石油钻采工艺2017，Vol.39Issue(5)：570-573,4.DOI:10.13639/j.odpt.2017.05.007
海上油田固井防砂一体化技术
Integrated cementing and sand control technology in offshore oilfields
摘要
Abstract
In order to deal with cementing and sand control in old wells after window cutting, a new type of integrated cementing and sand control technology suitable for offshore oilfields was developed based on the characteristics of offshore oilfields, e.g. complex formation, serious sand production and high daily operation cost. By virtue of this technology, both sand control string and cementing string are run in the hole by one trip. Then, the cementing operation in the upper troubled section and the sand control in the lower oil layer can be realized by carrying out the operation in different locations. During the operation, the hydrostatic column pressure of sand control interval can be controlled to prevent formation collapse. After the operation, plug drilling is not needed, so reservoir contamina-tion is avoided. The string size after the completion is larger, and it is conducive to the late production or workover. This technology solves the technical difficulties that have hindered the stimulation of old wells in offshore oilfields for a long time, and also plays an active role in reducing the completion cost and alleviating the operation difficulty in the late stage.关键词
固井/防砂/一体化/老井侧钻/海上油田Key words
cementing/sand control/integration/old well sidetracking/offshore oilfield分类
能源科技引用本文复制引用
魏爱拴,陈胜宏,许杰,左凯,郝宙正,王明杰..海上油田固井防砂一体化技术[J].石油钻采工艺,2017,39(5):570-573,4.基金项目
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). （编号:CNOOC-KJ135KJXMNFGJ2016-01）
