BMR Method

BMR (Borehole Magnetic Resonance) is a borehole measurement method that measures the water content of a rock mass, i.e. the water-filled porosity of a formation. The method is based on the magnetic resonance of water.

 


 

The BMR method has a history in the oil and gas industry, where it is used to define an observed deposit. BMR also brings the same opportunities to other industries where the water content of the rock mass is a key piece of information.

Hydrogeology: A better understanding of the physical properties of the rock is obtained by means of a borehole magnetic resonance (BMR) measurement. BMR provides a lithology-independent estimate of the porosity of the rock. The T2 distribution of the transverse relaxation time can be used to observe water bound to the crystal structure and retained in the pores and to estimate the hydraulic conductivity. BMR measurement therefore provides significant additional information to support hydrogeological modeling.

Mining industry: BMR can be used to support other measurements for density estimation, resource estimation and resource quality assessment, and as input data for geotechnical modeling.

Measurements can currently be performed down to a depth of 2000 meters. The borehole diameter can vary, with the BRM60 sensor the maximum diameter can be 186 mm and with the BRM90 sensor 312 mm.

BMR mittalaistoa
BMR-laitteistoa
BMR-mittauskalustoa

Equipment and data

We carry out the measurements in cooperation with Orica. We use WIREBmr™ sensors manufactured by Orica for the measurements. You can learn more about the method and equipment on Orica's website: https://www.orica.com/Products-Services/Digital-Solutions/wirebmr

The customer always receives quality-certified raw data from the measurements. In addition, we process, analyze and report the data in cooperation with Orica in accordance with the agreement.

The selected level of reporting and the customer's familiarization with the research results are done as agreed.