沙漠地区回灌井成井工艺研究

Study on Well Completion Technology of Reinjection Well in Desert Area

为解决沙漠地区回灌井施工成孔难题,从回灌井的成孔顺序、花管下设、砾石填筑方面进行研究,结合工程实例,提出了沙漠地区回灌井施工工序和技术关键。在PVC花管内下设钢管保护,能有效地防止PVC管在灌水结束时发生弯曲和折损,使花管沉降量在要求范围内,保证了回灌井的成孔质量,满足施工进度要求。

To solve the problem of hole forming in the construction of reinjection wells in desert areas,the construction procedures and technical keys of reinjection wells in desert areas are proposed from the aspects of hole forming sequence of reinjection wells,laying of floral tubes,and gravel filling.The steel pipe protection is set under the PVC floral pipe,which can effectively prevent the PVC pipe from bending and breaking at the end of irrigation,keep the settlement of the floral pipe within the required range,ensure the hole forming quality of the reinjection well,and meet the requirements of the construction schedule.