Prozessablaufe im Speicherbereich bei der Injektion von Flussigkeiten in Bohrungen -Messung und Simulation

摘要

Depth and time based temperature measurements with fibre optic cable, often referred to as Distributed Temperature Sensing DTS, were used during re-injeetion offormation water to confirm wellbore and storage reservoir integrity. Formation water, a by-produet of oil and gas produetion, Li processed at surface and re-injeeted through disposal weih into high porosity and high permeability layers in the subsurface. uerification of the sealing prop-erties of over-lying layers is ofimportance to avoid contaminating fresh water supplies. A study was carried out during re-injeetion on a formation water disposal well consist-ing of a high porosity, permeability Kalk-arenite storage reservoir overlain by impermeable Palaeocene shales.