Page 162 - Standard Handbook Petroleum Natural Gas Engineering VOLUME2

Formation Evaluation 131

Table 5-25
Service Company Nomenclature
~~ ~~ ~~ ~ ~
Schlumberger Gearhart Dresser Atlas Welex
Electrical log (ES) Electric log Electrolog Electric log
Induction electric Induction electrical Induction electrolog Induction electric
log log log
Induction spheri-
cally focused log
Dual induction Dual induction- Dual induction Dual induction log
spherically laterolog focused log
focused log
Laterolog-3 Laterolog-3 Focused log Guard log
Dual laterolog Dual laterolog Dual laterolog Dual guard log
Microlog Micro-electrical log Minilog Contact log
Microlaterolog Microlaterolog Microlaterolog F,R,log
Proximity log Proximity log
Microspherically
focused log
Borehole compen- Borehole compen- Borehole compen- Acoustic velocity
sated sonic log sated sonic sated acoustilog log
Long spaced sonic Long spacing BHC
log acoustilog
Cement bond Sonic cement bond Acoustic cement Microseismogram
variable density system bond log
log
Gamma ray Gamma ray Gamma ray Gamma ray
neutron neutron neutron neutron
Sidewall neutron Sidewall neutron Sidewall epithermal Sidewall neutron
porosity log porosity log neutron log log
Compensated Compensated Compensated Dual spaced
neutron log neutron log neutron log neutron
Thermal neutron Neutron lifetime log Thermal multigate
decay time log decay
Dual spacing TDT Dual detector
neutron
Formation density Compensated Compensated Density log
log density log densilog
Litho-density log
High resolution Four-electrode Diplog Diplog
dipmeter dipmeter
Formation interval Formation tester Formation tester
tester
Repeat formation Selective formation Formation multi Multiset tester
tester tester tester
Sidewall sampler Sidewall core gun Corgun Sidewall coring
Electromagnetic
propagation log
Borehole geometry X-Y caliper Caliper log Caliper
tool Compensated
Ultra long spacing
electric log