Question

3. Examine the suite of resistivity and IP logs for the wells at this site (Figures 2 b and 2 c ). Note, the $ \log $ scale for resistivity is from $ 10^{0} $ (1) to $ 10^{3.5} \mathrm{ohm}-\mathrm{m} $, and the arithmetic scale for IP is from 8 to $ 120 \mathrm{mV} / \mathrm{V} $. a) Mark X's next to each significant fracture on each of Resistivity and IP logs. b) Are the fractures / fracture zone depths continuous across the site? c) Do you think fracture density (the number of fractures per unit length of borehole) is uniform across the site? Is likely that the fracture density is related to the well yield? Why? d) Group the wells according to their fracture \& possible yield relation - i.e. which ones might produce more water, and which less?

          3. Examine the suite of resistivity and IP logs for the wells at this site (Figures 2 b and 2 c ). Note, the \( \log \) scale for resistivity is from \( 10^{0} \) (1) to \( 10^{3.5} \mathrm{ohm}-\mathrm{m} \), and the arithmetic scale for IP is from 8 to \( 120 \mathrm{mV} / \mathrm{V} \).
a) Mark X's next to each significant fracture on each of Resistivity and IP logs.
b) Are the fractures / fracture zone depths continuous across the site?
c) Do you think fracture density (the number of fractures per unit length of borehole) is uniform across the site? Is likely that the fracture density is related to the well yield? Why?
d) Group the wells according to their fracture \& possible yield relation - i.e. which ones might produce more water, and which less?

$3. Examine the suite of resistivity and IP logs for the wells at this site (Figures 2 b and 2 c ). Note, the log scale for resistivity is from 10^0 (1) to 10^3.5ohm-m, and the arithmetic scale for IP is from 8 to 120 mV / V. a) Mark X's next to each significant fracture on each of Resistivity and IP logs. b) Are the fractures / fracture zone depths continuous across the site? c) Do you think fracture density (the number of fractures per unit length of borehole) is uniform across the site? Is likely that the fracture density is related to the well yield? Why? d) Group the wells according to their fracture & possible yield relation - i.e. which ones might produce more water, and which less?$

Added by Ann E.

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