Oilfield

Oilfield

Oilfield refers to a region with an abundance of oil wells extracting petroleum from below the ground.

Contributors in Oilfield

Oilfield

A record of the density, or changes in density, of fluids in a production or injection well. Since gas, oil and water all have different densities, the log can determine the percentage, or holdup, of ...

radial differential-temperature log

Oil & gas; Oilfield

A record of the difference in temperature between the opposite sides of the internal wall of a casing. The log is mainly used to detect a channel in the cement, since the fluid moving in the channel ...

photon log

Oil & gas; Oilfield

A record of the density in and around a completed well using a radioactive source of gamma rays and a detector. The log is recorded with a nuclear fluid densimeter. Originally, photon logs were run ...

distributed-temperature log

Oil & gas; Oilfield

A record of the change in temperature along a well, normally recorded by a fiber-optic cable. The distributed temperature is measured by sending a pulse of laser light down the optical fiber. ...

production log

Oil & gas; Oilfield

A record of one or more in-situ measurements that describe the nature and behavior of fluids in or around the borehole during production or injection. Production logs are run for the purpose of ...

neutron-activation log

Oil & gas; Oilfield

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. In the context of production ...

born method

Oil & gas; Oilfield

A method of analyzing the response of an induction logging tool that considers the contribution of each element of the formation as a perturbation from the average background conductivity. The ...