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Page 36
Volume 3
Journal of Environmental Chemistry and Toxicology
oil and gas
August 05-06, 2019 | Singapore
International Conference on
Oil Gas 2019
August 05-06, 2019
J Environ Chem Toxicol, Volume 3
Aforwardmodelingmethod based on electromagnetic theory tomeasure the parameters
of hydraulic fracture
Liming Zhang
UPC, China
H
ydraulic fracturing is the pivotal technology of tight unconventional reservoir, and accurate monitoring of fracture
morphology is related to fracturing effect evaluation, well productivity prediction and the follow-up measures. Compared
with traditional methods, electromagnetic monitoring can obtain the Effective Propped Volume (EPV) that actually reflects the
productivity, solve the abuse such as low fracture identification accuracy, limited by the specific time. This paper introduces
a physical and numerical model that uses electromagnetic characteristics to accurately monitor the parameters of the fracture.
A triaxial transmitting - triaxial receiving instrument which is approximate to the construction site is set up, the relationship
of electromagnetic monitoring signals and the fracture parameters is obtained. By placing the transmission source plane
perpendicular to an appropriate coordinate axis in a three-dimensional rectangular coordinate system the length and height of
the fracture could be monitored by the signal of the long receiver while the transmitting source surface being perpendicular to
the Z-axis. The azimuth could be inverted according to the magnitude of the signal peak when the transmitting source surface is
perpendicular to the X-axis. The sign of azimuth could be determined by setting a M-axis (the Z axis rotates counterclockwise
45 degrees in the XZ plane).