水力喷射压裂用喷嘴耐冲蚀试验方法研究
发布时间：2018-10-26 19:25
【摘要】：喷砂射孔所用磨料、压裂液和支撑剂均需通过喷嘴,并以较高的压力和排量被泵注到地层和裂缝中,导致喷嘴冲蚀严重及其内部流道变形,这将降低喷嘴的冲蚀切割能力,对压裂施工的顺利进行产生很大的影响。鉴于此,对水力喷射压裂喷嘴冲蚀程度随喷射时间变化的规律进行试验研究。设计了试验方案,分析了喷嘴冲蚀特性,确定了试验参数,并得到了喷嘴直径与时间的拟合模型。试验结果表明:在排量3 m~3/min、砂比10%的工况下,喷嘴内壁的破坏形式以微切削和疲劳损伤为主,喷嘴出口处脆性破坏明显;喷嘴直径及喷嘴质量与磨蚀时间具有明显的线性关系。研究结果对工具的合理使用和延长工具使用寿命有着重要的指导意义。
[Abstract]:The abrasive, fracturing fluid and proppant used for sandblasting perforation need to pass through the nozzle and pump into the formation and fracture with high pressure and displacement, resulting in the serious erosion of the nozzle and the deformation of the internal runner, which will reduce the erosion cutting ability of the nozzle. It has a great influence on the smooth operation of fracturing. In view of this, the law that the erosion degree of hydraulic jet fracturing nozzle varies with injection time is studied experimentally. The test scheme was designed, the erosion characteristics of the nozzle were analyzed, the test parameters were determined, and the fitting model of nozzle diameter and time was obtained. The results show that the failure of nozzle inner wall is mainly in the form of micro-cutting and fatigue damage under the working condition of 3 ~ 3 / min displacement and 10% sand ratio, and the brittle failure is obvious at the nozzle outlet. The diameter of the nozzle and the mass of the nozzle have obvious linear relationship with the abrasion time. The research results have important guiding significance for the rational use of tools and prolonging the service life of tools.
【作者单位】： 中国石油大学(北京)油气资源与探测国家重点实验室;江苏博际喷雾系统有限公司;
【基金】：国家自然科学基金项目“连续油管调制局部欠平衡钻井水力特性研究”(51474232) 江苏省科技成果转化专项资金资助项目“油气钻井用水力脉冲空化射流发生装置关键技术研发及产业化”(BA2014131)
【分类号】：TE934.2
[Abstract]:The abrasive, fracturing fluid and proppant used for sandblasting perforation need to pass through the nozzle and pump into the formation and fracture with high pressure and displacement, resulting in the serious erosion of the nozzle and the deformation of the internal runner, which will reduce the erosion cutting ability of the nozzle. It has a great influence on the smooth operation of fracturing. In view of this, the law that the erosion degree of hydraulic jet fracturing nozzle varies with injection time is studied experimentally. The test scheme was designed, the erosion characteristics of the nozzle were analyzed, the test parameters were determined, and the fitting model of nozzle diameter and time was obtained. The results show that the failure of nozzle inner wall is mainly in the form of micro-cutting and fatigue damage under the working condition of 3 ~ 3 / min displacement and 10% sand ratio, and the brittle failure is obvious at the nozzle outlet. The diameter of the nozzle and the mass of the nozzle have obvious linear relationship with the abrasion time. The research results have important guiding significance for the rational use of tools and prolonging the service life of tools.
【作者单位】： 中国石油大学(北京)油气资源与探测国家重点实验室;江苏博际喷雾系统有限公司;
【基金】：国家自然科学基金项目“连续油管调制局部欠平衡钻井水力特性研究”(51474232) 江苏省科技成果转化专项资金资助项目“油气钻井用水力脉冲空化射流发生装置关键技术研发及产业化”(BA2014131)
【分类号】：TE934.2
【相似文献】
相关期刊论文 前10条
1 ;水力喷射器在连续式薄膜浓缩上的应用[J];上海化工;1974年01期
2 David A·Summers;郭文芝;;水力喷射钻进发展的现状[J];国外地质勘探技术;1986年10期
3 孟祥伟;影响水力喷射器真空效果的几个因素及对策[J];四川粮油科技;2000年02期
4 张波;深穿透水力喷射切割增产技术[J];油气地质与采收率;2005年05期
5 田守]，
本文编号：2296718
本文链接：https://www.wllwen.com/kejilunwen/shiyounenyuanlunwen/2296718.html
