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目前来看,我国油田水平井固井施工仍存在套管较难居中、固井驱替效率低和封固质量较差的质量通病,导致水平井固井达不到使用要求,使水平井根本不能发挥其具有的优势作用。为有效提高水平井固井质量,应采用行之有效的新型施工工艺技术,比如选用韧性胶乳水泥浆体系、高效易于冲洗且具有固井作用的冲洗液、扶正器的合理安装,以及其他配套施工工艺技术等,确保水平井固井质量的提高,以满足水平井实际优势作用的有效发挥。
At present, there are still some problems in cementing horizontal wells in China. For example, the casing is more difficult to center, the cementing efficiency is lower and the quality of the sealing quality is poorer. As a result, horizontal well cementing can not meet the requirements for cementing, Can not play its advantage. In order to effectively improve the quality of horizontal well cementing, effective new construction technology should be adopted, such as the selection of ductile latex slurry system, efficient and easy to flush with a well cementing flushing fluid, centralizer proper installation, and other supporting construction Technology, etc., to ensure the horizontal well cementing quality improvement to meet the practical advantages of horizontal well play an effective role.