Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Streaming potential modeling in fractured rock: Insights into the
  identification of hydraulically active fractures   Numerous field experiments suggest that the self-potential (SP) geophysical
method may allow for the detection of hydraulically active fractures and
provide information about fracture properties. However, a lack of suitable
numerical tools for modeling streaming potentials in fractured media prevents
quantitative interpretation and limits our understanding of how the SP method
can be used in this regard. To address this issue, we present a highly
efficient two-dimensional discrete-dual-porosity approach for solving the fluid
flow and associated self-potential problems in fractured rock. Our approach is
specifically designed for complex fracture networks that cannot be investigated
using standard numerical methods. We then simulate SP signals associated with
pumping conditions for a number of examples to show that (i) accounting for
matrix fluid flow is essential for accurate SP modeling and (ii) the
sensitivity of SP to hydraulically active fractures is intimately linked with
fracture-matrix fluid interactions. This implies that fractures associated with
strong SP amplitudes are likely to be hydraulically conductive, attracting
fluid flow from the surrounding matrix.

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The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
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The categories of this paper are: stat
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The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ph
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The categories of this paper are: math-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-ex