During fracturing operations, the most important objective is the successful placement of proppant into fracture channels within hydrocarbon bearing formation zones. This is done with the intent of creating a high conductivity channel, allowing hydrocarbons an open path from the far reaches of the reservoir into the well bore area.

However, once proppant has been successfully placed into the formation, it is critical that the proppant remain in place to maintain this high conductivity channel. Achieving this can be complicated by substantial pressure differences between the extremities of the fracture channel and the near wellbore area, with a tendency of flow towards the lower pressure area around the wellbore. The most common means of remedying this problem currently is treating proppants with a resin coating. This coating softens under pressure and temperature, and provides a strong amount of cohesive force to the proppant. However, there are several limiting factors to these types of resin-coated proppants. The most daunting factor in the use of resin-coated sands is likely the price, which can be in excess of four times the price of untreated proppant. This often leads to frugality in the use of resin coated sands, often being utilized only in tail end stages of fracturing events. Another detriment to resin-coated proppants is their temperature and pressure sensitivity. Shallow wells, which often exhibit low pressure and temperature, require substantial amounts of chemical activators to allow resin sand to "set up". These activators can often have a negative effect on fracturing fluids. Extremely cool wells may not even be feasible for resin-coated proppants, requiring excessive amounts of activator. This paper details the development and use of a novel chemical-based system as a means of proppant consolidation. The chemical can be pumped on-the-fly, during the fracturing event, and does not require special types of proppant. It is compatible with most water-based fracturing fluids, and has been used successfully in a number of applications, especially in extremely large, multizonal horizontal applications, with a great deal of success.

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