海上水基钻屑高效密闭输送技术
Efficient Closed Transportation Technologies for Offshore Water-Based Drilling Cuttings
王景 1祁健 1岳明2
作者信息
- 1. 中海油节能环保服务有限公司,天津 300452
- 2. 中海石油(中国)有限公司天津分公司,天津 300452
- 折叠
摘要
为解决海上水基钻屑回收过程中输送效率低、环保风险高等问题,在分析水基钻屑特性及输送难点的基础上,研究了适用于海上水基钻屑输送的高效密闭输送技术,分析了钻屑输送过程中的摩阻,进行了降阻和防堵清管技术研究.模型计算结果与现场试验表明,水基钻屑密闭输送宜采用液压输送方式,结合输送管道设计和增压混合器,有效降阻提速,当泵送速度设置为 30%～100%时,输送量 7.5～25.7 m3/h,泵送压力 1.4～2.8 MPa.研究结果表明,海上水基钻屑密闭输送技术解决了水基钻屑高效、密闭、远距离输送的难题,能够满足海上钻井作业的需要,具有较好的推广应用价值.
Abstract
In order to solve the problems of low transportation efficiency and high environmental protection risks in the process of offshore water-based drilling cuttings recovery,based on the analysis of the characteristics and transportation difficulties of water-based drilling cuttings,a set of efficient closed transportation technologies suitable for offshore water-based drilling cuttings transportation was studied,and the frictional resistance in the transportation process of drilling cuttings was analyzed.Research on resistance reduction and anti-blocking pigging technologies was also conducted.The model calculation results and field test data showed that the closed transportation of water-based drilling cuttings should adopt hydraulic transportation technology,combined with the design of transportation pipeline and pressurized mixer,to effectively reduce resistance and improve the velocity.When the pumping speed was set at 30%-100%,the transportation capacity was 7.5-25.7 m3/h,and the pumping pressure was 1.4-2.8 MPa.The research results show that the closed transportation technology of offshore water-based drilling cuttings solves the problems of efficient,closed,and long-distance transportation of water-based drilling cuttings.It can meet the needs of offshore drilling operations and is of great popularization,application,and commercialization value.
关键词
水基钻屑/海上/密闭输送/黏滞性/降阻Key words
water-based drilling cuttings/offshore/closed transportation/viscosity/resistance reduction引用本文复制引用
出版年
2024
NETL
NSTL
万方数据