![]() ![]() ![]() Imperfect wellbore-to-fracture connection This paper will investigate the evidence suggesting that fractures are often subject to: However, we must recognize that all of these assumptions are imperfect. Modest/no barriers to vertical flow in formation (simplified description of layering compared to reality) To forecast production from these fractures, we frequently make the additional assumptions: Predictable fracture width providing dependable hydraulic continuity (lateral and vertical continuity) ![]() Generally, we make some or all of the following assumptions:Ĭompletely vertical fractures with perfect connection to the wellboreįlow capacity that is reasonably described by published conductivity data Although computing tools have improved, as an industry we remain incapable of fully describing the complexity of the fracture, reservoir, and fluid flow regimes. Fifty years ago, our industry was mathematically obliged to describe fractures as simple, planar structures when attempting to predict fracture geometry and optimize treatments. In the design of hydraulic fractures, it is necessary to make simplifying assumptions. ![]()
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