In the petroleum industry, well logging is the process of making a detailed record (a well log) of the geologic formations penetrated by a borehole. The log may be either a physical record or an electronic record.
Well logging is performed during drilling, completion, and production operations and involves acquiring information about the subsurface lithology and fluid content of petroleum reservoirs. The types of logs run depend on the objectives of the operation.
There are many different types of logs, but some of the more common ones are:
-Gamma ray logs: used to measure the natural radioactivity of the formations
-Resistivity logs: used to determine the resistivity of the formations and fluids
-Porosity logs: used to calculate the porosity of the formations
-Drilling fluid density logs: used to determine the density of the drilling fluid
In order to create a well log, a logging company will send a logging unit down the borehole on a wireline. The logging unit contains sensors that measure different properties of the formations and fluids. The data from the sensors is then transmitted to the surface, where it is recorded.
Well logging is an important tool for petroleum engineers and geologists, as it can provide information about the subsurface that would otherwise be impossible to obtain. It can be used to determine the location of oil and gas reservoirs, as well as the best way to develop them.
Well logging is a critical part of the petroleum industry and has been used since the early days of oil exploration. In the early 1900s, wells were typically only a few hundred feet deep and the only way to obtain information about the subsurface was to bring samples of the formations to the surface. This was a time-consuming and expensive process.
The first well logs were created in the 1920s, using a technology called electrical resistivity logging. This type of logging measured the resistivity of the formations and fluids. The data from the resistivity logs was used to create a map of the subsurface, which was then used to locate oil and gas reservoirs.
As drilling technology improved and wells became deeper, other types of logs were developed. These included gamma ray logs, which measured the natural radioactivity of the formations, and porosity logs, which measured the porosity of the formations.
Today, well logging is an essential part of the petroleum industry. It is used to locate and develop oil and gas reservoirs, as well as to monitor production operations.We at Pinson Well Logging will help with any geological questions you may have. Check out the services we offer.