海上多层防砂生产井新型冲砂管柱设计与应用

摘要

In oil production,due to the formation of sand and fine particles from the output of the formation,they are easy to block the screen and casing annulus,resulting in permeability decrea-ses,causing well productivity decreased gradually and screen erosion damage,conventional sand washing string in many times ripping,operation process is relatively cumbersome and sand opera-tion cycle is longer.In view of the above questions,this paper in the sand washing solution tech-nology is studied based on the combination of the actual data and the data were sand washing string design,detailed design tool,developed to meet the field sand washing plugging tool require-ments,and provide technical support for washing sand plugging of sand control wells.%在油井生产过程中，由于地层砂以及细颗粒从地层产出，容易堵塞筛管和筛套环空，导致渗透性降低，造成油井产能逐渐降低以及筛管冲蚀破坏等问题。常规的冲砂管柱需要下入多趟管柱，作业过程相对繁琐，同时冲砂作业周期较长。在对当前冲砂解堵技术进行调研的基础上，结合现场生产资料和数据进行了管柱和工具设计，研制出满足现场冲砂解堵需求的工具，为防砂井冲砂解堵提供技术保障。