浅层外漏抽油机井简易封堵工具研制  

Development of a simple plugging tool for pumping wells with shallow external leakage

作　　者：李东雷[1] LI Donglei(No.5 Oil Production Plant of Daqing Oilfield Co.,Ltd.)

机构地区：[1]大庆油田有限责任公司第五采油厂

出　　处：《石油石化节能与计量》2023年第10期26-30,35,共6页Energy Conservation and Measurement in Petroleum & Petrochemical Industry

摘　　要：针对发生浅层外漏的抽油机井采用大修方式堵漏施工周期长、及时性差、环保隐患大和产量影响较大的问题,开展了浅层外漏抽油机井简易封堵管柱研究。依据漏点分布特点及抽油机井的生产特点,有针对性地设计了适用于外漏点数少且纵向上分布集中的采出井桥式双卡封堵管柱、适用于外漏点数多或纵向上分布零散的采出井单卡大通径封堵管柱和有效消除管柱蠕动对封堵工具影响的双向防蠕动减载工具。通过现场5井次的现场试验应用,浅层外漏抽油机井的简易封堵管柱下井成功率100%,初步实现了对浅层外漏抽油机井的有效治理,为消除地表返液的安全环保隐患、提高生产时率、提前恢复采油提供了技术支撑,累计获得经济效益147.5万元。In view of the problems of long construction period,poor timeliness,great potential en-vironmental hazards and big influence on the production of overhauling and plugging of pumping wells with shallow external leakage,the research on simple plugging string for pumping wells with shallow external leakage is carried out.According to the characteristics of leak point distribution and the pro-duction characteristics of pumping wells,the bridge-type double-clip plugging string with the extrac-tion wells of few leakage points and longitudinal distribution is purposely designed,the single-clip large-diameter plugging string with the extraction wells of more leakage points or longitudinal distribu-tion is designed,and the two-way anti-creep load-reducing tool which can effectively eliminate the influence of pipe creep on plugging tool is designed.Through the field test application of five wells,the success rate of simple plugging string in shallow leakage pumping wells is 100%,and the effective treatment of the shallow external leakage pumping well is preliminarily realized,which provides techni-cal support for eliminating the hidden danger of safety and environmental protection,increasing pro-duction rate and recovering oil recovery ahead of time,and achieves a total economic benefit of 1.475 million yuan.

关 键 词：浅层外漏 桥式封堵 防蠕动 减载工具 简易封堵 

分 类 号：TE93[石油与天然气工程—石油机械设备]