |
Induction, Sonic, Microlog(TVD) |
| ISN |
Induction, Sonic, Neutron |
| ISNTVD |
Induction, Sonic, Neutron (TVD) |
| ISTVD |
Induction, Sonic (TVD) |
| ITVD |
Induction (TVD) |
| LL |
Laterlog |
| LLDNM |
Laterolog, Density, Neutron, Microlog |
| ML |
Microlog, Minilog |
| MLL |
Microlaterolog |
| MLTVD |
Micro (Mini) log (TVD) |
| MR |
Magnetic Resonance Log |
| MUD |
Mud Log, sample log |
| N |
Neutron |
| NL |
Not Logged |
| NTVD |
Neutron (TVD) |
| PF |
Perforating Depth Control, Perforating |
| PKR |
Packer setting record |
| PPL |
Pore Pressure Log |
| PRL |
Propagated Resistivity Log |
| PRLTVD |
Propagated Resistivity Log-True Vert Depth |
| PRX |
Pressure Express |
| RES |
Resistivity |
| RESTVD |
Resitivity (TVD) |
| ROP |
Rate of Penetration |
| ROPTVD |
Rate of penetration (TVD) |
| RST |
Reservoir Saturation Tool |
| RTS |
Radioactive Tracer Survey |
| S |
Sonic, Sonic porosity, Borehole compensated sonic |
| SFL |
Spherically Focused Log |
| SL |
Spectroscopy Log |
| SNP |
Sidewall Neutron Porosity |
| SNPTVD |
Sidewall Neutron (TVD) |
| SPS |
Spinner survey |
| STVD |
Sonic (TVD) |
| SWC |
Sidewall Core Report |
| T |
Temperature, Differential temperature |
| TDT |
Thermal Neutron Decay Time |
| TR |
Tracer, Isotope tracer |
| USGD |
Ultra Sonic Gas Detector |
| VSP |
Vertical seismic profile |
NOTE: Well log codes are listed in order of the Codes. Use Ctrl+F to easily find a listing.