NDLI: Investigation of a new HDR system with horizontal wells and multiple fractures using the coupled wellbore

Content Provider	Springer Nature Link
Author	Li, Mengting Gou, Yang Hou, Zhengmeng Were, Patrick
Copyright Year	2015
Abstract	Geothermal energy is renewable, sustainable and available in large amounts. The hot dry rock (HDR) systems, in particular, have the largest potential for long-term sustainability and therefore draw a lot of attention. The combination of horizontal wells and the technology of multiple transverse fractures technology is an attractive approach of such HDRs, which is called in this paper as the specific EGS (enhanced geothermal system). The main objective of this paper is to study the heat extraction over a period of 20 years by water circulating in a deep geothermal reservoir using this specific EGS. The wellbore flow module, T2WELL/ECO2N, is implemented in the parallelized simulator TOUGH2MP as a new code TOUGH2MP-WELL/EOS3, which enables coupled wellbore–reservoir simulations. Using this newly developed code, the sensitivity of heat extraction against various parameters of the formation and fractures is assessed. The influences of the fracture geometry and the space of two neighborhood fractures on the geothermal energy performance are analyzed. According to the results in this paper, the injection rate, the wellbore radius and the fracture permeability are three main influence factors for the distribution of total flow through individual fractures. A large injection rate, a small wellbore radius and a large fracture width will cause the short-circuit effect, which reduces the performance of this specific EGS. Compared with the classic HDR system (doublet or triplet vertical wells + single fracture), this specific EGS has a much higher performance and a longer duration of the economic production. Furthermore, the horizontal wells can also be drilled in both directions of the minimum horizontal stress instead of in just one direction, so that the energy performance is doubled and the investment cost per kW energy production is decreased and the advantage of this specific EGS is significantly enlarged.
Starting Page	6047
Ending Page	6058
Page Count	12
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	73
Issue Number	10
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-03-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Thermal hydraulic modeling Coupled wellbore–reservoir simulation Hot dry rock Horizontal well Multiple fractures Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Hot dry rock geothermal potential of the Xujiaweizi area in Songliao Basin, northeastern China

A quadruple-porosity model for transient production analysis of multiple-fractured horizontal wells in shale gas reservoirs

Wellbore cement degradation in contact zone with formation rock

Numerical model and investigation of simultaneous multiple-fracture propagation within a stage in horizontal well

Occurrence types and genesis models of hot dry rock resources in China

Numerical study on hydraulic fracturing in different types of georeservoirs with consideration of H$^{2}$M-coupled leak-off effects

Transient pressure response of fractured horizontal wells in tight gas reservoirs with arbitrary shapes by the boundary element method

Production rate analysis of multiple-fractured horizontal wells in shale gas reservoirs by a trilinear flow model

Local heat transfer characteristics of water flowing through a single fracture within a cylindrical granite specimen

Investigation of a new HDR system with horizontal wells and multiple fractures using the coupled wellbore–reservoir simulator TOUGH2MP-WELL/EOS3

Similar Documents

Hot dry rock geothermal potential of the Xujiaweizi area in Songliao Basin, northeastern China

A quadruple-porosity model for transient production analysis of multiple-fractured horizontal wells in shale gas reservoirs

Wellbore cement degradation in contact zone with formation rock

Numerical model and investigation of simultaneous multiple-fracture propagation within a stage in horizontal well

Occurrence types and genesis models of hot dry rock resources in China

Numerical study on hydraulic fracturing in different types of georeservoirs with consideration of H$^{2}$M-coupled leak-off effects

Transient pressure response of fractured horizontal wells in tight gas reservoirs with arbitrary shapes by the boundary element method

Production rate analysis of multiple-fractured horizontal wells in shale gas reservoirs by a trilinear flow model

Local heat transfer characteristics of water flowing through a single fracture within a cylindrical granite specimen

Investigation of a new HDR system with horizontal wells and multiple fractures using the coupled wellbore–reservoir simulator TOUGH2MP-WELL/EOS3