Numerical study of long-time growth of hydraulic fractures in a line drive

This work concerns detailed numerical modelling of injection fracturing in chalk formations under 2–3 km burial. The conditions and properties are chosen to resemble field as typically found oil fields subject water the Central Graben North Sea off-shore Denmark, Norway UK, but studied phenomena general irrespective geographical location technological application. complexity reality is a challenging factor when mathematical models hydraulic fractures subsurface formulated. To this end finite element method multi physics approach instrumental, data from developed operated prudent for equally important. In present study, poroelastic model applied used plane strain linear fracture mechanics investigation. suitable analysing arrays parallel horizontal wells can be many undergoing water-flooding. Based on realistic data, e.g. reservoir rate pressure scenarios representative typical region, initiation growth analysed details setting. Using formulation J-integral, that includes Functionally Graded Material effects, it demonstrated formation toughness determines height. propagation speed controlled by continuity, must balance leak-off wall. By combining geotechnical engineering, petroleum engineering mechanical with measurements, study provides novel how producer injector influence process induced line drive.