Acoustic Televiewers Downhole
Logging Survey & Services

Downhole Survey Services

Acoustic Televiewer Logging (ATV) is a type of downhole survey that uses both acoustic waves and imaging to measure the properties of the wellbore. It combines the capabilities of Full Waveform Sonic Logging (FWS) and Optical Televiewer Logging (OTV) to provide detailed information about the wellbore and the surrounding rock formation.

What Does An Acoustic Televiewer Logging Measure?

Acoustic Televiewer Logging (ATV) Survey measures both the elastic properties of the
rock formation and the features of the wellbore walls. It measures:

Density

can measure the density of the rock formation, which is important for determining the type of rock and the presence of fluids.

Compressional Wave Velocity

ATV can measure the speed at which compressional waves travel through the rock formation. This information can be used to determine the elastic properties of the rock, such as Young's modulus and Poisson's ratio.

Shear Wave Velocity

ATV can also measure the speed at which shear waves travel through the rock formation. This information is used to determine the rock's mechanical properties such as rigidity, strength, and failure criteria.

Rock Formation

ATV can be used to identify the type of rock formation, which is important for reservoir characterization and exploration.

Fractures

ATV can detect natural fractures in the rock formations that can affect the flow of fluids and production of oil and gas.

Vugs

ATV can detect the presence of vugs, which are large voids in the rock formation that can affect the well integrity and the production of oil and gas.

Cement And Drilling Mud Returns

ATV can detect the presence of drilling mud or cement returns, which can indicate a problem with the well integrity.

Corrosion And Erosion

ATV can detect signs of corrosion and erosion on the wellbore walls, which can indicate

What Is Acoustic Televiewer Logging Used For?

Acoustic Televiewer Logging (ATV) Downhole Survey is used for a variety of purposes in the oil and gas industry, mining and geothermal drilling.
Some of the main uses include:

Reservoir Characterization

ATVs can be used to identify the presence, orientation and properties of hydrocarbon-bearing formations, which can help in the exploration and production of oil and gas. It can also be used to identify the type of rock formation, porosity, permeability, saturation, stress and strain, and natural fractures.

Completion Design

ATV is used to design the completion string and select the appropriate size of the casing and tubing, in order to ensure a proper fit and avoid wellbore collapse or other issues.

Well Integrity Check

ATV can be used to evaluate the condition of the well and detect any signs of damage or deformation, which can cause well integrity issues. It can also measure the stress and strain on the rock formation which is important for well integrity check and drilling optimization.

Fracture Detection

ATV can detect natural fractures in the rock formations that can affect the flow of fluids and production of oil and gas.

Production Optimization

ATV can be used to measure the porosity, permeability, saturation and fluid identification which are important for the production of oil and gas.

Drilling Optimization

ATV can be used to optimize drilling parameters such as weight on bit, rotary speed, mud flow and mud properties, to improve the drilling efficiency and reduce the risk of wellbore instability.

Mining And Geothermal Drilling

ATV can be used in mining drilling to identify the presence of mineral deposits and in geothermal drilling to identify the presence of hot water or steam.

Reservoir Monitoring

ATV can be used to monitor the changes of rock and fluid properties with time, to track the production of oil and gas and to identify the presence of changes in the reservoir that may affect the production.