Transient Pressure Analysis: Finite Conductivity Fracture Case Versus Damaged Fracture Case
1981; Linguagem: Inglês
10.2118/10179-ms
AutoresHéber Cinco-Ley, Fernando Samaniego-V.,
Tópico(s)Oil and Gas Production Techniques
ResumoABSTRACT This work presents the basic pressure behavior differences between a finite conductivity fracture and different types of damaged fractures. Two kinds of fracture damage conditions are studied: a) a damaged zone around the fracture, and b) a damaged zone within the fracture in the vicinity of the wellbore. The first case is caused by the fracturing fluid loss in the formation and the last case is originated by crushing, embedding or loss of propant within the fracture in the vicinity of the wellbore. This paper emphasizes that although finite fracture conductivity and fracture damage condition are both flow restrictions, their effects on transient pressure behavior are quite different at early time. Type curves and both linear flow and bilinear flow graphs can be used to identify different cases when applied properly.
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