Oriented Coring

 

The Foothills Resource Services oriented coring package is a comprehensive suite of tools to bring accurate data to the operator.

Each suite includes:

• Long life lithium batteries

• Electronic Multi Shot

• Surface Readout Gyroscope

• Non-Magnetic Drill Collar

• Alignment Sub

• Soft Landing Sub (where required)

• 3 Knife Scribe Shoe

• Slip and Dog Catcher Shoe

• Mule Shoe

• Flow Ports

• Reporting Kit

 

THE SURFACE READOUT GYROSCOPE

 

Most suited for noisy environments. These tools are high accuracy ‘free gyroscopes’ that don’t succumb to vibrations. Ideally suited for staying seated behind drilling motors, or in offshore applications where heave and wellbore vibrations would effect a north-seeking gyroscope. Also high accuracy surveying tools in wellbores typically less than 30° of inclination.

 

ADVANTAGES

 

• Faster cluster shots

• Ideal for noisy environments

• Much faster operationally than a North Seeking Gyro. (Does not require time to put tool in steering mode)

 

 

Several tool configurations are available in order to provide varying requirements for surveying. The different versions use the same basic data probe, surface gear, and accelerometers. The differences are related to pressure requirements, hole restrictions on outside diameters, temperature, and hole inclination.

 

 

The FRS oriented coring system utilizes the non magnetic gyro device aligned with the main knife blade calibrated North. The multishot tool is hidden within the magnetic collar and isolated from vibration and rotation by the bearing assembly in the safety joint of the FRS core barrel. The scribe shoe features 3 knifes at uneven angles for identification in a variety of lithologies.