Electromagnetic

Controlled Source Electromagnetics (CSEM) has been a commonly used tool in the exploration of offshore petroleum reserves for over 20 years.ESG has introduced a Scatter Field CSEM to onshore unconventional plays to track the changes in conductive fluid and proppant. Using surface-based electromagnetic acquisition, ESG monitors where the subsurface fluid is going during hydraulic fracturing, flowback, EOR, and CCUS operations.Our patented, proprietary transmitters emit a high current (200KW+)PRN (pseudo random numeric) code into the ground to unconventional reservoir depths. The response is then measured by surface receivers with nano-Volt (nV) sensitivity and nano-Second (nS) timing. The stimulation alters the electrical field, and that dynamic change is measured in real-time and imaged to identify fluid placement.