CHEVRON GULF OF MEXICO GAS HYDRATE
JIP 1 DRILLING PROGRAM
ACRONYMS USED FOR SCHLUMBERGER (SLB) LWD-MWD TOOLS
ADN | Azimuthal Density-Neutron |
ARC | Array Resistivity Compensated |
ECO | Ecoscope |
MWD | Measurement-While-Drilling |
NMR | Nuclear Magnetic Resonance |
GVR | Resistivity-at-the-Bit |
ACRONYMS AND UNITS USED FOR LWD-MWD SLB LOGS
RESISTIVITY
Phase Shift Resistivity - ARC (0.1524 m Sampling rate) | |
P16B | Phase Shift Resistivity Blended, 16 in. (Ω.m) |
P22B | Phase Shift Resistivity Blended, 22 in. (Ω.m) |
P28B | Phase Shift Resistivity Blended, 28 in. (Ω.m) |
P34B | Phase Shift Resistivity Blended, 34 in. (Ω.m) |
P40B | Phase Shift Resistivity Blended, 40 in. (Ω.m) |
P16H | Phase Shift Resistivity, 2 MHz, 16 in (Ω.m) |
P22H | Phase Shift Resistivity, 2 MHz, 22 in (Ω.m) |
P28H | Phase Shift Resistivity, 2 MHz, 28 in (Ω.m) |
P34H | Phase Shift Resistivity, 2 MHz, 34 in (Ω.m) |
P40H | Phase Shift Resistivity, 2 MHz, 40 in (Ω.m) |
P16L | Phase Shift Resistivity, 400 KHz, 16 in (Ω.m) |
P22L | Phase Shift Resistivity, 400 KHz, 22 in (Ω.m) |
P28L | Phase Shift Resistivity, 400 KHz, 28 in (Ω.m) |
P34L | Phase Shift Resistivity, 400 KHz, 34 in (Ω.m) |
P40L | Phase Shift Resistivity, 400 KHz, 40 in (Ω.m) |
Attenuation Resistivity - ARC (0.1524 m Sampling Rate) | |
A16B | Attenuation Resistivity Blended, 16 in. (Ω.m) |
A22B | Attenuation Resistivity Blended, 22 in. (Ω.m) |
A28B | Attenuation Resistivity Blended, 28 in. (Ω.m) |
A34B | Attenuation Resistivity Blended, 34 in. (Ω.m) |
A40B | Attenuation Resistivity Blended, 40 in. (Ω.m) |
A16H | Attenuation Resistivity, 2 MHz, 16 in. (Ω.m) |
A22H | Attenuation Resistivity, 2 MHz, 22 in. (Ω.m) |
A28H | Attenuation Resistivity, 2 MHz, 28 in. (Ω.m) |
A34H | Attenuation Resistivity, 2 MHz, 34 in. (Ω.m) |
A40H | Attenuation Resistivity, 2 MHz, 40 in. (Ω.m) |
A16L | Attenuation Resistivity, 400 KHz, 16 in. (Ω.m) |
A22L | Attenuation Resistivity, 400 KHz, 22 in. (Ω.m) |
A28L | Attenuation Resistivity, 400 KHz, 28 in. (Ω.m) |
A34L | Attenuation Resistivity, 400 KHz, 34 in. (Ω.m) |
A40L | Attenuation Resistivity, 400 KHz, 40 in. (Ω.m) |
GVR (0.03048 m Sampling Rate) | |
BDAV | Deep Resistivity Average (Ω.m) |
BMAV | Medium Resistivity Average (Ω.m) |
BSAV | Shallow Resistivity Average (Ω.m) |
RBIT | Bit Resistivity (Ω.m) |
RING | Ring Resistivity (Ω.m) |
POROSITY
ADN (0.1524 m Sampling Rate) | |
TNPH | Thermal Neutron Porosity (%) |
| |
ECOSCOPE (0.1524 m Sampling Rate) | |
TNPH | Thermal Neutron Porosity (%) |
BPHI | Best Thermal Neutron Porosity, Average (%) |
|
DENSITY
ADN and ECOSCOPE (0.1524 m Sampling Rate) | |
DRHO | Density Correction (g/cm3) |
DRRT | Correction for rotational density (g/cm3) |
IDDR | Image Derived Density Correction g/cm3) |
IDPE | Image Derived Photoelectric Effect (barns/e-) |
IDRO | Image Derived Bulk Density (g/cm3) |
PEF | Photoelectric Effect (barns/e-) |
RHOB | Bulk Density (g/cm3) |
