DeepLook-EM
Crosswell electromagnetic imaging
Imaging the interwell space
Crosswell electromagnetic (EM) imaging expands the scale investigated by resistivity logging to deliver the big picture—between wells up to 3,280 ft [1,000 m] apart. By monitoring fluid distribution and movement on a reservoir scale, DeepLook-EM service gives you information critical to optimizing sweep efficiency and identifying bypassed reserves.
Reservoir-scale resistivity images help you understand fluid distribution and predict movement for successful reservoir management.
How it works for deeper understanding
DeepLook-EM service directly measures reservoir resistivity between two wells up to 3,280 ft apart. The transmitter antenna in one well broadcasts a continuous sinusoidal signal at a frequency from 5 Hz to 1 kHz, selected by modeling and simulation of the borehole environment, well separation, and formation resistivity. The magnetic moment produced by the transmitter is 100,000 times stronger than the source in a conventional single-well induction logging system.
The transmitter signal traverses the formation of interest between the wells at a logging speed of 2,000 to 5,000 ft/h to the receiver station in the other well. Once a complete transmitter traverse, or profile, is collected for a receiver position, the receiver tool is repositioned, and the process is repeated.
The dataset of interwell resistivity distributions is exported to a field model compiled using the Petrel E&P software platform. The resulting data integration and interpretation provide critical crosswell insight for fluid tracking of water and steam, detecting bypassed pay, and optimizing reservoir characterization.
