Screen coupon (IMAGE) Southwest Research Institute Caption Southwest Research Institute has created and validated new microscopy methods to evaluate erosion in sand screens used in oil and gas production wells. The methods studied the effects of sand-laden slurries as they passed through wire-wrapped sand screens, particularly how the screen erodes as particles pass through the screen gaps. 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.