Cementing difficulties and countermeasures of deep buried gas storage in Suqiao area

The Suqiao gas storage of Huabei field is buried deep with high formation temperature, so the drilling and completion are difficult. According to the cementing difficulty of Suqiao gas storage, the technical countermeasures are proposed, such as optimizing wellbore scheme and technical casing depth, optimizing well plugging method, optimizing cementing technique, taking cyclone centralizer and cyclone generator, and taking the leading low density and low viscosity slurry with calcium resistance. So far, a part of the studied techniques have been applied in Well Su 4K-3X, and initial effect has been obtained. The study is directional to the following cementing process of Suqiao gas storage.