CHEVRON GULF OF MEXICO GAS HYDRATE

JIP DRILLING PROGRAM

ACRONYMS USED FOR SCHLUMBERGER LWD-MWD TOOLS

ECO EcoScope

GVR geoVision

MP3 MP3 Sonic

PERI PeriScope

SONIC sonicVISION

ACRONYMS AND UNITS USED FOR LWD-MWD SCHLUMBERGER LOGS

RESISTIVITY

EcoScope (0.5 ft Sampling rate)

P16B Phase Shift Resistivity Blended, 16 in. (ohmm)

P22B Phase Shift Resistivity Blended, 22 in. (ohmm)

P28B Phase Shift Resistivity Blended, 28 in. (ohmm)

P34B Phase Shift Resistivity Blended, 34 in. (ohmm)

P40B Phase Shift Resistivity Blended, 40 in. (ohmm)

P16H Phase Shift Resistivity, 2 MHz, 16 in (ohmm)

P22H Phase Shift Resistivity, 2 MHz, 22 in (ohmm)

P28H Phase Shift Resistivity, 2 MHz, 28 in (ohmm)

P34H Phase Shift Resistivity, 2 MHz, 34 in (ohmm)

P40H Phase Shift Resistivity, 2 MHz, 40 in (ohmm)

P16L Phase Shift Resistivity, 400 KHz, 16 in (ohmm)

P22L Phase Shift Resistivity, 400 KHz, 22 in (ohmm)

P28L Phase Shift Resistivity, 400 KHz, 28 in (ohmm)

P34L Phase Shift Resistivity, 400 KHz, 34 in (ohmm)

P40L Phase Shift Resistivity, 400 KHz, 40 in (ohmm)

EcoScope (0.5 ft Sampling Rate)

A16B Attenuation Resistivity Blended, 16 in. (ohmm)

A22B Attenuation Resistivity Blended, 22 in. (ohmm)

A28B Attenuation Resistivity Blended, 28 in. (ohmm)

A34B Attenuation Resistivity Blended, 34 in. (ohmm)

A40B Attenuation Resistivity Blended, 40 in. (ohmm)

A16H Attenuation Resistivity, 2 MHz, 16 in. (ohmm)

A22H Attenuation Resistivity, 2 MHz, 22 in. (ohmm)

A28H Attenuation Resistivity, 2 MHz, 28 in. (ohmm)

A34H Attenuation Resistivity, 2 MHz, 34 in. (ohmm)

A40H Attenuation Resistivity, 2 MHz, 40 in. (ohmm)

A16L Attenuation Resistivity, 400 KHz, 16 in. (ohmm)

A22L Attenuation Resistivity, 400 KHz, 22 in. (ohmm)

A28L Attenuation Resistivity, 400 KHz, 28 in. (ohmm)

A34L Attenuation Resistivity, 400 KHz, 34 in. (ohmm)

A40L Attenuation Resistivity, 400 KHz, 40 in. (ohmm)

geoVision (1.2 in Sampling Rate)

BDAV Deep Resistivity Average (ohmm)

BMAV Medium Resistivity Average (ohmm)

BSAV Shallow Resistivity Average (ohmm)

RING Ring Resistivity (ohmm)

POROSITY

EcoScope (0.5 ft Sampling Rate)

BPHI Best Thermal Neutron Porosity, Average (%)

DENSITY

EcoScope (0.1524 m Sampling Rate)

IDDR Image Derived Density Correction g/cm3)

IDPE Image Derived Photoelectric Effect (barns/e^-)

IDRO Image Derived Bulk Density (g/cm3)

GAMMA RAY

geoVision (0.5 ft Sampling Rate)

GR Gamma Ray (gAPI units)

EcoScope (0.5 ft Sampling Rate)

GRMA Gamma Ray. Average (gAPI units)

CALIPER

EcoScope (0.5 ft Sampling Rate)

DCAV Differential Caliper Average (in)

VELOCITY

sonicVISION (0.5 ft Sampling Rate)

DTRP Delay Time(miscrosec/ft)

VELP Compressional Velocity (m/sec)

MISCELLANEOUS

EcoScope (0.5 ft Sampling Rate)

ROP Rate of Penetration (ft/hr)

ROP5 Rate of Penetration, average over last 5 ft (ft/hr)

RPM Tool Rotational Speed (rpm)

geoVision (0.5 ft Sampling Rate)

ROP5 Rate of Penetration, average over last 5 ft (ft/hr)

RPM Tool Rotational Speed (rpm)

RTIM Ring Resistivity Time after Bit (s)

Temperature and Pressure (0.5 ft Sampling Rate)

DHAP Downhole Annulus Pressure (psi)

DHAT Downhole Annulus Temperature (degF)