GAMMA RAY (including Spectral Gamma Ray)
GVR (0.1524 m Sampling Rate) | |
GR | RAB Gamma Ray (gAPI units) |
CALIPER
ADN and ECOSCOPE (0.1524 m Sampling Rate) | |
DCAL | Differential Caliper (in) |
DCAV | Differential Caliper Average (in) |
NUCLEAR MAGNETIC RESONANCE
NMR (0.1524 m Sampling Rate) | |
BFV_T2 | Bound Fluid Volume (%) |
FFV_T2 | Free Fluid Volume (%) |
MRP_T2 | Magnetic Resonance Porosity (%) |
T2 | T2 Distribution (%) |
T2LM_T2 | T2 Logarithmic Mean (ms) |
MISCELLANEOUS
ADN (0.1524 m Sampling Rate) | |
DTAB | ADN Density Time after Bit (s) |
NTAB | ADN Neutron Time after Bit (s) |
ROP5_RM | Rate of Penetration, average over last 5 ft (m/hr) |
RPM | Tool Rotational Speed (rpm) |
ECOSCOPE (0.1524 m Sampling Rate) | |
AGTM | ARC Gamma Ray Time After Bit (s) |
ARTM | ARC Resistivity Time After Bit (s) |
ROP5_RM | Rate of Penetration, average over last 5 ft (m/hr) |
RPM | Tool Rotational Speed (rpm) |
TAB_DEN | Density Time after Bit (s) |
TAB_NEU | Neutron Time after Bit (s) |
GVR (0.1524 m Sampling Rate) | |
B1TM | RAB Shallow Resistivity Time after Bit (s) |
B2TM | RAB Medium Resistivity Time after Bit (s) |
B3TM | RAB Deep Resistivity Time after Bit (s) |
GRTK | RAB Gamma Ray Time after Bit (s) |
RBTM | RAB Bit Resistivity Time After Bit (s) |
ROP5_RM | Rate of Penetration, average over last 5 ft (m/hr) |
RPM | Tool Rotational Speed (rpm) |
RTIM | RAB Ring Resistivity Time after Bit (s) |
Temperature and Pressure (0.1524 m Sampling Rate) | |
DHAP | Downhole Annulus Pressure (psi) |
DHAT | Downhole Annulus Temperature (°C) |
ACRONYMS USED FOR SLB WIRELINE TOOLS
DSI | Dipole sonic Imager |
GPIT | General Purpose Inclinometer Tool |
SGT | Scintillation Gamma Tool |
VSI | Vertical Seismic Imager |
ACRONYMS AND UNITS USED FOR SLB WIRELINE LOGS
DSI (0.1524 m Sampling Rate) | |
DT1 | Delta-Time Shear, Lower Dipole (μs/ft) |
DT2 | Delta-Time Shear, Upper Dipole (μs/ft) |
DTCO | Delta-Time Compressional (μs/ft) |
VS1 | Shear Velocity, Lower Dipole (from DT1, km/s) |
VS2 | Shear Velocity, Upper Dipole (from DT2, km/s) |
VCO | Compressional Velocity (from DTCO, km/s) |
GPIT (0.1524 m Sampling Rate) | |
AX | Acceleration on X Axis (m/s2) |
AY | Acceleration on Y Axis (m/s2) |
AZ | Acceleration on Z Axis (m/s2) |
FINC | Inclination (°) |
FNOR | Total Moment (oer) |
FX | Magnetic Field On X Axis (oer) |
FY | Magnetic Field On Y Axis (oer) |
FZ | Magnetic Field On Z Axis (oer) |
HAZI | Hole Azimuth (°) |
P1AZ | Pad One Azimuth (°) |
RB | Relative Bearing (°) |
SGT (0.1524 and 0.03048 m Sampling Rate) | |
ECGR | Environmentally Corrected Gamma Ray (gAPI) |
EHGR | High Resolution Environmentally Corrected Gamma Ray (gAPI) |
Miscellaneous (0.1524 m Sampling Rate) | |
CS | Cable Speed (m/hr) |
DF | Drilling Force (lb) |
ETIM | Elapsed Time (s) |
TENS | Cable Tension (lb) |
Any missing SLB acronyms could be found at SLB's Curve Mnemonic Dictionary |