深海泥浆举升泵设计与水力特性研究
Study on the design and hydraulic characteristics of the submarine mud lift pump
秦如雷 1高洁云 1于彦江 2陈浩文 1李强 3和国磊 1宿向辉 4许本冲1
作者信息
- 1. 中国地质科学院勘探技术研究所,河北 廊坊 065000;中国地质学会自动化智能化钻探装备创新基地,河北 廊坊 065000;中国地质调查局深部探测钻探装备技术创新中心,河北 廊坊 065000
- 2. 广州海洋地质调查局,广东 广州 511458
- 3. 中国冶金地质总局山东正元地质勘查院,山东 济南 250101
- 4. 浙江理工大学机械与自动控制学院,浙江 杭州 310018
- 折叠
摘要
泥浆举升离心泵作为无隔水管泥浆循环钻井的核心功能单元,作用是驱动储存在吸入模块中的泥浆携带岩屑沿上返管线回流至钻井平台.以往的无隔水管泥浆循环系统以圆盘泵作为举升单元,围绕圆盘泵做了具体的结构设计和理论分析,对于水力性能更好的多级离心泵研究较少.以多级离心泵作为研究对象,介绍其设计的理论依据及具体的参数,采用CFD-DEM耦合计算的方法构建离心泵的计算模型,进行了全尺度流场模拟,对离心泵的叶轮设计、流场和内颗粒分布规律、泥浆携岩运移规律进行了探讨.计算结果验证了离心泵在设计工况下具有较好的颗粒通过性.基于泥浆举升试验台,对离心泵样机进行了水力性能试验,测试结果表明该泵具有较好的工作特性,其水力性能达到设计要求,可以应用于深海无隔水管钻井作业.
Abstract
As the core functional unit of riserless mud recovery system,the mud lifting centrifugal pump drives the mud stored in the suction module to carry rock cuttings recirculate back to the drilling platform through the return pipeline.Previous designs of the riserless mud recovery system primarily employed disc pumps as the lifting unit,with specific structural design and theoretical analysis conducted around them.However,there has been limited research on multi-stage centrifugal pumps,which offer superior hydraulic performance.In this study,we focus on the theoretical basis and specific parameters of a multi-stage centrifugal pump,and develop a computational model using CFD-DEM coupling calculation to conduct a full-scale flow field simulation.This simulation investigates the impeller design,flow field characteristics,internal particle distribution patterns,and mud rock transport patterns within the pump.The results validate the centrifugal pump's good particle permeability under design conditions.Furthermore,we conducted hydraulic performance tests on a centrifugal pump prototype using a mud lifting test bench.The test resultsindicate that the pump exhibits satisfactory operational working characteristics and hydraulic performance,meeting the design requirements for application in deep-sea riserless drilling operations.
关键词
泥浆举升泵/多级离心泵/RMR技术/CFD-DEM双向同步耦合/水力性能试验/深海钻探Key words
mudlift pump/multi-stage centrifugal pump/RMR technology/CFD-DEM bidirectional synchronous coupling/hydraulic performance test/deep sea drilling引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据