Analysis of Annular Pressure Generation Mechanism and Research on Safety Evaluation

With the rapid increase of seasonal heating gas consumption in winter Beijing-Tianjin-Hebei region, existing storage scale and injection production well network central Hebei region can hardly meet demand capacity utilization recovery. Therefore, effective old Wells has become goal construction. However, that have been put back into are mostly converted from depleted reservoirs, which different degrees annular pressure problems. Through investigation investigation, it is found there many factors causing zoning pressure. By analyzing properties with high sulfur content temperature pressure, this paper studies mechanism puts forward safety management method, so as to make evaluation more comprehensive.