西南石油大学学报(自然科学版) ›› 2017, Vol. 39 ›› Issue (1): 169-176.DOI: 10.11885/j.issn.1674-5086.2015.07.01.23

• 石油机械与油田化学 • 上一篇    下一篇

模拟套管固井滑套工况下冲蚀实验方案设计

王国荣1, 钱权1, 杨昌海1, 魏辽2, 郭朝辉2   

  1. 1. 西南石油大学机电工程学院, 四川 成都 610500;
    2. 中国石化石油工程技术研究院, 北京 朝阳 100101
  • 收稿日期:2015-07-01 出版日期:2017-02-01 发布日期:2017-02-01
  • 通讯作者: 王国荣,E-mail:swpi2002@163.com
  • 作者简介:王国荣,1977年生,男,汉族,湖北仙桃人,教授,博士,主要从事摩擦学理论及应用、钻头与井下工具、石油天然气装备现代设计理论及方法方面的研究。E-mail:swpi2002@163.com;钱权,1990年生,男,汉族,四川巴中人,硕士研究生,主要从事石油井控装备磨损方面的研究工作。E-mail:499870502@qq.com;杨昌海,1988年生,男,汉族,四川成都人,硕士研究生,主要从事石油装备动力学分析、表面织构技术减磨等方面的研究。E-mail:jushuichi@163.com;魏辽,1984年生,男,湖南湘乡人,工程师,主要从事油田井下工具及新材料研发工作。E-mail:weiliao.sripe@shelfoil.com;郭朝辉,1980年生,男,汉族,河北元氏人,高级工程师,硕士,主要从事石油固完井工具研发工作。E-mail:gzh@shelfoil.com

Schematic Design of Erosion Test on Cementing Sliding Sleeves in Fracturing Operations

WANG Guorong1, QIAN Quan1, YANG Changhai1, WEI Liao2, GUO Zhaohui2   

  1. 1. School of Mechatronic Engineering of Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. Research Institute of Petroleum Engineering, SINOPEC, Chaoyang, Beijing 100101, China
  • Received:2015-07-01 Online:2017-02-01 Published:2017-02-01

摘要: 新研发的井下工具必须经严格实验检验才能投放现场,因此,实际工况的准确模拟显得尤为重要。针对固井滑套在压裂时具有大排量与高含砂比的特点,设计了四泵串并联方式的工况模拟实验模型。根据实验条件,先假设冲蚀实验设备连接方案为两泵并联方式,而理论计算得出泵为管路所提供的扬程需达到35.82 m,与实测单台离心泵Q-H特性曲线相结合,最终确定了设备连接方案为四泵串并联方式。通过监测模拟冲蚀实验中的排量与含砂比,结果表明,所设计的实验方案能够满足模拟大排量(4.5~7.0 m3/min)、高含砂比(体积比25%)的冲蚀要求且存在较大余量;同时得出进行压裂作业时不同孔眼数的滑套对管路整体压力损耗、实验流量、泵送能力等影响明显。

关键词: 固井滑套, 冲蚀模拟, 扬程计算, Q-H特性曲线, 四泵串并联

Abstract: New downhole tool inventions should be used after severe tests because the accurate simulation of the actual working conditions is very important. This study explains a four-serial-parallel pump test model to simulate erosion with the creation of a large discharge and high sand content when cementing sliding sleeves were in the operating mode. First, the equipment connection scheme was hypothesized for a two-parallel pump model according to the field test conditions. Then, the equipment connection was designed so that the pump lift in the pipelines reached 35.82 m based on detailed theoretical calculation. With this figure and the H-Q characteristic curve of the actual measurement of one centrifugal pump, the equipment connection was set up as a four-serial-parallel pump model. The simulation results showed that the scheme met the erosion requirements for a large discharge (4.5 to 7.0 m3/min) and high sand content (volume ratio of 25%) and had a large allowance. Furthermore, the test showed that in all fracturing operations, different numbers of sliding sleeve eyelets influenced the overall pipeline pressure loss, test flow, and pump efficiency.

Key words: cementing sliding sleeve, erosion test, head computing, Q-H characteristic curve, four-serial-parallel-pump

中图分类号: