What are the three main physical properties of rocks logged by wirelines?

The three main physical properties of rocks logged by wirelines include electrical, nuclear, and acoustic measurements.

Electrical properties pertain to how rocks respond to electrical currents, which can provide insights into their porosity and fluid content. This is particularly useful for distinguishing between different types of rocks and identifying hydrocarbon zones.

Nuclear logging involves measuring the natural radioactive elements within the rock or using a gamma-ray source to introduce radiation. This helps determine the mineral composition of the rock and can be valuable in assessing its porosity.

Acoustic measurements, particularly those involving sonic logging, assess the speed at which sound waves travel through the rock. This property is key in evaluating rock elasticity and porosity, as sound velocity varies with changes in these characteristics.

Together, these properties provide comprehensive data that geologists and engineers use to make informed decisions about subsurface conditions and resource extraction processes.