摘要
超高压水力射孔技术是通过高压水力射流加研磨材料完成射孔使油套连通的新工艺,它能有效克服常规射孔弹射孔技术造成的压实带和近井地层伤害,使油流通道更加清洁。为了验证超高压水力射孔技术相关参数的影响,开展了超高压水力射孔地面模拟实验研究。利用自主研发的超高压水力射孔地面实验装置,对标准贝雷砂岩进行超高压水力射孔地面模拟实验,通过改变注入压力、增加水射孔研磨材料及射孔时间的长短,研究3种因素对射孔效果的影响。实验结果表明射孔的注入压力与射孔深度成正比;研磨材料的增加能极大地增加射孔深度;射孔至极限深度后,随着射孔时间的增加,射孔深度基本不变。该实验结果对超高压射孔技术的深入研究和具体应用具有参考意义。
The hydraulic perforating technology with ultra-high pressure is a new technology that uses high-pressure hydraulic jets and grinding materials to fulfill the perforation to connect the tubing and casing.It can effectively avoid the compaction zone and near-well formation damage caused by the conventional perforation technology,so as to make the oil flow channel cleaner.In order to understand the influence of relevant parameters of hydraulic perforation technology with ultra-high pressure,the research on ground simulation experiment of hydraulic perforating with ultra-high pressure was carried out.Using the self-developed ground experiment device of hydraulic perforation with ultra-high pressure,the ground simulation experiment of hydraulic perforation was carried out on the standard Bailey sandstone.By changing the injection pressure,increasing the hydraulic perforation grinding materials and the perforation lasting time,the influence of three factors on the perforation effect was studied.The experimental results showed that the injection pressure of perforation is proportional to the perforation depth.The increase of grinding materials can greatly increase the perforation depth.After perforation reaches the limit depth,the perforation depth is basically unchanged with the increase of perforation time.The experimental results have reference significance for the in-depth study and specific application of perforation technology with ultra-high pressure.
作者
韩宇
Han Yu(Production Technology Institute of Daqing Oilfield Limited Company;Heilongjiang Provincial Key Laboratory of Oil and Gas Reservoir Stimulation)
出处
《采油工程》
2021年第3期24-28,82,共6页
Oil Production Engineering
关键词
超高压
水力射孔
研磨材料
注入压力
射孔时间
ultra-high pressure
hydraulic perforation
grinding material
injection pressure
perforation time
作者简介
韩宇,1984年生,男,工程师,现主要从事聚合物驱及三元复合驱分注及测试工艺技术研究。邮箱:cyyhanyu@petrochina.com.cn。
