?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F645%2F&rft.title=Long+term+behaviour+of+geothermal+reservoirs&rft.creator=Please%2C+C.P.&rft.creator=Ockendon%2C+H.&rft.creator=Howison%2C+S.D.&rft.creator=Tighe%2C+S.&rft.subject=Materials&rft.subject=Fluids&rft.subject=Solid+mechanics&rft.description=A+number+of+different+aspects+of+geothermal+reservoir+behaviour+were+studied+during+the+week.++These+ranged+from+the+correct+formulation+of+the+thermo-elastic+deformation+equations+for+granite%2C+and+the+possible+practical+methods+of+implementing+the+thermo-elastic+effects+within+the+existing+large+computer+codes%2C+to+the+generation+of+simple+models+describing+the+long+term+thermal+effects.%0D%0A%0D%0AThis+report+describes+the+results+of+simple+modelling.+The+approach+was+to+consider+first+how+the+rock+cooled+as+a+result+of+water+moving+through+the+network+of+cracks+and+then+to+consider+second+how+this+cooling+might+change+the+rock+stresses+and+water+viscosity%2C+and+hence+the+effective+permeability+of+the+cracks%2C+thereby+altering+the+flow+pattern+from+inlet+to+outlet+bore-hole.&rft.date=1991&rft.type=Study+Group+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F645%2F1%2Fp3.pdf&rft.identifier=++Please%2C+C.P.+and+Ockendon%2C+H.+and+Howison%2C+S.D.+and+Tighe%2C+S.++(1991)+Long+term+behaviour+of+geothermal+reservoirs.++%5BStudy+Group+Report%5D+++++