隔漏挤封创新工艺研究

Study on Innovative Technology of Casing Leakage Repairing and Oil Reservoir Plugging

随着城市建设的发展很多老井报废井需要进行永久性封堵,在封堵井施工过程中经常会遇到井油层上部套管有损坏的油水井,此类井通常施工方法、工艺复杂,施工工期长。针对封堵井特点提出了隔漏挤封创新方法,通过现场施工,发现该方法能对油层上部套管有损坏的油水井进行封堵。

With the development of urban construction, it is required that many old abandoned wells should be permanently plugged. In the well sealing process, it is found that the casing above oil reservoir is often damaged, and this kind of wells are of complex well sealing construction technology and long well sealing construction period. For this reason, an innovative casing leakage repairing and oil reservoir plugging construction technology is proposed, and the on-site application shows that the oil and water wells whose casing above oil reservoir is damaged can effectively be plugged using this technology.