人工井壁涂覆砂材料抗冲刷性能研究  

Study on Anti-scour Performance of Artificial Shaft Wall Coated Sand Material

作　　者：张云飞 苏延辉 史斌 江安 夏环宇 崔国亮 ZHANG Yun-fei;SU Yan-hui;SHI-Bin;JIANG An;XIA Huan-yu;CUI Guo-liang(CNOOC Ener Tech-Drilling and Production Company,Tianjin 300452,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《辽宁化工》2022年第2期167-169,173,共4页Liaoning Chemical Industry

基　　金：中海油能源发展重大科技专项,疏松砂岩过筛管压裂工艺技术优化研究(项目编号:HFZXKT-GJ2020-01-03);中海油工程技术分公司项目,注水井人工井壁涂覆砂材料研究(项目编号:GCJSXMHT-E1906)。

摘　　要：为研究人工井壁涂覆砂材料抗冲刷性能,研制了由冲刷泵、耐冲刷测试系统、过滤及水箱模块、上覆压力自动加载模块及数据采集控制模块构成的冲刷试验装置,利用该试验装置对人工井壁涂覆砂材料固结岩心开展了不同冲刷排量、冲刷压差及冲刷时间的冲刷破坏试验,分析了固结岩心冲刷后的表观形貌、冲刷率以及单轴抗压强度的变化情况,结果表明:固结岩心受冲刷作用后,入口端的冲蚀破坏程度要高于出口端,抗压强度保留率仅为原来的67.96%,冲刷排量为25 L·min^(-1)时,冲刷过程仅维持了4 h。冲刷破坏试验表明,即使是人工井壁涂覆砂材料的抗压强度能够满足行业标准的技术要求,但仍尚宜检测其抗冲刷性。In order to study the anti-scour performance of sand coating material for artificial shaft wall,a scour test device was developed,including scour pump,erosion resistance test system,filter and water tank module,automatic loading module of overburden pressure and data acquisition and control module.The test device was used to test the consolidated core with sand coated material on the artificial shaft lining with different flushing displacement,scouring pressure difference and scouring time.The changes of apparent morphology,erosion rate and uniaxial compressive strength of consolidated core after scouring were analyzed.The results showed that the erosion damage at the inlet was higher than that at the outlet,and the compressive strength retention rate was only 67.96%of the original level.When the displacement was 25 L·min^(-1),the erosion process only lasted for 4 h.Even though the compressive strength of the sand coated material for artificial shaft lining can meet the technical requirements of the industry standard,its anti-scouring property still needs to be tested.

关 键 词：涂覆砂材料 抗冲刷 人工井壁 试验装置 

分 类 号：TQ016[化学工程]