Bore Path Services provides highly accurate wellbore survey data using the latest north-seeking gyro technology.

Memory Method & Real-Time Method

When performing a borehole survey using a north-seeking gyro, we are able to collect data using either the memory method or real-time method via wireline.

With the memory method multi-shot survey, the gyro tool system records data on an internal memory chip while the system is hoisted in and out of the wellbore. Once the gyro tool returns to the surface, the data is downloaded the for processing within the software.

With the real-time method of surveying, also called Surface Read-Out (SRO) or Surface Recording Gyro (SRG) method, the gyro tool system is used in conjunction with an electric wireline telemetry system to collect data from the gyro tool in real-time on a surface computer. Thus the data is received in processed while the gyro tool is downhole.

Drop Method Gyro Surveys

Another method used for wellbore surveying is the drop method gyro survey, which saves you time and money on your project.

Instead of using a wireline or slickline to hoist the gyro tool system in and out of the wellbore, the gyro system is dropped inside a fluid-filled drill string, landing above the drill bit downhole. The survey is then conducted as the drilling crew pulls the drill pipe from the hole during a pre-planned trip. This method saves the customer time and money by allowing the normal operations to continue on the drilling rig while the gyro tool system performs the survey.

This survey method is performed using the memory method, and it implements the latest technology available in solid state north-seeking gyro. The design is extremely rugged and acquires highly accurate data.

Whipstock Or Directional Motor Orientations

Bore Path also provides orientation surveys using our north seeking gyro tool system. To do this, the gyro tool system is hoisted into the drill string, landing in a UBHO or Mule-shoe sub that’s aligned with the tool-face (or business side) of a whipstock or directional motor.

We are then able to use the gyro tool system to collect directional data and survey data to place the whipstock or motor at the desired direction or heading.

This type of survey can be performed in memory mode (also referred to as single-shot mode) or in real-time mode with electric wireline telemetry and conveyance.

High-Temperature Surveys

Bore Path Services is also able to perform directional surveys in high-temperature environments. In extreme conditions, a custom thermal pressure housing is used to protect the equipment, which can withstand temperatures up to 400 degrees Fahrenheit in a wellbore.

High-Angle Or Horizontal Surveys

Bore Path Services uses the latest in north-seeking gyro technology to perform surveys that the competition sometimes just can’t. With our gyro survey systems, Bore Path is able to perform surveys from vertical to horizontal wellbore positions with few limitations.

Tool-Specific Error Model

TBore Path Services provides tool-specific error models in an .IPM file that can be imported to your drilling and wellbore planning software.

These error models were designed to the standards set by the Industry Steering Committee for Wellbore Survey Accuracy (ISCWSA), and can be used in wellbore anti-collision and placement efforts. Because our error models are ISCWSA-conforming, you can trust these files to help you plan your wellbore placements accurately.

The error models were designed and specifically based on the performance of the Gyro Path® NSG tool system.


For more information about our north-seeking gyro systems and the survey services we provide for the oil and gas industry, contact us, read about the equipment we use for oil and gas surveys, and check out our pricing philosophy.