Paper: A Comparison of Measured Versus Predicted Model Fracture Height in The San Andres Formation

This paper presents a discussion of fracture height measured with gamma ray and temperature surveys and fracture height predicted with a real-time model during the pumping of a fracture treatment. The San Andres formation was fracture stimulated ii; six West Texas wells. Each treatment was pumped down the annulus with open-ended tubing in the hole. The open ended tubing pressure was monitored to obtain direct measurement of bottom-hole treating pressure. Throughout each treatment a real-time quasi 3D fracture model was run to predict fracture geometry. After each treatment, gamma ray surveys were run to determine fracture height. A temperature survey was also run in three of the wells. Excellent agreement was obtained between the post stimulation survey fracture height and the quasi 3D model predicted fracture height.