10 Facts About Well logging

Well logging, known as borehole logging is the practice of making a detailed record of the geologic formations penetrated by a borehole.

Well logging is performed in boreholes drilled for the oil and gas, groundwater, mineral and geothermal exploration, as well as part of environmental and geotechnical studies.

Oil and gas industry uses wireline Well logging to obtain a continuous record of a formation's rock properties.

Wireline logging is performed by lowering a 'logging tool' - or a string of one or more instruments - on the end of a wireline into an oil well and recording petrophysical properties using a variety of sensors.

Nuclear Well logging was initially developed to measure the natural gamma radiation emitted by underground formations.

Related searches

Nuclear magnetic resonance Well logging uses the NMR response of a formation to directly determine its porosity and permeability, providing a continuous record along the length of the borehole.

Spectral noise logging is an acoustic noise measuring technique used in oil and gas wells for well integrity analysis, identification of production and injection intervals and hydrodynamic characterisation of the reservoir.

Noise Well logging tools have been used in the petroleum industry for several decades.

Over many years, downhole noise logging tools proved effective in inflow and injectivity profiling of operating wells, leak detection, location of cross-flows behind casing, and even in determining reservoir fluid compositions.

Robinson described how noise Well logging can be used to determine effective reservoir thickness.