Sand Screen (IMAGE) Southwest Research Institute Caption Southwest Research Institute used image microscopy to create a more effective, comprehensive method of characterizing erosion in wire-wrapped sand screens used in oil and gas wells, with warmer colors representing larger gaps. Using the technique, the industry could more accurately predict the functional life of the screen at a particular well condition. Credit Southwest Research Institute Usage Restrictions Images/videos may be used by the media and the public for educational and informational purposes only. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.