Simple models of the hydrofracture process

Handle URI:
http://hdl.handle.net/10754/595156
Title:
Simple models of the hydrofracture process
Authors:
Marder, M.; Chen, Chih-Hung; Patzek, Tadeusz ( 0000-0002-9389-7579 )
Abstract:
Hydrofracturing to recover natural gas and oil relies on the creation of a fracture network with pressurized water. We analyze the creation of the network in two ways. First, we assemble a collection of analytical estimates for pressure-driven crack motion in simple geometries, including crack speed as a function of length, energy dissipated by fluid viscosity and used to break rock, and the conditions under which a second crack will initiate while a first is running. We develop a pseudo-three-dimensional numerical model that couples fluid motion with solid mechanics and can generate branching crack structures not specified in advance. One of our main conclusions is that the typical spacing between fractures must be on the order of a meter, and this conclusion arises in two separate ways. First, it arises from analysis of gas production rates, given the diffusion constants for gas in the rock. Second, it arises from the number of fractures that should be generated given the scale of the affected region and the amounts of water pumped into the rock.
KAUST Department:
Earth Science and Engineering Program; Upstream Petroleum Engineering Research Center (UPERC)
Citation:
Simple models of the hydrofracture process 2015, 92 (6) Physical Review E
Publisher:
American Physical Society (APS)
Journal:
Physical Review E
Issue Date:
29-Dec-2015
DOI:
10.1103/PhysRevE.92.062408
Type:
Article
ISSN:
1539-3755; 1550-2376
Additional Links:
http://link.aps.org/doi/10.1103/PhysRevE.92.062408
Appears in Collections:
Articles; Earth Science and Engineering Program; Upstream Petroleum Engineering Research Center (UPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorMarder, M.en
dc.contributor.authorChen, Chih-Hungen
dc.contributor.authorPatzek, Tadeuszen
dc.date.accessioned2016-01-28T12:54:38Zen
dc.date.available2016-01-28T12:54:38Zen
dc.date.issued2015-12-29en
dc.identifier.citationSimple models of the hydrofracture process 2015, 92 (6) Physical Review Een
dc.identifier.issn1539-3755en
dc.identifier.issn1550-2376en
dc.identifier.doi10.1103/PhysRevE.92.062408en
dc.identifier.urihttp://hdl.handle.net/10754/595156en
dc.description.abstractHydrofracturing to recover natural gas and oil relies on the creation of a fracture network with pressurized water. We analyze the creation of the network in two ways. First, we assemble a collection of analytical estimates for pressure-driven crack motion in simple geometries, including crack speed as a function of length, energy dissipated by fluid viscosity and used to break rock, and the conditions under which a second crack will initiate while a first is running. We develop a pseudo-three-dimensional numerical model that couples fluid motion with solid mechanics and can generate branching crack structures not specified in advance. One of our main conclusions is that the typical spacing between fractures must be on the order of a meter, and this conclusion arises in two separate ways. First, it arises from analysis of gas production rates, given the diffusion constants for gas in the rock. Second, it arises from the number of fractures that should be generated given the scale of the affected region and the amounts of water pumped into the rock.en
dc.language.isoenen
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevE.92.062408en
dc.rightsArchived with thanks to Physical Review Een
dc.titleSimple models of the hydrofracture processen
dc.typeArticleen
dc.contributor.departmentEarth Science and Engineering Programen
dc.contributor.departmentUpstream Petroleum Engineering Research Center (UPERC)en
dc.identifier.journalPhysical Review Een
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Physics, The University of Texas at Austin, Austin, Texas 78712, USAen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorPatzek, Tadeuszen
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