One of the most common ways to produce oil from a petroleum reservoir is to displace it by the injected water. This water may contain solid particles or bacteria.
The particles deposit at the porous medium of the reservoir and cause decline of the water injectivity.
The particles that do not penetrate inside the reservoir rock may deposit on the surface of the well, producing a filter cake. This is one of the important common problems for oil production in the reservoirs of the North Sea.
The goal of the present project is to analyze the particles contained in the injected water applied to the reservoirs of the Danish sector of the North Sea. Analyzis of the particle size and pore size distributions and other parameters will hopefully help finding out how deeply the particles may penetrate into the rock and how the injectivity decline will be developed with time.
A special dynamic model that has previously been created for this purpose (Hao Yuan, in the framework of the Parpor project) will be adjusted to the specific conditions of the North Sea reservoirs.