ABSTRACT

Sand (or “nes”) production is common in many oil and gas wells throughout the world. The ow of abrasive sand through wells and production lines causes unwanted erosion of equipment, and its production may also exacerbate oil-water separation in the process facilities. There are a number of ways to reduce sand production mechanically, including the use of screens, gravel packing, frac packing, and modication to the perforation technique usually carried out at the well-completion stage. For poorly consolidated reservoirs, which are still producing excessive sand, chemical sand control can be an option. This can be especially rewarding for subsea wells if expensive intervention costs can be avoided.