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针对元坝204-2井高压水层与漏失层同层的特点,在多次采用正反注常规堵漏方法无效的情况下,采用先注特种凝胶ZND-2,跟注水泥浆的堵漏技术。介绍了特种凝胶ZND-2的室内评价和现场应用情况。结果表明,在元坝气田,特种凝胶堵漏技术满足复杂井况,尤其是喷漏同层的要求下,成功封住了高压水层与漏失层。该智能凝胶使用范围广,用量小,效果好,具有很好的应用推广前景。
According to the characteristics of the same layer of high pressure water layer and leaking layer in Yuanba 204-2 well, using the first note special gel ZND-2, the plugging of grout technology. The indoor evaluation and field application of special gel ZND-2 are introduced. The results show that, in the Yuanba gas field, special gel plugging technology to meet the complex well conditions, especially the requirements of the same spray, the successful seal of the high pressure water layer and the loss of layer. The use of a wide range of intelligent gel, dosage is small, the effect is good, with good prospects for the promotion of the application.