海上油田固井防砂一体化技术

发布时间：2018-03-22 00:25

本文选题：固井　切入点：防砂　出处：《石油钻采工艺》2017年05期 　论文类型：期刊论文

【摘要】：为了解决老井开窗后固井与防砂问题。根据海上油田层系复杂、出砂严重、作业日费高等特点,研究了一种适用于海上油田的新型固井防砂一体化工艺技术,该技术一趟钻将防砂管柱与固井管柱下入井内,然后通过在不同位置的操作,可实现上部问题井段的固井作业和下部油层段的防砂作业,作业过程中可控制防砂段的静液柱压力,防止地层坍塌,作业结束后无需钻塞,避免了水泥对储层的污染,完井后管柱通径较大,利于后期开采或修井作业。该技术解决了长期困扰海上油田老井改造的技术难题,同时该技术在降低完井成本和后期作业难度等方面起到了积极作用。
[Abstract]:In order to solve the problem of cementing and sand control after opening window in old wells, according to the characteristics of complex strata, serious sand production and high daily operating cost in offshore oil fields, a new integrated cementing and sand prevention technology suitable for offshore oil fields is studied. With this technique, the sand control string and cementing string are drilled into the well, and the cementing operation of the upper problem well section and the sand control operation of the lower reservoir section can be realized by the operation in different positions. In the process of operation, the hydrostatic column pressure of sand control section can be controlled to prevent the formation from collapsing. After the operation, there is no need to drill plug, thus avoiding the cement pollution to the reservoir, and the pipe string diameter after completion of the well is large. This technique has solved the technical problems that haunt the old well reconstruction in offshore oil fields for a long time, and has played an active role in reducing the completion cost and the difficulty of later operation.
【作者单位】：中海油能源发展股份有限公司工程技术分公司;中海油有限公司天津分公司;
【基金】：中国海洋石油总公司项目“完井防砂系列工具研制Ⅲ期”(编号:CNOOC-KJ135KJXMNFGJ2016-01)
【分类号】：TE53

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