PART 5

Question 1

A multiphase-flow regime, with gas as the continuous phase, in which oil or water exists as very small, approximately homogeneously distributed droplets

Answer 1

mist flow

Question 2

A device for measuring the diameter of the internal wall of a casing or tubing using multiple arms

Answer 2

multifinger caliper

Question 3

A technique for interpreting the results from a spinner flowmeter using several logging runs of the flowmeter over the zone of interest at different speeds, both up and down

Answer 3

multipass method

Question 4

Referring to a fluid with several different immiscible fluids (oil, water or gas)

Answer 4

multiphase

Question 5

A record of the fractions, or holdups, of gas, oil and water present at different depths in a producing well using a combination of nuclear measurements recorded by a pulsed-neutron spectroscopy device

Answer 5

multiphase holdup log / pulsed neutron holdup log

Question 6

A record of the quantity of different radioactive isotopes near the borehole

Answer 6

multiple isotope log

Question 7

The technique used to produce a multiple-isotope log

Answer 7

multiple isotope spectroscopy

Question 8

A record of elemental concentrations derived from the characteristic energy levels of gamma rays emitted by a nucleus that has been activated by neutron bombardment

Answer 8

neutron activation log

Question 9

A record of the sound measured at different positions in the borehole

Answer 9

noise log

Question 10

A measure of the amount of light reflected by a fluid from an optical probe

Answer 10

optical index

Question 11

A phenomenon exploited for the purpose of detecting and quantifying the flow of water in or around a borehole based on oxygen activation

Answer 11

oxygen activation

Question 12

A device for measuring in situ the velocity of fluid flow in a production or injection well in which a packer is inflated between the tool housing and the casing wall

Answer 12

packer flowmeter

Question 13

A record of the velocity with which a particular phase (gas, oil or water) moves in a producing well

Answer 13

phase velocity log

Question 14

A record of the density in and around a completed well using a radioactive source of gamma rays and a detector

Answer 14

photon log / gravel-pack log

Question 15

To stay on the surface of the formation or a perforation tunnel

Answer 15

plate out