Proppant flow back is a problem for ESPs

Many types of artificial lifts are utilized in oil fields across North America to increase the flow of production liquids to the surface. One of the most effective types of systems commonly used is an electric submersible pump (ESP). ESPs are used in wells with low gas/oil ratios, bubblepoint, or bottomhole ratios in addition to wells with a high water cut or low API gravity fluids. Many improvements over the years have led to an increased use of ESPs, which are considered economical and efficient on a cost-per-barrel basis.  

Over the life of the well, the ESP is exposed to many different factors that can impact the pump’s performance. One very common issue is abrasion caused from solids production, specifically from proppant flowback. In the early stages of production, especially when an ESP is just installed, proppant flowback is typically at its highest rate of occurrence.

In order to achieve a good ESP run life, it is important to control the exposure of the ESP to proppant flowback. One of the most common ways to achieve this is through the use of curable resin coated sand (CRCS). Under temperature and closure pressure, the CRCS will bond to form a pack which controls sand production in addition to maintaining frac width and enhancing permeability.

http://www.hexionfracline.com/flowback-causes-serious-issues-for-esps