Fracture Characterization in Enhanced Geothermal Systems by Wellbore and Reservoir Analysis

Horne, Roland N.; Li, Kewen; Alaskar, Mohammed; Ames, Morgan; Co, Carla; Júlíusson, Egill; Magnusdottir, Lilja

doi:10.2172/1050872

Cited by 1 publication

(1 citation statement)

References 94 publications

(185 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[31] The full structure of the Hessian, i.e., with the second-derivative terms included, is given in Horne et al [2010]. However, the second-derivative terms are often left out (Gauss-Newton method), and that proved computationally efficient in this case.…”

Section: Parametric Deconvolutionmentioning

confidence: 99%

Characterization of fractured reservoirs using tracer and flow‐rate data

Júlíusson

Horne

2013

Water Resources Research

Self Cite

View full text Add to dashboard Cite

[1] This article introduces a robust method for characterizing fractured reservoirs using tracer and flow-rate data. The flow-rate data are used to infer the interwell connectivity matrix, which describes how injected fluids are divided between producers in the reservoir. The tracer data are used to find a function called the tracer kernel for each injector-producer connection. The tracer kernel describes the volume and dispersive properties of the interwell flow path. A combination of parametric and nonparametric regression methods was developed to estimate the tracer kernels in situations where data are collected at variable flow rate or variable-injected concentration conditions. This characterization method was developed to describe enhanced geothermal systems, although it works well in general for characterizing incompressible flow in fractured reservoirs (e.g., geothermal, carbon sequestration, radioactive waste and waterfloods of oil fields) where transverse dispersivity can be considered negligible and production takes place at constant bottomhole pressure conditions. The inferred metrics can be used to sketch informative field maps and predict tracer breakthrough curves at variable flow-rate conditions. Citation: Juliusson, E., and R. N. Horne (2013), Characterization of fractured reservoirs using tracer and flow-rate data, Water Resour.

show abstract

Section: Parametric Deconvolutionmentioning

confidence: 99%