海上油田砾石充填滑套冲蚀性能研究与改进  

Research on erosion of sliding sleeves for gravel packing in offshore oilfields

作　　者：孔学云[1] 杨志国[1] 鞠少栋[1] 陈胜宏[1] 左凯[1] 付利[1] 柴龙顺 

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《中国海上油气》2015年第5期98-101,共4页China Offshore Oil and Gas

基　　金："十二五"国家科技重大专项子课题"完井防砂工具系列化及现场应用(编号:2011ZX05057-002-004)";中国海洋石油总公司科研项目"完井防砂系列工具研制II期(编号:CNOOC-KJ125ZDXM12LTD03JDJL2011)"部分研究成果

摘　　要：针对海上油田砾石充填滑套总成在防砂作业中易冲蚀而导致密封失效问题,通过ANSYS数值模拟和试验井试验验证相结合的方法对砾石充填滑套总成冲蚀性能进行了研究,结果表明充填滑套总成的充填孔、滑套孔及其对应的环空壁面是冲蚀最严重部位。提出了利用PVD技术对充填滑套总成的充填孔、滑套孔及其对应的环空壁面表面进行镀陶瓷处理的改进措施,形成了一套自主开发的抗冲蚀砾石充填滑套总成工具,目前已成功应用于渤海、南海和东海等海域共计82口井120多层砾石充填防砂作业中,滑套密封性能均良好。Sliding sleeve assemblies used in gravel packing operations are likely to be eroded, leading to seal failures during the operations in offshore oilfields. The erosion resistance performance of gravel packing sliding sleeves was studied by ANSYS simulation and experiments. The results show that filling hole, sliding sleeve hole and the corresponding wall are the most serious erosion parts. The sliding surface was plated with ceramic by using PVD technology, which greatly improved the erosion resistance of sliding sleeves, and solved the seal failure problem in sand control operations in 120 formations of 82 wells in Bo- hai, South China Sea and East China Sea.

关 键 词：砾石充填 滑套总成 冲蚀性能 ANSYS模拟 试验井 镀陶瓷 

分 类 号：TE257.3[石油与天然气工程—油气井工程]