Acoustic Televiewer Deviation (mag. Decl. 0.00) Plan View - Deviation Temp, Normal Res, FR, SP, Gamma
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	Borehole Method
	FPM Geophysical and UXO Services’ geophysicists employ a wide variety of downhole techniques dependent on site specific objectives. Geophysical borehole logging involves measuring the physical properties of the surrounding medium with a sensor located in a borehole. It provides information that cannot be obtained using other techniques, and it is essential for many purposes, including correlation, plume delineation, and groundwater flow modeling. A common logging suite involves using resistivity, EM induction, and natural gamma methods to obtain a better understanding of subsurface geology. Resistivity, EM induction, and natural gamma logs provide detailed stratigraphic information. The logs are continuous and offer a cost effective way to correlate geology from borehole to borehole. The parameters measured by borehole geophysical logging depend on the instruments used and the data required. Geologic information that can be obtained from downhole surveys include: Lithology Depth of casing bottom Subsurface temperature Sediment porosity/permeability Condition of well casing/screen Formation thickness and attitude Location and orientation of fractures Presence and depth of water bearing fractures      Example of deviation logs in a bedrock well.