全通径滑套可溶球座冲蚀数值模拟优化与试验研究  

Numerical Simulation Optimization and Experimental Study on Erosion of Full Bore Sliding Sleeve Soluble Ball Seat

作　　者：李夯 LI Hang(Sinopec Research Institute of Petroleum Engineering,Beijing 100101,China)

机构地区：[1]中石化石油工程技术研究院有限公司,北京100101

出　　处：《石油矿场机械》2024年第1期32-36,共5页Oil Field Equipment

基　　金：国家科技重大专项“低丰度致密低渗油气藏开发关键技术”(2016ZX05048)。

摘　　要：针对常规投球滑套压裂级数受限、球座钻除难度大、无法实现井筒全通径等问题,开展了全通径可溶球座式滑套的研究,通过Fluent软件对全通径滑套用压裂球座进行冲蚀模拟。采用空间填充设计法对球座“凹面”结构进行参数试验,并对其进行响应面预测通过筛选法寻求参数最优值。优选石墨烯、硬质合金两种表现耐冲蚀涂层,通过冲蚀现场试验对比了两种材料的耐冲蚀效果。结果表明:经过响应面参数优化后的“凹面”结构球座平均量损失相比原模型明显降低,经过冲蚀测试发现表面硬质合金球座耐冲蚀性能优于石墨烯球座。研究成果对球座耐冲蚀磨损性能优化改进有指导意义。In response to the problems of limited fracturing stages,difficulty in drilling ball sockets,and inability to achieve full wellbore diameter in conventional ball throwing sliding sleeves,a study was conducted on the full diameter soluble ball socket type sliding sleeve.Erosion simulation was conducted using fluent software on the fracturing ball socket used for full-bore sliding sleeves.The space-filling design method was used to conduct parameter tests on the“concave”structure of the ball socket,and the response surface prediction was performed to seek the optimal parameter value through the screening method.Graphene and cemented carbide were preferred to be erosion-resistant coatings,and the erosion resistance effects of the two materials were compared through erosion field tests.The results show that the average loss of the concave structure ball seat after optimization of response surface parameters is significantly lower than that of the original model,and the erosion test shows that the erosion resistance of the surface carbide ball seat is better than that of the graphene ball seat.The research results have a guiding significance for optimizing and improving the erosion and wear resistance of ball seats.

关 键 词：全通径滑套 可溶球座 结构优化 

分 类 号：TE934.2[石油与天然气工程—石油机械设备]