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Table T2. MWD-APWD tool acronyms, descriptions, and units. (See table notes.)

Tool Output Description Unit
MWD   Measurement while drilling  
HKLD Hookload kkgf
SWOB Surface weight on bit kkgf
DWOB Downhole weight on bit kkgf
SPPA Surface pump pressure kPa
ROP*5 5 ft averaged rate of penetration m/h
GRM1 LWD natural gamma radiation gAPI
CRPM_RT Collar rotation per minute rpm
TRPM_RT Fluid pulse turbine rotation per minute rpm
Stick_RT Stick-slip indicator rpm
APWD   Annular pressure while drilling  
PRSA Annular pressure kPa
ATMP_CDR Annular temperature °C
ECD_CDR Equivalent circulating density g/cm3
SPPA Surface pumpout pressure kPa
SHKRSH Shock risk  
STICKNSLIP Slimpulse stick-slip rpm
CRPM Slimpulse collar rotation per minute rpm
STUCK Percent time stuck
MTFS PowerPulse magnetic toolface °
MWD_GR_BHC Borehole corrected gamma ray gAPI
geoVISION real time   geoVISION resistivity tool  
GR_RAB_RT Natural gamma radiation gAPI
RES_RING_RT Ring resistivity Ωm
RES_BIT_RT Bit resistivity Ωm
RES_BS_RT Shallow-button resistivity Ωm
RES_BM_RT Medium-button resistivity Ωm
RES_BD_RT Deep-button resistivity Ωm
RB_RT Relative bearing °
HAZI_RT Hole azimuth °
DEVI_RT Hole deviation °
ECAL_RAB_RT Caliper inch
SHK_RAB_TRANS_RT Transverse shock 1/s
SHK_RAB_AX_RT Axial shock 1/s
geoVISION memory   geoVISION resistivity tool  
GR Total natural gamma radiation gAPI
RES_RING Ring resistivity Ωm
RES_BIT Bit resistivity Ωm
RES_BS Shallow-button resistivity Ωm
RES_BM Medium-button resistivity Ωm
RES_BD Deep-button resistivity Ωm
RES_BS_IMG Shallow-button resistivity image Ωm
RES_BM_IMG Medium-button resistivity image Ωm
RES_BD_IMG Deep-button resistivity image Ωm
TAB_RAB_RING Ring resistivity time after bit s
TAB_RAB_BS Shallow-button resistivity time after bit s
TAB_RAB_BM Medium-button resistivity time after bit s
TAB_RAB_BD Deep-button resistivity time after bit s
ECAL_RAB RAB caliper inch
HAZI Hole azimuth from well survey °
DEVI Hole deviation from well survey °
P1NO Pad 1 rotation relative to north azimuth °

Notes: LWD = logging while drilling. RAB = resistivity at the bit.

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