Numerical simulations indicate that hydrocarbon migration and entrapment in stacked fault-bounded reservoirs are mainly affected by the following factors: charge time, faults, pressure and geological structures. The charge time for commercial hydrocarbon accumulation is much longer in oil-water systems than in oil-gas-water systems. Faults are classified into charging faults and 'back doors' faults other than charging faults in stacked fault-bounded reservoirs. The lower the displacement pressure of a fault, the higher its updip oil transportation ability. The downdip oil transportation ability of a fault is usually low and cannot cause commercial downdip oil accumulation. Back doors affect both hydrocarbon percent charge and hydrocarbon migration pathways. Updip back doors improve updip oil charge. The lower the displacement pressure of an updip back door, the more efficient the updip oil charge before 3,000 years. Back doors whose displacement pressure is equal to or higher than 28.76 psi are effective in sealing faults in oil-water systems. On the contrary, only sealing faults result in commercial gas accumulations in stacked fault-compartmentalized reservoirs. Otherwise gas is found over oil. Downdip back doors generally have few effects on downdip hydrocarbon charge. Geopressure enhances the updip oil transportation of a fault and improves the positive effects of updip back doors during updip oil charge. Geopressure and updip back doors result in more efficient updip oil charge. A physical barrier is not necessarily a barrier to oil migration with the aid of geopressure and updip back doors. The chance for hydrocarbon charge into reservoirs along growth faults is not equal. Any one of the above controlling factors can change the patterns of hydrocarbon charge and distribution in such complex geological structures. Generally, lower reservoirs and updip reservoirs are favored. Reservoirs along low-permeability charging faults may be bypassed. Gas can only charge the updip reservoirs. Both updip and downdip back doors can facilitate oil penetrating a barrier fault to charge reservoirs offset by the barrier fault. Interreservoir migration among stacked fault-compartmentalized reservoirs is an important mechanism for hydrocarbon accumulation and trap identification. The interreservoir migration is a very slow process, even though the displacement pressures of bounding faults may be very low.

This thesis is about renovations and municipal housing companies, and more generally, it concerns housing inequality and urban restructuring. The Swedish housing market is strongly characterized by housing inequality, and, in addition, large parts of the affordable rental stock are facing need for renovations. Renovations which risk making the rental stock less accessible and, in addition, reinforce inequality and displacement. Half of all the properties facing renovation in Sweden are owned by municipal housing companies, allmännyttan, which are obliged to provide good and accessible housing for everyone and the common benefit. However, since 2011, the municipal housing companies are at the same time to operate under preconditions that require profit. In the light of this potential conflict of interest, the overarching purpose has been to provide an empirical exploration and problematization of how renovations are managed and motivated within allmännyttan and what potential implications this has on supplying good housing for all. Through the case of the municipal housing company Bostads AB Poseidon and the district Frölunda Torg in Gothenburg, renovations have been explored within a municipal setting and larger urban restructuring process. The material that formed the empirical data was qualitative and comprised three parts: policy, communication with tenants, and interviews with employees at Bostads AB Poseidon. Central concepts in exploring the renovations have been displacement pressure, urban restructuring, and hegemonic gaze. The thesis has identified several aspects concerning renovations and the altered role of allmännyttan which raises questions whether the renovations can be understood as for the common benefit.