Providing a Laboratory Method to Control Sand Production by Creating Compressive Strength and Minimizing the Permeability of Sand Formation

Sand production in sandstone reservoirs is a vital issue in oil and gas fields due to the damage and economic problems it entails. Sand production leads to many problems such as erosion of facility of well and surface equipment, environmental problems, reduction and interruption in production and Sometimes it causes the loss of wells. Therefore, controlling sand production from wells prone to sand production is very important. So far, various methods, including mechanical and chemical, have been proposed and performed to control sand production, which are consolidated in chemical methods by injecting polymer fluids such as resins, etc. to the sand formation. The main purpose of this study is to provide aqueous-based resin that, in addition to creating compressive strength and slightly reducing permeability, is environmentally friendly and effective in terms of health and safety in comparison with solvent-based resins. By combining different percentages of resin and its suitable hardener with the produced sand sample, different core samples were made with different percentages. The fabricated cores were tested for permeability and compressive strength. Experiments showed that the fluid used has the ability to chemically consolidate the sand and the compressive strength and permeability values also change with the amount of resin and hardener composition.