Analysis of Multi-Well Pressure Transient Data

Technical innovations in pressure data acquisition make it now possible to collect large sets of accurate pressure measurements simultane ously at multiple wells located in hydrocarbon reservoirs of a complex structure. Data acquired from such multi-well tests may provide ad ditional information on a reservoir (like fluid contacts, fault systems, boundaries), which could not be obtained from single-well tests. To analyse these multi-well pressure data sets, new techniques are required. A boundary element method is used to predict the pressure response of complex (sectionally homogeneous) reservoir models with multiple wells and mixed boundary conditions. Other techniques include the use of Laplace space pressures and improved nonlinear regression schemes. The feasibility of multi-well pressure analysis will be demonstrated for some realistic model problems.