Modeling of heat extraction from variably fractured porous media in Enhanced Geothermal Systems

被引：56

作者：

Hadgu, Teklu ^{[1
]}

Kalinina, Elena ^{[1
]}

Lowry, Thomas S. ^{[1
]}

机构：

[1] Sandia Natl Labs, MS 0747,POB 5800, Albuquerque, NM 87185 USA

来源：

GEOTHERMICS | 2016年 / 61卷

关键词：

Reservoir modeling; Enhanced Geothermal Systems; Heat extraction; Fractured orientation; Well orientation; Stochastic methods; INTEGRAL-EQUATION SOLUTION; HOT DRY ROCK;

D O I：

10.1016/j.geothermics.2016.01.009

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Modeling of heat extraction in Enhanced Geothermal Systems is presented. The study builds on recent studies on the use of directional wells to improve heat transfer between doublet injection and production wells. The current study focuses on the influence of fracture orientation on production temperature in deep low permeability geothermal systems, and the effects of directional drilling and separation distance between boreholes on heat extraction. The modeling results indicate that fracture orientation with respect to the well-pair plane has significant influence on reservoir thermal drawdown. The vertical well doublet is impacted significantly more than the horizontal well doublet. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：75 / 85

页数：11

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