What is PEX log?

Platform Express integrated wireline logging tool is half the length of conventional triple-combo logging but twice as fast. The combination of higher logging speeds, reduced set-up and calibration time, and faster turnaround for wellsite processing boosts logging efficiency and requires significantly less rig time.

What is triple combo log?

The triple combo is the standard set of measurements used in formation evaluation and wireline logging: gamma-ray, porosity, and resistivity. Simply put, the triple combo tells us about rocks, pores, and fluids.

What are the types of logging?

Types of logging

  • Circular logging. Use circular logging if all you want is restart recovery, using the log to roll back transactions that were in progress when the system stopped.
  • Linear logging.
  • Active log.
  • Inactive log.
  • Secondary log files.

How many types of well logging are there?

There are two main types of coring: ‘full coring’, in which a sample of rock is obtained using a specialised drill-bit as the borehole is first penetrating the formation and ‘sidewall coring’, in which multiple samples are obtained from the side of the borehole after it has penetrated through a formation.

What does density log measure?

The density log measures electron density by detecting gamma rays that undergo Compton scattering. The intensity of scattered gamma rays is proportional to electron density. Electron density is the number of electrons in a volume of the formation. Electron density is proportional to bulk density.

What is quad combo log?

The quad-combo, which includes resistivity, bulk density/neutron porosity, sonic, and gamma ray measurements, provided the operator with information to evaluate the reservoir’s potential and lithology.

Which logging method is best?

I think selective logging is the best for sustainability because it has minimal impact on the forest. It takes into account the younger trees and all the trees are selected carefully. describe the advantages and disadvantages of each type of logging method.